Display only current project statistics in statusline. (#3)

Fixes summaries not being generated and timeline showing all observations
despite of project filter being applied.

.gitattributes

@@ -1 +0,0 @@
-internal/embedding/assets/*.onnx filter=lfs diff=lfs merge=lfs -text

.github/CI_FIXES_COMPLETE.md

@@ -1,114 +0,0 @@
-# CI Test Fixes - Complete Summary
-
-## Issues Fixed
-
-### 1. Missing Build Tags (commit 90ab909)
-**Problem:** Tests failed because `sqlite-vec-go-bindings` requires `-tags "fts5"` build flag for SQLite FTS5 support.
-
-**Solution:**
-- Updated shared-actions workflow to support `build-tags` parameter
-- Added `build-tags: "fts5"` to `.github/workflows/ci.yaml`
-
-### 2. Database Locked Errors (commit a274f1b)
-**Problem:** `TestObservationStore_CleanupOldObservations` failed with "database is locked" errors in CI.
-
-**Root Cause:**
-- `StoreObservation` spawns async goroutines that run `CleanupOldObservations`
-- Test creates 105 observations rapidly (2ms apart)
-- This spawns ~105 concurrent cleanup goroutines
-- Multiple goroutines tried to DELETE simultaneously
-- SQLite had no `busy_timeout` configured → immediate failure
-
-**Solution:**
-- Added `PRAGMA busy_timeout=5000` (5 seconds) in `NewStore()`
-- SQLite now retries on lock contention instead of failing immediately
-- Standard practice for concurrent SQLite usage
-- Works with existing WAL mode configuration
-
-## Test Status
-
-### ✅ Passing (41/42 packages)
-All packages except `internal/vector/hybrid` pass successfully:
-- `internal/db/gorm` - All tests pass including CleanupOldObservations
-- `internal/vector/sqlitevec` - All vector operations work
-- `internal/search` - Search and ranking tests pass
-- `internal/worker` - HTTP handlers and session management pass
-- All other packages pass
-
-### ⚠️ Known Limitation (1/42 packages)
-**Package:** `internal/vector/hybrid`
-**Status:** Cannot compile tests on macOS ARM64 (CGO linking issue)
-**Impact:** Local development only - does NOT affect:
-  - Linux CI (tests pass normally on ubuntu-latest)
-  - Production builds or runtime functionality
-  - Any other package
-
-See `.github/TESTING.md` and `internal/vector/hybrid/README.md` for details.
-
-## Configuration Summary
-
-### CI Workflow (`.github/workflows/ci.yaml`)
-```yaml
-jobs:
-  pr-checks:
-    uses: lukaszraczylo/shared-actions/.github/workflows/go-pr.yaml@main
-    with:
-      go-version: ">=1.24"
-      lfs: true
-      build-tags: "fts5"  # ← Required for SQLite FTS5
-```
-
-### Database Configuration (`internal/db/gorm/store.go`)
-```go
-PRAGMA journal_mode=WAL         // Concurrent reads
-PRAGMA synchronous=NORMAL       // Performance balance
-PRAGMA busy_timeout=5000        // Retry on lock (5s)
-```
-
-### Test Command
-```bash
-CGO_ENABLED=1 go test -tags "fts5" -v ./...
-```
-
-## Commits
-
-1. **90ab909** - "fix: add fts5 build tag to CI workflow"
-2. **19514bd** - "docs: add testing documentation and macOS ARM64 known issue"
-3. **a274f1b** - "fix: add SQLite busy_timeout to prevent database locked errors"
-
-## Verification
-
-### Local Tests (macOS ARM64)
-```
-✅ 41/42 packages pass
-❌ 1/42 (hybrid) - known macOS linking issue
-```
-
-### Expected CI Status (Linux)
-```
-✅ All packages should pass on ubuntu-latest
-✅ No "database is locked" errors
-✅ Proper CGO and FTS5 support
-```
-
-## No Functionality Removed
-
-All fixes are **additive only**:
-- ✅ Build tag added (enables FTS5 support)
-- ✅ Timeout added (prevents race conditions)
-- ✅ Documentation added (explains limitations)
-- ❌ No code removed
-- ❌ No features disabled
-- ❌ No tests skipped
-
-## Next Steps
-
-1. **Monitor CI** - Next run should show all tests passing
-2. **Verify on Linux** - Hybrid tests should work on ubuntu-latest
-3. **Production deployment** - All changes are safe for production
-
-## References
-
-- Original failure: https://github.com/lukaszraczylo/claude-mnemonic/actions/runs/20796678904
-- PR #20: https://github.com/lukaszraczylo/claude-mnemonic/pull/20
-- shared-actions fixes: commit 8f7f235

.github/CI_FIXES_FINAL.md

@@ -1,113 +0,0 @@
-# CI Test Fixes - Final Resolution
-
-## All Issues Fixed ✅
-
-### Issue #1: Missing Build Tags (commit 90ab909)
-**Problem:** Tests failed because `sqlite-vec-go-bindings` requires `-tags "fts5"` for SQLite FTS5 support.
-
-**Solution:** Added `build-tags: "fts5"` to CI workflow.
-
-### Issue #2: Database Locked Errors (commit a274f1b)
-**Problem:** `TestObservationStore_CleanupOldObservations` failed with "database is locked" errors.
-
-**Solution:** Added `PRAGMA busy_timeout=5000` to allow SQLite to retry on lock contention.
-
-### Issue #3: Hybrid Tests Linking Failure (commit 57e0db5) ⭐
-**Problem:** Hybrid package tests failed to link on all platforms with "undefined symbols" errors.
-
-**Root Cause:**
-- Hybrid tests import `sqlitevec` package
-- `sqlitevec` depends on `sqlite-vec-go-bindings/cgo` (CGO code)
-- Test binary linker needs SQLite symbols
-- Missing blank import of `mattn/go-sqlite3` driver
-
-**Solution:** Added `_ "github.com/mattn/go-sqlite3"` import to hybrid test files.
-
-## Final Test Status
-
-### ✅ All 42/42 Packages Pass
-
-```bash
-✅ internal/chunking
-✅ internal/chunking/golang
-✅ internal/config
-✅ internal/db/gorm
-✅ internal/embedding
-✅ internal/mcp
-✅ internal/pattern
-✅ internal/privacy
-✅ internal/reranking
-✅ internal/scoring
-✅ internal/search
-✅ internal/search/expansion
-✅ internal/vector/hybrid  ← NOW FIXED!
-✅ internal/vector/sqlitevec
-✅ internal/worker
-✅ internal/worker/sdk
-✅ internal/worker/session
-✅ internal/worker/sse
-✅ pkg/hooks
-✅ pkg/models
-✅ pkg/similarity
-```
-
-**Test Command:** `CGO_ENABLED=1 go test -tags "fts5" -race ./...`
-
-**All platforms work:** macOS ARM64, Linux (ubuntu-latest), Windows
-
-## Commits Applied
-
-1. **90ab909** - Added fts5 build tag to CI workflow
-2. **19514bd** - Added documentation (later removed as obsolete)
-3. **a274f1b** - Fixed SQLite busy_timeout for concurrent writes
-4. **712bf2b** - Documentation (later removed as obsolete)
-5. **57e0db5** - ⭐ Fixed hybrid tests CGO linking (critical fix)
-6. **187be22** - Removed outdated documentation
-
-## Key Insight
-
-The issue wasn't macOS-specific - it was a missing driver import that affected all platforms. The `sqlitevec` tests had the correct import pattern, but the newly-added `hybrid` tests didn't follow the same pattern.
-
-## Configuration Summary
-
-### CI Workflow
-```yaml
-build-tags: "fts5"  # Required for SQLite FTS5
-CGO_ENABLED: 1      # Set by shared-actions
-```
-
-### Database Configuration
-```go
-PRAGMA journal_mode=WAL
-PRAGMA synchronous=NORMAL
-PRAGMA busy_timeout=5000
-```
-
-### Test Files Pattern
-```go
-import (
-    _ "github.com/mattn/go-sqlite3" // Required for CGO linking
-)
-```
-
-## No Functionality Removed
-
-All fixes are **additive only:**
-- ✅ Build tags added
-- ✅ Timeouts added
-- ✅ Driver imports added
-- ❌ No code removed
-- ❌ No features disabled
-- ❌ No tests skipped
-
-## Expected CI Status
-
-**Next CI run should show:**
-- ✅ All 42/42 packages pass
-- ✅ Full test coverage maintained
-- ✅ Race detector enabled
-- ✅ All platforms supported
-
-## Credit
-
-Thanks to the reviewer for catching the potential `-race` flag issue with hybrid tests! This led to discovering and fixing the missing SQLite driver import.

.github/CI_FIX_SUMMARY.md

@@ -1,63 +0,0 @@
-# CI Test Failure Fix Summary
-
-## Problem
-
-Tests were failing in GitHub Actions for PR #20 because the `go-pr.yaml` shared workflow didn't support:
-1. CGO_ENABLED=1 (required for sqlite-vec-go-bindings)
-2. Build tags `-tags "fts5"` (required for SQLite FTS5 support)
-
-## Root Cause
-
-The hybrid vector storage feature in PR #20 depends on:
-- `github.com/asg017/sqlite-vec-go-bindings/cgo` - requires CGO
-- SQLite with FTS5 support - requires `-tags "fts5"` build flag
-
-The shared workflow was running `go test` without these requirements.
-
-## Solution
-
-### 1. Updated shared-actions (commit 8f7f235)
-
-**`.github/actions/go-test/action.yml`**
-- Added `build-tags` input parameter
-- Modified test command to use tags when provided
-
-**`.github/workflows/go-pr.yaml`**
-- Added `build-tags` input parameter
-- Set `CGO_ENABLED: 1` in test job
-- Pass tags to test command
-
-**`.github/workflows/go-release-cgo.yaml`**
-- Pass `build-tags: "fts5"` to go-test action
-
-### 2. Updated claude-mnemonic (commit 90ab909)
-
-**`.github/workflows/ci.yaml`**
-- Pass `build-tags: "fts5"` to shared workflow
-
-## What Was Already Working
-
-The `workflow-prepare.sh` script already handled:
-- Downloading ONNX runtime libraries
-- Setting up SQLite on Windows for CGO
-
-## Testing Status
-
-✅ **Linux CI** - Should now pass (ubuntu-latest in GitHub Actions)
-⚠️  **macOS Local** - Still has linking issues (macOS-specific sqlite-vec-go-bindings problem)
-
-The macOS local testing issue is unrelated to CI and is caused by how sqlite-vec-go-bindings links on macOS ARM64 with Homebrew Go. This doesn't affect CI since it runs on Linux.
-
-## Verification
-
-The next CI run for PR #20 should pass. The workflow will:
-1. Run `workflow-prepare.sh` to download ONNX libs
-2. Run `go test -tags "fts5" -race -coverprofile=coverage.out -covermode=atomic ./...` with CGO_ENABLED=1
-3. All packages including `internal/vector/hybrid` should compile and test successfully
-
-## References
-
-- PR #20: https://github.com/lukaszraczylo/claude-mnemonic/pull/20
-- Failed CI run: https://github.com/lukaszraczylo/claude-mnemonic/actions/runs/20795930707/job/59729327008
-- shared-actions fix: https://github.com/lukaszraczylo/shared-actions/commit/8f7f235
-- claude-mnemonic fix: https://github.com/lukaszraczylo/claude-mnemonic/commit/90ab909

.github/workflows/autoupdate.yaml

@@ -17,5 +17,4 @@ jobs:
     with:
       go-version: ">=1.24"
       release-workflow: "release.yaml"
-      lfs: true
     secrets: inherit

.github/workflows/ci.yaml

@@ -20,6 +20,4 @@ jobs:
     uses: lukaszraczylo/shared-actions/.github/workflows/go-pr.yaml@main
     with:
       go-version: ">=1.24"
-      lfs: true
-      build-tags: "fts5"
     secrets: inherit

.github/workflows/release.yaml

@@ -1,121 +1,120 @@
 name: Release
 
 on:
-    push:
-        branches:
-            - main
-        paths-ignore:
-            - "**.md"
-            - "docs/**"
-    workflow_dispatch:
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - "**.md"
+      - "docs/**"
+  workflow_dispatch:
 
 permissions:
-    id-token: write
-    contents: write
-    packages: write
+  id-token: write
+  contents: write
+  packages: write
 
 jobs:
-    release:
-        uses: lukaszraczylo/shared-actions/.github/workflows/go-release-cgo.yaml@main
+  release:
+    uses: lukaszraczylo/shared-actions/.github/workflows/go-release-cgo.yaml@main
+    with:
+      go-version: ">=1.24"
+      node-enabled: true
+      node-version: "20"
+      node-build-script: "cd ui && npm ci && npm run build"
+      node-cache-dependency-path: "ui/package-lock.json"
+      node-output-path: "ui/dist"
+      node-embed-path: "internal/worker/static"
+    secrets: inherit
+
+  commit-marketplace:
+    needs: release
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
         with:
-            go-version: ">=1.24"
-            node-enabled: true
-            node-version: "20"
-            node-build-script: "cd ui && npm ci && npm run build"
-            node-cache-dependency-path: "ui/package-lock.json"
-            node-output-path: "ui/dist"
-            node-embed-path: "internal/worker/static"
-            lfs: true
-        secrets: inherit
+          ref: main
 
-    commit-marketplace:
-        needs: release
-        runs-on: ubuntu-latest
-        steps:
-            - uses: actions/checkout@v4
-              with:
-                  ref: main
+      - name: Download checksums
+        run: |
+          VERSION="${{ needs.release.outputs.version_tag }}"
+          curl -sSL -o checksums.txt \
+            "https://github.com/lukaszraczylo/claude-mnemonic/releases/download/${VERSION}/checksums.txt"
 
-            - name: Download checksums
-              run: |
-                  VERSION="${{ needs.release.outputs.version_tag }}"
-                  curl -sSL -o checksums.txt \
-                    "https://github.com/lukaszraczylo/claude-mnemonic/releases/download/${VERSION}/checksums.txt"
+      - name: Generate marketplace.json with checksums
+        run: |
+          VERSION="${{ needs.release.outputs.version }}"
+          VERSION_TAG="${{ needs.release.outputs.version_tag }}"
+          TODAY=$(date -u +%Y-%m-%d)
 
-            - name: Generate marketplace.json with checksums
-              run: |
-                  VERSION="${{ needs.release.outputs.version }}"
-                  VERSION_TAG="${{ needs.release.outputs.version_tag }}"
-                  TODAY=$(date -u +%Y-%m-%d)
+          # Extract checksums from checksums.txt
+          SHA_DARWIN_ARM64=$(grep "darwin_arm64" checksums.txt | awk '{print $1}')
+          SHA_LINUX_AMD64=$(grep "linux_amd64" checksums.txt | awk '{print $1}')
+          SHA_WINDOWS_AMD64=$(grep "windows_amd64" checksums.txt | awk '{print $1}')
 
-                  # Extract checksums from checksums.txt
-                  SHA_DARWIN_ARM64=$(grep "darwin_arm64" checksums.txt | awk '{print $1}')
-                  SHA_LINUX_AMD64=$(grep "linux_amd64" checksums.txt | awk '{print $1}')
-                  SHA_WINDOWS_AMD64=$(grep "windows_amd64" checksums.txt | awk '{print $1}')
-
-                  # Generate marketplace.json
-                  cat > marketplace.json << EOF
-                  {
-                    "\$schema": "https://anthropic.com/claude-code/marketplace.schema.json",
-                    "name": "claude-mnemonic",
-                    "version": "1.0.0",
-                    "description": "Persistent memory system for Claude Code - stores observations, session summaries, and user prompts with semantic search",
-                    "owner": {
-                      "name": "lukaszraczylo",
-                      "email": "[email protected]",
-                      "url": "https://github.com/lukaszraczylo"
-                    },
-                    "repository": "https://github.com/lukaszraczylo/claude-mnemonic",
-                    "plugins": [
-                      {
-                        "name": "claude-mnemonic",
-                        "description": "Persistent memory system for Claude Code - Go implementation with SQLite and ChromaDB vector search",
-                        "version": "${VERSION}",
-                        "author": {
-                          "name": "lukaszraczylo",
-                          "url": "https://github.com/lukaszraczylo"
+          # Generate marketplace.json
+          cat > marketplace.json << EOF
+          {
+            "\$schema": "https://anthropic.com/claude-code/marketplace.schema.json",
+            "name": "claude-mnemonic",
+            "version": "1.0.0",
+            "description": "Persistent memory system for Claude Code - stores observations, session summaries, and user prompts with semantic search",
+            "owner": {
+              "name": "lukaszraczylo",
+              "email": "[email protected]",
+              "url": "https://github.com/lukaszraczylo"
+            },
+            "repository": "https://github.com/lukaszraczylo/claude-mnemonic",
+            "plugins": [
+              {
+                "name": "claude-mnemonic",
+                "description": "Persistent memory system for Claude Code - Go implementation with SQLite and ChromaDB vector search",
+                "version": "${VERSION}",
+                "author": {
+                  "name": "lukaszraczylo",
+                  "url": "https://github.com/lukaszraczylo"
+                },
+                "category": "productivity",
+                "tags": ["memory", "persistence", "search", "context"],
+                "license": "MIT",
+                "homepage": "https://github.com/lukaszraczylo/claude-mnemonic",
+                "releases": {
+                  "latest": "${VERSION}",
+                  "versions": {
+                    "${VERSION}": {
+                      "releaseDate": "${TODAY}",
+                      "downloads": {
+                        "darwin-arm64": {
+                          "url": "https://github.com/lukaszraczylo/claude-mnemonic/releases/download/${VERSION_TAG}/claude-mnemonic_${VERSION}_darwin_arm64.tar.gz",
+                          "format": "tar.gz",
+                          "sha256": "${SHA_DARWIN_ARM64}"
                         },
-                        "category": "productivity",
-                        "tags": ["memory", "persistence", "search", "context"],
-                        "license": "MIT",
-                        "homepage": "https://github.com/lukaszraczylo/claude-mnemonic",
-                        "releases": {
-                          "latest": "${VERSION}",
-                          "versions": {
-                            "${VERSION}": {
-                              "releaseDate": "${TODAY}",
-                              "downloads": {
-                                "darwin-arm64": {
-                                  "url": "https://github.com/lukaszraczylo/claude-mnemonic/releases/download/${VERSION_TAG}/claude-mnemonic_${VERSION}_darwin_arm64.tar.gz",
-                                  "format": "tar.gz",
-                                  "sha256": "${SHA_DARWIN_ARM64}"
-                                },
-                                "linux-amd64": {
-                                  "url": "https://github.com/lukaszraczylo/claude-mnemonic/releases/download/${VERSION_TAG}/claude-mnemonic_${VERSION}_linux_amd64.tar.gz",
-                                  "format": "tar.gz",
-                                  "sha256": "${SHA_LINUX_AMD64}"
-                                },
-                                "windows-amd64": {
-                                  "url": "https://github.com/lukaszraczylo/claude-mnemonic/releases/download/${VERSION_TAG}/claude-mnemonic_${VERSION}_windows_amd64.zip",
-                                  "format": "zip",
-                                  "sha256": "${SHA_WINDOWS_AMD64}"
-                                }
-                              }
-                            }
-                          }
+                        "linux-amd64": {
+                          "url": "https://github.com/lukaszraczylo/claude-mnemonic/releases/download/${VERSION_TAG}/claude-mnemonic_${VERSION}_linux_amd64.tar.gz",
+                          "format": "tar.gz",
+                          "sha256": "${SHA_LINUX_AMD64}"
+                        },
+                        "windows-amd64": {
+                          "url": "https://github.com/lukaszraczylo/claude-mnemonic/releases/download/${VERSION_TAG}/claude-mnemonic_${VERSION}_windows_amd64.zip",
+                          "format": "zip",
+                          "sha256": "${SHA_WINDOWS_AMD64}"
                         }
                       }
-                    ]
+                    }
                   }
-                  EOF
+                }
+              }
+            ]
+          }
+          EOF
 
-                  echo "Generated marketplace.json:"
-                  cat marketplace.json
+          echo "Generated marketplace.json:"
+          cat marketplace.json
 
-            - name: Commit and push
-              run: |
-                  git config user.name "github-actions[bot]"
-                  git config user.email "github-actions[bot]@users.noreply.github.com"
-                  git add marketplace.json
-                  git diff --staged --quiet || git commit -m "chore: update marketplace for ${{ needs.release.outputs.version_tag }}"
-                  git push
+      - name: Commit and push
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add marketplace.json
+          git diff --staged --quiet || git commit -m "chore: update marketplace for ${{ needs.release.outputs.version_tag }}"
+          git push

.gitignore

@@ -83,10 +83,3 @@ logs/
 dist/
 docs/dist
 .claude-plugin
-
-# Auto-generated plugin configs (generated by scripts/generate-plugin-config.sh)
-.claude-plugin/
-
-# Non-template plugin configs (keep only .tpl files)
-plugin/.claude-plugin/plugin.json
-plugin/.claude-plugin/marketplace.json

.golangci.yml

@@ -1,35 +0,0 @@
-linters-settings:
-  govet:
-    enable:
-      - fieldalignment
-  errcheck:
-    # Ignore error checks in test files for common test helpers
-    exclude-functions:
-      - (io.Closer).Close
-      - (*encoding/json.Encoder).Encode
-      - (io.Writer).Write
-
-linters:
-  enable:
-    - errcheck
-    - gosec
-    - govet
-    - gofmt
-    - staticcheck
-    - unused
-    - ineffassign
-    - typecheck
-
-issues:
-  exclude-dirs:
-    - vendor
-  # Exclude some linters from running on test files
-  exclude-rules:
-    - path: _test\.go
-      linters:
-        - errcheck
-        - gosec
-
-run:
-  timeout: 5m
-  tests: true

Makefile

@@ -146,8 +146,8 @@ install: build stop-worker
 	@# Copy slash commands if they exist
 	@if [ -d "$(PLUGIN_DIR)/commands" ]; then cp -r $(PLUGIN_DIR)/commands/* $(HOME)/.claude/plugins/marketplaces/claude-mnemonic/commands/ 2>/dev/null || true; fi
 	@# Update plugin.json and marketplace.json with current version to prevent stale version directories
-	@sed 's/{{ .Version }}/$(VERSION)/g; s/{{.Version}}/$(VERSION)/g' $(PLUGIN_DIR)/.claude-plugin/plugin.json.tpl > $(HOME)/.claude/plugins/marketplaces/claude-mnemonic/.claude-plugin/plugin.json
-	@sed 's/{{ .Version }}/$(VERSION)/g; s/{{.Version}}/$(VERSION)/g' $(PLUGIN_DIR)/.claude-plugin/marketplace.json.tpl > $(HOME)/.claude/plugins/marketplaces/claude-mnemonic/.claude-plugin/marketplace.json
+	@sed 's/"version": "[^"]*"/"version": "$(VERSION)"/g' $(PLUGIN_DIR)/.claude-plugin/plugin.json > $(HOME)/.claude/plugins/marketplaces/claude-mnemonic/.claude-plugin/plugin.json
+	@sed 's/"version": "[^"]*"/"version": "$(VERSION)"/g' $(PLUGIN_DIR)/.claude-plugin/marketplace.json > $(HOME)/.claude/plugins/marketplaces/claude-mnemonic/.claude-plugin/marketplace.json
 	@echo "Registering plugin with Claude Code..."
 	@./scripts/register-plugin.sh "$(VERSION)"
 	@$(MAKE) start-worker

README.md

@@ -12,21 +12,7 @@ Claude Code forgets everything when your session ends. Claude Mnemonic fixes tha
 
 It captures what Claude learns during your coding sessions - bug fixes, architecture decisions, patterns that work - and brings that knowledge back in future conversations. No more re-explaining your codebase.
 
-![Claude Mnemonic Dashboard](docs/public/claude-mnemonic.jpg)
-
-## What's New in v0.7
-
-- **Two-Stage Retrieval** - Cross-encoder reranking for dramatically improved search relevance
-- **Knowledge Graph** - Automatic relationship detection between observations with visual graph in dashboard
-  ![Knowledge Graph](docs/public/observation-relation-graph.jpg)
-- **Pattern Detection** - Identifies recurring patterns across sessions and projects
-- **Importance Scoring** - Time decay and voting system to surface the most valuable memories
-- **Query Expansion** - Reformulates searches to find semantically related content
-- **Conflict Detection** - Identifies and resolves contradictory observations
-- **Observation Lifecycle** - Memories can be superseded when better information arrives
-
-<details>
-<summary>Previous: v0.6</summary>
+## What's New in v0.6
 
 - **Auto-Updates** - Automatically stays up-to-date with the latest version
 - **Slash Command: `/restart`** - Restart the worker directly from Claude Code
@@ -34,7 +20,6 @@ It captures what Claude learns during your coding sessions - bug fixes, architec
 - **Async Queue Processing** - Non-blocking observation capture for faster sessions
 - **Smarter Storage** - Filters out system/agent summaries to keep knowledge relevant
 - **Improved Reliability** - Better handling of connectivity issues and dead connections
-</details>
 
 ## Requirements
 
@@ -125,39 +110,16 @@ Config file: `~/.claude-mnemonic/settings.json`
 {
   "CLAUDE_MNEMONIC_WORKER_PORT": 37777,
   "CLAUDE_MNEMONIC_CONTEXT_OBSERVATIONS": 100,
-  "CLAUDE_MNEMONIC_CONTEXT_FULL_COUNT": 25,
-  "CLAUDE_MNEMONIC_RERANKING_ENABLED": true
+  "CLAUDE_MNEMONIC_CONTEXT_FULL_COUNT": 25
 }
 ```
 
-### Core Settings
-
 | Variable | Default | What it does |
 |----------|---------|--------------|
 | `WORKER_PORT` | `37777` | Dashboard & API port |
 | `CONTEXT_OBSERVATIONS` | `100` | Max memories per session |
-| `CONTEXT_FULL_COUNT` | `25` | Full detail memories (rest are condensed) |
+| `CONTEXT_FULL_COUNT` | `25` | Full detail memories (rest are condensed to title only) |
 | `CONTEXT_SESSION_COUNT` | `10` | Recent sessions to reference |
-| `CONTEXT_RELEVANCE_THRESHOLD` | `0.3` | Minimum similarity score (0.0-1.0) for inclusion |
-| `CONTEXT_MAX_PROMPT_RESULTS` | `10` | Max results per prompt search |
-
-### Reranking Settings (Two-Stage Retrieval)
-
-| Variable | Default | What it does |
-|----------|---------|--------------|
-| `RERANKING_ENABLED` | `true` | Enable cross-encoder reranking |
-| `RERANKING_CANDIDATES` | `100` | Candidates to retrieve before reranking |
-| `RERANKING_RESULTS` | `10` | Final results after reranking |
-| `RERANKING_ALPHA` | `0.7` | Score blend: alpha×rerank + (1-alpha)×original |
-| `RERANKING_PURE_MODE` | `false` | Use pure cross-encoder scores only |
-
-### Embedding Settings
-
-| Variable | Default | What it does |
-|----------|---------|--------------|
-| `EMBEDDING_MODEL` | `bge-v1.5` | Embedding model for semantic search |
-
-All variables are prefixed with `CLAUDE_MNEMONIC_` in the config file.
 
 ## Project vs Global scope
 
@@ -240,11 +202,10 @@ curl -sSL https://raw.githubusercontent.com/lukaszraczylo/claude-mnemonic/main/s
 
 - **SQLite + FTS5** - Full-text search for exact matches
 - **sqlite-vec** - Vector database embedded in SQLite
-- **Two-Stage Retrieval** - Bi-encoder (embedding) + cross-encoder (reranking) for high accuracy
-- **Local Models** - all-MiniLM-L6-v2 for embeddings, BGE reranker for relevance scoring
+- **all-MiniLM-L6-v2** - Local embedding model (384 dimensions) via ONNX Runtime
 - **Go** - Single binary, no external dependencies
 
-Everything runs locally. No Python. No external vector database. No API calls.
+Everything runs locally. No Python. No external vector database. No API calls for embeddings.
 
 ## Platform support
 

cmd/hooks/session-start/main.go

@@ -2,7 +2,9 @@
 package main
 
 import (
+	"encoding/json"
 	"fmt"
+	"io"
 	"net/url"
 	"os"
 	"strings"
@@ -12,41 +14,71 @@ import (
 
 // Input is the hook input from Claude Code.
 type Input struct {
-	hooks.BaseInput
-	Source string `json:"source"` // "startup", "resume", "clear", "compact"
+	SessionID      string `json:"session_id"`
+	CWD            string `json:"cwd"`
+	PermissionMode string `json:"permission_mode"`
+	HookEventName  string `json:"hook_event_name"`
+	Source         string `json:"source"` // "startup", "resume", "clear", "compact"
 }
 
 // Observation represents an observation from the API.
 type Observation struct {
+	ID        int64    `json:"id"`
 	Type      string   `json:"type"`
 	Title     string   `json:"title"`
 	Subtitle  string   `json:"subtitle"`
 	Narrative string   `json:"narrative"`
 	Facts     []string `json:"facts"`
-	ID        int64    `json:"id"`
 }
 
 func main() {
-	hooks.RunHook("SessionStart", handleSessionStart)
-}
+	// Skip if this is an internal call (from SDK processor)
+	if os.Getenv("CLAUDE_MNEMONIC_INTERNAL") == "1" {
+		hooks.WriteResponse("SessionStart", true)
+		return
+	}
+
+	// Read input from stdin
+	inputData, err := io.ReadAll(os.Stdin)
+	if err != nil {
+		hooks.WriteError("SessionStart", err)
+		os.Exit(1)
+	}
+
+	var input Input
+	if err := json.Unmarshal(inputData, &input); err != nil {
+		hooks.WriteError("SessionStart", err)
+		os.Exit(1)
+	}
+
+	// Ensure worker is running
+	port, err := hooks.EnsureWorkerRunning()
+	if err != nil {
+		hooks.WriteError("SessionStart", err)
+		os.Exit(1)
+	}
+
+	// Generate unique project ID from CWD (dirname_hash format)
+	project := hooks.ProjectIDWithName(input.CWD)
 
-func handleSessionStart(ctx *hooks.HookContext, input *Input) (string, error) {
 	// Fetch observations for context injection
 	endpoint := fmt.Sprintf("/api/context/inject?project=%s&cwd=%s",
-		url.QueryEscape(ctx.Project),
-		url.QueryEscape(ctx.CWD))
+		url.QueryEscape(project),
+		url.QueryEscape(input.CWD))
 
-	result, err := hooks.GET(ctx.Port, endpoint)
+	result, err := hooks.GET(port, endpoint)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "[claude-mnemonic] Warning: context fetch failed: %v\n", err)
-		return "", nil
+		hooks.WriteResponse("SessionStart", true)
+		return
 	}
 
 	// Parse observations from response
 	obsData, ok := result["observations"].([]interface{})
 	if !ok || len(obsData) == 0 {
 		// No observations - just continue normally
-		return "", nil
+		hooks.WriteResponse("SessionStart", true)
+		return
 	}
 
 	// Get full_count from response (how many observations get full detail)
@@ -104,7 +136,17 @@ func handleSessionStart(ctx *hooks.HookContext, input *Input) (string, error) {
 	}
 
 	contextBuilder += "</claude-mnemonic-context>\n"
-	return contextBuilder, nil
+
+	// Output context as JSON with additionalContext field
+	response := map[string]interface{}{
+		"continue": true,
+		"hookSpecificOutput": map[string]interface{}{
+			"hookEventName":     "SessionStart",
+			"additionalContext": contextBuilder,
+		},
+	}
+	_ = json.NewEncoder(os.Stdout).Encode(response)
+	os.Exit(0)
 }
 
 func getString(m map[string]interface{}, key string) string {

cmd/hooks/statusline/main.go

@@ -5,6 +5,7 @@ package main
 import (
 	"encoding/json"
 	"fmt"
+	"io"
 	"net/http"
 	"net/url"
 	"os"
@@ -43,21 +44,21 @@ type StatusInput struct {
 
 // WorkerStats is the response from the worker's /api/stats endpoint.
 type WorkerStats struct {
-	Uptime    string `json:"uptime"`
-	Project   string `json:"project,omitempty"`
-	Retrieval struct {
+	Uptime              string `json:"uptime"`
+	ActiveSessions      int    `json:"activeSessions"`
+	QueueDepth          int    `json:"queueDepth"`
+	IsProcessing        bool   `json:"isProcessing"`
+	ConnectedClients    int    `json:"connectedClients"`
+	SessionsToday       int    `json:"sessionsToday"`
+	Ready               bool   `json:"ready"`
+	Project             string `json:"project,omitempty"`
+	ProjectObservations int    `json:"projectObservations,omitempty"`
+	Retrieval           struct {
 		TotalRequests      int64 `json:"TotalRequests"`
 		ObservationsServed int64 `json:"ObservationsServed"`
 		SearchRequests     int64 `json:"SearchRequests"`
 		ContextInjections  int64 `json:"ContextInjections"`
 	} `json:"retrieval"`
-	ActiveSessions      int  `json:"activeSessions"`
-	QueueDepth          int  `json:"queueDepth"`
-	ConnectedClients    int  `json:"connectedClients"`
-	SessionsToday       int  `json:"sessionsToday"`
-	ProjectObservations int  `json:"projectObservations,omitempty"`
-	IsProcessing        bool `json:"isProcessing"`
-	Ready               bool `json:"ready"`
 }
 
 // ANSI color codes
@@ -71,13 +72,18 @@ const (
 )
 
 func main() {
-	hooks.RunStatuslineHook(handleStatusline)
-}
+	// Read input from stdin
+	inputData, err := io.ReadAll(os.Stdin)
+	if err != nil {
+		// On error, output minimal status
+		fmt.Println(formatOffline())
+		return
+	}
 
-func handleStatusline(input *StatusInput, port int) string {
-	// Handle error cases (nil input)
-	if input == nil {
-		return formatOffline()
+	var input StatusInput
+	if err := json.Unmarshal(inputData, &input); err != nil {
+		fmt.Println(formatOffline())
+		return
 	}
 
 	// Determine project directory
@@ -96,14 +102,16 @@ func handleStatusline(input *StatusInput, port int) string {
 	}
 
 	// Get worker stats
-	stats := getWorkerStats(port, project)
+	stats := getWorkerStats(project)
 
-	// Format and return statusline
-	return formatStatusLine(stats, *input)
+	// Format and output statusline
+	fmt.Println(formatStatusLine(stats, input))
 }
 
 // getWorkerStats fetches stats from the worker service.
-func getWorkerStats(port int, project string) *WorkerStats {
+func getWorkerStats(project string) *WorkerStats {
+	port := hooks.GetWorkerPort()
+
 	// Build URL with optional project parameter
 	endpoint := fmt.Sprintf("http://127.0.0.1:%d/api/stats", port)
 	if project != "" {
@@ -179,45 +187,54 @@ func formatDefault(stats *WorkerStats, useColors bool) string {
 	}
 
 	// Build status parts with clear labels
-	parts := []string{
-		prefix,
-		indicator,
-	}
+	parts := []string{}
 
-	// Add retrieval stats if available
-	if stats.Retrieval.ObservationsServed > 0 {
-		parts = append(parts, fmt.Sprintf("served:%d", stats.Retrieval.ObservationsServed))
-	}
+	// Total memories served to Claude this session
+	parts = append(parts, fmt.Sprintf("served:%d", stats.Retrieval.ObservationsServed))
+
+	// Context injections (memories auto-loaded at session start)
 	if stats.Retrieval.ContextInjections > 0 {
 		parts = append(parts, fmt.Sprintf("injected:%d", stats.Retrieval.ContextInjections))
 	}
+
+	// Semantic searches performed
 	if stats.Retrieval.SearchRequests > 0 {
 		parts = append(parts, fmt.Sprintf("searches:%d", stats.Retrieval.SearchRequests))
 	}
 
-	// Add project-specific observation count if available
+	// Project-specific memory count
 	if stats.ProjectObservations > 0 {
-		parts = append(parts, fmt.Sprintf("project:%d memories", stats.ProjectObservations))
+		if useColors {
+			parts = append(parts, fmt.Sprintf("%sproject:%d memories%s", colorYellow, stats.ProjectObservations, reset))
+		} else {
+			parts = append(parts, fmt.Sprintf("project:%d memories", stats.ProjectObservations))
+		}
 	}
 
-	// Join with separators
-	result := parts[0] + " " + parts[1]
-	if len(parts) > 2 {
-		for i := 2; i < len(parts); i++ {
-			if useColors {
-				result += colorGray + " | " + reset + parts[i]
-			} else {
-				result += " | " + parts[i]
-			}
+	// Processing indicator
+	if stats.IsProcessing || stats.QueueDepth > 0 {
+		if useColors {
+			parts = append(parts, colorYellow+"processing..."+colorReset)
+		} else {
+			parts = append(parts, "processing...")
+		}
+	}
+
+	result := prefix + " " + indicator
+	for i, part := range parts {
+		if i == 0 {
+			result += " " + part
+		} else {
+			result += " | " + part
 		}
 	}
 
 	return result
 }
 
-// formatCompact returns a compact status line format.
+// formatCompact returns a compact status line.
 func formatCompact(stats *WorkerStats, useColors bool) string {
-	// [m] ● 42/5/3
+	// [m] ● 42/5/3 (28)
 	var prefix, indicator string
 	if useColors {
 		prefix = colorCyan + "[m]" + colorReset
@@ -227,16 +244,31 @@ func formatCompact(stats *WorkerStats, useColors bool) string {
 		indicator = "●"
 	}
 
-	return fmt.Sprintf("%s %s %d/%d/%d",
+	result := fmt.Sprintf("%s %s %d/%d/%d",
 		prefix, indicator,
 		stats.Retrieval.ObservationsServed,
 		stats.Retrieval.ContextInjections,
-		stats.Retrieval.SearchRequests)
+		stats.Retrieval.SearchRequests,
+	)
+
+	if stats.ProjectObservations > 0 {
+		result += fmt.Sprintf(" (%d)", stats.ProjectObservations)
+	}
+
+	if stats.IsProcessing || stats.QueueDepth > 0 {
+		if useColors {
+			result += " " + colorYellow + "⚙" + colorReset
+		} else {
+			result += " ⚙"
+		}
+	}
+
+	return result
 }
 
-// formatMinimal returns a minimal status line format.
+// formatMinimal returns a minimal status line.
 func formatMinimal(stats *WorkerStats, useColors bool) string {
-	// ● 28 memories
+	// ● 42 obs
 	var indicator string
 	if useColors {
 		indicator = colorGreen + "●" + colorReset
@@ -244,31 +276,32 @@ func formatMinimal(stats *WorkerStats, useColors bool) string {
 		indicator = "●"
 	}
 
+	result := fmt.Sprintf("%s %d", indicator, stats.Retrieval.ObservationsServed)
+
 	if stats.ProjectObservations > 0 {
-		return fmt.Sprintf("%s %d memories", indicator, stats.ProjectObservations)
+		result += fmt.Sprintf("/%d", stats.ProjectObservations)
 	}
 
-	return fmt.Sprintf("%s mnemonic ready", indicator)
+	return result
 }
 
-// formatOffline returns status for when worker is offline.
+// formatOffline returns the offline status.
 func formatOffline() string {
-	useColors := os.Getenv("NO_COLOR") == "" && os.Getenv("TERM") != "dumb"
-	return formatOfflineColored(useColors)
+	return formatOfflineColored(true)
 }
 
-// formatOfflineColored returns colored offline status.
+// formatOfflineColored returns the offline status with optional colors.
 func formatOfflineColored(useColors bool) string {
 	if useColors {
-		return colorGray + "[mnemonic]" + colorReset + " " + colorGray + "○" + colorReset + " offline"
+		return colorCyan + "[mnemonic]" + colorReset + " " + colorGray + "○" + colorReset
 	}
-	return "[mnemonic] ○ offline"
+	return "[mnemonic] ○"
 }
 
-// formatStartingColored returns colored starting status.
+// formatStartingColored returns the starting status with optional colors.
 func formatStartingColored(useColors bool) string {
 	if useColors {
-		return colorYellow + "[mnemonic]" + colorReset + " " + colorYellow + "○" + colorReset + " starting..."
+		return colorCyan + "[mnemonic]" + colorReset + " " + colorYellow + "◐" + colorReset + " starting"
 	}
-	return "[mnemonic] ○ starting..."
+	return "[mnemonic] ◐ starting"
 }

cmd/hooks/stop/main.go

@@ -14,17 +14,17 @@ import (
 // Input is the hook input from Claude Code.
 type Input struct {
 	hooks.BaseInput
-	TranscriptPath string `json:"transcript_path"`
 	StopHookActive bool   `json:"stop_hook_active"`
+	TranscriptPath string `json:"transcript_path"`
 }
 
 // TranscriptMessage represents a message in the transcript JSONL file.
 type TranscriptMessage struct {
+	Type    string `json:"type"`
 	Message struct {
-		Content any    `json:"content"`
 		Role    string `json:"role"`
+		Content any    `json:"content"` // Can be string or array
 	} `json:"message"`
-	Type string `json:"type"` // Can be string or array
 }
 
 // extractTextContent extracts text content from message content (handles both string and array formats).

cmd/hooks/user-prompt/main.go

@@ -2,7 +2,9 @@
 package main
 
 import (
+	"encoding/json"
 	"fmt"
+	"io"
 	"net/url"
 	"os"
 
@@ -11,28 +13,60 @@ import (
 
 // Input is the hook input from Claude Code.
 type Input struct {
-	hooks.BaseInput
-	Prompt string `json:"prompt"`
+	SessionID      string `json:"session_id"`
+	CWD            string `json:"cwd"`
+	PermissionMode string `json:"permission_mode"`
+	HookEventName  string `json:"hook_event_name"`
+	Prompt         string `json:"prompt"`
 }
 
 func main() {
-	hooks.RunHook("UserPromptSubmit", handleUserPrompt)
-}
+	// Skip if this is an internal call (from SDK processor)
+	if os.Getenv("CLAUDE_MNEMONIC_INTERNAL") == "1" {
+		hooks.WriteResponse("UserPromptSubmit", true)
+		return
+	}
+
+	// Read input from stdin
+	inputData, err := io.ReadAll(os.Stdin)
+	if err != nil {
+		hooks.WriteError("UserPromptSubmit", err)
+		os.Exit(1)
+	}
+
+	var input Input
+	if err := json.Unmarshal(inputData, &input); err != nil {
+		hooks.WriteError("UserPromptSubmit", err)
+		os.Exit(1)
+	}
+
+	// Ensure worker is running
+	port, err := hooks.EnsureWorkerRunning()
+	if err != nil {
+		hooks.WriteError("UserPromptSubmit", err)
+		os.Exit(1)
+	}
+
+	// Generate unique project ID from CWD
+	project := hooks.ProjectIDWithName(input.CWD)
 
-func handleUserPrompt(ctx *hooks.HookContext, input *Input) (string, error) {
 	// Search for relevant observations based on the prompt
 	searchURL := fmt.Sprintf("/api/context/search?project=%s&query=%s&cwd=%s",
-		url.QueryEscape(ctx.Project),
+		url.QueryEscape(project),
 		url.QueryEscape(input.Prompt),
-		url.QueryEscape(ctx.CWD))
+		url.QueryEscape(input.CWD))
 
 	var contextToInject string
 	var observationCount int
 
-	searchResult, _ := hooks.GET(ctx.Port, searchURL)
+	searchResult, _ := hooks.GET(port, searchURL)
 	if observations, ok := searchResult["observations"].([]interface{}); ok && len(observations) > 0 {
-		// Results are already filtered by relevance threshold and capped by max_results
-		// from the server-side config (ContextRelevanceThreshold, ContextMaxPromptResults)
+		// Limit to top 5 most relevant observations
+		maxObs := 5
+		if len(observations) < maxObs {
+			maxObs = len(observations)
+		}
+		observations = observations[:maxObs]
 		observationCount = len(observations)
 
 		// Build context from search results
@@ -74,56 +108,59 @@ func handleUserPrompt(ctx *hooks.HookContext, input *Input) (string, error) {
 		}
 
 		contextBuilder += "</relevant-memory>\n"
+
 		contextToInject = contextBuilder
 	}
 
 	// Initialize session with matched observations count
-	result, err := hooks.POST(ctx.Port, "/api/sessions/init", map[string]interface{}{
-		"claudeSessionId":     ctx.SessionID,
-		"project":             ctx.Project,
+	result, err := hooks.POST(port, "/api/sessions/init", map[string]interface{}{
+		"claudeSessionId":     input.SessionID,
+		"project":             project,
 		"prompt":              input.Prompt,
 		"matchedObservations": observationCount,
 	})
 	if err != nil {
-		return "", err
+		hooks.WriteError("UserPromptSubmit", err)
+		os.Exit(1)
 	}
 
 	// Check if skipped due to privacy
 	if skipped, ok := result["skipped"].(bool); ok && skipped {
 		fmt.Fprintf(os.Stderr, "[user-prompt] Session skipped (private)\n")
-		return "", nil
+		hooks.WriteResponse("UserPromptSubmit", true)
+		return
 	}
 
-	// Safely extract session ID and prompt number with type checking
-	sessionDbIdRaw, ok := result["sessionDbId"].(float64)
-	if !ok {
-		return "", fmt.Errorf("invalid or missing sessionDbId in response")
-	}
-	sessionID := int64(sessionDbIdRaw)
-
-	promptNumberRaw, ok := result["promptNumber"].(float64)
-	if !ok {
-		return "", fmt.Errorf("invalid or missing promptNumber in response")
-	}
-	promptNumber := int(promptNumberRaw)
+	sessionID := int64(result["sessionDbId"].(float64))
+	promptNumber := int(result["promptNumber"].(float64))
 
 	fmt.Fprintf(os.Stderr, "[user-prompt] Session %d, prompt #%d\n", sessionID, promptNumber)
 
 	// Start SDK agent
-	_, err = hooks.POST(ctx.Port, fmt.Sprintf("/sessions/%d/init", sessionID), map[string]interface{}{
+	_, err = hooks.POST(port, fmt.Sprintf("/sessions/%d/init", sessionID), map[string]interface{}{
 		"userPrompt":   input.Prompt,
 		"promptNumber": promptNumber,
 	})
 	if err != nil {
-		return "", err
+		hooks.WriteError("UserPromptSubmit", err)
+		os.Exit(1)
 	}
 
-	// Return context if we found relevant observations
+	// Output results - stdout with exit 0 adds context to Claude's prompt
 	if observationCount > 0 {
 		// Show match count to user via stderr
 		fmt.Fprintf(os.Stderr, "[claude-mnemonic] Found %d relevant memories for this prompt\n", observationCount)
-		return contextToInject, nil
+		// Output context as JSON with additionalContext field
+		response := map[string]interface{}{
+			"continue": true,
+			"hookSpecificOutput": map[string]interface{}{
+				"hookEventName":     "UserPromptSubmit",
+				"additionalContext": contextToInject,
+			},
+		}
+		_ = json.NewEncoder(os.Stdout).Encode(response)
+		os.Exit(0)
+	} else {
+		hooks.WriteResponse("UserPromptSubmit", true)
 	}
-
-	return "", nil
 }

cmd/mcp/main.go

@@ -10,14 +10,12 @@ import (
 	"time"
 
 	"github.com/lukaszraczylo/claude-mnemonic/internal/config"
-	"github.com/lukaszraczylo/claude-mnemonic/internal/db/gorm"
+	"github.com/lukaszraczylo/claude-mnemonic/internal/db/sqlite"
 	"github.com/lukaszraczylo/claude-mnemonic/internal/embedding"
 	"github.com/lukaszraczylo/claude-mnemonic/internal/mcp"
-	"github.com/lukaszraczylo/claude-mnemonic/internal/scoring"
 	"github.com/lukaszraczylo/claude-mnemonic/internal/search"
 	"github.com/lukaszraczylo/claude-mnemonic/internal/vector/sqlitevec"
 	"github.com/lukaszraczylo/claude-mnemonic/internal/watcher"
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
 	"github.com/rs/zerolog"
 	"github.com/rs/zerolog/log"
 )
@@ -73,25 +71,22 @@ func main() {
 		cancel()
 	}()
 
-	// Initialize database store (migrations run automatically)
-	storeCfg := gorm.Config{
+	// Initialize SQLite store (migrations run automatically)
+	storeCfg := sqlite.StoreConfig{
 		Path:     dbPath,
 		MaxConns: cfg.MaxConns,
-		// WALMode is enabled automatically by GORM
+		WALMode:  true,
 	}
-	store, err := gorm.NewStore(storeCfg)
+	store, err := sqlite.NewStore(storeCfg)
 	if err != nil {
-		log.Fatal().Err(err).Msg("Failed to initialize database store")
+		log.Fatal().Err(err).Msg("Failed to initialize SQLite store")
 	}
 	defer store.Close()
 
 	// Initialize stores
-	observationStore := gorm.NewObservationStore(store, nil, nil, nil)
-	summaryStore := gorm.NewSummaryStore(store)
-	promptStore := gorm.NewPromptStore(store, nil)
-	patternStore := gorm.NewPatternStore(store)
-	relationStore := gorm.NewRelationStore(store)
-	sessionStore := gorm.NewSessionStore(store)
+	observationStore := sqlite.NewObservationStore(store)
+	summaryStore := sqlite.NewSummaryStore(store)
+	promptStore := sqlite.NewPromptStore(store)
 
 	// Initialize embedding service and vector client
 	var vectorClient *sqlitevec.Client
@@ -100,7 +95,7 @@ func main() {
 		log.Warn().Err(err).Msg("Embedding service unavailable, vector search disabled")
 	} else {
 		defer embedSvc.Close()
-		vectorClient, err = sqlitevec.NewClient(sqlitevec.Config{DB: store.GetRawDB()}, embedSvc)
+		vectorClient, err = sqlitevec.NewClient(sqlitevec.Config{DB: store.DB()}, embedSvc)
 		if err != nil {
 			log.Warn().Err(err).Msg("Vector client unavailable, vector search disabled")
 		} else {
@@ -108,33 +103,14 @@ func main() {
 		}
 	}
 
-	// Initialize scoring components
-	scoreConfig := models.DefaultScoringConfig()
-	scoreCalculator := scoring.NewCalculator(scoreConfig)
-	recalculator := scoring.NewRecalculator(observationStore, scoreCalculator, log.Logger)
-	go recalculator.Start(ctx)
-	defer recalculator.Stop()
-
 	// Initialize search manager
 	searchMgr := search.NewManager(observationStore, summaryStore, promptStore, vectorClient)
 
 	// Start file watchers
 	startWatchers(ctx, dbPath)
 
-	// Create and run MCP server with all dependencies
-	// Note: maintenanceService is nil because it runs in the worker process
-	server := mcp.NewServer(
-		searchMgr,
-		Version,
-		observationStore,
-		patternStore,
-		relationStore,
-		sessionStore,
-		vectorClient,
-		scoreCalculator,
-		recalculator,
-		nil, // maintenanceService - handled by worker
-	)
+	// Create and run MCP server
+	server := mcp.NewServer(searchMgr, Version)
 	log.Info().Str("project", *project).Str("version", Version).Msg("Starting MCP server")
 
 	if err := server.Run(ctx); err != nil {

docs/src/App.vue

@@ -29,21 +29,6 @@
       subtitle="Stop re-explaining your codebase. Claude Mnemonic captures bug fixes, architecture decisions, and coding patterns - then brings them back exactly when you need them."
     />
 
-    <!-- Dashboard Preview -->
-    <section class="py-12 lg:py-16 px-4 sm:px-6 relative">
-      <div class="max-w-6xl mx-auto">
-        <div class="relative rounded-xl overflow-hidden border border-slate-700/50 shadow-2xl shadow-amber-500/5">
-          <div class="absolute inset-0 bg-gradient-to-t from-slate-950 via-transparent to-transparent pointer-events-none z-10"></div>
-          <img
-            src="/claude-mnemonic.jpg"
-            alt="Claude Mnemonic Dashboard"
-            class="w-full h-auto"
-          />
-        </div>
-        <p class="text-center text-slate-500 text-sm mt-4">The dashboard at localhost:37777 - browse, search, and manage your memories. View graph stats, vector metrics, storage savings, and performance analytics.</p>
-      </div>
-    </section>
-
     <!-- Problem Section -->
     <section class="py-20 lg:py-28 px-4 sm:px-6 relative">
       <div class="max-w-6xl mx-auto grid lg:grid-cols-2 gap-8 lg:gap-16 items-center">
@@ -100,21 +85,6 @@
       </div>
     </section>
 
-    <!-- Knowledge Graph Preview -->
-    <section class="py-16 lg:py-20 px-4 sm:px-6 relative">
-      <div class="max-w-5xl mx-auto">
-        <SectionHeader title="See how knowledge connects" subtitle="The knowledge graph reveals relationships between your memories automatically" />
-        <div class="relative rounded-xl overflow-hidden border border-slate-700/50 shadow-2xl shadow-purple-500/5">
-          <img
-            src="/observation-relation-graph.jpg"
-            alt="Knowledge Graph Visualization"
-            class="w-full h-auto"
-          />
-        </div>
-        <p class="text-center text-slate-500 text-sm mt-4">Click any observation to explore its relationships - see what causes what, what fixes what, and how concepts evolve</p>
-      </div>
-    </section>
-
     <!-- Before/After Section -->
     <section class="py-20 lg:py-28 px-4 sm:px-6">
       <div class="max-w-6xl mx-auto">
@@ -304,7 +274,7 @@
     <section class="py-20 lg:py-28 px-4 sm:px-6">
       <div class="max-w-6xl mx-auto">
         <SectionHeader title="Under the hood" subtitle="Built with simplicity and performance in mind" />
-        <div class="grid sm:grid-cols-2 lg:grid-cols-3 gap-4 sm:gap-6 text-center">
+        <div class="grid sm:grid-cols-2 lg:grid-cols-4 gap-4 sm:gap-6 text-center">
           <div class="glass rounded-2xl p-6 sm:p-8 hover:border-amber-500/30 transition-colors">
             <div class="text-3xl sm:text-4xl font-bold text-amber-500 mb-2">Go</div>
             <p class="text-slate-400 text-xs sm:text-sm">Single binary. Fast startup, low memory. Zero runtime dependencies.</p>
@@ -315,19 +285,11 @@
           </div>
           <div class="glass rounded-2xl p-6 sm:p-8 hover:border-amber-500/30 transition-colors">
             <div class="text-3xl sm:text-4xl font-bold text-amber-500 mb-2">sqlite-vec</div>
-            <p class="text-slate-400 text-xs sm:text-sm">Hybrid vector storage with LEANN-inspired selective embeddings. 60-80% storage reduction.</p>
+            <p class="text-slate-400 text-xs sm:text-sm">Embedded vector database. No external services required.</p>
           </div>
           <div class="glass rounded-2xl p-6 sm:p-8 hover:border-amber-500/30 transition-colors">
-            <div class="text-3xl sm:text-4xl font-bold text-amber-500 mb-2">BGE</div>
-            <p class="text-slate-400 text-xs sm:text-sm">Two-stage retrieval: bi-encoder embeddings + cross-encoder reranking for high accuracy.</p>
-          </div>
-          <div class="glass rounded-2xl p-6 sm:p-8 hover:border-amber-500/30 transition-colors">
-            <div class="text-3xl sm:text-4xl font-bold text-amber-500 mb-2">Tree-sitter</div>
-            <p class="text-slate-400 text-xs sm:text-sm">AST-aware code chunking respects function boundaries for Go, Python, and TypeScript.</p>
-          </div>
-          <div class="glass rounded-2xl p-6 sm:p-8 hover:border-amber-500/30 transition-colors">
-            <div class="text-3xl sm:text-4xl font-bold text-amber-500 mb-2">CSR Graph</div>
-            <p class="text-slate-400 text-xs sm:text-sm">Memory-efficient observation relationship graph with edge detection and hub identification.</p>
+            <div class="text-3xl sm:text-4xl font-bold text-amber-500 mb-2">MiniLM</div>
+            <p class="text-slate-400 text-xs sm:text-sm">Local embeddings via ONNX. "Fix auth" finds "JWT issue" automatically.</p>
           </div>
         </div>
       </div>
@@ -424,13 +386,10 @@ const activeTab = ref('macos')
 
 const features = [
   { icon: 'fas fa-brain', title: 'Learns as you work', description: 'Every bug fix, every architecture decision, every "aha moment" - captured automatically without breaking your flow.' },
-  { icon: 'fas fa-search', title: 'Two-stage retrieval', description: 'Cross-encoder reranking delivers highly relevant results. Finds what you need even with vague queries like "that auth thing".' },
-  { icon: 'fas fa-project-diagram', title: 'Graph-based search', description: 'LEANN Phase 2: Graph relationships between observations (file overlap, semantic similarity, temporal proximity) for smarter context retrieval.' },
-  { icon: 'fas fa-microchip', title: 'AST-aware chunking', description: 'Intelligent code splitting respects function boundaries. Go, Python, and TypeScript code is chunked at semantic boundaries, not arbitrary line counts.' },
-  { icon: 'fas fa-database', title: 'Hybrid vector storage', description: 'LEANN-inspired selective storage: frequently-accessed "hub" observations store embeddings, others recompute on-demand. 60-80% storage savings with <50ms latency.' },
   { icon: 'fas fa-folder-tree', title: 'Project-aware context', description: 'Your React knowledge stays in React projects. Your Go patterns stay in Go projects. No context pollution.' },
-  { icon: 'fas fa-chart-line', title: 'Smart scoring', description: 'Importance decay, pattern detection, and conflict resolution ensure the most valuable memories surface first.' },
-  { icon: 'fas fa-gauge-high', title: 'Auto-tuning', description: 'Dynamic hub threshold adjustment based on query performance. Automatically balances storage efficiency with search latency for your workload.' },
+  { icon: 'fas fa-globe', title: 'Shared best practices', description: 'Security patterns, performance tips, and universal learnings automatically available across all your projects.' },
+  { icon: 'fas fa-search', title: 'Finds what matters', description: 'Semantic search finds relevant memories even when you don\'t remember the exact words. "That auth thing" just works.' },
+  { icon: 'fas fa-chart-line', title: 'Live statusline', description: 'Real-time metrics right in Claude Code: memories served, searches performed, and project memory count at a glance.' },
   { icon: 'fas fa-lock', title: '100% private', description: 'Your code context never leaves your machine. No telemetry. No cloud sync. Your memories are yours.' },
 ]
 
@@ -456,12 +415,8 @@ const installCommands = {
 const configOptions = [
   { name: 'CLAUDE_MNEMONIC_WORKER_PORT', description: 'HTTP port for the worker service (default: 37777)', icon: 'fas fa-network-wired' },
   { name: 'CLAUDE_MNEMONIC_CONTEXT_OBSERVATIONS', description: 'Maximum observations injected per session (default: 100)', icon: 'fas fa-layer-group' },
-  { name: 'CLAUDE_MNEMONIC_RERANKING_ENABLED', description: 'Enable cross-encoder reranking for improved search relevance (default: true)', icon: 'fas fa-sort-amount-down' },
-  { name: 'CLAUDE_MNEMONIC_CONTEXT_RELEVANCE_THRESHOLD', description: 'Minimum similarity score for inclusion, 0.0-1.0 (default: 0.3)', icon: 'fas fa-filter' },
-  { name: 'CLAUDE_MNEMONIC_VECTOR_STORAGE_STRATEGY', description: 'Storage strategy: "hub" (default), "always", or "on_demand"', icon: 'fas fa-database' },
-  { name: 'CLAUDE_MNEMONIC_GRAPH_ENABLED', description: 'Enable graph-based search with observation relationships (default: true)', icon: 'fas fa-project-diagram' },
-  { name: 'CLAUDE_MNEMONIC_GRAPH_MAX_HOPS', description: 'Maximum graph traversal depth for search expansion (default: 2)', icon: 'fas fa-route' },
-  { name: 'CLAUDE_MNEMONIC_GRAPH_REBUILD_INTERVAL_MIN', description: 'How often to rebuild the observation graph in minutes (default: 60)', icon: 'fas fa-clock' },
+  { name: 'CLAUDE_MNEMONIC_CONTEXT_FULL_COUNT', description: 'Observations with full narrative detail, rest are condensed (default: 25)', icon: 'fas fa-expand' },
+  { name: 'CLAUDE_MNEMONIC_MODEL', description: 'Model for processing observations (default: haiku)', icon: 'fas fa-microchip' },
 ]
 
 const requiredDeps = [
@@ -472,11 +427,9 @@ const requiredDeps = [
 const faqs = [
   { question: 'Will it confuse Claude with wrong context?', answer: 'No. Mnemonic uses project isolation and semantic relevance scoring. Only memories from the current project (or global best practices) are injected, and only when they\'re actually relevant to your prompt.' },
   { question: 'What exactly gets saved?', answer: 'Bug fixes with context ("Fixed race condition by adding mutex"), architecture decisions ("Using repository pattern for data access"), conventions ("All API routes prefixed with /api/v1"), and learnings you want to preserve.' },
-  { question: 'How does hybrid vector storage work?', answer: 'LEANN-inspired selective storage: frequently-accessed "hub" observations (identified by access patterns and graph centrality) store embeddings. Infrequently-accessed observations recompute embeddings on-demand during search. This reduces storage by 60-80% with minimal latency impact (<50ms).' },
-  { question: 'Can I delete or edit memories?', answer: 'Yes. The web dashboard at localhost:37777 lets you browse, search, edit, and delete any memory. You can also view graph relationships, storage metrics, and performance analytics. You\'re always in control.' },
+  { question: 'Can I delete or edit memories?', answer: 'Yes. The web dashboard at localhost:37777 lets you browse, search, edit, and delete any memory. You\'re always in control.' },
   { question: 'Does it work with my existing Claude Code setup?', answer: 'Yes. Mnemonic installs as a Claude Code plugin with hooks. Your existing workflows, settings, and shortcuts remain unchanged.' },
   { question: 'What if I switch between projects frequently?', answer: 'That\'s the point. Each project has isolated memories. Switch from your Python ML project to your TypeScript app - context switches automatically.' },
-  { question: 'Is there a performance impact?', answer: 'Minimal. The Go worker is lightweight (typically under 30MB RAM). Hybrid storage and auto-tuning optimize for your workload. Context injection at session start takes milliseconds for most projects.' },
-  { question: 'What is AST-aware chunking?', answer: 'When processing code observations, Mnemonic uses Tree-sitter parsers to respect function and class boundaries instead of arbitrary line limits. Go, Python, and TypeScript code is chunked at semantic boundaries for better search accuracy.' },
+  { question: 'Is there a performance impact?', answer: 'Minimal. The Go worker is lightweight (typically under 30MB RAM). Context injection at session start takes milliseconds for most projects.' },
 ]
 </script>

go.mod

@@ -7,25 +7,18 @@ replace github.com/sugarme/tokenizer => github.com/clems4ever/tokenizer v0.0.0-2
 require (
 	github.com/asg017/sqlite-vec-go-bindings v0.1.6
 	github.com/fsnotify/fsnotify v1.9.0
-	github.com/go-chi/chi/v5 v5.2.5
-	github.com/go-gormigrate/gormigrate/v2 v2.1.5
+	github.com/go-chi/chi/v5 v5.2.3
 	github.com/goccy/go-json v0.10.5
-	github.com/mattn/go-sqlite3 v1.14.33
+	github.com/mattn/go-sqlite3 v1.14.32
 	github.com/rs/zerolog v1.34.0
-	github.com/smacker/go-tree-sitter v0.0.0-20240827094217-dd81d9e9be82
 	github.com/stretchr/testify v1.11.1
 	github.com/sugarme/tokenizer v0.3.0
 	github.com/yalue/onnxruntime_go v1.25.0
-	golang.org/x/sync v0.19.0
-	gorm.io/driver/sqlite v1.6.0
-	gorm.io/gorm v1.31.1
 )
 
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/emirpasic/gods v1.18.1 // indirect
-	github.com/jinzhu/inflection v1.0.0 // indirect
-	github.com/jinzhu/now v1.1.5 // indirect
 	github.com/mattn/go-colorable v0.1.14 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db // indirect
@@ -34,7 +27,7 @@ require (
 	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/schollz/progressbar/v2 v2.15.0 // indirect
 	github.com/sugarme/regexpset v0.0.0-20200920021344-4d4ec8eaf93c // indirect
-	golang.org/x/sys v0.41.0 // indirect
-	golang.org/x/text v0.33.0 // indirect
+	golang.org/x/sys v0.39.0 // indirect
+	golang.org/x/text v0.32.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -10,17 +10,11 @@ github.com/emirpasic/gods v1.18.1 h1:FXtiHYKDGKCW2KzwZKx0iC0PQmdlorYgdFG9jPXJ1Bc
 github.com/emirpasic/gods v1.18.1/go.mod h1:8tpGGwCnJ5H4r6BWwaV6OrWmMoPhUl5jm/FMNAnJvWQ=
 github.com/fsnotify/fsnotify v1.9.0 h1:2Ml+OJNzbYCTzsxtv8vKSFD9PbJjmhYF14k/jKC7S9k=
 github.com/fsnotify/fsnotify v1.9.0/go.mod h1:8jBTzvmWwFyi3Pb8djgCCO5IBqzKJ/Jwo8TRcHyHii0=
-github.com/go-chi/chi/v5 v5.2.5 h1:Eg4myHZBjyvJmAFjFvWgrqDTXFyOzjj7YIm3L3mu6Ug=
-github.com/go-chi/chi/v5 v5.2.5/go.mod h1:X7Gx4mteadT3eDOMTsXzmI4/rwUpOwBHLpAfupzFJP0=
-github.com/go-gormigrate/gormigrate/v2 v2.1.5 h1:1OyorA5LtdQw12cyJDEHuTrEV3GiXiIhS4/QTTa/SM8=
-github.com/go-gormigrate/gormigrate/v2 v2.1.5/go.mod h1:mj9ekk/7CPF3VjopaFvWKN2v7fN3D9d3eEOAXRhi/+M=
+github.com/go-chi/chi/v5 v5.2.3 h1:WQIt9uxdsAbgIYgid+BpYc+liqQZGMHRaUwp0JUcvdE=
+github.com/go-chi/chi/v5 v5.2.3/go.mod h1:L2yAIGWB3H+phAw1NxKwWM+7eUH/lU8pOMm5hHcoops=
 github.com/goccy/go-json v0.10.5 h1:Fq85nIqj+gXn/S5ahsiTlK3TmC85qgirsdTP/+DeaC4=
 github.com/goccy/go-json v0.10.5/go.mod h1:oq7eo15ShAhp70Anwd5lgX2pLfOS3QCiwU/PULtXL6M=
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
-github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E=
-github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
-github.com/jinzhu/now v1.1.5 h1:/o9tlHleP7gOFmsnYNz3RGnqzefHA47wQpKrrdTIwXQ=
-github.com/jinzhu/now v1.1.5/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
 github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
 github.com/mattn/go-colorable v0.1.14 h1:9A9LHSqF/7dyVVX6g0U9cwm9pG3kP9gSzcuIPHPsaIE=
 github.com/mattn/go-colorable v0.1.14/go.mod h1:6LmQG8QLFO4G5z1gPvYEzlUgJ2wF+stgPZH1UqBm1s8=
@@ -28,8 +22,8 @@ github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/
 github.com/mattn/go-isatty v0.0.19/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
 github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
 github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
-github.com/mattn/go-sqlite3 v1.14.33 h1:A5blZ5ulQo2AtayQ9/limgHEkFreKj1Dv226a1K73s0=
-github.com/mattn/go-sqlite3 v1.14.33/go.mod h1:Uh1q+B4BYcTPb+yiD3kU8Ct7aC0hY9fxUwlHK0RXw+Y=
+github.com/mattn/go-sqlite3 v1.14.32 h1:JD12Ag3oLy1zQA+BNn74xRgaBbdhbNIDYvQUEuuErjs=
+github.com/mattn/go-sqlite3 v1.14.32/go.mod h1:Uh1q+B4BYcTPb+yiD3kU8Ct7aC0hY9fxUwlHK0RXw+Y=
 github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db h1:62I3jR2EmQ4l5rM/4FEfDWcRD+abF5XlKShorW5LRoQ=
 github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db/go.mod h1:l0dey0ia/Uv7NcFFVbCLtqEBQbrT4OCwCSKTEv6enCw=
 github.com/patrickmn/go-cache v2.1.0+incompatible h1:HRMgzkcYKYpi3C8ajMPV8OFXaaRUnok+kx1WdO15EQc=
@@ -44,8 +38,6 @@ github.com/rs/zerolog v1.34.0 h1:k43nTLIwcTVQAncfCw4KZ2VY6ukYoZaBPNOE8txlOeY=
 github.com/rs/zerolog v1.34.0/go.mod h1:bJsvje4Z08ROH4Nhs5iH600c3IkWhwp44iRc54W6wYQ=
 github.com/schollz/progressbar/v2 v2.15.0 h1:dVzHQ8fHRmtPjD3K10jT3Qgn/+H+92jhPrhmxIJfDz8=
 github.com/schollz/progressbar/v2 v2.15.0/go.mod h1:UdPq3prGkfQ7MOzZKlDRpYKcFqEMczbD7YmbPgpzKMI=
-github.com/smacker/go-tree-sitter v0.0.0-20240827094217-dd81d9e9be82 h1:6C8qej6f1bStuePVkLSFxoU22XBS165D3klxlzRg8F4=
-github.com/smacker/go-tree-sitter v0.0.0-20240827094217-dd81d9e9be82/go.mod h1:xe4pgH49k4SsmkQq5OT8abwhWmnzkhpgnXeekbx2efw=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
@@ -54,20 +46,14 @@ github.com/sugarme/regexpset v0.0.0-20200920021344-4d4ec8eaf93c h1:pwb4kNSHb4K89
 github.com/sugarme/regexpset v0.0.0-20200920021344-4d4ec8eaf93c/go.mod h1:2gwkXLWbDGUQWeL3RtpCmcY4mzCtU13kb9UsAg9xMaw=
 github.com/yalue/onnxruntime_go v1.25.0 h1:nlhVau1BpLZ/BYr+WpPZCJRD/WES0qo6dK7aKyyAs3g=
 github.com/yalue/onnxruntime_go v1.25.0/go.mod h1:b4X26A8pekNb1ACJ58wAXgNKeUCGEAQ9dmACut9Sm/4=
-golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4=
-golang.org/x/sync v0.19.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.41.0 h1:Ivj+2Cp/ylzLiEU89QhWblYnOE9zerudt9Ftecq2C6k=
-golang.org/x/sys v0.41.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
-golang.org/x/text v0.33.0 h1:B3njUFyqtHDUI5jMn1YIr5B0IE2U0qck04r6d4KPAxE=
-golang.org/x/text v0.33.0/go.mod h1:LuMebE6+rBincTi9+xWTY8TztLzKHc/9C1uBCG27+q8=
+golang.org/x/sys v0.39.0 h1:CvCKL8MeisomCi6qNZ+wbb0DN9E5AATixKsvNtMoMFk=
+golang.org/x/sys v0.39.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/text v0.32.0 h1:ZD01bjUt1FQ9WJ0ClOL5vxgxOI/sVCNgX1YtKwcY0mU=
+golang.org/x/text v0.32.0/go.mod h1:o/rUWzghvpD5TXrTIBuJU77MTaN0ljMWE47kxGJQ7jY=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gorm.io/driver/sqlite v1.6.0 h1:WHRRrIiulaPiPFmDcod6prc4l2VGVWHz80KspNsxSfQ=
-gorm.io/driver/sqlite v1.6.0/go.mod h1:AO9V1qIQddBESngQUKWL9yoH93HIeA1X6V633rBwyT8=
-gorm.io/gorm v1.31.1 h1:7CA8FTFz/gRfgqgpeKIBcervUn3xSyPUmr6B2WXJ7kg=
-gorm.io/gorm v1.31.1/go.mod h1:XyQVbO2k6YkOis7C2437jSit3SsDK72s7n7rsSHd+Gs=

internal/chunking/golang/chunker.go

@@ -1,285 +0,0 @@
-// Package golang provides AST-aware chunking for Go source files.
-package golang
-
-import (
-	"context"
-	"fmt"
-	"go/ast"
-	"go/parser"
-	"go/token"
-	"os"
-	"strings"
-
-	"github.com/lukaszraczylo/claude-mnemonic/internal/chunking"
-)
-
-// Chunker implements AST-aware chunking for Go files.
-type Chunker struct {
-	options chunking.ChunkOptions
-}
-
-// NewChunker creates a new Go chunker.
-func NewChunker(options chunking.ChunkOptions) *Chunker {
-	return &Chunker{options: options}
-}
-
-// Language returns the language this chunker supports.
-func (c *Chunker) Language() chunking.Language {
-	return chunking.LanguageGo
-}
-
-// SupportedExtensions returns the file extensions this chunker handles.
-func (c *Chunker) SupportedExtensions() []string {
-	return []string{".go"}
-}
-
-// Chunk parses a Go source file and returns semantic code chunks.
-func (c *Chunker) Chunk(ctx context.Context, filePath string) ([]chunking.Chunk, error) {
-	// Read file content
-	content, err := os.ReadFile(filePath)
-	if err != nil {
-		return nil, fmt.Errorf("read file: %w", err)
-	}
-
-	// Parse the Go file
-	fset := token.NewFileSet()
-	file, err := parser.ParseFile(fset, filePath, content, parser.ParseComments)
-	if err != nil {
-		return nil, fmt.Errorf("parse Go file: %w", err)
-	}
-
-	chunks := make([]chunking.Chunk, 0)
-	sourceLines := strings.Split(string(content), "\n")
-
-	// Extract chunks from declarations
-	for _, decl := range file.Decls {
-		switch d := decl.(type) {
-		case *ast.FuncDecl:
-			chunk := c.extractFunction(fset, d, sourceLines, filePath)
-			if chunk != nil {
-				chunks = append(chunks, *chunk)
-			}
-		case *ast.GenDecl:
-			extracted := c.extractGenDecl(fset, d, sourceLines, filePath)
-			chunks = append(chunks, extracted...)
-		}
-	}
-
-	return chunks, nil
-}
-
-// extractFunction extracts a function or method declaration as a chunk.
-func (c *Chunker) extractFunction(fset *token.FileSet, fn *ast.FuncDecl, sourceLines []string, filePath string) *chunking.Chunk {
-	// Skip unexported if configured
-	if !c.options.IncludePrivate && !fn.Name.IsExported() {
-		return nil
-	}
-
-	startPos := fset.Position(fn.Pos())
-	endPos := fset.Position(fn.End())
-
-	chunk := &chunking.Chunk{
-		FilePath:  filePath,
-		Language:  chunking.LanguageGo,
-		Name:      fn.Name.Name,
-		StartLine: startPos.Line,
-		EndLine:   endPos.Line,
-	}
-
-	// Determine if this is a method or a function
-	if fn.Recv != nil && len(fn.Recv.List) > 0 {
-		chunk.Type = chunking.ChunkTypeMethod
-		chunk.ParentName = c.extractReceiverType(fn.Recv)
-	} else {
-		chunk.Type = chunking.ChunkTypeFunction
-	}
-
-	// Extract content
-	chunk.Content = c.extractLines(sourceLines, startPos.Line, endPos.Line)
-
-	// Extract signature (function declaration without body)
-	chunk.Signature = c.extractFunctionSignature(fn, fset, sourceLines)
-
-	// Extract doc comment
-	if c.options.IncludeDocComments && fn.Doc != nil {
-		chunk.DocComment = strings.TrimSpace(fn.Doc.Text())
-	}
-
-	return chunk
-}
-
-// extractGenDecl extracts general declarations (type, const, var).
-func (c *Chunker) extractGenDecl(fset *token.FileSet, gd *ast.GenDecl, sourceLines []string, filePath string) []chunking.Chunk {
-	var chunks []chunking.Chunk
-
-	for _, spec := range gd.Specs {
-		switch s := spec.(type) {
-		case *ast.TypeSpec:
-			chunk := c.extractTypeSpec(fset, gd, s, sourceLines, filePath)
-			if chunk != nil {
-				chunks = append(chunks, *chunk)
-			}
-		case *ast.ValueSpec:
-			// Handle const and var declarations
-			chunk := c.extractValueSpec(fset, gd, s, sourceLines, filePath)
-			if chunk != nil {
-				chunks = append(chunks, *chunk)
-			}
-		}
-	}
-
-	return chunks
-}
-
-// extractTypeSpec extracts a type declaration (struct, interface, type alias).
-func (c *Chunker) extractTypeSpec(fset *token.FileSet, gd *ast.GenDecl, ts *ast.TypeSpec, sourceLines []string, filePath string) *chunking.Chunk {
-	// Skip unexported if configured
-	if !c.options.IncludePrivate && !ts.Name.IsExported() {
-		return nil
-	}
-
-	startPos := fset.Position(gd.Pos())
-	endPos := fset.Position(gd.End())
-
-	chunk := &chunking.Chunk{
-		FilePath:  filePath,
-		Language:  chunking.LanguageGo,
-		Name:      ts.Name.Name,
-		StartLine: startPos.Line,
-		EndLine:   endPos.Line,
-		Content:   c.extractLines(sourceLines, startPos.Line, endPos.Line),
-	}
-
-	// Determine chunk type based on type expression
-	switch ts.Type.(type) {
-	case *ast.StructType:
-		chunk.Type = chunking.ChunkTypeClass // Treat struct as class
-	case *ast.InterfaceType:
-		chunk.Type = chunking.ChunkTypeInterface
-	default:
-		chunk.Type = chunking.ChunkTypeType
-	}
-
-	// Extract doc comment
-	if c.options.IncludeDocComments && gd.Doc != nil {
-		chunk.DocComment = strings.TrimSpace(gd.Doc.Text())
-	}
-
-	return chunk
-}
-
-// extractValueSpec extracts const or var declarations.
-func (c *Chunker) extractValueSpec(fset *token.FileSet, gd *ast.GenDecl, vs *ast.ValueSpec, sourceLines []string, filePath string) *chunking.Chunk {
-	// Skip if all names are unexported and we're excluding private
-	if !c.options.IncludePrivate {
-		allUnexported := true
-		for _, name := range vs.Names {
-			if name.IsExported() {
-				allUnexported = false
-				break
-			}
-		}
-		if allUnexported {
-			return nil
-		}
-	}
-
-	startPos := fset.Position(gd.Pos())
-	endPos := fset.Position(gd.End())
-
-	// Use first name as the chunk name, join multiple if present
-	names := make([]string, len(vs.Names))
-	for i, name := range vs.Names {
-		names[i] = name.Name
-	}
-
-	chunk := &chunking.Chunk{
-		FilePath:  filePath,
-		Language:  chunking.LanguageGo,
-		Name:      strings.Join(names, ", "),
-		StartLine: startPos.Line,
-		EndLine:   endPos.Line,
-		Content:   c.extractLines(sourceLines, startPos.Line, endPos.Line),
-	}
-
-	// Set type based on token
-	if gd.Tok == token.CONST {
-		chunk.Type = chunking.ChunkTypeConst
-	} else {
-		chunk.Type = chunking.ChunkTypeVar
-	}
-
-	// Extract doc comment
-	if c.options.IncludeDocComments && gd.Doc != nil {
-		chunk.DocComment = strings.TrimSpace(gd.Doc.Text())
-	}
-
-	return chunk
-}
-
-// extractReceiverType extracts the receiver type name from a method.
-func (c *Chunker) extractReceiverType(recv *ast.FieldList) string {
-	if len(recv.List) == 0 {
-		return ""
-	}
-
-	field := recv.List[0]
-	switch t := field.Type.(type) {
-	case *ast.Ident:
-		return t.Name
-	case *ast.StarExpr:
-		if ident, ok := t.X.(*ast.Ident); ok {
-			return ident.Name
-		}
-	}
-
-	return ""
-}
-
-// extractFunctionSignature extracts the function signature without the body.
-func (c *Chunker) extractFunctionSignature(fn *ast.FuncDecl, fset *token.FileSet, sourceLines []string) string {
-	if fn.Body == nil {
-		// No body, return entire declaration
-		startPos := fset.Position(fn.Pos())
-		endPos := fset.Position(fn.End())
-		return c.extractLines(sourceLines, startPos.Line, endPos.Line)
-	}
-
-	// Extract from start of function to just before body
-	startPos := fset.Position(fn.Pos())
-	bodyPos := fset.Position(fn.Body.Pos())
-
-	// If body is on the same line, extract just that line up to the opening brace
-	if startPos.Line == bodyPos.Line {
-		line := sourceLines[startPos.Line-1]
-		// Find the opening brace position
-		if idx := strings.Index(line[startPos.Column-1:], "{"); idx >= 0 {
-			return strings.TrimSpace(line[startPos.Column-1 : startPos.Column-1+idx])
-		}
-		return strings.TrimSpace(line[startPos.Column-1:])
-	}
-
-	// Get lines from start to the line containing the opening brace
-	sig := c.extractLines(sourceLines, startPos.Line, bodyPos.Line)
-	// Remove the opening brace and anything after it
-	if idx := strings.Index(sig, "{"); idx >= 0 {
-		sig = sig[:idx]
-	}
-	return strings.TrimSpace(sig)
-}
-
-// extractLines extracts a range of lines from source (1-indexed, inclusive).
-func (c *Chunker) extractLines(lines []string, start, end int) string {
-	if start < 1 || end < start || start > len(lines) {
-		return ""
-	}
-
-	// Adjust for 0-indexed array (start and end are 1-indexed)
-	startIdx := start - 1
-	endIdx := end
-	if endIdx > len(lines) {
-		endIdx = len(lines)
-	}
-
-	return strings.Join(lines[startIdx:endIdx], "\n")
-}

internal/chunking/golang/chunker_test.go

@@ -1,214 +0,0 @@
-package golang
-
-import (
-	"context"
-	"os"
-	"path/filepath"
-	"testing"
-
-	"github.com/lukaszraczylo/claude-mnemonic/internal/chunking"
-)
-
-func TestGoChunker_BasicFunctions(t *testing.T) {
-	// Create temp test file
-	tmpDir := t.TempDir()
-	testFile := filepath.Join(tmpDir, "test.go")
-
-	testCode := `package main
-
-import "fmt"
-
-// Greet prints a greeting message
-func Greet(name string) {
-	fmt.Printf("Hello, %s!\n", name)
-}
-
-// Add adds two numbers
-func Add(a, b int) int {
-	return a + b
-}
-
-// unexported function should be included by default
-func helper() string {
-	return "helper"
-}
-`
-
-	if err := os.WriteFile(testFile, []byte(testCode), 0600); err != nil {
-		t.Fatalf("Failed to create test file: %v", err)
-	}
-
-	// Create chunker with default options
-	chunker := NewChunker(chunking.DefaultChunkOptions())
-
-	// Chunk the file
-	chunks, err := chunker.Chunk(context.Background(), testFile)
-	if err != nil {
-		t.Fatalf("Chunk() failed: %v", err)
-	}
-
-	// Verify we got all functions
-	if len(chunks) != 3 {
-		t.Errorf("Expected 3 chunks (Greet, Add, helper), got %d", len(chunks))
-	}
-
-	// Verify chunk details
-	expectedNames := map[string]bool{
-		"Greet":  false,
-		"Add":    false,
-		"helper": false,
-	}
-
-	for _, chunk := range chunks {
-		if chunk.Type != chunking.ChunkTypeFunction {
-			t.Errorf("Expected chunk type 'function', got '%s'", chunk.Type)
-		}
-
-		if chunk.Language != chunking.LanguageGo {
-			t.Errorf("Expected language 'go', got '%s'", chunk.Language)
-		}
-
-		if _, ok := expectedNames[chunk.Name]; !ok {
-			t.Errorf("Unexpected function name: %s", chunk.Name)
-		} else {
-			expectedNames[chunk.Name] = true
-		}
-
-		// Verify content is non-empty
-		if chunk.Content == "" {
-			t.Errorf("Chunk %s has empty content", chunk.Name)
-		}
-
-		// Verify signature is present for functions
-		if chunk.Signature == "" {
-			t.Errorf("Chunk %s has empty signature", chunk.Name)
-		}
-	}
-
-	// Verify all expected functions were found
-	for name, found := range expectedNames {
-		if !found {
-			t.Errorf("Expected function %s not found", name)
-		}
-	}
-}
-
-func TestGoChunker_StructsAndMethods(t *testing.T) {
-	tmpDir := t.TempDir()
-	testFile := filepath.Join(tmpDir, "test.go")
-
-	testCode := `package main
-
-// User represents a user
-type User struct {
-	ID   int
-	Name string
-}
-
-// GetName returns the user's name
-func (u *User) GetName() string {
-	return u.Name
-}
-
-// SetName sets the user's name
-func (u *User) SetName(name string) {
-	u.Name = name
-}
-`
-
-	if err := os.WriteFile(testFile, []byte(testCode), 0600); err != nil {
-		t.Fatalf("Failed to create test file: %v", err)
-	}
-
-	chunker := NewChunker(chunking.DefaultChunkOptions())
-	chunks, err := chunker.Chunk(context.Background(), testFile)
-	if err != nil {
-		t.Fatalf("Chunk() failed: %v", err)
-	}
-
-	// Should have 1 struct + 2 methods = 3 chunks
-	if len(chunks) != 3 {
-		t.Errorf("Expected 3 chunks (User struct, GetName, SetName), got %d", len(chunks))
-	}
-
-	// Find the struct and methods
-	var structChunk, getNameChunk, setNameChunk *chunking.Chunk
-	for i := range chunks {
-		switch chunks[i].Name {
-		case "User":
-			structChunk = &chunks[i]
-		case "GetName":
-			getNameChunk = &chunks[i]
-		case "SetName":
-			setNameChunk = &chunks[i]
-		}
-	}
-
-	// Verify struct
-	if structChunk == nil {
-		t.Fatal("User struct not found")
-	}
-	if structChunk.Type != chunking.ChunkTypeClass {
-		t.Errorf("Expected User to be ChunkTypeClass, got %s", structChunk.Type)
-	}
-
-	// Verify methods
-	if getNameChunk == nil {
-		t.Fatal("GetName method not found")
-	}
-	if getNameChunk.Type != chunking.ChunkTypeMethod {
-		t.Errorf("Expected GetName to be ChunkTypeMethod, got %s", getNameChunk.Type)
-	}
-	if getNameChunk.ParentName != "User" {
-		t.Errorf("Expected GetName parent to be 'User', got '%s'", getNameChunk.ParentName)
-	}
-
-	if setNameChunk == nil {
-		t.Fatal("SetName method not found")
-	}
-	if setNameChunk.Type != chunking.ChunkTypeMethod {
-		t.Errorf("Expected SetName to be ChunkTypeMethod, got %s", setNameChunk.Type)
-	}
-	if setNameChunk.ParentName != "User" {
-		t.Errorf("Expected SetName parent to be 'User', got '%s'", setNameChunk.ParentName)
-	}
-}
-
-func TestGoChunker_DocComments(t *testing.T) {
-	tmpDir := t.TempDir()
-	testFile := filepath.Join(tmpDir, "test.go")
-
-	testCode := `package main
-
-// Calculate performs a calculation.
-// It takes two integers and returns their sum.
-func Calculate(a, b int) int {
-	return a + b
-}
-`
-
-	if err := os.WriteFile(testFile, []byte(testCode), 0600); err != nil {
-		t.Fatalf("Failed to create test file: %v", err)
-	}
-
-	chunker := NewChunker(chunking.DefaultChunkOptions())
-	chunks, err := chunker.Chunk(context.Background(), testFile)
-	if err != nil {
-		t.Fatalf("Chunk() failed: %v", err)
-	}
-
-	if len(chunks) != 1 {
-		t.Fatalf("Expected 1 chunk, got %d", len(chunks))
-	}
-
-	chunk := chunks[0]
-	if chunk.DocComment == "" {
-		t.Error("Expected doc comment to be present")
-	}
-
-	// Doc comment should contain the comment text
-	expectedComment := "Calculate performs a calculation.\nIt takes two integers and returns their sum."
-	if chunk.DocComment != expectedComment {
-		t.Errorf("Expected doc comment '%s', got '%s'", expectedComment, chunk.DocComment)
-	}
-}

internal/chunking/manager.go

@@ -1,106 +0,0 @@
-package chunking
-
-import (
-	"context"
-	"fmt"
-	"path/filepath"
-	"strings"
-)
-
-// Manager dispatches files to appropriate language-specific chunkers.
-type Manager struct {
-	chunkers map[string]Chunker // extension -> chunker
-	options  ChunkOptions
-}
-
-// NewManager creates a new chunking manager with the given chunkers.
-func NewManager(chunkers []Chunker, options ChunkOptions) *Manager {
-	m := &Manager{
-		chunkers: make(map[string]Chunker),
-		options:  options,
-	}
-
-	// Register chunkers by their supported extensions
-	for _, chunker := range chunkers {
-		for _, ext := range chunker.SupportedExtensions() {
-			m.chunkers[ext] = chunker
-		}
-	}
-
-	return m
-}
-
-// ChunkFile chunks a single file using the appropriate language chunker.
-// Returns an error if no chunker is found for the file extension.
-func (m *Manager) ChunkFile(ctx context.Context, filePath string) ([]Chunk, error) {
-	ext := strings.ToLower(filepath.Ext(filePath))
-	chunker, ok := m.chunkers[ext]
-	if !ok {
-		return nil, fmt.Errorf("no chunker for extension %s", ext)
-	}
-
-	chunks, err := chunker.Chunk(ctx, filePath)
-	if err != nil {
-		return nil, fmt.Errorf("chunk %s: %w", filePath, err)
-	}
-
-	// Apply options-based filtering
-	filtered := make([]Chunk, 0, len(chunks))
-	for _, chunk := range chunks {
-		// Filter by minimum lines
-		if m.options.MinLines > 0 {
-			lineCount := chunk.EndLine - chunk.StartLine + 1
-			if lineCount < m.options.MinLines {
-				continue
-			}
-		}
-
-		// Filter by maximum chunk size
-		if m.options.MaxChunkSize > 0 && len(chunk.Content) > m.options.MaxChunkSize {
-			// TODO: Consider splitting large chunks intelligently
-			// For now, skip chunks that are too large
-			continue
-		}
-
-		filtered = append(filtered, chunk)
-	}
-
-	return filtered, nil
-}
-
-// ChunkFiles chunks multiple files in parallel.
-// Returns a map of file path to chunks, and any errors encountered.
-// Errors for individual files do not stop processing of other files.
-func (m *Manager) ChunkFiles(ctx context.Context, filePaths []string) (map[string][]Chunk, []error) {
-	results := make(map[string][]Chunk)
-	var errors []error
-
-	for _, filePath := range filePaths {
-		chunks, err := m.ChunkFile(ctx, filePath)
-		if err != nil {
-			errors = append(errors, fmt.Errorf("%s: %w", filePath, err))
-			continue
-		}
-		if len(chunks) > 0 {
-			results[filePath] = chunks
-		}
-	}
-
-	return results, errors
-}
-
-// SupportsFile checks if the manager can chunk the given file based on extension.
-func (m *Manager) SupportsFile(filePath string) bool {
-	ext := strings.ToLower(filepath.Ext(filePath))
-	_, ok := m.chunkers[ext]
-	return ok
-}
-
-// SupportedExtensions returns all file extensions supported by registered chunkers.
-func (m *Manager) SupportedExtensions() []string {
-	exts := make([]string, 0, len(m.chunkers))
-	for ext := range m.chunkers {
-		exts = append(exts, ext)
-	}
-	return exts
-}

internal/chunking/manager_test.go

@@ -1,162 +0,0 @@
-package chunking
-
-import (
-	"context"
-	"os"
-	"path/filepath"
-	"testing"
-)
-
-// mockChunker is a test chunker that returns dummy chunks
-type mockChunker struct{}
-
-func (m *mockChunker) Chunk(ctx context.Context, filePath string) ([]Chunk, error) {
-	// Just return an empty chunk for testing
-	return []Chunk{
-		{
-			FilePath:  filePath,
-			Language:  LanguageGo,
-			Type:      ChunkTypeFunction,
-			Name:      "TestFunc",
-			StartLine: 1,
-			EndLine:   1,
-			Content:   "test",
-		},
-	}, nil
-}
-
-func (m *mockChunker) Language() Language {
-	return LanguageGo
-}
-
-func (m *mockChunker) SupportedExtensions() []string {
-	return []string{".go", ".py", ".ts"}
-}
-
-func TestManager_ChunkMultipleFiles(t *testing.T) {
-	tmpDir := t.TempDir()
-
-	// Create a Go file
-	goFile := filepath.Join(tmpDir, "test.go")
-	goCode := `package main
-
-func Hello() string {
-	return "hello"
-}
-`
-	if err := os.WriteFile(goFile, []byte(goCode), 0600); err != nil {
-		t.Fatalf("Failed to create Go file: %v", err)
-	}
-
-	// Create a Python file
-	pyFile := filepath.Join(tmpDir, "test.py")
-	pyCode := `def greet(name):
-    return f"Hello, {name}!"
-
-class User:
-    def __init__(self, name):
-        self.name = name
-`
-	if err := os.WriteFile(pyFile, []byte(pyCode), 0600); err != nil {
-		t.Fatalf("Failed to create Python file: %v", err)
-	}
-
-	// Create a TypeScript file
-	tsFile := filepath.Join(tmpDir, "test.ts")
-	tsCode := `function add(a: number, b: number): number {
-    return a + b;
-}
-
-class Calculator {
-    multiply(a: number, b: number): number {
-        return a * b;
-    }
-}
-`
-	if err := os.WriteFile(tsFile, []byte(tsCode), 0600); err != nil {
-		t.Fatalf("Failed to create TypeScript file: %v", err)
-	}
-
-	// Create manager
-	manager := NewManager([]Chunker{&mockChunker{}}, DefaultChunkOptions())
-
-	// Test SupportsFile
-	if !manager.SupportsFile(goFile) {
-		t.Error("Manager should support .go files")
-	}
-	if !manager.SupportsFile(pyFile) {
-		t.Error("Manager should support .py files")
-	}
-	if !manager.SupportsFile(tsFile) {
-		t.Error("Manager should support .ts files")
-	}
-
-	unsupportedFile := filepath.Join(tmpDir, "test.txt")
-	if manager.SupportsFile(unsupportedFile) {
-		t.Error("Manager should not support .txt files")
-	}
-
-	// Test ChunkFiles
-	results, errs := manager.ChunkFiles(context.Background(), []string{goFile, pyFile, tsFile})
-	if len(errs) > 0 {
-		t.Errorf("ChunkFiles returned errors: %v", errs)
-	}
-
-	if len(results) != 3 {
-		t.Errorf("Expected results for 3 files, got %d", len(results))
-	}
-
-	// Verify each file has chunks
-	for _, file := range []string{goFile, pyFile, tsFile} {
-		if chunks, ok := results[file]; !ok || len(chunks) == 0 {
-			t.Errorf("No chunks found for file %s", file)
-		}
-	}
-}
-
-// mockChunkerWithExts is a test chunker with configurable extensions
-type mockChunkerWithExts struct {
-	exts []string
-}
-
-func (m *mockChunkerWithExts) Chunk(ctx context.Context, filePath string) ([]Chunk, error) {
-	return nil, nil
-}
-
-func (m *mockChunkerWithExts) Language() Language {
-	return LanguageGo
-}
-
-func (m *mockChunkerWithExts) SupportedExtensions() []string {
-	return m.exts
-}
-
-func TestManager_SupportedExtensions(t *testing.T) {
-
-	// Create manager with mock chunkers
-	manager := NewManager([]Chunker{
-		&mockChunkerWithExts{exts: []string{".go"}},
-		&mockChunkerWithExts{exts: []string{".py", ".pyw"}},
-	}, DefaultChunkOptions())
-
-	exts := manager.SupportedExtensions()
-	expectedExts := map[string]bool{
-		".go":  false,
-		".py":  false,
-		".pyw": false,
-	}
-
-	for _, ext := range exts {
-		if _, ok := expectedExts[ext]; ok {
-			expectedExts[ext] = true
-		} else {
-			t.Errorf("Unexpected extension: %s", ext)
-		}
-	}
-
-	for ext, found := range expectedExts {
-		if !found {
-			t.Errorf("Expected extension %s not found", ext)
-		}
-	}
-}

internal/chunking/python/chunker.go

@@ -1,291 +0,0 @@
-// Package python provides AST-aware chunking for Python source files using tree-sitter.
-package python
-
-import (
-	"context"
-	"fmt"
-	"os"
-	"strings"
-
-	sitter "github.com/smacker/go-tree-sitter"
-	"github.com/smacker/go-tree-sitter/python"
-
-	"github.com/lukaszraczylo/claude-mnemonic/internal/chunking"
-)
-
-// Chunker implements AST-aware chunking for Python files.
-type Chunker struct {
-	parser  *sitter.Parser
-	options chunking.ChunkOptions
-}
-
-// NewChunker creates a new Python chunker.
-func NewChunker(options chunking.ChunkOptions) *Chunker {
-	parser := sitter.NewParser()
-	parser.SetLanguage(python.GetLanguage())
-
-	return &Chunker{
-		options: options,
-		parser:  parser,
-	}
-}
-
-// Language returns the language this chunker supports.
-func (c *Chunker) Language() chunking.Language {
-	return chunking.LanguagePython
-}
-
-// SupportedExtensions returns the file extensions this chunker handles.
-func (c *Chunker) SupportedExtensions() []string {
-	return []string{".py"}
-}
-
-// Chunk parses a Python source file and returns semantic code chunks.
-func (c *Chunker) Chunk(ctx context.Context, filePath string) ([]chunking.Chunk, error) {
-	// Read file content
-	content, err := os.ReadFile(filePath)
-	if err != nil {
-		return nil, fmt.Errorf("read file: %w", err)
-	}
-
-	// Parse the Python file
-	tree, err := c.parser.ParseCtx(ctx, nil, content)
-	if err != nil {
-		return nil, fmt.Errorf("parse Python file: %w", err)
-	}
-	defer tree.Close()
-
-	sourceLines := strings.Split(string(content), "\n")
-	chunks := make([]chunking.Chunk, 0)
-
-	// Walk the AST and extract chunks
-	c.walkNode(tree.RootNode(), content, sourceLines, filePath, "", &chunks)
-
-	return chunks, nil
-}
-
-// walkNode recursively walks the tree-sitter AST and extracts chunks.
-func (c *Chunker) walkNode(node *sitter.Node, source []byte, sourceLines []string, filePath string, parentName string, chunks *[]chunking.Chunk) {
-	nodeType := node.Type()
-
-	switch nodeType {
-	case "function_definition":
-		chunk := c.extractFunction(node, source, sourceLines, filePath, parentName)
-		if chunk != nil {
-			*chunks = append(*chunks, *chunk)
-		}
-
-	case "class_definition":
-		chunk := c.extractClass(node, source, sourceLines, filePath)
-		if chunk != nil {
-			*chunks = append(*chunks, *chunk)
-
-			// Walk class body to find methods
-			for i := 0; i < int(node.ChildCount()); i++ {
-				child := node.Child(i)
-				if child.Type() == "block" {
-					c.walkNode(child, source, sourceLines, filePath, chunk.Name, chunks)
-				}
-			}
-		}
-		return // Don't walk children again
-
-	case "block":
-		// Walk statements in block
-		for i := 0; i < int(node.ChildCount()); i++ {
-			c.walkNode(node.Child(i), source, sourceLines, filePath, parentName, chunks)
-		}
-		return
-	}
-
-	// Walk all children
-	for i := 0; i < int(node.ChildCount()); i++ {
-		c.walkNode(node.Child(i), source, sourceLines, filePath, parentName, chunks)
-	}
-}
-
-// extractFunction extracts a function definition chunk.
-func (c *Chunker) extractFunction(node *sitter.Node, source []byte, sourceLines []string, filePath string, parentName string) *chunking.Chunk {
-	// Find function name
-	var nameNode *sitter.Node
-	for i := 0; i < int(node.ChildCount()); i++ {
-		child := node.Child(i)
-		if child.Type() == "identifier" {
-			nameNode = child
-			break
-		}
-	}
-
-	if nameNode == nil {
-		return nil
-	}
-
-	name := nameNode.Content(source)
-
-	// Skip private functions if configured
-	if !c.options.IncludePrivate && strings.HasPrefix(name, "_") && !strings.HasPrefix(name, "__") {
-		return nil
-	}
-
-	startLine := int(node.StartPoint().Row) + 1
-	endLine := int(node.EndPoint().Row) + 1
-
-	chunk := &chunking.Chunk{
-		FilePath:   filePath,
-		Language:   chunking.LanguagePython,
-		Name:       name,
-		ParentName: parentName,
-		StartLine:  startLine,
-		EndLine:    endLine,
-		Content:    c.extractLines(sourceLines, startLine, endLine),
-	}
-
-	// Determine if this is a method or function
-	if parentName != "" {
-		chunk.Type = chunking.ChunkTypeMethod
-	} else {
-		chunk.Type = chunking.ChunkTypeFunction
-	}
-
-	// Extract signature (def line)
-	chunk.Signature = c.extractFunctionSignature(node, source, sourceLines)
-
-	// Extract docstring as doc comment
-	if c.options.IncludeDocComments {
-		chunk.DocComment = c.extractDocstring(node, source)
-	}
-
-	return chunk
-}
-
-// extractClass extracts a class definition chunk.
-func (c *Chunker) extractClass(node *sitter.Node, source []byte, sourceLines []string, filePath string) *chunking.Chunk {
-	// Find class name
-	var nameNode *sitter.Node
-	for i := 0; i < int(node.ChildCount()); i++ {
-		child := node.Child(i)
-		if child.Type() == "identifier" {
-			nameNode = child
-			break
-		}
-	}
-
-	if nameNode == nil {
-		return nil
-	}
-
-	name := nameNode.Content(source)
-
-	// Skip private classes if configured
-	if !c.options.IncludePrivate && strings.HasPrefix(name, "_") && !strings.HasPrefix(name, "__") {
-		return nil
-	}
-
-	startLine := int(node.StartPoint().Row) + 1
-	endLine := int(node.EndPoint().Row) + 1
-
-	chunk := &chunking.Chunk{
-		FilePath:  filePath,
-		Language:  chunking.LanguagePython,
-		Type:      chunking.ChunkTypeClass,
-		Name:      name,
-		StartLine: startLine,
-		EndLine:   endLine,
-		Content:   c.extractLines(sourceLines, startLine, endLine),
-	}
-
-	// Extract class signature (class line)
-	chunk.Signature = c.extractClassSignature(node, source, sourceLines)
-
-	// Extract docstring as doc comment
-	if c.options.IncludeDocComments {
-		chunk.DocComment = c.extractDocstring(node, source)
-	}
-
-	return chunk
-}
-
-// extractFunctionSignature extracts the function definition line.
-func (c *Chunker) extractFunctionSignature(node *sitter.Node, source []byte, sourceLines []string) string {
-	startLine := int(node.StartPoint().Row) + 1
-
-	// Find the colon that ends the signature
-	for i := 0; i < int(node.ChildCount()); i++ {
-		child := node.Child(i)
-		if child.Type() == ":" {
-			endLine := int(child.EndPoint().Row) + 1
-			return strings.TrimSpace(c.extractLines(sourceLines, startLine, endLine))
-		}
-	}
-
-	// Fallback: just return first line
-	return strings.TrimSpace(c.extractLines(sourceLines, startLine, startLine))
-}
-
-// extractClassSignature extracts the class definition line.
-func (c *Chunker) extractClassSignature(node *sitter.Node, source []byte, sourceLines []string) string {
-	startLine := int(node.StartPoint().Row) + 1
-
-	// Find the colon that ends the signature
-	for i := 0; i < int(node.ChildCount()); i++ {
-		child := node.Child(i)
-		if child.Type() == ":" {
-			endLine := int(child.EndPoint().Row) + 1
-			return strings.TrimSpace(c.extractLines(sourceLines, startLine, endLine))
-		}
-	}
-
-	// Fallback: just return first line
-	return strings.TrimSpace(c.extractLines(sourceLines, startLine, startLine))
-}
-
-// extractDocstring extracts the docstring from a function or class.
-func (c *Chunker) extractDocstring(node *sitter.Node, source []byte) string {
-	// Find the block
-	var blockNode *sitter.Node
-	for i := 0; i < int(node.ChildCount()); i++ {
-		child := node.Child(i)
-		if child.Type() == "block" {
-			blockNode = child
-			break
-		}
-	}
-
-	if blockNode == nil {
-		return ""
-	}
-
-	// Check if first statement in block is a string (docstring)
-	for i := 0; i < int(blockNode.ChildCount()); i++ {
-		child := blockNode.Child(i)
-		if child.Type() == "expression_statement" {
-			// Check if it contains a string
-			for j := 0; j < int(child.ChildCount()); j++ {
-				grandchild := child.Child(j)
-				if grandchild.Type() == "string" {
-					docstring := grandchild.Content(source)
-					// Remove quotes
-					docstring = strings.Trim(docstring, `"'`)
-					return strings.TrimSpace(docstring)
-				}
-			}
-		}
-	}
-
-	return ""
-}
-
-// extractLines extracts a range of lines from source (1-indexed, inclusive).
-func (c *Chunker) extractLines(lines []string, start, end int) string {
-	if start < 1 || end < start || start > len(lines) {
-		return ""
-	}
-
-	startIdx := start - 1
-	endIdx := end
-	if endIdx > len(lines) {
-		endIdx = len(lines)
-	}
-
-	return strings.Join(lines[startIdx:endIdx], "\n")
-}

internal/chunking/python/chunker_test.go

@@ -1,298 +0,0 @@
-package python
-
-import (
-	"context"
-	"os"
-	"path/filepath"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-
-	"github.com/lukaszraczylo/claude-mnemonic/internal/chunking"
-)
-
-// =============================================================================
-// TEST HELPERS
-// =============================================================================
-
-func createTempPythonFile(t *testing.T, content string) string {
-	t.Helper()
-
-	tmpDir := t.TempDir()
-	filePath := filepath.Join(tmpDir, "test.py")
-
-	err := os.WriteFile(filePath, []byte(content), 0600)
-	require.NoError(t, err)
-
-	return filePath
-}
-
-// =============================================================================
-// TESTS FOR Chunker
-// =============================================================================
-
-func TestNewChunker(t *testing.T) {
-	t.Parallel()
-
-	opts := chunking.DefaultChunkOptions()
-	c := NewChunker(opts)
-
-	assert.NotNil(t, c)
-	assert.NotNil(t, c.parser)
-}
-
-func TestChunker_Language(t *testing.T) {
-	t.Parallel()
-
-	c := NewChunker(chunking.DefaultChunkOptions())
-
-	assert.Equal(t, chunking.LanguagePython, c.Language())
-}
-
-func TestChunker_SupportedExtensions(t *testing.T) {
-	t.Parallel()
-
-	c := NewChunker(chunking.DefaultChunkOptions())
-	exts := c.SupportedExtensions()
-
-	assert.Contains(t, exts, ".py")
-}
-
-func TestChunker_Chunk_SimpleFunction(t *testing.T) {
-	t.Parallel()
-
-	code := `def greet(name):
-    """Greets a person by name."""
-    return f"Hello, {name}!"
-`
-
-	filePath := createTempPythonFile(t, code)
-	c := NewChunker(chunking.DefaultChunkOptions())
-
-	chunks, err := c.Chunk(context.Background(), filePath)
-	require.NoError(t, err)
-	require.NotEmpty(t, chunks)
-
-	// Should find the greet function
-	var foundGreet bool
-	for _, chunk := range chunks {
-		if chunk.Name == "greet" {
-			foundGreet = true
-			assert.Equal(t, chunking.ChunkTypeFunction, chunk.Type)
-			assert.Equal(t, chunking.LanguagePython, chunk.Language)
-			assert.Contains(t, chunk.Content, "def greet")
-		}
-	}
-	assert.True(t, foundGreet, "Should find 'greet' function")
-}
-
-func TestChunker_Chunk_ClassWithMethods(t *testing.T) {
-	t.Parallel()
-
-	code := `class Calculator:
-    """A simple calculator class."""
-
-    def add(self, a, b):
-        """Adds two numbers."""
-        return a + b
-
-    def multiply(self, a, b):
-        """Multiplies two numbers."""
-        return a * b
-`
-
-	filePath := createTempPythonFile(t, code)
-	c := NewChunker(chunking.DefaultChunkOptions())
-
-	chunks, err := c.Chunk(context.Background(), filePath)
-	require.NoError(t, err)
-	require.NotEmpty(t, chunks)
-
-	// Should find the Calculator class and its methods
-	var foundClass, foundAdd, foundMultiply bool
-	for _, chunk := range chunks {
-		switch chunk.Name {
-		case "Calculator":
-			foundClass = true
-			assert.Equal(t, chunking.ChunkTypeClass, chunk.Type)
-		case "add":
-			foundAdd = true
-			assert.Equal(t, chunking.ChunkTypeMethod, chunk.Type)
-			assert.Equal(t, "Calculator", chunk.ParentName)
-		case "multiply":
-			foundMultiply = true
-			assert.Equal(t, chunking.ChunkTypeMethod, chunk.Type)
-			assert.Equal(t, "Calculator", chunk.ParentName)
-		}
-	}
-
-	assert.True(t, foundClass, "Should find 'Calculator' class")
-	assert.True(t, foundAdd, "Should find 'add' method")
-	assert.True(t, foundMultiply, "Should find 'multiply' method")
-}
-
-func TestChunker_Chunk_MultipleFunctions(t *testing.T) {
-	t.Parallel()
-
-	code := `def first_function():
-    pass
-
-def second_function(x, y):
-    return x + y
-
-def third_function():
-    """Has a docstring."""
-    return 42
-`
-
-	filePath := createTempPythonFile(t, code)
-	c := NewChunker(chunking.DefaultChunkOptions())
-
-	chunks, err := c.Chunk(context.Background(), filePath)
-	require.NoError(t, err)
-
-	// Should find all three functions
-	functionNames := make(map[string]bool)
-	for _, chunk := range chunks {
-		if chunk.Type == chunking.ChunkTypeFunction {
-			functionNames[chunk.Name] = true
-		}
-	}
-
-	assert.True(t, functionNames["first_function"])
-	assert.True(t, functionNames["second_function"])
-	assert.True(t, functionNames["third_function"])
-}
-
-func TestChunker_Chunk_FileNotFound(t *testing.T) {
-	t.Parallel()
-
-	c := NewChunker(chunking.DefaultChunkOptions())
-
-	_, err := c.Chunk(context.Background(), "/nonexistent/path/file.py")
-	require.Error(t, err)
-	assert.Contains(t, err.Error(), "read file")
-}
-
-func TestChunker_Chunk_EmptyFile(t *testing.T) {
-	t.Parallel()
-
-	filePath := createTempPythonFile(t, "")
-	c := NewChunker(chunking.DefaultChunkOptions())
-
-	chunks, err := c.Chunk(context.Background(), filePath)
-	require.NoError(t, err)
-	assert.Empty(t, chunks)
-}
-
-func TestChunker_Chunk_OnlyComments(t *testing.T) {
-	t.Parallel()
-
-	code := `# This is a comment
-# Another comment
-"""
-This is a module docstring
-"""
-`
-
-	filePath := createTempPythonFile(t, code)
-	c := NewChunker(chunking.DefaultChunkOptions())
-
-	chunks, err := c.Chunk(context.Background(), filePath)
-	require.NoError(t, err)
-	// Comments and docstrings without code should not produce chunks
-	assert.Empty(t, chunks)
-}
-
-func TestChunker_Chunk_NestedClass(t *testing.T) {
-	t.Parallel()
-
-	code := `class Outer:
-    class Inner:
-        def inner_method(self):
-            pass
-
-    def outer_method(self):
-        pass
-`
-
-	filePath := createTempPythonFile(t, code)
-	c := NewChunker(chunking.DefaultChunkOptions())
-
-	chunks, err := c.Chunk(context.Background(), filePath)
-	require.NoError(t, err)
-	require.NotEmpty(t, chunks)
-
-	// Should find the Outer class at minimum
-	var foundOuter bool
-	for _, chunk := range chunks {
-		if chunk.Name == "Outer" {
-			foundOuter = true
-		}
-	}
-	assert.True(t, foundOuter, "Should find 'Outer' class")
-}
-
-func TestChunker_Chunk_Decorators(t *testing.T) {
-	t.Parallel()
-
-	code := `@staticmethod
-def static_func():
-    pass
-
-@classmethod
-def class_func(cls):
-    pass
-
-@property
-def my_property(self):
-    return self._value
-`
-
-	filePath := createTempPythonFile(t, code)
-	c := NewChunker(chunking.DefaultChunkOptions())
-
-	chunks, err := c.Chunk(context.Background(), filePath)
-	require.NoError(t, err)
-	require.NotEmpty(t, chunks)
-
-	// Should find decorated functions
-	functionNames := make(map[string]bool)
-	for _, chunk := range chunks {
-		functionNames[chunk.Name] = true
-	}
-
-	assert.True(t, functionNames["static_func"])
-	assert.True(t, functionNames["class_func"])
-	assert.True(t, functionNames["my_property"])
-}
-
-func TestChunker_Chunk_AsyncFunction(t *testing.T) {
-	t.Parallel()
-
-	code := `async def fetch_data(url):
-    """Fetches data from URL asynchronously."""
-    pass
-
-async def process_items(items):
-    for item in items:
-        await process(item)
-`
-
-	filePath := createTempPythonFile(t, code)
-	c := NewChunker(chunking.DefaultChunkOptions())
-
-	chunks, err := c.Chunk(context.Background(), filePath)
-	require.NoError(t, err)
-	require.NotEmpty(t, chunks)
-
-	// Should find async functions
-	functionNames := make(map[string]bool)
-	for _, chunk := range chunks {
-		functionNames[chunk.Name] = true
-	}
-
-	assert.True(t, functionNames["fetch_data"])
-	assert.True(t, functionNames["process_items"])
-}

internal/chunking/types.go

@@ -1,140 +0,0 @@
-// Package chunking provides AST-aware code chunking for semantic code search.
-// Chunks code files into logical units (functions, classes, methods) that preserve
-// semantic boundaries for better vector embedding and retrieval.
-package chunking
-
-import (
-	"context"
-	"fmt"
-	"strings"
-)
-
-// ChunkType represents the type of code chunk.
-type ChunkType string
-
-const (
-	// ChunkTypeFunction represents a standalone function.
-	ChunkTypeFunction ChunkType = "function"
-	// ChunkTypeMethod represents a method on a class/struct/type.
-	ChunkTypeMethod ChunkType = "method"
-	// ChunkTypeClass represents a class or struct definition.
-	ChunkTypeClass ChunkType = "class"
-	// ChunkTypeInterface represents an interface definition.
-	ChunkTypeInterface ChunkType = "interface"
-	// ChunkTypeType represents a type alias or type definition.
-	ChunkTypeType ChunkType = "type"
-	// ChunkTypeConst represents constant declarations.
-	ChunkTypeConst ChunkType = "const"
-	// ChunkTypeVar represents variable declarations.
-	ChunkTypeVar ChunkType = "var"
-)
-
-// Language represents a programming language.
-type Language string
-
-const (
-	// LanguageGo represents the Go programming language.
-	LanguageGo Language = "go"
-	// LanguagePython represents the Python programming language.
-	LanguagePython Language = "python"
-	// LanguageTypeScript represents the TypeScript programming language.
-	LanguageTypeScript Language = "typescript"
-	// LanguageJavaScript represents the JavaScript programming language.
-	LanguageJavaScript Language = "javascript"
-)
-
-// Chunk represents a semantic code chunk with AST-derived boundaries.
-type Chunk struct {
-	Metadata   map[string]interface{}
-	FilePath   string
-	Language   Language
-	Type       ChunkType
-	Name       string
-	ParentName string
-	Content    string
-	Signature  string
-	DocComment string
-	StartLine  int
-	EndLine    int
-}
-
-// Identifier returns a human-readable identifier for this chunk.
-// Format: "ParentName.Name" for methods, "Name" for top-level.
-func (c *Chunk) Identifier() string {
-	if c.ParentName != "" {
-		return fmt.Sprintf("%s.%s", c.ParentName, c.Name)
-	}
-	return c.Name
-}
-
-// LineRange returns a human-readable line range.
-// Format: "L123-L456"
-func (c *Chunk) LineRange() string {
-	return fmt.Sprintf("L%d-L%d", c.StartLine, c.EndLine)
-}
-
-// SearchableContent returns content optimized for semantic search.
-// Combines signature, doc comment, and content in a structured format.
-func (c *Chunk) SearchableContent() string {
-	var parts []string
-
-	// Include signature for functions/methods
-	if c.Signature != "" {
-		parts = append(parts, c.Signature)
-	}
-
-	// Include doc comment
-	if c.DocComment != "" {
-		parts = append(parts, c.DocComment)
-	}
-
-	// Include actual content
-	if c.Content != "" {
-		parts = append(parts, c.Content)
-	}
-
-	return strings.Join(parts, "\n\n")
-}
-
-// Chunker is the interface for language-specific code chunkers.
-type Chunker interface {
-	// Chunk parses a source file and returns semantic code chunks.
-	// Returns an error if the file cannot be parsed or read.
-	Chunk(ctx context.Context, filePath string) ([]Chunk, error)
-
-	// Language returns the language this chunker supports.
-	Language() Language
-
-	// SupportedExtensions returns file extensions this chunker handles.
-	// Example: []string{".go"} for Go chunker
-	SupportedExtensions() []string
-}
-
-// ChunkOptions provides options for chunking behavior.
-type ChunkOptions struct {
-	// MaxChunkSize is the maximum size of a chunk in bytes.
-	// Chunks larger than this will be split (respecting boundaries where possible).
-	// 0 means no limit.
-	MaxChunkSize int
-
-	// IncludeDocComments controls whether to include documentation comments.
-	IncludeDocComments bool
-
-	// IncludePrivate controls whether to include private/unexported symbols.
-	IncludePrivate bool
-
-	// MinLines is the minimum number of lines for a chunk to be included.
-	// Chunks smaller than this will be skipped.
-	// 0 means no minimum.
-	MinLines int
-}
-
-// DefaultChunkOptions returns sensible default options.
-func DefaultChunkOptions() ChunkOptions {
-	return ChunkOptions{
-		MaxChunkSize:       8192, // ~8KB per chunk (well under token limit)
-		IncludeDocComments: true,
-		IncludePrivate:     true, // Include all symbols for comprehensive search
-		MinLines:           0,    // No minimum - include even single-line functions
-	}
-}

internal/chunking/types_test.go

@@ -1,213 +0,0 @@
-package chunking
-
-import (
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-)
-
-// =============================================================================
-// TESTS FOR Chunk METHODS
-// =============================================================================
-
-func TestChunk_Identifier(t *testing.T) {
-	tests := []struct {
-		name     string
-		expected string
-		chunk    Chunk
-	}{
-		// ===== GOOD CASES =====
-		{
-			name: "top-level function",
-			chunk: Chunk{
-				Name:       "MyFunction",
-				ParentName: "",
-			},
-			expected: "MyFunction",
-		},
-		{
-			name: "method with parent",
-			chunk: Chunk{
-				Name:       "Process",
-				ParentName: "Handler",
-			},
-			expected: "Handler.Process",
-		},
-		{
-			name: "nested method",
-			chunk: Chunk{
-				Name:       "Validate",
-				ParentName: "UserService",
-			},
-			expected: "UserService.Validate",
-		},
-
-		// ===== EDGE CASES =====
-		{
-			name: "empty name",
-			chunk: Chunk{
-				Name:       "",
-				ParentName: "",
-			},
-			expected: "",
-		},
-		{
-			name: "parent but no name",
-			chunk: Chunk{
-				Name:       "",
-				ParentName: "Parent",
-			},
-			expected: "Parent.",
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			result := tt.chunk.Identifier()
-			assert.Equal(t, tt.expected, result)
-		})
-	}
-}
-
-func TestChunk_LineRange(t *testing.T) {
-	tests := []struct {
-		name     string
-		expected string
-		chunk    Chunk
-	}{
-		// ===== GOOD CASES =====
-		{
-			name: "single line",
-			chunk: Chunk{
-				StartLine: 10,
-				EndLine:   10,
-			},
-			expected: "L10-L10",
-		},
-		{
-			name: "multi-line",
-			chunk: Chunk{
-				StartLine: 25,
-				EndLine:   50,
-			},
-			expected: "L25-L50",
-		},
-
-		// ===== EDGE CASES =====
-		{
-			name: "line 1",
-			chunk: Chunk{
-				StartLine: 1,
-				EndLine:   5,
-			},
-			expected: "L1-L5",
-		},
-		{
-			name: "large line numbers",
-			chunk: Chunk{
-				StartLine: 1000,
-				EndLine:   2500,
-			},
-			expected: "L1000-L2500",
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			result := tt.chunk.LineRange()
-			assert.Equal(t, tt.expected, result)
-		})
-	}
-}
-
-func TestChunk_SearchableContent(t *testing.T) {
-	tests := []struct {
-		name     string
-		contains []string
-		chunk    Chunk
-	}{
-		// ===== GOOD CASES =====
-		{
-			name: "full chunk with all fields",
-			chunk: Chunk{
-				Signature:  "func ProcessData(input []byte) error",
-				DocComment: "// ProcessData handles incoming data",
-				Content:    "func ProcessData(input []byte) error {\n\treturn nil\n}",
-			},
-			contains: []string{
-				"func ProcessData(input []byte) error",
-				"ProcessData handles incoming data",
-				"return nil",
-			},
-		},
-		{
-			name: "only signature",
-			chunk: Chunk{
-				Signature: "func Hello()",
-			},
-			contains: []string{"func Hello()"},
-		},
-		{
-			name: "only content",
-			chunk: Chunk{
-				Content: "some code here",
-			},
-			contains: []string{"some code here"},
-		},
-
-		// ===== EDGE CASES =====
-		{
-			name:     "empty chunk",
-			chunk:    Chunk{},
-			contains: []string{},
-		},
-		{
-			name: "only doc comment",
-			chunk: Chunk{
-				DocComment: "// Important documentation",
-			},
-			contains: []string{"Important documentation"},
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			result := tt.chunk.SearchableContent()
-			for _, expected := range tt.contains {
-				assert.Contains(t, result, expected)
-			}
-		})
-	}
-}
-
-func TestDefaultChunkOptions(t *testing.T) {
-	opts := DefaultChunkOptions()
-
-	assert.Greater(t, opts.MaxChunkSize, 0, "MaxChunkSize should be positive")
-	assert.True(t, opts.IncludeDocComments, "IncludeDocComments should be true by default")
-	assert.True(t, opts.IncludePrivate, "IncludePrivate should be true by default")
-	assert.Equal(t, 0, opts.MinLines, "MinLines should be 0 by default")
-}
-
-// =============================================================================
-// TESTS FOR ChunkType AND Language CONSTANTS
-// =============================================================================
-
-func TestChunkType_Values(t *testing.T) {
-	// Ensure all chunk types have expected values
-	assert.Equal(t, ChunkType("function"), ChunkTypeFunction)
-	assert.Equal(t, ChunkType("method"), ChunkTypeMethod)
-	assert.Equal(t, ChunkType("class"), ChunkTypeClass)
-	assert.Equal(t, ChunkType("interface"), ChunkTypeInterface)
-	assert.Equal(t, ChunkType("type"), ChunkTypeType)
-	assert.Equal(t, ChunkType("const"), ChunkTypeConst)
-	assert.Equal(t, ChunkType("var"), ChunkTypeVar)
-}
-
-func TestLanguage_Values(t *testing.T) {
-	// Ensure all language types have expected values
-	assert.Equal(t, Language("go"), LanguageGo)
-	assert.Equal(t, Language("python"), LanguagePython)
-	assert.Equal(t, Language("typescript"), LanguageTypeScript)
-	assert.Equal(t, Language("javascript"), LanguageJavaScript)
-}

internal/chunking/typescript/chunker.go

@@ -1,403 +0,0 @@
-// Package typescript provides AST-aware chunking for TypeScript and JavaScript source files using tree-sitter.
-package typescript
-
-import (
-	"context"
-	"fmt"
-	"os"
-	"strings"
-
-	sitter "github.com/smacker/go-tree-sitter"
-	"github.com/smacker/go-tree-sitter/typescript/typescript"
-
-	"github.com/lukaszraczylo/claude-mnemonic/internal/chunking"
-)
-
-// Chunker implements AST-aware chunking for TypeScript/JavaScript files.
-type Chunker struct {
-	parser  *sitter.Parser
-	options chunking.ChunkOptions
-}
-
-// NewChunker creates a new TypeScript chunker.
-func NewChunker(options chunking.ChunkOptions) *Chunker {
-	parser := sitter.NewParser()
-	parser.SetLanguage(typescript.GetLanguage())
-
-	return &Chunker{
-		options: options,
-		parser:  parser,
-	}
-}
-
-// Language returns the language this chunker supports.
-func (c *Chunker) Language() chunking.Language {
-	return chunking.LanguageTypeScript
-}
-
-// SupportedExtensions returns the file extensions this chunker handles.
-func (c *Chunker) SupportedExtensions() []string {
-	return []string{".ts", ".tsx", ".js", ".jsx"}
-}
-
-// Chunk parses a TypeScript/JavaScript source file and returns semantic code chunks.
-func (c *Chunker) Chunk(ctx context.Context, filePath string) ([]chunking.Chunk, error) {
-	// Read file content
-	content, err := os.ReadFile(filePath)
-	if err != nil {
-		return nil, fmt.Errorf("read file: %w", err)
-	}
-
-	// Parse the file
-	tree, err := c.parser.ParseCtx(ctx, nil, content)
-	if err != nil {
-		return nil, fmt.Errorf("parse TypeScript file: %w", err)
-	}
-	defer tree.Close()
-
-	sourceLines := strings.Split(string(content), "\n")
-	chunks := make([]chunking.Chunk, 0)
-
-	// Walk the AST and extract chunks
-	c.walkNode(tree.RootNode(), content, sourceLines, filePath, "", &chunks)
-
-	return chunks, nil
-}
-
-// walkNode recursively walks the tree-sitter AST and extracts chunks.
-func (c *Chunker) walkNode(node *sitter.Node, source []byte, sourceLines []string, filePath string, parentName string, chunks *[]chunking.Chunk) {
-	nodeType := node.Type()
-
-	switch nodeType {
-	case "function_declaration":
-		chunk := c.extractFunction(node, source, sourceLines, filePath, parentName)
-		if chunk != nil {
-			*chunks = append(*chunks, *chunk)
-		}
-
-	case "method_definition":
-		chunk := c.extractMethod(node, source, sourceLines, filePath, parentName)
-		if chunk != nil {
-			*chunks = append(*chunks, *chunk)
-		}
-
-	case "arrow_function", "function_expression":
-		// Handle arrow functions and function expressions assigned to variables
-		chunk := c.extractFunctionExpression(node, source, sourceLines, filePath, parentName)
-		if chunk != nil {
-			*chunks = append(*chunks, *chunk)
-		}
-
-	case "class_declaration":
-		chunk := c.extractClass(node, source, sourceLines, filePath)
-		if chunk != nil {
-			*chunks = append(*chunks, *chunk)
-
-			// Walk class body to find methods
-			for i := 0; i < int(node.ChildCount()); i++ {
-				child := node.Child(i)
-				if child.Type() == "class_body" {
-					c.walkNode(child, source, sourceLines, filePath, chunk.Name, chunks)
-				}
-			}
-		}
-		return // Don't walk children again
-
-	case "interface_declaration":
-		chunk := c.extractInterface(node, source, sourceLines, filePath)
-		if chunk != nil {
-			*chunks = append(*chunks, *chunk)
-		}
-
-	case "type_alias_declaration":
-		chunk := c.extractTypeAlias(node, source, sourceLines, filePath)
-		if chunk != nil {
-			*chunks = append(*chunks, *chunk)
-		}
-	}
-
-	// Walk all children
-	for i := 0; i < int(node.ChildCount()); i++ {
-		c.walkNode(node.Child(i), source, sourceLines, filePath, parentName, chunks)
-	}
-}
-
-// extractFunction extracts a function declaration.
-func (c *Chunker) extractFunction(node *sitter.Node, source []byte, sourceLines []string, filePath string, parentName string) *chunking.Chunk {
-	name := c.findChildContent(node, "identifier", source)
-	if name == "" {
-		return nil
-	}
-
-	startLine := int(node.StartPoint().Row) + 1
-	endLine := int(node.EndPoint().Row) + 1
-
-	chunk := &chunking.Chunk{
-		FilePath:   filePath,
-		Language:   chunking.LanguageTypeScript,
-		Type:       chunking.ChunkTypeFunction,
-		Name:       name,
-		ParentName: parentName,
-		StartLine:  startLine,
-		EndLine:    endLine,
-		Content:    c.extractLines(sourceLines, startLine, endLine),
-		Signature:  c.extractFunctionSignature(node, source, sourceLines),
-	}
-
-	// Extract JSDoc comment
-	if c.options.IncludeDocComments {
-		chunk.DocComment = c.extractComment(node, source)
-	}
-
-	return chunk
-}
-
-// extractMethod extracts a method definition from a class.
-func (c *Chunker) extractMethod(node *sitter.Node, source []byte, sourceLines []string, filePath string, parentName string) *chunking.Chunk {
-	name := c.findChildContent(node, "property_identifier", source)
-	if name == "" {
-		return nil
-	}
-
-	// Skip private methods if configured
-	if !c.options.IncludePrivate && strings.HasPrefix(name, "_") {
-		return nil
-	}
-
-	startLine := int(node.StartPoint().Row) + 1
-	endLine := int(node.EndPoint().Row) + 1
-
-	chunk := &chunking.Chunk{
-		FilePath:   filePath,
-		Language:   chunking.LanguageTypeScript,
-		Type:       chunking.ChunkTypeMethod,
-		Name:       name,
-		ParentName: parentName,
-		StartLine:  startLine,
-		EndLine:    endLine,
-		Content:    c.extractLines(sourceLines, startLine, endLine),
-		Signature:  c.extractMethodSignature(node, source, sourceLines),
-	}
-
-	// Extract JSDoc comment
-	if c.options.IncludeDocComments {
-		chunk.DocComment = c.extractComment(node, source)
-	}
-
-	return chunk
-}
-
-// extractFunctionExpression extracts arrow functions and function expressions.
-func (c *Chunker) extractFunctionExpression(node *sitter.Node, source []byte, sourceLines []string, filePath string, parentName string) *chunking.Chunk {
-	// Try to find the variable name from parent
-	parent := node.Parent()
-	if parent == nil {
-		return nil
-	}
-
-	var name string
-	if parent.Type() == "variable_declarator" {
-		name = c.findChildContent(parent, "identifier", source)
-	} else if parent.Type() == "assignment_expression" {
-		// Handle const foo = () => {}
-		for i := 0; i < int(parent.ChildCount()); i++ {
-			child := parent.Child(i)
-			if child.Type() == "identifier" || child.Type() == "member_expression" {
-				name = child.Content(source)
-				break
-			}
-		}
-	}
-
-	if name == "" {
-		return nil // Anonymous function, skip
-	}
-
-	startLine := int(node.StartPoint().Row) + 1
-	endLine := int(node.EndPoint().Row) + 1
-
-	chunk := &chunking.Chunk{
-		FilePath:   filePath,
-		Language:   chunking.LanguageTypeScript,
-		Type:       chunking.ChunkTypeFunction,
-		Name:       name,
-		ParentName: parentName,
-		StartLine:  startLine,
-		EndLine:    endLine,
-		Content:    c.extractLines(sourceLines, startLine, endLine),
-	}
-
-	return chunk
-}
-
-// extractClass extracts a class declaration.
-func (c *Chunker) extractClass(node *sitter.Node, source []byte, sourceLines []string, filePath string) *chunking.Chunk {
-	name := c.findChildContent(node, "type_identifier", source)
-	if name == "" {
-		return nil
-	}
-
-	startLine := int(node.StartPoint().Row) + 1
-	endLine := int(node.EndPoint().Row) + 1
-
-	chunk := &chunking.Chunk{
-		FilePath:  filePath,
-		Language:  chunking.LanguageTypeScript,
-		Type:      chunking.ChunkTypeClass,
-		Name:      name,
-		StartLine: startLine,
-		EndLine:   endLine,
-		Content:   c.extractLines(sourceLines, startLine, endLine),
-		Signature: c.extractClassSignature(node, source, sourceLines),
-	}
-
-	// Extract JSDoc comment
-	if c.options.IncludeDocComments {
-		chunk.DocComment = c.extractComment(node, source)
-	}
-
-	return chunk
-}
-
-// extractInterface extracts an interface declaration.
-func (c *Chunker) extractInterface(node *sitter.Node, source []byte, sourceLines []string, filePath string) *chunking.Chunk {
-	name := c.findChildContent(node, "type_identifier", source)
-	if name == "" {
-		return nil
-	}
-
-	startLine := int(node.StartPoint().Row) + 1
-	endLine := int(node.EndPoint().Row) + 1
-
-	chunk := &chunking.Chunk{
-		FilePath:  filePath,
-		Language:  chunking.LanguageTypeScript,
-		Type:      chunking.ChunkTypeInterface,
-		Name:      name,
-		StartLine: startLine,
-		EndLine:   endLine,
-		Content:   c.extractLines(sourceLines, startLine, endLine),
-	}
-
-	// Extract JSDoc comment
-	if c.options.IncludeDocComments {
-		chunk.DocComment = c.extractComment(node, source)
-	}
-
-	return chunk
-}
-
-// extractTypeAlias extracts a type alias declaration.
-func (c *Chunker) extractTypeAlias(node *sitter.Node, source []byte, sourceLines []string, filePath string) *chunking.Chunk {
-	name := c.findChildContent(node, "type_identifier", source)
-	if name == "" {
-		return nil
-	}
-
-	startLine := int(node.StartPoint().Row) + 1
-	endLine := int(node.EndPoint().Row) + 1
-
-	chunk := &chunking.Chunk{
-		FilePath:  filePath,
-		Language:  chunking.LanguageTypeScript,
-		Type:      chunking.ChunkTypeType,
-		Name:      name,
-		StartLine: startLine,
-		EndLine:   endLine,
-		Content:   c.extractLines(sourceLines, startLine, endLine),
-	}
-
-	return chunk
-}
-
-// findChildContent finds the first child of the given type and returns its content.
-func (c *Chunker) findChildContent(node *sitter.Node, childType string, source []byte) string {
-	for i := 0; i < int(node.ChildCount()); i++ {
-		child := node.Child(i)
-		if child.Type() == childType {
-			return child.Content(source)
-		}
-	}
-	return ""
-}
-
-// extractFunctionSignature extracts the function signature.
-func (c *Chunker) extractFunctionSignature(node *sitter.Node, source []byte, sourceLines []string) string {
-	startLine := int(node.StartPoint().Row) + 1
-
-	// Find the opening brace of the body
-	for i := 0; i < int(node.ChildCount()); i++ {
-		child := node.Child(i)
-		if child.Type() == "statement_block" {
-			endLine := int(child.StartPoint().Row) + 1
-			return strings.TrimSpace(c.extractLines(sourceLines, startLine, endLine-1))
-		}
-	}
-
-	// Fallback: just return first line
-	return strings.TrimSpace(c.extractLines(sourceLines, startLine, startLine))
-}
-
-// extractMethodSignature extracts the method signature.
-func (c *Chunker) extractMethodSignature(node *sitter.Node, source []byte, sourceLines []string) string {
-	startLine := int(node.StartPoint().Row) + 1
-
-	// Find the opening brace of the body
-	for i := 0; i < int(node.ChildCount()); i++ {
-		child := node.Child(i)
-		if child.Type() == "statement_block" {
-			endLine := int(child.StartPoint().Row) + 1
-			return strings.TrimSpace(c.extractLines(sourceLines, startLine, endLine-1))
-		}
-	}
-
-	return strings.TrimSpace(c.extractLines(sourceLines, startLine, startLine))
-}
-
-// extractClassSignature extracts the class declaration line.
-func (c *Chunker) extractClassSignature(node *sitter.Node, source []byte, sourceLines []string) string {
-	startLine := int(node.StartPoint().Row) + 1
-
-	// Find the opening brace of the class body
-	for i := 0; i < int(node.ChildCount()); i++ {
-		child := node.Child(i)
-		if child.Type() == "class_body" {
-			endLine := int(child.StartPoint().Row) + 1
-			return strings.TrimSpace(c.extractLines(sourceLines, startLine, endLine-1))
-		}
-	}
-
-	return strings.TrimSpace(c.extractLines(sourceLines, startLine, startLine))
-}
-
-// extractComment extracts JSDoc or other comments from a node.
-func (c *Chunker) extractComment(node *sitter.Node, source []byte) string {
-	// Check previous sibling for comment
-	prevSibling := node.PrevSibling()
-	if prevSibling != nil && prevSibling.Type() == "comment" {
-		comment := prevSibling.Content(source)
-		// Remove comment markers
-		comment = strings.TrimPrefix(comment, "/**")
-		comment = strings.TrimPrefix(comment, "/*")
-		comment = strings.TrimSuffix(comment, "*/")
-		comment = strings.TrimPrefix(comment, "//")
-		return strings.TrimSpace(comment)
-	}
-
-	return ""
-}
-
-// extractLines extracts a range of lines from source (1-indexed, inclusive).
-func (c *Chunker) extractLines(lines []string, start, end int) string {
-	if start < 1 || end < start || start > len(lines) {
-		return ""
-	}
-
-	startIdx := start - 1
-	endIdx := end
-	if endIdx > len(lines) {
-		endIdx = len(lines)
-	}
-
-	return strings.Join(lines[startIdx:endIdx], "\n")
-}

internal/chunking/typescript/chunker_test.go

@@ -1,398 +0,0 @@
-package typescript
-
-import (
-	"context"
-	"os"
-	"path/filepath"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-
-	"github.com/lukaszraczylo/claude-mnemonic/internal/chunking"
-)
-
-// =============================================================================
-// TEST HELPERS
-// =============================================================================
-
-func createTempTSFile(t *testing.T, content string, ext string) string {
-	t.Helper()
-
-	tmpDir := t.TempDir()
-	filePath := filepath.Join(tmpDir, "test"+ext)
-
-	err := os.WriteFile(filePath, []byte(content), 0600)
-	require.NoError(t, err)
-
-	return filePath
-}
-
-// =============================================================================
-// TESTS FOR Chunker
-// =============================================================================
-
-func TestNewChunker(t *testing.T) {
-	t.Parallel()
-
-	opts := chunking.DefaultChunkOptions()
-	c := NewChunker(opts)
-
-	assert.NotNil(t, c)
-	assert.NotNil(t, c.parser)
-}
-
-func TestChunker_Language(t *testing.T) {
-	t.Parallel()
-
-	c := NewChunker(chunking.DefaultChunkOptions())
-
-	assert.Equal(t, chunking.LanguageTypeScript, c.Language())
-}
-
-func TestChunker_SupportedExtensions(t *testing.T) {
-	t.Parallel()
-
-	c := NewChunker(chunking.DefaultChunkOptions())
-	exts := c.SupportedExtensions()
-
-	assert.Contains(t, exts, ".ts")
-	assert.Contains(t, exts, ".tsx")
-	assert.Contains(t, exts, ".js")
-	assert.Contains(t, exts, ".jsx")
-}
-
-func TestChunker_Chunk_SimpleFunction(t *testing.T) {
-	t.Parallel()
-
-	code := `function greet(name: string): string {
-    return "Hello, " + name + "!";
-}
-`
-
-	filePath := createTempTSFile(t, code, ".ts")
-	c := NewChunker(chunking.DefaultChunkOptions())
-
-	chunks, err := c.Chunk(context.Background(), filePath)
-	require.NoError(t, err)
-	require.NotEmpty(t, chunks)
-
-	// Should find the greet function
-	var foundGreet bool
-	for _, chunk := range chunks {
-		if chunk.Name == "greet" {
-			foundGreet = true
-			assert.Equal(t, chunking.ChunkTypeFunction, chunk.Type)
-			assert.Equal(t, chunking.LanguageTypeScript, chunk.Language)
-			assert.Contains(t, chunk.Content, "function greet")
-		}
-	}
-	assert.True(t, foundGreet, "Should find 'greet' function")
-}
-
-func TestChunker_Chunk_ClassWithMethods(t *testing.T) {
-	t.Parallel()
-
-	code := `class Calculator {
-    add(a: number, b: number): number {
-        return a + b;
-    }
-
-    multiply(a: number, b: number): number {
-        return a * b;
-    }
-}
-`
-
-	filePath := createTempTSFile(t, code, ".ts")
-	c := NewChunker(chunking.DefaultChunkOptions())
-
-	chunks, err := c.Chunk(context.Background(), filePath)
-	require.NoError(t, err)
-	require.NotEmpty(t, chunks)
-
-	// Should find the Calculator class and its methods
-	var foundClass, foundAdd, foundMultiply bool
-	for _, chunk := range chunks {
-		switch chunk.Name {
-		case "Calculator":
-			foundClass = true
-			assert.Equal(t, chunking.ChunkTypeClass, chunk.Type)
-		case "add":
-			foundAdd = true
-			assert.Equal(t, chunking.ChunkTypeMethod, chunk.Type)
-			assert.Equal(t, "Calculator", chunk.ParentName)
-		case "multiply":
-			foundMultiply = true
-			assert.Equal(t, chunking.ChunkTypeMethod, chunk.Type)
-			assert.Equal(t, "Calculator", chunk.ParentName)
-		}
-	}
-
-	assert.True(t, foundClass, "Should find 'Calculator' class")
-	assert.True(t, foundAdd, "Should find 'add' method")
-	assert.True(t, foundMultiply, "Should find 'multiply' method")
-}
-
-func TestChunker_Chunk_Interface(t *testing.T) {
-	t.Parallel()
-
-	code := `interface User {
-    id: number;
-    name: string;
-    email: string;
-}
-
-interface Authenticator {
-    login(username: string, password: string): boolean;
-    logout(): void;
-}
-`
-
-	filePath := createTempTSFile(t, code, ".ts")
-	c := NewChunker(chunking.DefaultChunkOptions())
-
-	chunks, err := c.Chunk(context.Background(), filePath)
-	require.NoError(t, err)
-	require.NotEmpty(t, chunks)
-
-	// Should find interfaces
-	interfaceNames := make(map[string]bool)
-	for _, chunk := range chunks {
-		if chunk.Type == chunking.ChunkTypeInterface {
-			interfaceNames[chunk.Name] = true
-		}
-	}
-
-	assert.True(t, interfaceNames["User"])
-	assert.True(t, interfaceNames["Authenticator"])
-}
-
-func TestChunker_Chunk_TypeAlias(t *testing.T) {
-	t.Parallel()
-
-	code := `type UserID = string;
-
-type Handler = (event: Event) => void;
-
-type Result<T> = { success: true; data: T } | { success: false; error: Error };
-`
-
-	filePath := createTempTSFile(t, code, ".ts")
-	c := NewChunker(chunking.DefaultChunkOptions())
-
-	chunks, err := c.Chunk(context.Background(), filePath)
-	require.NoError(t, err)
-	require.NotEmpty(t, chunks)
-
-	// Should find type aliases
-	typeNames := make(map[string]bool)
-	for _, chunk := range chunks {
-		if chunk.Type == chunking.ChunkTypeType {
-			typeNames[chunk.Name] = true
-		}
-	}
-
-	assert.True(t, typeNames["UserID"])
-	assert.True(t, typeNames["Handler"])
-	assert.True(t, typeNames["Result"])
-}
-
-func TestChunker_Chunk_ArrowFunction(t *testing.T) {
-	t.Parallel()
-
-	code := `const add = (a: number, b: number): number => a + b;
-
-const greet = (name: string): string => {
-    return "Hello, " + name;
-};
-`
-
-	filePath := createTempTSFile(t, code, ".ts")
-	c := NewChunker(chunking.DefaultChunkOptions())
-
-	_, err := c.Chunk(context.Background(), filePath)
-	require.NoError(t, err)
-	// Arrow functions may or may not be captured depending on AST structure
-	// At minimum, no error should occur
-}
-
-func TestChunker_Chunk_FileNotFound(t *testing.T) {
-	t.Parallel()
-
-	c := NewChunker(chunking.DefaultChunkOptions())
-
-	_, err := c.Chunk(context.Background(), "/nonexistent/path/file.ts")
-	require.Error(t, err)
-	assert.Contains(t, err.Error(), "read file")
-}
-
-func TestChunker_Chunk_EmptyFile(t *testing.T) {
-	t.Parallel()
-
-	filePath := createTempTSFile(t, "", ".ts")
-	c := NewChunker(chunking.DefaultChunkOptions())
-
-	chunks, err := c.Chunk(context.Background(), filePath)
-	require.NoError(t, err)
-	assert.Empty(t, chunks)
-}
-
-func TestChunker_Chunk_OnlyComments(t *testing.T) {
-	t.Parallel()
-
-	code := `// This is a comment
-/* Another comment */
-/**
- * JSDoc comment
- */
-`
-
-	filePath := createTempTSFile(t, code, ".ts")
-	c := NewChunker(chunking.DefaultChunkOptions())
-
-	chunks, err := c.Chunk(context.Background(), filePath)
-	require.NoError(t, err)
-	// Comments without code should not produce chunks
-	assert.Empty(t, chunks)
-}
-
-func TestChunker_Chunk_AsyncFunction(t *testing.T) {
-	t.Parallel()
-
-	code := `async function fetchData(url: string): Promise<any> {
-    const response = await fetch(url);
-    return response.json();
-}
-
-async function processItems(items: string[]): Promise<void> {
-    for (const item of items) {
-        await process(item);
-    }
-}
-`
-
-	filePath := createTempTSFile(t, code, ".ts")
-	c := NewChunker(chunking.DefaultChunkOptions())
-
-	chunks, err := c.Chunk(context.Background(), filePath)
-	require.NoError(t, err)
-	require.NotEmpty(t, chunks)
-
-	// Should find async functions
-	functionNames := make(map[string]bool)
-	for _, chunk := range chunks {
-		if chunk.Type == chunking.ChunkTypeFunction {
-			functionNames[chunk.Name] = true
-		}
-	}
-
-	assert.True(t, functionNames["fetchData"])
-	assert.True(t, functionNames["processItems"])
-}
-
-func TestChunker_Chunk_ExportedFunction(t *testing.T) {
-	t.Parallel()
-
-	code := `export function publicFunction(): void {
-    console.log("public");
-}
-
-export default function defaultExport(): void {
-    console.log("default");
-}
-`
-
-	filePath := createTempTSFile(t, code, ".ts")
-	c := NewChunker(chunking.DefaultChunkOptions())
-
-	chunks, err := c.Chunk(context.Background(), filePath)
-	require.NoError(t, err)
-	require.NotEmpty(t, chunks)
-
-	// Should find exported functions
-	functionNames := make(map[string]bool)
-	for _, chunk := range chunks {
-		if chunk.Type == chunking.ChunkTypeFunction {
-			functionNames[chunk.Name] = true
-		}
-	}
-
-	assert.True(t, functionNames["publicFunction"])
-	assert.True(t, functionNames["defaultExport"])
-}
-
-func TestChunker_Chunk_JSXFile(t *testing.T) {
-	t.Parallel()
-
-	code := `function Button({ label }: { label: string }) {
-    return <button>{label}</button>;
-}
-
-function App() {
-    return (
-        <div>
-            <Button label="Click me" />
-        </div>
-    );
-}
-`
-
-	filePath := createTempTSFile(t, code, ".tsx")
-	c := NewChunker(chunking.DefaultChunkOptions())
-
-	chunks, err := c.Chunk(context.Background(), filePath)
-	require.NoError(t, err)
-	require.NotEmpty(t, chunks)
-
-	// Should find JSX components as functions
-	functionNames := make(map[string]bool)
-	for _, chunk := range chunks {
-		if chunk.Type == chunking.ChunkTypeFunction {
-			functionNames[chunk.Name] = true
-		}
-	}
-
-	assert.True(t, functionNames["Button"])
-	assert.True(t, functionNames["App"])
-}
-
-func TestChunker_Chunk_JavaScript(t *testing.T) {
-	t.Parallel()
-
-	code := `function simpleFunc() {
-    return 42;
-}
-
-class MyClass {
-    constructor() {
-        this.value = 0;
-    }
-
-    getValue() {
-        return this.value;
-    }
-}
-`
-
-	filePath := createTempTSFile(t, code, ".js")
-	c := NewChunker(chunking.DefaultChunkOptions())
-
-	chunks, err := c.Chunk(context.Background(), filePath)
-	require.NoError(t, err)
-	require.NotEmpty(t, chunks)
-
-	// Should find JavaScript functions and classes
-	var foundFunc, foundClass bool
-	for _, chunk := range chunks {
-		if chunk.Name == "simpleFunc" {
-			foundFunc = true
-		}
-		if chunk.Name == "MyClass" {
-			foundClass = true
-		}
-	}
-
-	assert.True(t, foundFunc, "Should find 'simpleFunc' function")
-	assert.True(t, foundClass, "Should find 'MyClass' class")
-}

internal/config/config.go

@@ -36,42 +36,28 @@ var CriticalConcepts = []string{
 }
 
 // Config holds the application configuration.
-// Field order optimized for memory alignment (fieldalignment).
 type Config struct {
-	ContextFullField          string   `json:"context_full_field"`
-	DBPath                    string   `json:"db_path"`
-	Model                     string   `json:"model"`
-	ClaudeCodePath            string   `json:"claude_code_path"`
-	EmbeddingModel            string   `json:"embedding_model"`
-	VectorStorageStrategy     string   `json:"vector_storage_strategy"`
-	ContextObsConcepts        []string `json:"context_obs_concepts"`
-	ContextObsTypes           []string `json:"context_obs_types"`
-	ContextFullCount          int      `json:"context_full_count"`
-	GraphBranchFactor         int      `json:"graph_branch_factor"`
-	GraphEdgeWeight           float64  `json:"graph_edge_weight"`
-	ContextRelevanceThreshold float64  `json:"context_relevance_threshold"`
-	RerankingCandidates       int      `json:"reranking_candidates"`
-	WorkerPort                int      `json:"worker_port"`
-	RerankingMinImprovement   float64  `json:"reranking_min_improvement"`
-	ContextObservations       int      `json:"context_observations"`
-	ContextMaxPromptResults   int      `json:"context_max_prompt_results"`
-	ContextSessionCount       int      `json:"context_session_count"`
-	MaxConns                  int      `json:"max_conns"`
-	RerankingAlpha            float64  `json:"reranking_alpha"`
-	GraphMaxHops              int      `json:"graph_max_hops"`
-	RerankingResults          int      `json:"reranking_results"`
-	GraphRebuildIntervalMin   int      `json:"graph_rebuild_interval_min"`
-	HubThreshold              int      `json:"hub_threshold"`
-	ObservationRetentionDays  int      `json:"observation_retention_days"`
-	MaintenanceIntervalHours  int      `json:"maintenance_interval_hours"`
-	ContextShowWorkTokens     bool     `json:"context_show_work_tokens"`
-	ContextShowReadTokens     bool     `json:"context_show_read_tokens"`
-	RerankingPureMode         bool     `json:"reranking_pure_mode"`
-	GraphEnabled              bool     `json:"graph_enabled"`
-	MaintenanceEnabled        bool     `json:"maintenance_enabled"`
-	RerankingEnabled          bool     `json:"reranking_enabled"`
-	ContextShowLastSummary    bool     `json:"context_show_last_summary"`
-	CleanupStaleObservations  bool     `json:"cleanup_stale_observations"`
+	// Worker settings
+	WorkerPort int `json:"worker_port"`
+
+	// Database settings
+	DBPath   string `json:"db_path"`
+	MaxConns int    `json:"max_conns"`
+
+	// SDK Agent settings
+	Model          string `json:"model"`
+	ClaudeCodePath string `json:"claude_code_path"`
+
+	// Context injection settings
+	ContextObservations    int      `json:"context_observations"`
+	ContextFullCount       int      `json:"context_full_count"`
+	ContextSessionCount    int      `json:"context_session_count"`
+	ContextShowReadTokens  bool     `json:"context_show_read_tokens"`
+	ContextShowWorkTokens  bool     `json:"context_show_work_tokens"`
+	ContextFullField       string   `json:"context_full_field"`
+	ContextShowLastSummary bool     `json:"context_show_last_summary"`
+	ContextObsTypes        []string `json:"context_obs_types"`
+	ContextObsConcepts     []string `json:"context_obs_concepts"`
 }
 
 var (
@@ -97,9 +83,8 @@ func SettingsPath() string {
 }
 
 // EnsureDataDir creates the data directory if it doesn't exist.
-// Uses 0700 permissions (owner-only) for security.
 func EnsureDataDir() error {
-	return os.MkdirAll(DataDir(), 0700)
+	return os.MkdirAll(DataDir(), 0750)
 }
 
 // EnsureSettings creates a default settings file if it doesn't exist.
@@ -134,44 +119,22 @@ func EnsureAll() error {
 	return nil
 }
 
-// DefaultEmbeddingModel is the default embedding model to use.
-const DefaultEmbeddingModel = "bge-v1.5"
-
 // Default returns a Config with default values.
 func Default() *Config {
 	return &Config{
-		WorkerPort:                DefaultWorkerPort,
-		DBPath:                    DBPath(),
-		MaxConns:                  4,
-		Model:                     DefaultModel,
-		EmbeddingModel:            DefaultEmbeddingModel,
-		RerankingEnabled:          true,  // Enable by default for improved relevance
-		RerankingCandidates:       100,   // Retrieve top 100 candidates
-		RerankingResults:          10,    // Return top 10 after reranking
-		RerankingAlpha:            0.7,   // Favor cross-encoder score
-		RerankingMinImprovement:   0,     // Always apply reranking
-		GraphEnabled:              true,  // Enable graph-aware search by default
-		GraphMaxHops:              2,     // Two-hop traversal
-		GraphBranchFactor:         5,     // Expand top 5 neighbors per node
-		GraphEdgeWeight:           0.3,   // Minimum edge weight to follow
-		GraphRebuildIntervalMin:   60,    // Rebuild graph every 60 minutes
-		VectorStorageStrategy:     "hub", // Hub storage strategy (LEANN-inspired)
-		HubThreshold:              5,     // Require 5+ accesses to store embedding
-		ContextObservations:       100,
-		ContextFullCount:          25,
-		ContextSessionCount:       10,
-		ContextShowReadTokens:     true,
-		ContextShowWorkTokens:     true,
-		ContextFullField:          "narrative",
-		ContextShowLastSummary:    true,
-		ContextObsTypes:           DefaultObservationTypes,
-		ContextObsConcepts:        DefaultObservationConcepts,
-		ContextRelevanceThreshold: 0.3,   // Minimum 30% similarity to include
-		ContextMaxPromptResults:   10,    // Cap at 10 results max (0 = no cap, threshold only)
-		MaintenanceEnabled:        true,  // Enable scheduled maintenance
-		MaintenanceIntervalHours:  6,     // Run every 6 hours
-		ObservationRetentionDays:  0,     // 0 = no age-based deletion (keep all)
-		CleanupStaleObservations:  false, // Don't auto-cleanup stale observations
+		WorkerPort:             DefaultWorkerPort,
+		DBPath:                 DBPath(),
+		MaxConns:               4,
+		Model:                  DefaultModel,
+		ContextObservations:    100,
+		ContextFullCount:       25,
+		ContextSessionCount:    10,
+		ContextShowReadTokens:  true,
+		ContextShowWorkTokens:  true,
+		ContextFullField:       "narrative",
+		ContextShowLastSummary: true,
+		ContextObsTypes:        DefaultObservationTypes,
+		ContextObsConcepts:     DefaultObservationConcepts,
 	}
 }
 
@@ -203,28 +166,6 @@ func Load() (*Config, error) {
 	if v, ok := settings["CLAUDE_CODE_PATH"].(string); ok {
 		cfg.ClaudeCodePath = v
 	}
-	if v, ok := settings["CLAUDE_MNEMONIC_EMBEDDING_MODEL"].(string); ok && v != "" {
-		cfg.EmbeddingModel = v
-	}
-	// Reranking settings
-	if v, ok := settings["CLAUDE_MNEMONIC_RERANKING_ENABLED"].(bool); ok {
-		cfg.RerankingEnabled = v
-	}
-	if v, ok := settings["CLAUDE_MNEMONIC_RERANKING_CANDIDATES"].(float64); ok && v > 0 {
-		cfg.RerankingCandidates = int(v)
-	}
-	if v, ok := settings["CLAUDE_MNEMONIC_RERANKING_RESULTS"].(float64); ok && v > 0 {
-		cfg.RerankingResults = int(v)
-	}
-	if v, ok := settings["CLAUDE_MNEMONIC_RERANKING_ALPHA"].(float64); ok && v >= 0 && v <= 1 {
-		cfg.RerankingAlpha = v
-	}
-	if v, ok := settings["CLAUDE_MNEMONIC_RERANKING_MIN_IMPROVEMENT"].(float64); ok && v >= 0 {
-		cfg.RerankingMinImprovement = v
-	}
-	if v, ok := settings["CLAUDE_MNEMONIC_RERANKING_PURE_MODE"].(bool); ok {
-		cfg.RerankingPureMode = v
-	}
 	if v, ok := settings["CLAUDE_MNEMONIC_CONTEXT_OBSERVATIONS"].(float64); ok {
 		cfg.ContextObservations = int(v)
 	}
@@ -240,35 +181,6 @@ func Load() (*Config, error) {
 	if v, ok := settings["CLAUDE_MNEMONIC_CONTEXT_OBS_CONCEPTS"].(string); ok && v != "" {
 		cfg.ContextObsConcepts = splitTrim(v)
 	}
-	if v, ok := settings["CLAUDE_MNEMONIC_CONTEXT_RELEVANCE_THRESHOLD"].(float64); ok && v >= 0 && v <= 1 {
-		cfg.ContextRelevanceThreshold = v
-	}
-	if v, ok := settings["CLAUDE_MNEMONIC_CONTEXT_MAX_PROMPT_RESULTS"].(float64); ok && v >= 0 {
-		cfg.ContextMaxPromptResults = int(v)
-	}
-	// Graph settings
-	if v, ok := settings["CLAUDE_MNEMONIC_GRAPH_ENABLED"].(bool); ok {
-		cfg.GraphEnabled = v
-	}
-	if v, ok := settings["CLAUDE_MNEMONIC_GRAPH_MAX_HOPS"].(float64); ok && v > 0 {
-		cfg.GraphMaxHops = int(v)
-	}
-	if v, ok := settings["CLAUDE_MNEMONIC_GRAPH_BRANCH_FACTOR"].(float64); ok && v > 0 {
-		cfg.GraphBranchFactor = int(v)
-	}
-	if v, ok := settings["CLAUDE_MNEMONIC_GRAPH_EDGE_WEIGHT"].(float64); ok && v >= 0 && v <= 1 {
-		cfg.GraphEdgeWeight = v
-	}
-	if v, ok := settings["CLAUDE_MNEMONIC_GRAPH_REBUILD_INTERVAL_MIN"].(float64); ok && v > 0 {
-		cfg.GraphRebuildIntervalMin = int(v)
-	}
-	// Vector storage settings (LEANN Phase 2)
-	if v, ok := settings["CLAUDE_MNEMONIC_VECTOR_STORAGE_STRATEGY"].(string); ok && v != "" {
-		cfg.VectorStorageStrategy = v
-	}
-	if v, ok := settings["CLAUDE_MNEMONIC_HUB_THRESHOLD"].(float64); ok && v > 0 {
-		cfg.HubThreshold = int(v)
-	}
 
 	return cfg, nil
 }

internal/config/config_test.go

@@ -121,8 +121,8 @@ func (s *ConfigSuite) TestLoad_TableDriven() {
 	tests := []struct {
 		name           string
 		settingsJSON   string
-		expectedModel  string
 		expectedPort   int
+		expectedModel  string
 		expectedObsObs int
 	}{
 		{
@@ -183,12 +183,12 @@ func (s *ConfigSuite) TestLoad_TableDriven() {
 			s.Require().NoError(err)
 
 			if tt.settingsJSON != "" {
-				writeErr := os.WriteFile(
+				err := os.WriteFile(
 					filepath.Join(tempDir, ".claude-mnemonic", "settings.json"),
 					[]byte(tt.settingsJSON),
 					0600,
 				)
-				s.Require().NoError(writeErr)
+				s.Require().NoError(err)
 			}
 
 			cfg, err := Load()

internal/db/gorm/benchmark_test.go

@@ -1,331 +0,0 @@
-//go:build fts5
-
-// Package gorm provides GORM-based database operations for claude-mnemonic.
-package gorm
-
-import (
-	"context"
-	"database/sql"
-	"fmt"
-	"os"
-	"path/filepath"
-	"testing"
-
-	"gorm.io/gorm/logger"
-
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-)
-
-// setupBenchStore creates a temporary store for benchmarking.
-func setupBenchStore(b *testing.B) (*Store, func()) {
-	b.Helper()
-
-	tmpDir, err := os.MkdirTemp("", "gorm_bench_*")
-	if err != nil {
-		b.Fatalf("create temp dir: %v", err)
-	}
-
-	dbPath := filepath.Join(tmpDir, "bench.db")
-	cfg := Config{
-		Path:     dbPath,
-		MaxConns: 4,
-		LogLevel: logger.Silent,
-	}
-
-	store, err := NewStore(cfg)
-	if err != nil {
-		os.RemoveAll(tmpDir)
-		b.Fatalf("NewStore failed: %v", err)
-	}
-
-	cleanup := func() {
-		store.Close()
-		os.RemoveAll(tmpDir)
-	}
-
-	return store, cleanup
-}
-
-// BenchmarkSessionStore_CreateSDKSession benchmarks session creation (most frequent operation).
-func BenchmarkSessionStore_CreateSDKSession(b *testing.B) {
-	store, cleanup := setupBenchStore(b)
-	defer cleanup()
-
-	sessionStore := NewSessionStore(store)
-	ctx := context.Background()
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		sessionID := fmt.Sprintf("claude-bench-%d", i)
-		_, err := sessionStore.CreateSDKSession(ctx, sessionID, "bench-project", "test prompt")
-		if err != nil {
-			b.Fatalf("CreateSDKSession failed: %v", err)
-		}
-	}
-}
-
-// BenchmarkSessionStore_CreateSDKSession_Idempotent benchmarks idempotent session creation (INSERT OR IGNORE).
-func BenchmarkSessionStore_CreateSDKSession_Idempotent(b *testing.B) {
-	store, cleanup := setupBenchStore(b)
-	defer cleanup()
-
-	sessionStore := NewSessionStore(store)
-	ctx := context.Background()
-
-	// Pre-create session
-	sessionStore.CreateSDKSession(ctx, "claude-bench", "bench-project", "test prompt")
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		_, err := sessionStore.CreateSDKSession(ctx, "claude-bench", "bench-project", "updated prompt")
-		if err != nil {
-			b.Fatalf("CreateSDKSession failed: %v", err)
-		}
-	}
-}
-
-// BenchmarkObservationStore_StoreObservation benchmarks observation storage (high frequency).
-func BenchmarkObservationStore_StoreObservation(b *testing.B) {
-	store, cleanup := setupBenchStore(b)
-	defer cleanup()
-
-	sessionStore := NewSessionStore(store)
-	obsStore := NewObservationStore(store, nil, nil, nil)
-	ctx := context.Background()
-
-	// Create session
-	sessionID, _ := sessionStore.CreateSDKSession(ctx, "claude-bench", "bench-project", "")
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		obs := &models.ParsedObservation{
-			Type:      models.ObsTypeDiscovery,
-			Title:     fmt.Sprintf("Observation %d", i),
-			Narrative: "Benchmark observation content",
-		}
-		_, _, err := obsStore.StoreObservation(ctx, "claude-bench", "bench-project", obs, int(sessionID), int64(i+1))
-		if err != nil {
-			b.Fatalf("StoreObservation failed: %v", err)
-		}
-	}
-}
-
-// BenchmarkObservationStore_GetRecentObservations benchmarks recent observation retrieval.
-func BenchmarkObservationStore_GetRecentObservations(b *testing.B) {
-	store, cleanup := setupBenchStore(b)
-	defer cleanup()
-
-	sessionStore := NewSessionStore(store)
-	obsStore := NewObservationStore(store, nil, nil, nil)
-	ctx := context.Background()
-
-	// Create session and observations
-	sessionID, _ := sessionStore.CreateSDKSession(ctx, "claude-bench", "bench-project", "")
-	for i := 0; i < 100; i++ {
-		obs := &models.ParsedObservation{
-			Type:      models.ObsTypeDiscovery,
-			Title:     fmt.Sprintf("Observation %d", i),
-			Narrative: "Benchmark observation content",
-		}
-		obsStore.StoreObservation(ctx, "claude-bench", "bench-project", obs, int(sessionID), int64(i+1))
-	}
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		_, err := obsStore.GetRecentObservations(ctx, "bench-project", 20)
-		if err != nil {
-			b.Fatalf("GetRecentObservations failed: %v", err)
-		}
-	}
-}
-
-// BenchmarkObservationStore_SearchObservationsFTS benchmarks FTS5 search (latency-sensitive).
-func BenchmarkObservationStore_SearchObservationsFTS(b *testing.B) {
-	store, cleanup := setupBenchStore(b)
-	defer cleanup()
-
-	sessionStore := NewSessionStore(store)
-	obsStore := NewObservationStore(store, nil, nil, nil)
-	ctx := context.Background()
-
-	// Create session and observations with searchable content
-	sessionID, _ := sessionStore.CreateSDKSession(ctx, "claude-bench", "bench-project", "")
-	for i := 0; i < 100; i++ {
-		obs := &models.ParsedObservation{
-			Type:      models.ObsTypeDiscovery,
-			Title:     fmt.Sprintf("Security best practice %d", i),
-			Narrative: "This observation discusses security patterns and authentication mechanisms",
-		}
-		obsStore.StoreObservation(ctx, "claude-bench", "bench-project", obs, int(sessionID), int64(i+1))
-	}
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		_, err := obsStore.SearchObservationsFTS(ctx, "security authentication", "bench-project", 10)
-		if err != nil {
-			b.Fatalf("SearchObservationsFTS failed: %v", err)
-		}
-	}
-}
-
-// BenchmarkObservationStore_UpdateImportanceScore benchmarks scoring updates.
-func BenchmarkObservationStore_UpdateImportanceScore(b *testing.B) {
-	store, cleanup := setupBenchStore(b)
-	defer cleanup()
-
-	sessionStore := NewSessionStore(store)
-	obsStore := NewObservationStore(store, nil, nil, nil)
-	ctx := context.Background()
-
-	// Create session and observation
-	sessionID, _ := sessionStore.CreateSDKSession(ctx, "claude-bench", "bench-project", "")
-	obs := &models.ParsedObservation{Type: models.ObsTypeDiscovery, Title: "Test"}
-	obsID, _, _ := obsStore.StoreObservation(ctx, "claude-bench", "bench-project", obs, int(sessionID), 1)
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		score := float64(i%10) + 1.0
-		err := obsStore.UpdateImportanceScore(ctx, obsID, score)
-		if err != nil {
-			b.Fatalf("UpdateImportanceScore failed: %v", err)
-		}
-	}
-}
-
-// BenchmarkObservationStore_UpdateImportanceScores_Bulk benchmarks bulk scoring updates.
-func BenchmarkObservationStore_UpdateImportanceScores_Bulk(b *testing.B) {
-	store, cleanup := setupBenchStore(b)
-	defer cleanup()
-
-	sessionStore := NewSessionStore(store)
-	obsStore := NewObservationStore(store, nil, nil, nil)
-	ctx := context.Background()
-
-	// Create session and 100 observations
-	sessionID, _ := sessionStore.CreateSDKSession(ctx, "claude-bench", "bench-project", "")
-	var obsIDs []int64
-	for i := 0; i < 100; i++ {
-		obs := &models.ParsedObservation{Type: models.ObsTypeDiscovery, Title: fmt.Sprintf("Obs %d", i)}
-		obsID, _, _ := obsStore.StoreObservation(ctx, "claude-bench", "bench-project", obs, int(sessionID), int64(i+1))
-		obsIDs = append(obsIDs, obsID)
-	}
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		scores := make(map[int64]float64)
-		for _, id := range obsIDs {
-			scores[id] = float64(i%10) + 1.0
-		}
-		err := obsStore.UpdateImportanceScores(ctx, scores)
-		if err != nil {
-			b.Fatalf("UpdateImportanceScores failed: %v", err)
-		}
-	}
-}
-
-// BenchmarkPromptStore_SaveUserPromptWithMatches benchmarks prompt storage with matches.
-func BenchmarkPromptStore_SaveUserPromptWithMatches(b *testing.B) {
-	store, cleanup := setupBenchStore(b)
-	defer cleanup()
-
-	sessionStore := NewSessionStore(store)
-	promptStore := NewPromptStore(store, nil)
-	ctx := context.Background()
-
-	// Create session
-	sessionID, _ := sessionStore.CreateSDKSession(ctx, "claude-bench", "bench-project", "")
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		_, err := promptStore.SaveUserPromptWithMatches(ctx, "claude-bench", int(sessionID), fmt.Sprintf("Prompt %d", i), i+1)
-		if err != nil {
-			b.Fatalf("SaveUserPromptWithMatches failed: %v", err)
-		}
-	}
-}
-
-// BenchmarkSummaryStore_StoreSummary benchmarks summary storage.
-func BenchmarkSummaryStore_StoreSummary(b *testing.B) {
-	store, cleanup := setupBenchStore(b)
-	defer cleanup()
-
-	sessionStore := NewSessionStore(store)
-	summaryStore := NewSummaryStore(store)
-	ctx := context.Background()
-
-	// Create session
-	sessionStore.CreateSDKSession(ctx, "claude-bench", "bench-project", "")
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		summary := &models.ParsedSummary{
-			Request:      fmt.Sprintf("Request %d", i),
-			Investigated: "Investigation details",
-			Learned:      "Learning summary",
-			Completed:    "Completion status",
-		}
-		_, _, err := summaryStore.StoreSummary(ctx, "claude-bench", "bench-project", summary, i+1, 100)
-		if err != nil {
-			b.Fatalf("StoreSummary failed: %v", err)
-		}
-	}
-}
-
-// BenchmarkRelationStore_StoreRelation benchmarks relation storage.
-func BenchmarkRelationStore_StoreRelation(b *testing.B) {
-	store, cleanup := setupBenchStore(b)
-	defer cleanup()
-
-	sessionStore := NewSessionStore(store)
-	obsStore := NewObservationStore(store, nil, nil, nil)
-	relationStore := NewRelationStore(store)
-	ctx := context.Background()
-
-	// Create session and observations
-	sessionID, _ := sessionStore.CreateSDKSession(ctx, "claude-bench", "bench-project", "")
-	obs1 := &models.ParsedObservation{Type: models.ObsTypeDiscovery, Title: "Source"}
-	obsID1, _, _ := obsStore.StoreObservation(ctx, "claude-bench", "bench-project", obs1, int(sessionID), 1)
-	obs2 := &models.ParsedObservation{Type: models.ObsTypeDiscovery, Title: "Target"}
-	obsID2, _, _ := obsStore.StoreObservation(ctx, "claude-bench", "bench-project", obs2, int(sessionID), 2)
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		relation := &models.ObservationRelation{
-			SourceID:        obsID1,
-			TargetID:        obsID2,
-			RelationType:    models.RelationCauses,
-			Confidence:      0.9,
-			DetectionSource: models.DetectionSourceFileOverlap,
-		}
-		_, err := relationStore.StoreRelation(ctx, relation)
-		if err != nil {
-			b.Fatalf("StoreRelation failed: %v", err)
-		}
-	}
-}
-
-// BenchmarkPatternStore_StorePattern benchmarks pattern storage.
-func BenchmarkPatternStore_StorePattern(b *testing.B) {
-	store, cleanup := setupBenchStore(b)
-	defer cleanup()
-
-	patternStore := NewPatternStore(store)
-	ctx := context.Background()
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		pattern := &models.Pattern{
-			Name:        fmt.Sprintf("Pattern %d", i),
-			Type:        models.PatternTypeBug,
-			Description: sql.NullString{String: "Benchmark pattern", Valid: true},
-			Frequency:   1,
-			Confidence:  0.8,
-			Projects:    []string{"bench-project"},
-			Status:      models.PatternStatusActive,
-		}
-		_, err := patternStore.StorePattern(ctx, pattern)
-		if err != nil {
-			b.Fatalf("StorePattern failed: %v", err)
-		}
-	}
-}

internal/db/gorm/conflict_store.go

@@ -1,281 +0,0 @@
-// Package gorm provides GORM-based database operations for claude-mnemonic.
-package gorm
-
-import (
-	"context"
-	"database/sql"
-	"time"
-
-	"gorm.io/gorm"
-
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-)
-
-// SupersededRetentionDays is the number of days to keep superseded observations before deletion.
-const SupersededRetentionDays = 3
-
-// ConflictStore provides conflict-related database operations using GORM.
-type ConflictStore struct {
-	db *gorm.DB
-}
-
-// NewConflictStore creates a new conflict store.
-func NewConflictStore(store *Store) *ConflictStore {
-	return &ConflictStore{
-		db: store.DB,
-	}
-}
-
-// StoreConflict stores a new observation conflict.
-func (s *ConflictStore) StoreConflict(ctx context.Context, conflict *models.ObservationConflict) (int64, error) {
-	dbConflict := &ObservationConflict{
-		NewerObsID:      conflict.NewerObsID,
-		OlderObsID:      conflict.OlderObsID,
-		ConflictType:    conflict.ConflictType,
-		Resolution:      conflict.Resolution,
-		DetectedAt:      conflict.DetectedAt,
-		DetectedAtEpoch: conflict.DetectedAtEpoch,
-		Resolved:        0,
-	}
-
-	// Convert bool to int
-	if conflict.Resolved {
-		dbConflict.Resolved = 1
-	}
-
-	// Handle nullable fields
-	if conflict.Reason != "" {
-		dbConflict.Reason = sql.NullString{String: conflict.Reason, Valid: true}
-	}
-	if conflict.ResolvedAt != nil && *conflict.ResolvedAt != "" {
-		dbConflict.ResolvedAt = sql.NullString{String: *conflict.ResolvedAt, Valid: true}
-	}
-
-	result := s.db.WithContext(ctx).Create(dbConflict)
-	if result.Error != nil {
-		return 0, result.Error
-	}
-
-	return dbConflict.ID, nil
-}
-
-// MarkObservationSuperseded marks an observation as superseded.
-func (s *ConflictStore) MarkObservationSuperseded(ctx context.Context, obsID int64) error {
-	result := s.db.WithContext(ctx).
-		Model(&Observation{}).
-		Where("id = ?", obsID).
-		Update("is_superseded", 1)
-
-	return result.Error
-}
-
-// MarkObservationsSuperseded marks multiple observations as superseded.
-func (s *ConflictStore) MarkObservationsSuperseded(ctx context.Context, obsIDs []int64) error {
-	if len(obsIDs) == 0 {
-		return nil
-	}
-
-	result := s.db.WithContext(ctx).
-		Model(&Observation{}).
-		Where("id IN ?", obsIDs).
-		Update("is_superseded", 1)
-
-	return result.Error
-}
-
-// GetConflictsByObservationID retrieves all conflicts involving an observation.
-func (s *ConflictStore) GetConflictsByObservationID(ctx context.Context, obsID int64) ([]*models.ObservationConflict, error) {
-	var conflicts []ObservationConflict
-
-	err := s.db.WithContext(ctx).
-		Where("newer_obs_id = ? OR older_obs_id = ?", obsID, obsID).
-		Order("detected_at_epoch DESC").
-		Find(&conflicts).Error
-
-	if err != nil {
-		return nil, err
-	}
-
-	return toModelConflicts(conflicts), nil
-}
-
-// GetUnresolvedConflicts retrieves all unresolved conflicts.
-func (s *ConflictStore) GetUnresolvedConflicts(ctx context.Context, limit int) ([]*models.ObservationConflict, error) {
-	var conflicts []ObservationConflict
-
-	err := s.db.WithContext(ctx).
-		Where("resolved = 0").
-		Order("detected_at_epoch DESC").
-		Limit(limit).
-		Find(&conflicts).Error
-
-	if err != nil {
-		return nil, err
-	}
-
-	return toModelConflicts(conflicts), nil
-}
-
-// GetSupersededObservationIDs returns IDs of all observations that have been superseded.
-func (s *ConflictStore) GetSupersededObservationIDs(ctx context.Context, project string) ([]int64, error) {
-	var ids []int64
-
-	err := s.db.WithContext(ctx).
-		Table("observation_conflicts oc").
-		Select("DISTINCT oc.older_obs_id").
-		Joins("JOIN observations o ON o.id = oc.older_obs_id").
-		Where("oc.resolution = ?", models.ResolutionPreferNewer).
-		Where("o.project = ? OR o.scope = 'global'", project).
-		Pluck("oc.older_obs_id", &ids).Error
-
-	return ids, err
-}
-
-// ResolveConflict marks a conflict as resolved.
-func (s *ConflictStore) ResolveConflict(ctx context.Context, conflictID int64, resolution models.ConflictResolution) error {
-	now := time.Now().Format(time.RFC3339)
-
-	result := s.db.WithContext(ctx).
-		Model(&ObservationConflict{}).
-		Where("id = ?", conflictID).
-		Updates(map[string]interface{}{
-			"resolved":    1,
-			"resolved_at": now,
-			"resolution":  resolution,
-		})
-
-	return result.Error
-}
-
-// DeleteConflictsByObservationID deletes all conflicts involving an observation.
-// Called when an observation is deleted.
-func (s *ConflictStore) DeleteConflictsByObservationID(ctx context.Context, obsID int64) error {
-	result := s.db.WithContext(ctx).
-		Where("newer_obs_id = ? OR older_obs_id = ?", obsID, obsID).
-		Delete(&ObservationConflict{})
-
-	return result.Error
-}
-
-// ConflictWithDetails contains a conflict with its observation details.
-type ConflictWithDetails struct {
-	Conflict      *models.ObservationConflict
-	NewerObsTitle string
-	OlderObsTitle string
-}
-
-// CleanupSupersededObservations deletes observations that have been superseded for longer than
-// SupersededRetentionDays. Returns the IDs of deleted observations for downstream cleanup (e.g., vector DB).
-func (s *ConflictStore) CleanupSupersededObservations(ctx context.Context, project string) ([]int64, error) {
-	// Calculate cutoff time (3 days ago in milliseconds)
-	cutoffEpoch := time.Now().AddDate(0, 0, -SupersededRetentionDays).UnixMilli()
-
-	var toDelete []int64
-
-	// Use a transaction to prevent TOCTOU race condition
-	err := s.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
-		// Find IDs to delete
-		err := tx.Table("observations o").
-			Select("DISTINCT o.id").
-			Joins("JOIN observation_conflicts oc ON o.id = oc.older_obs_id").
-			Where("o.is_superseded = 1").
-			Where("o.project = ?", project).
-			Where("oc.detected_at_epoch < ?", cutoffEpoch).
-			Pluck("o.id", &toDelete).Error
-
-		if err != nil {
-			return err
-		}
-
-		if len(toDelete) == 0 {
-			return nil
-		}
-
-		// Delete the conflict records first (due to foreign key constraints)
-		for _, obsID := range toDelete {
-			err := tx.Where("newer_obs_id = ? OR older_obs_id = ?", obsID, obsID).
-				Delete(&ObservationConflict{}).Error
-			if err != nil {
-				return err
-			}
-		}
-
-		// Delete the observations
-		return tx.Delete(&Observation{}, toDelete).Error
-	})
-
-	if err != nil {
-		return nil, err
-	}
-
-	return toDelete, nil
-}
-
-// GetConflictsWithDetails retrieves all conflicts with observation titles for display.
-func (s *ConflictStore) GetConflictsWithDetails(ctx context.Context, project string, limit int) ([]*ConflictWithDetails, error) {
-	var results []struct {
-		NewerTitle sql.NullString `gorm:"column:newer_title"`
-		OlderTitle sql.NullString `gorm:"column:older_title"`
-		ObservationConflict
-	}
-
-	err := s.db.WithContext(ctx).
-		Table("observation_conflicts oc").
-		Select("oc.*, "+
-			"COALESCE(newer.title, '') as newer_title, "+
-			"COALESCE(older.title, '') as older_title").
-		Joins("JOIN observations newer ON newer.id = oc.newer_obs_id").
-		Joins("JOIN observations older ON older.id = oc.older_obs_id").
-		Where("newer.project = ? OR older.project = ?", project, project).
-		Order("oc.detected_at_epoch DESC").
-		Limit(limit).
-		Scan(&results).Error
-
-	if err != nil {
-		return nil, err
-	}
-
-	conflicts := make([]*ConflictWithDetails, len(results))
-	for i, r := range results {
-		conflicts[i] = &ConflictWithDetails{
-			Conflict:      toModelConflict(&r.ObservationConflict),
-			NewerObsTitle: r.NewerTitle.String,
-			OlderObsTitle: r.OlderTitle.String,
-		}
-	}
-
-	return conflicts, nil
-}
-
-// toModelConflict converts a GORM ObservationConflict to a pkg/models ObservationConflict.
-func toModelConflict(c *ObservationConflict) *models.ObservationConflict {
-	conflict := &models.ObservationConflict{
-		ID:              c.ID,
-		NewerObsID:      c.NewerObsID,
-		OlderObsID:      c.OlderObsID,
-		ConflictType:    c.ConflictType,
-		Resolution:      c.Resolution,
-		DetectedAt:      c.DetectedAt,
-		DetectedAtEpoch: c.DetectedAtEpoch,
-		Resolved:        c.Resolved == 1,
-	}
-
-	if c.Reason.Valid {
-		conflict.Reason = c.Reason.String
-	}
-	if c.ResolvedAt.Valid {
-		s := c.ResolvedAt.String
-		conflict.ResolvedAt = &s
-	}
-
-	return conflict
-}
-
-// toModelConflicts converts a slice of GORM ObservationConflicts to pkg/models ObservationConflicts.
-func toModelConflicts(conflicts []ObservationConflict) []*models.ObservationConflict {
-	result := make([]*models.ObservationConflict, len(conflicts))
-	for i, c := range conflicts {
-		result[i] = toModelConflict(&c)
-	}
-	return result
-}

internal/db/gorm/conflict_store_test.go

@@ -1,637 +0,0 @@
-//go:build fts5
-
-// Package gorm provides GORM-based database operations for claude-mnemonic.
-package gorm
-
-import (
-	"context"
-	"os"
-	"path/filepath"
-	"testing"
-	"time"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"gorm.io/gorm/logger"
-
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-)
-
-// testConflictStore creates a ConflictStore with a temporary database for testing.
-func testConflictStore(t *testing.T) (*ConflictStore, *Store, func()) {
-	t.Helper()
-
-	tmpDir, err := os.MkdirTemp("", "gorm_conflict_test_*")
-	if err != nil {
-		t.Fatalf("create temp dir: %v", err)
-	}
-
-	dbPath := filepath.Join(tmpDir, "test.db")
-	cfg := Config{
-		Path:     dbPath,
-		MaxConns: 4,
-		LogLevel: logger.Silent,
-	}
-
-	store, err := NewStore(cfg)
-	if err != nil {
-		os.RemoveAll(tmpDir)
-		t.Fatalf("NewStore failed: %v", err)
-	}
-
-	conflictStore := NewConflictStore(store)
-
-	cleanup := func() {
-		store.Close()
-		os.RemoveAll(tmpDir)
-	}
-
-	return conflictStore, store, cleanup
-}
-
-func TestConflictStore_StoreConflict(t *testing.T) {
-	conflictStore, store, cleanup := testConflictStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Create session for observations
-	sessionStore := NewSessionStore(store)
-	sessionID, err := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-	require.NoError(t, err)
-
-	// Create test observations
-	obsStore := NewObservationStore(store, nil, nil, nil)
-	obs1 := &models.ParsedObservation{
-		Type:  models.ObsTypeDiscovery,
-		Title: "Newer observation",
-	}
-	obsID1, _, err := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs1, int(sessionID), 1)
-	require.NoError(t, err)
-
-	obs2 := &models.ParsedObservation{
-		Type:  models.ObsTypeDiscovery,
-		Title: "Older observation",
-	}
-	obsID2, _, err := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs2, int(sessionID), 2)
-	require.NoError(t, err)
-
-	// Create conflict
-	now := time.Now()
-	conflict := &models.ObservationConflict{
-		NewerObsID:      obsID1,
-		OlderObsID:      obsID2,
-		ConflictType:    models.ConflictContradicts,
-		Resolution:      models.ResolutionPreferNewer,
-		Reason:          "Newer observation contradicts older one",
-		DetectedAt:      now.Format(time.RFC3339),
-		DetectedAtEpoch: now.UnixMilli(),
-		Resolved:        false,
-	}
-
-	id, err := conflictStore.StoreConflict(ctx, conflict)
-	require.NoError(t, err)
-	assert.Greater(t, id, int64(0))
-
-	// Verify conflict was stored
-	var count int64
-	store.DB.Model(&ObservationConflict{}).Where("id = ?", id).Count(&count)
-	assert.Equal(t, int64(1), count)
-}
-
-func TestConflictStore_MarkObservationSuperseded(t *testing.T) {
-	conflictStore, store, cleanup := testConflictStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Create observation
-	sessionStore := NewSessionStore(store)
-	sessionID, err := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-	require.NoError(t, err)
-
-	obsStore := NewObservationStore(store, nil, nil, nil)
-	obs := &models.ParsedObservation{
-		Type:  models.ObsTypeDiscovery,
-		Title: "Test observation",
-	}
-	obsID, _, err := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs, int(sessionID), 1)
-	require.NoError(t, err)
-
-	// Mark as superseded
-	err = conflictStore.MarkObservationSuperseded(ctx, obsID)
-	require.NoError(t, err)
-
-	// Verify it's marked
-	var dbObs Observation
-	store.DB.First(&dbObs, obsID)
-	assert.Equal(t, 1, dbObs.IsSuperseded)
-}
-
-func TestConflictStore_MarkObservationsSuperseded(t *testing.T) {
-	conflictStore, store, cleanup := testConflictStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	tests := []struct {
-		name   string
-		obsIDs []int64
-		setup  func() []int64
-	}{
-		{
-			name:   "empty list",
-			obsIDs: []int64{},
-			setup:  func() []int64 { return []int64{} },
-		},
-		{
-			name: "single observation",
-			setup: func() []int64 {
-				sessionStore := NewSessionStore(store)
-				sessionID, _ := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-				obsStore := NewObservationStore(store, nil, nil, nil)
-				obs := &models.ParsedObservation{
-					Type:  models.ObsTypeDiscovery,
-					Title: "Test",
-				}
-				id, _, _ := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs, int(sessionID), 1)
-				return []int64{id}
-			},
-		},
-		{
-			name: "multiple observations",
-			setup: func() []int64 {
-				sessionStore := NewSessionStore(store)
-				sessionID, _ := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-				obsStore := NewObservationStore(store, nil, nil, nil)
-				var ids []int64
-				for i := 0; i < 3; i++ {
-					obs := &models.ParsedObservation{
-						Type:  models.ObsTypeDiscovery,
-						Title: "Test",
-					}
-					id, _, _ := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs, int(sessionID), int64(i+1))
-					ids = append(ids, id)
-				}
-				return ids
-			},
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			obsIDs := tt.setup()
-			err := conflictStore.MarkObservationsSuperseded(ctx, obsIDs)
-			require.NoError(t, err)
-
-			if len(obsIDs) > 0 {
-				// Verify all are marked
-				for _, id := range obsIDs {
-					var dbObs Observation
-					store.DB.First(&dbObs, id)
-					assert.Equal(t, 1, dbObs.IsSuperseded)
-				}
-			}
-		})
-	}
-}
-
-func TestConflictStore_GetConflictsByObservationID(t *testing.T) {
-	conflictStore, store, cleanup := testConflictStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Create observations
-	sessionStore := NewSessionStore(store)
-	sessionID, err := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-	require.NoError(t, err)
-
-	obsStore := NewObservationStore(store, nil, nil, nil)
-	var obsIDs []int64
-	for i := 0; i < 3; i++ {
-		obs := &models.ParsedObservation{
-			Type:  models.ObsTypeDiscovery,
-			Title: "Test",
-		}
-		id, _, err := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs, int(sessionID), int64(i+1))
-		require.NoError(t, err)
-		obsIDs = append(obsIDs, id)
-	}
-
-	// Create conflicts involving observation 2 (index 1)
-	now := time.Now()
-	conflict1 := &models.ObservationConflict{
-		NewerObsID:      obsIDs[0],
-		OlderObsID:      obsIDs[1],
-		ConflictType:    models.ConflictContradicts,
-		Resolution:      models.ResolutionPreferNewer,
-		Reason:          "reason1",
-		DetectedAt:      now.Format(time.RFC3339),
-		DetectedAtEpoch: now.UnixMilli(),
-	}
-	_, err = conflictStore.StoreConflict(ctx, conflict1)
-	require.NoError(t, err)
-
-	conflict2 := &models.ObservationConflict{
-		NewerObsID:      obsIDs[1],
-		OlderObsID:      obsIDs[2],
-		ConflictType:    models.ConflictSuperseded,
-		Resolution:      models.ResolutionPreferNewer,
-		Reason:          "reason2",
-		DetectedAt:      now.Format(time.RFC3339),
-		DetectedAtEpoch: now.UnixMilli(),
-	}
-	_, err = conflictStore.StoreConflict(ctx, conflict2)
-	require.NoError(t, err)
-
-	// Get conflicts for observation 2 (involved in 2 conflicts)
-	conflicts, err := conflictStore.GetConflictsByObservationID(ctx, obsIDs[1])
-	require.NoError(t, err)
-	assert.Len(t, conflicts, 2)
-}
-
-func TestConflictStore_GetUnresolvedConflicts(t *testing.T) {
-	conflictStore, store, cleanup := testConflictStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Create observations
-	sessionStore := NewSessionStore(store)
-	sessionID, err := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-	require.NoError(t, err)
-
-	obsStore := NewObservationStore(store, nil, nil, nil)
-	obs1 := &models.ParsedObservation{
-		Type:  models.ObsTypeDiscovery,
-		Title: "Test1",
-	}
-	obsID1, _, err := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs1, int(sessionID), 1)
-	require.NoError(t, err)
-
-	obs2 := &models.ParsedObservation{
-		Type:  models.ObsTypeDiscovery,
-		Title: "Test2",
-	}
-	obsID2, _, err := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs2, int(sessionID), 2)
-	require.NoError(t, err)
-
-	// Create unresolved conflicts
-	now := time.Now()
-	for i := 0; i < 5; i++ {
-		conflict := &models.ObservationConflict{
-			NewerObsID:      obsID1,
-			OlderObsID:      obsID2,
-			ConflictType:    models.ConflictContradicts,
-			Resolution:      models.ResolutionPreferNewer,
-			Reason:          "reason",
-			DetectedAt:      now.Format(time.RFC3339),
-			DetectedAtEpoch: now.UnixMilli(),
-			Resolved:        false,
-		}
-		_, err = conflictStore.StoreConflict(ctx, conflict)
-		require.NoError(t, err)
-	}
-
-	// Create resolved conflict
-	resolvedAt := now.Format(time.RFC3339)
-	resolvedConflict := &models.ObservationConflict{
-		NewerObsID:      obsID1,
-		OlderObsID:      obsID2,
-		ConflictType:    models.ConflictContradicts,
-		Resolution:      models.ResolutionPreferNewer,
-		Reason:          "reason",
-		DetectedAt:      now.Format(time.RFC3339),
-		DetectedAtEpoch: now.UnixMilli(),
-		Resolved:        true,
-		ResolvedAt:      &resolvedAt,
-	}
-	_, err = conflictStore.StoreConflict(ctx, resolvedConflict)
-	require.NoError(t, err)
-
-	// Get unresolved conflicts with limit
-	conflicts, err := conflictStore.GetUnresolvedConflicts(ctx, 3)
-	require.NoError(t, err)
-	assert.Len(t, conflicts, 3)
-
-	// Verify all are unresolved
-	for _, c := range conflicts {
-		assert.False(t, c.Resolved)
-	}
-}
-
-func TestConflictStore_GetSupersededObservationIDs(t *testing.T) {
-	conflictStore, store, cleanup := testConflictStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Create observations
-	sessionStore := NewSessionStore(store)
-	sessionID, err := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-	require.NoError(t, err)
-
-	obsStore := NewObservationStore(store, nil, nil, nil)
-
-	// Create newer observations
-	newer1 := &models.ParsedObservation{
-		Type:  models.ObsTypeDiscovery,
-		Title: "Newer1",
-	}
-	newerID1, _, err := obsStore.StoreObservation(ctx, "claude-1", "test-project", newer1, int(sessionID), 1)
-	require.NoError(t, err)
-
-	newer2 := &models.ParsedObservation{
-		Type:  models.ObsTypeDiscovery,
-		Title: "Newer2",
-	}
-	newerID2, _, err := obsStore.StoreObservation(ctx, "claude-1", "test-project", newer2, int(sessionID), 2)
-	require.NoError(t, err)
-
-	// Create older observations
-	older1 := &models.ParsedObservation{
-		Type:  models.ObsTypeDiscovery,
-		Title: "Older1",
-	}
-	olderID1, _, err := obsStore.StoreObservation(ctx, "claude-1", "test-project", older1, int(sessionID), 3)
-	require.NoError(t, err)
-
-	older2 := &models.ParsedObservation{
-		Type:  models.ObsTypeDiscovery,
-		Title: "Older2",
-	}
-	olderID2, _, err := obsStore.StoreObservation(ctx, "claude-1", "test-project", older2, int(sessionID), 4)
-	require.NoError(t, err)
-
-	// Mark older observations as superseded
-	err = conflictStore.MarkObservationsSuperseded(ctx, []int64{olderID1, olderID2})
-	require.NoError(t, err)
-
-	// Create conflicts with prefer_newer resolution
-	now := time.Now()
-	conflict1 := &models.ObservationConflict{
-		NewerObsID:      newerID1,
-		OlderObsID:      olderID1,
-		ConflictType:    models.ConflictSuperseded,
-		Resolution:      models.ResolutionPreferNewer,
-		Reason:          "reason1",
-		DetectedAt:      now.Format(time.RFC3339),
-		DetectedAtEpoch: now.UnixMilli(),
-	}
-	_, err = conflictStore.StoreConflict(ctx, conflict1)
-	require.NoError(t, err)
-
-	conflict2 := &models.ObservationConflict{
-		NewerObsID:      newerID2,
-		OlderObsID:      olderID2,
-		ConflictType:    models.ConflictSuperseded,
-		Resolution:      models.ResolutionPreferNewer,
-		Reason:          "reason2",
-		DetectedAt:      now.Format(time.RFC3339),
-		DetectedAtEpoch: now.UnixMilli(),
-	}
-	_, err = conflictStore.StoreConflict(ctx, conflict2)
-	require.NoError(t, err)
-
-	// Get superseded IDs (should return older observation IDs)
-	ids, err := conflictStore.GetSupersededObservationIDs(ctx, "test-project")
-	require.NoError(t, err)
-	assert.Len(t, ids, 2)
-	assert.Contains(t, ids, olderID1)
-	assert.Contains(t, ids, olderID2)
-}
-
-func TestConflictStore_ResolveConflict(t *testing.T) {
-	conflictStore, _, cleanup := testConflictStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Create a simple conflict by inserting directly to DB
-	conflict := &ObservationConflict{
-		NewerObsID:      1,
-		OlderObsID:      2,
-		ConflictType:    models.ConflictContradicts,
-		Resolution:      models.ResolutionManual,
-		DetectedAt:      time.Now().Format(time.RFC3339),
-		DetectedAtEpoch: time.Now().UnixMilli(),
-		Resolved:        0,
-	}
-	conflictStore.db.Create(conflict)
-
-	// Resolve conflict
-	err := conflictStore.ResolveConflict(ctx, conflict.ID, models.ResolutionPreferNewer)
-	require.NoError(t, err)
-
-	// Verify resolved
-	var resolved ObservationConflict
-	conflictStore.db.First(&resolved, conflict.ID)
-	assert.Equal(t, 1, resolved.Resolved)
-	assert.True(t, resolved.ResolvedAt.Valid)
-	assert.Equal(t, models.ResolutionPreferNewer, resolved.Resolution)
-}
-
-func TestConflictStore_DeleteConflictsByObservationID(t *testing.T) {
-	conflictStore, _, cleanup := testConflictStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Create conflicts directly in DB
-	now := time.Now()
-	conflicts := []ObservationConflict{
-		{
-			NewerObsID:      1,
-			OlderObsID:      2,
-			ConflictType:    models.ConflictContradicts,
-			Resolution:      models.ResolutionPreferNewer,
-			DetectedAt:      now.Format(time.RFC3339),
-			DetectedAtEpoch: now.UnixMilli(),
-		},
-		{
-			NewerObsID:      3,
-			OlderObsID:      1,
-			ConflictType:    models.ConflictContradicts,
-			Resolution:      models.ResolutionPreferNewer,
-			DetectedAt:      now.Format(time.RFC3339),
-			DetectedAtEpoch: now.UnixMilli(),
-		},
-		{
-			NewerObsID:      2,
-			OlderObsID:      3,
-			ConflictType:    models.ConflictContradicts,
-			Resolution:      models.ResolutionPreferNewer,
-			DetectedAt:      now.Format(time.RFC3339),
-			DetectedAtEpoch: now.UnixMilli(),
-		},
-	}
-	for _, c := range conflicts {
-		conflictStore.db.Create(&c)
-	}
-
-	// Delete conflicts for observation 1
-	err := conflictStore.DeleteConflictsByObservationID(ctx, 1)
-	require.NoError(t, err)
-
-	// Verify only conflicts involving 1 are deleted
-	var count int64
-	conflictStore.db.Model(&ObservationConflict{}).
-		Where("newer_obs_id = 1 OR older_obs_id = 1").
-		Count(&count)
-	assert.Equal(t, int64(0), count)
-
-	// Other conflict should still exist
-	conflictStore.db.Model(&ObservationConflict{}).
-		Where("newer_obs_id = 2 AND older_obs_id = 3").
-		Count(&count)
-	assert.Equal(t, int64(1), count)
-}
-
-func TestConflictStore_CleanupSupersededObservations(t *testing.T) {
-	conflictStore, store, cleanup := testConflictStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Create observations
-	sessionStore := NewSessionStore(store)
-	sessionID, err := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-	require.NoError(t, err)
-
-	obsStore := NewObservationStore(store, nil, nil, nil)
-
-	// Create newer observations
-	newer1 := &models.ParsedObservation{
-		Type:  models.ObsTypeDiscovery,
-		Title: "Newer1",
-	}
-	newerID1, _, err := obsStore.StoreObservation(ctx, "claude-1", "test-project", newer1, int(sessionID), 1)
-	require.NoError(t, err)
-
-	newer2 := &models.ParsedObservation{
-		Type:  models.ObsTypeDiscovery,
-		Title: "Newer2",
-	}
-	newerID2, _, err := obsStore.StoreObservation(ctx, "claude-1", "test-project", newer2, int(sessionID), 2)
-	require.NoError(t, err)
-
-	// Create older observations
-	older1 := &models.ParsedObservation{
-		Type:  models.ObsTypeDiscovery,
-		Title: "OldSuperseded",
-	}
-	oldSupersededID, _, err := obsStore.StoreObservation(ctx, "claude-1", "test-project", older1, int(sessionID), 3)
-	require.NoError(t, err)
-
-	older2 := &models.ParsedObservation{
-		Type:  models.ObsTypeDiscovery,
-		Title: "RecentSuperseded",
-	}
-	recentSupersededID, _, err := obsStore.StoreObservation(ctx, "claude-1", "test-project", older2, int(sessionID), 4)
-	require.NoError(t, err)
-
-	// Mark as superseded
-	err = conflictStore.MarkObservationsSuperseded(ctx, []int64{oldSupersededID, recentSupersededID})
-	require.NoError(t, err)
-
-	// Create conflicts
-	oldTime := time.Now().AddDate(0, 0, -SupersededRetentionDays-1)
-	recentTime := time.Now().AddDate(0, 0, -1)
-
-	// Old conflict (should be deleted)
-	oldConflict := &models.ObservationConflict{
-		NewerObsID:      newerID1,
-		OlderObsID:      oldSupersededID,
-		ConflictType:    models.ConflictSuperseded,
-		Resolution:      models.ResolutionPreferNewer,
-		Reason:          "old",
-		DetectedAt:      oldTime.Format(time.RFC3339),
-		DetectedAtEpoch: oldTime.UnixMilli(),
-	}
-	_, err = conflictStore.StoreConflict(ctx, oldConflict)
-	require.NoError(t, err)
-
-	// Recent conflict (should be kept)
-	recentConflict := &models.ObservationConflict{
-		NewerObsID:      newerID2,
-		OlderObsID:      recentSupersededID,
-		ConflictType:    models.ConflictSuperseded,
-		Resolution:      models.ResolutionPreferNewer,
-		Reason:          "recent",
-		DetectedAt:      recentTime.Format(time.RFC3339),
-		DetectedAtEpoch: recentTime.UnixMilli(),
-	}
-	_, err = conflictStore.StoreConflict(ctx, recentConflict)
-	require.NoError(t, err)
-
-	// Cleanup old superseded observations
-	deletedIDs, err := conflictStore.CleanupSupersededObservations(ctx, "test-project")
-	require.NoError(t, err)
-	assert.Len(t, deletedIDs, 1)
-	assert.Contains(t, deletedIDs, oldSupersededID)
-
-	// Verify only old superseded observation was deleted
-	var count int64
-	store.DB.Model(&Observation{}).Count(&count)
-	assert.Equal(t, int64(3), count) // newer1, newer2, recentSuperseded remain
-
-	// Verify old observation was deleted
-	store.DB.Model(&Observation{}).Where("id = ?", oldSupersededID).Count(&count)
-	assert.Equal(t, int64(0), count)
-}
-
-func TestConflictStore_GetConflictsWithDetails(t *testing.T) {
-	conflictStore, store, cleanup := testConflictStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Create observations
-	sessionStore := NewSessionStore(store)
-	sessionID, err := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-	require.NoError(t, err)
-
-	obsStore := NewObservationStore(store, nil, nil, nil)
-
-	newer := &models.ParsedObservation{
-		Type:  models.ObsTypeDiscovery,
-		Title: "Newer observation",
-	}
-	newerID, _, err := obsStore.StoreObservation(ctx, "claude-1", "test-project", newer, int(sessionID), 1)
-	require.NoError(t, err)
-
-	older := &models.ParsedObservation{
-		Type:  models.ObsTypeDiscovery,
-		Title: "Older observation",
-	}
-	olderID, _, err := obsStore.StoreObservation(ctx, "claude-1", "test-project", older, int(sessionID), 2)
-	require.NoError(t, err)
-
-	// Create conflict
-	now := time.Now()
-	conflict := &models.ObservationConflict{
-		NewerObsID:      newerID,
-		OlderObsID:      olderID,
-		ConflictType:    models.ConflictContradicts,
-		Resolution:      models.ResolutionPreferNewer,
-		Reason:          "Test conflict",
-		DetectedAt:      now.Format(time.RFC3339),
-		DetectedAtEpoch: now.UnixMilli(),
-	}
-	_, err = conflictStore.StoreConflict(ctx, conflict)
-	require.NoError(t, err)
-
-	// Get conflicts with details
-	conflicts, err := conflictStore.GetConflictsWithDetails(ctx, "test-project", 10)
-	require.NoError(t, err)
-	assert.Len(t, conflicts, 1)
-
-	// Verify conflict details
-	assert.Equal(t, newerID, conflicts[0].Conflict.NewerObsID)
-	assert.Equal(t, olderID, conflicts[0].Conflict.OlderObsID)
-	assert.Equal(t, models.ConflictContradicts, conflicts[0].Conflict.ConflictType)
-	assert.Equal(t, "Test conflict", conflicts[0].Conflict.Reason)
-	assert.Equal(t, "Newer observation", conflicts[0].NewerObsTitle)
-	assert.Equal(t, "Older observation", conflicts[0].OlderObsTitle)
-}

internal/db/gorm/doc.go

@@ -1,38 +0,0 @@
-// Package gorm provides a GORM-based database implementation for claude-mnemonic.
-//
-// This is a drop-in replacement for internal/db/sqlite with the following benefits:
-//   - 50% code reduction (8,500 → 4,250 lines)
-//   - Type-safe query building
-//   - Automatic statement caching
-//   - Same performance characteristics
-//   - Zero breaking changes
-//
-// Status: Production-ready, not yet integrated
-//
-// # Integration
-//
-// To use this package instead of internal/db/sqlite:
-//
-//	import "github.com/lukaszraczylo/claude-mnemonic/internal/db/gorm"
-//
-//	store, err := gorm.NewStore(gorm.Config{
-//	    Path:     "/path/to/database.db",
-//	    MaxConns: 4,
-//	    LogLevel: logger.Silent,
-//	})
-//
-// See INTEGRATION_GUIDE.md for complete migration instructions.
-//
-// # Testing
-//
-// All tests require the fts5 build tag:
-//
-//	go test -tags "fts5" -v ./internal/db/gorm
-//
-// # Performance
-//
-// See PERFORMANCE.md for detailed benchmark results.
-package gorm
-
-// This file exists for package documentation and to prevent deadcode warnings
-// on an intentionally unused (but complete and tested) implementation.

internal/db/gorm/fts5_test.go

@@ -1,42 +0,0 @@
-//go:build fts5
-
-package gorm
-
-import (
-	"database/sql"
-	"os"
-	"path/filepath"
-	"testing"
-
-	_ "github.com/mattn/go-sqlite3"
-)
-
-// TestFTS5Available verifies FTS5 is available in mattn/go-sqlite3
-func TestFTS5Available(t *testing.T) {
-	tmpDir, err := os.MkdirTemp("", "fts5_test_*")
-	if err != nil {
-		t.Fatalf("create temp dir: %v", err)
-	}
-	defer os.RemoveAll(tmpDir)
-
-	dbPath := filepath.Join(tmpDir, "test.db")
-
-	// Open with mattn/go-sqlite3 driver
-	db, err := sql.Open("sqlite3", dbPath)
-	if err != nil {
-		t.Fatalf("open database: %v", err)
-	}
-	defer db.Close()
-
-	// Try to create FTS5 virtual table
-	_, err = db.Exec(`
-		CREATE VIRTUAL TABLE test_fts USING fts5(
-			content
-		)
-	`)
-	if err != nil {
-		t.Fatalf("create FTS5 table failed: %v", err)
-	}
-
-	t.Logf("✅ FTS5 is available in mattn/go-sqlite3")
-}

internal/db/gorm/helpers.go

@@ -1,101 +0,0 @@
-// Package gorm provides GORM-based database operations for claude-mnemonic.
-package gorm
-
-import (
-	"context"
-	"database/sql"
-	"net/http"
-	"strconv"
-	"time"
-
-	"gorm.io/gorm"
-	"gorm.io/gorm/clause"
-)
-
-// EnsureSessionExists creates a session if it doesn't exist.
-// Uses INSERT OR IGNORE pattern for atomic idempotent creation (single query instead of COUNT + INSERT).
-// This is shared between stores to avoid duplication.
-func EnsureSessionExists(ctx context.Context, db *gorm.DB, sdkSessionID, project string) error {
-	now := time.Now()
-	session := &SDKSession{
-		ClaudeSessionID: sdkSessionID,
-		SDKSessionID:    sqlNullString(sdkSessionID),
-		Project:         project,
-		Status:          "active",
-		StartedAt:       now.Format(time.RFC3339),
-		StartedAtEpoch:  now.UnixMilli(),
-		PromptCounter:   0,
-	}
-
-	// Use INSERT OR IGNORE - single query, atomic operation
-	// If session already exists (conflict on sdk_session_id), do nothing
-	return db.WithContext(ctx).
-		Clauses(clause.OnConflict{
-			Columns:   []clause.Column{{Name: "sdk_session_id"}},
-			DoNothing: true,
-		}).
-		Create(session).Error
-}
-
-// sqlNullString creates a sql.NullString from a string.
-func sqlNullString(s string) sql.NullString {
-	if s == "" {
-		return sql.NullString{Valid: false}
-	}
-	return sql.NullString{String: s, Valid: true}
-}
-
-// MaxPaginationLimit is the maximum allowed limit for pagination queries.
-// This protects against resource exhaustion from excessively large requests.
-const MaxPaginationLimit = 1000
-
-// ParseLimitParam parses the "limit" query parameter from an HTTP request.
-// Returns defaultLimit if the parameter is missing or invalid.
-// Note: This does NOT enforce a maximum limit. Use ParseLimitParamWithMax for that.
-func ParseLimitParam(r *http.Request, defaultLimit int) int {
-	if l := r.URL.Query().Get("limit"); l != "" {
-		if parsed, err := strconv.Atoi(l); err == nil && parsed > 0 {
-			return parsed
-		}
-	}
-	return defaultLimit
-}
-
-// ParseLimitParamWithMax parses the "limit" query parameter with a maximum cap.
-// Returns min(parsed, maxLimit) or defaultLimit if missing/invalid.
-// If maxLimit is 0, uses MaxPaginationLimit (1000).
-func ParseLimitParamWithMax(r *http.Request, defaultLimit, maxLimit int) int {
-	if maxLimit <= 0 {
-		maxLimit = MaxPaginationLimit
-	}
-	limit := ParseLimitParam(r, defaultLimit)
-	if limit > maxLimit {
-		return maxLimit
-	}
-	return limit
-}
-
-// ParseOffsetParam parses the "offset" query parameter from an HTTP request.
-// Returns 0 if the parameter is missing or invalid.
-func ParseOffsetParam(r *http.Request) int {
-	if o := r.URL.Query().Get("offset"); o != "" {
-		if parsed, err := strconv.Atoi(o); err == nil && parsed >= 0 {
-			return parsed
-		}
-	}
-	return 0
-}
-
-// PaginationParams holds pagination parameters.
-type PaginationParams struct {
-	Limit  int
-	Offset int
-}
-
-// ParsePaginationParams parses both limit and offset from an HTTP request.
-func ParsePaginationParams(r *http.Request, defaultLimit int) PaginationParams {
-	return PaginationParams{
-		Limit:  ParseLimitParam(r, defaultLimit),
-		Offset: ParseOffsetParam(r),
-	}
-}

internal/db/gorm/integration_test.go

@@ -1,343 +0,0 @@
-//go:build fts5
-
-// Package gorm provides GORM-based database operations for claude-mnemonic.
-package gorm
-
-import (
-	"context"
-	"database/sql"
-	"os"
-	"path/filepath"
-	"testing"
-	"time"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"gorm.io/gorm/logger"
-
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-)
-
-// TestIntegration_EndToEndWorkflow verifies a complete workflow
-// simulating real usage of the GORM package.
-func TestIntegration_EndToEndWorkflow(t *testing.T) {
-	tmpDir, err := os.MkdirTemp("", "gorm_integration_test_*")
-	require.NoError(t, err)
-	defer os.RemoveAll(tmpDir)
-
-	dbPath := filepath.Join(tmpDir, "test.db")
-	cfg := Config{
-		Path:     dbPath,
-		MaxConns: 4,
-		LogLevel: logger.Silent,
-	}
-
-	// Step 1: Initialize store
-	store, err := NewStore(cfg)
-	require.NoError(t, err)
-	defer store.Close()
-
-	ctx := context.Background()
-
-	// Step 2: Create all store types
-	sessionStore := NewSessionStore(store)
-	summaryStore := NewSummaryStore(store)
-	conflictStore := NewConflictStore(store)
-	relationStore := NewRelationStore(store)
-	patternStore := NewPatternStore(store)
-
-	// Create observation store with dependencies
-	observationStore := NewObservationStore(store, nil, conflictStore, relationStore)
-	promptStore := NewPromptStore(store, nil)
-
-	// Step 3: Create a session
-	sessionID, err := sessionStore.CreateSDKSession(ctx, "claude-test", "test-project", "")
-	require.NoError(t, err)
-	assert.Greater(t, sessionID, int64(0))
-
-	// Step 4: Store observations
-	obs1 := &models.ParsedObservation{
-		Type:     models.ObsTypeDiscovery,
-		Title:    "Test Discovery",
-		Subtitle: "Testing GORM integration",
-		Facts:    []string{"Fact 1", "Fact 2"},
-		Concepts: []string{"testing", "integration"},
-	}
-
-	obsID1, _, err := observationStore.StoreObservation(ctx, "claude-test", "test-project", obs1, int(sessionID), 1)
-	require.NoError(t, err)
-	assert.Greater(t, obsID1, int64(0))
-
-	obs2 := &models.ParsedObservation{
-		Type:     models.ObsTypeBugfix,
-		Title:    "Test Bugfix",
-		Facts:    []string{"Fixed bug"},
-		Concepts: []string{"bugfix"},
-	}
-
-	obsID2, _, err := observationStore.StoreObservation(ctx, "claude-test", "test-project", obs2, int(sessionID), 2)
-	require.NoError(t, err)
-	assert.Greater(t, obsID2, int64(0))
-
-	// Step 5: Create relations
-	now := time.Now()
-	relation := &models.ObservationRelation{
-		SourceID:        obsID1,
-		TargetID:        obsID2,
-		RelationType:    models.RelationCauses,
-		Confidence:      0.8,
-		DetectionSource: models.DetectionSourceFileOverlap,
-		CreatedAt:       now.Format(time.RFC3339),
-		CreatedAtEpoch:  now.UnixMilli(),
-	}
-
-	relID, err := relationStore.StoreRelation(ctx, relation)
-	require.NoError(t, err)
-	assert.Greater(t, relID, int64(0))
-
-	// Step 6: Update importance scores
-	err = observationStore.UpdateImportanceScore(ctx, obsID1, 5.0)
-	require.NoError(t, err)
-
-	// Step 7: Increment retrieval counts
-	err = observationStore.IncrementRetrievalCount(ctx, []int64{obsID1, obsID2})
-	require.NoError(t, err)
-
-	// Step 8: Create a pattern
-	pattern := &models.Pattern{
-		Name:           "Test Pattern",
-		Type:           models.PatternTypeBug,
-		Signature:      []string{"bug", "fix"},
-		Frequency:      1,
-		Projects:       []string{"test-project"},
-		ObservationIDs: []int64{obsID1, obsID2},
-		Status:         models.PatternStatusActive,
-		Confidence:     0.75,
-		LastSeenAt:     now.Format(time.RFC3339),
-		LastSeenEpoch:  now.UnixMilli(),
-		CreatedAt:      now.Format(time.RFC3339),
-		CreatedAtEpoch: now.UnixMilli(),
-	}
-
-	patternID, err := patternStore.StorePattern(ctx, pattern)
-	require.NoError(t, err)
-	assert.Greater(t, patternID, int64(0))
-
-	// Step 9: Store a prompt
-	promptID, err := promptStore.SaveUserPromptWithMatches(ctx, "claude-test", 1, "Test prompt", 2)
-	require.NoError(t, err)
-	assert.Greater(t, promptID, int64(0))
-
-	// Step 10: Store a summary
-	summary := &models.ParsedSummary{
-		Request:      "Test request",
-		Investigated: "Test investigation",
-		Learned:      "Test learning",
-		Completed:    "Test completion",
-		NextSteps:    "Test next steps",
-		Notes:        "Test notes",
-	}
-
-	summaryID, _, err := summaryStore.StoreSummary(ctx, "claude-test", "test-project", summary, 1, 100)
-	require.NoError(t, err)
-	assert.Greater(t, summaryID, int64(0))
-
-	// Step 11: Verify data retrieval
-	retrievedObs, err := observationStore.GetObservationByID(ctx, obsID1)
-	require.NoError(t, err)
-	require.NotNil(t, retrievedObs)
-	assert.Equal(t, "Test Discovery", retrievedObs.Title.String)
-	assert.Equal(t, 5.0, retrievedObs.ImportanceScore)
-	assert.Equal(t, 1, retrievedObs.RetrievalCount)
-
-	// Step 12: Verify relations
-	relations, err := relationStore.GetRelationsByObservationID(ctx, obsID1)
-	require.NoError(t, err)
-	assert.Len(t, relations, 1)
-	assert.Equal(t, obsID2, relations[0].TargetID)
-
-	// Step 13: Verify pattern
-	retrievedPattern, err := patternStore.GetPatternByID(ctx, patternID)
-	require.NoError(t, err)
-	require.NotNil(t, retrievedPattern)
-	assert.Equal(t, "Test Pattern", retrievedPattern.Name)
-
-	// Step 14: Verify stats
-	stats, err := observationStore.GetObservationFeedbackStats(ctx, "test-project")
-	require.NoError(t, err)
-	assert.Equal(t, 2, stats.Total)
-
-	t.Log("✅ End-to-end integration test passed!")
-}
-
-// TestIntegration_StoreCompatibility verifies that Store methods work correctly.
-func TestIntegration_StoreCompatibility(t *testing.T) {
-	tmpDir, err := os.MkdirTemp("", "gorm_store_test_*")
-	require.NoError(t, err)
-	defer os.RemoveAll(tmpDir)
-
-	dbPath := filepath.Join(tmpDir, "test.db")
-	cfg := Config{
-		Path:     dbPath,
-		MaxConns: 4,
-		LogLevel: logger.Silent,
-	}
-
-	store, err := NewStore(cfg)
-	require.NoError(t, err)
-	defer store.Close()
-
-	// Verify raw DB access (needed for vector client)
-	rawDB := store.GetRawDB()
-	require.NotNil(t, rawDB)
-	assert.IsType(t, &sql.DB{}, rawDB)
-
-	// Verify GORM DB access
-	gormDB := store.GetDB()
-	require.NotNil(t, gormDB)
-
-	// Verify Close works
-	err = store.Close()
-	require.NoError(t, err)
-}
-
-// TestIntegration_ConcurrentAccess verifies thread-safe operations.
-func TestIntegration_ConcurrentAccess(t *testing.T) {
-	tmpDir, err := os.MkdirTemp("", "gorm_concurrent_test_*")
-	require.NoError(t, err)
-	defer os.RemoveAll(tmpDir)
-
-	dbPath := filepath.Join(tmpDir, "test.db")
-	cfg := Config{
-		Path:     dbPath,
-		MaxConns: 4,
-		LogLevel: logger.Silent,
-	}
-
-	store, err := NewStore(cfg)
-	require.NoError(t, err)
-	defer store.Close()
-
-	sessionStore := NewSessionStore(store)
-	ctx := context.Background()
-
-	// Create session
-	sessionID, err := sessionStore.CreateSDKSession(ctx, "claude-concurrent", "test-project", "")
-	require.NoError(t, err)
-
-	// Concurrent prompt counter increments
-	done := make(chan bool)
-	numGoroutines := 10
-
-	for i := 0; i < numGoroutines; i++ {
-		go func() {
-			_, err := sessionStore.IncrementPromptCounter(ctx, sessionID)
-			assert.NoError(t, err)
-			done <- true
-		}()
-	}
-
-	// Wait for all goroutines
-	for i := 0; i < numGoroutines; i++ {
-		<-done
-	}
-
-	// Verify final count
-	session, err := sessionStore.GetSessionByID(ctx, sessionID)
-	require.NoError(t, err)
-	assert.Equal(t, int64(numGoroutines), int64(session.PromptCounter))
-
-	t.Log("✅ Concurrent access test passed!")
-}
-
-// TestIntegration_WALMode verifies WAL mode is enabled.
-func TestIntegration_WALMode(t *testing.T) {
-	tmpDir, err := os.MkdirTemp("", "gorm_wal_test_*")
-	require.NoError(t, err)
-	defer os.RemoveAll(tmpDir)
-
-	dbPath := filepath.Join(tmpDir, "test.db")
-	cfg := Config{
-		Path:     dbPath,
-		MaxConns: 4,
-		LogLevel: logger.Silent,
-	}
-
-	store, err := NewStore(cfg)
-	require.NoError(t, err)
-	defer store.Close()
-
-	// Check WAL mode via raw SQL
-	var journalMode string
-	err = store.GetRawDB().QueryRow("PRAGMA journal_mode").Scan(&journalMode)
-	require.NoError(t, err)
-	assert.Equal(t, "wal", journalMode, "WAL mode should be enabled")
-
-	t.Log("✅ WAL mode verification passed!")
-}
-
-// TestIntegration_FTS5Search verifies FTS5 functionality.
-func TestIntegration_FTS5Search(t *testing.T) {
-	tmpDir, err := os.MkdirTemp("", "gorm_fts5_test_*")
-	require.NoError(t, err)
-	defer os.RemoveAll(tmpDir)
-
-	dbPath := filepath.Join(tmpDir, "test.db")
-	cfg := Config{
-		Path:     dbPath,
-		MaxConns: 4,
-		LogLevel: logger.Silent,
-	}
-
-	store, err := NewStore(cfg)
-	require.NoError(t, err)
-	defer store.Close()
-
-	ctx := context.Background()
-	sessionStore := NewSessionStore(store)
-	observationStore := NewObservationStore(store, nil, nil, nil)
-
-	// Create session
-	sessionID, _ := sessionStore.CreateSDKSession(ctx, "claude-fts5", "test-project", "")
-
-	// Store observations with searchable text
-	obs1 := &models.ParsedObservation{
-		Type:     models.ObsTypeDiscovery,
-		Title:    "Database optimization techniques",
-		Subtitle: "Improving query performance",
-		Facts:    []string{"Use indexes", "Optimize queries"},
-		Concepts: []string{"performance", "optimization"},
-	}
-
-	obsID1, _, _ := observationStore.StoreObservation(ctx, "claude-fts5", "test-project", obs1, int(sessionID), 1)
-
-	obs2 := &models.ParsedObservation{
-		Type:     models.ObsTypeBugfix,
-		Title:    "Fixed memory leak",
-		Facts:    []string{"Closed connections properly"},
-		Concepts: []string{"bugfix", "memory"},
-	}
-
-	observationStore.StoreObservation(ctx, "claude-fts5", "test-project", obs2, int(sessionID), 2)
-
-	// Give FTS5 triggers time to process
-	time.Sleep(100 * time.Millisecond)
-
-	// Search using FTS5
-	results, err := observationStore.SearchObservationsFTS(ctx, "optimization", "test-project", 10)
-	require.NoError(t, err)
-
-	// Should find the optimization observation
-	assert.NotEmpty(t, results, "FTS5 search should return results")
-
-	found := false
-	for _, obs := range results {
-		if obs.ID == obsID1 {
-			found = true
-			break
-		}
-	}
-	assert.True(t, found, "FTS5 should find the optimization observation")
-
-	t.Log("✅ FTS5 search test passed!")
-}

internal/db/gorm/migrations.go

@@ -1,570 +0,0 @@
-// Package gorm provides GORM-based database operations for claude-mnemonic.
-package gorm
-
-import (
-	"database/sql"
-	"fmt"
-	"time"
-
-	"github.com/go-gormigrate/gormigrate/v2"
-	"gorm.io/gorm"
-	"gorm.io/gorm/clause"
-)
-
-// runMigrations runs all database migrations using gormigrate.
-func runMigrations(db *gorm.DB, sqlDB *sql.DB) error {
-	m := gormigrate.New(db, gormigrate.DefaultOptions, []*gormigrate.Migration{
-		// Migration 001: Core tables (SDKSession, Observation, SessionSummary)
-		{
-			ID: "001_core_tables",
-			Migrate: func(tx *gorm.DB) error {
-				// AutoMigrate creates tables with all indexes from struct tags
-				if err := tx.AutoMigrate(&SDKSession{}); err != nil {
-					return err
-				}
-				if err := tx.AutoMigrate(&Observation{}); err != nil {
-					return err
-				}
-				return tx.AutoMigrate(&SessionSummary{})
-			},
-			Rollback: func(tx *gorm.DB) error {
-				return tx.Migrator().DropTable("sdk_sessions", "observations", "session_summaries")
-			},
-		},
-
-		// Migration 002: User prompts table
-		{
-			ID: "002_user_prompts",
-			Migrate: func(tx *gorm.DB) error {
-				return tx.AutoMigrate(&UserPrompt{})
-			},
-			Rollback: func(tx *gorm.DB) error {
-				return tx.Migrator().DropTable("user_prompts")
-			},
-		},
-
-		// Migration 003: FTS5 virtual table for user prompts
-		{
-			ID: "003_user_prompts_fts",
-			Migrate: func(tx *gorm.DB) error {
-				sqls := []string{
-					`CREATE VIRTUAL TABLE IF NOT EXISTS user_prompts_fts USING fts5(
-						prompt_text,
-						content='user_prompts',
-						content_rowid='id'
-					)`,
-					`CREATE TRIGGER IF NOT EXISTS user_prompts_ai AFTER INSERT ON user_prompts BEGIN
-						INSERT INTO user_prompts_fts(rowid, prompt_text)
-						VALUES (new.id, new.prompt_text);
-					END`,
-					`CREATE TRIGGER IF NOT EXISTS user_prompts_ad AFTER DELETE ON user_prompts BEGIN
-						INSERT INTO user_prompts_fts(user_prompts_fts, rowid, prompt_text)
-						VALUES('delete', old.id, old.prompt_text);
-					END`,
-					`CREATE TRIGGER IF NOT EXISTS user_prompts_au AFTER UPDATE ON user_prompts BEGIN
-						INSERT INTO user_prompts_fts(user_prompts_fts, rowid, prompt_text)
-						VALUES('delete', old.id, old.prompt_text);
-						INSERT INTO user_prompts_fts(rowid, prompt_text)
-						VALUES (new.id, new.prompt_text);
-					END`,
-				}
-				for _, s := range sqls {
-					if err := tx.Exec(s).Error; err != nil {
-						return err
-					}
-				}
-				return nil
-			},
-			Rollback: func(tx *gorm.DB) error {
-				sqls := []string{
-					"DROP TRIGGER IF EXISTS user_prompts_au",
-					"DROP TRIGGER IF EXISTS user_prompts_ad",
-					"DROP TRIGGER IF EXISTS user_prompts_ai",
-					"DROP TABLE IF EXISTS user_prompts_fts",
-				}
-				for _, s := range sqls {
-					if err := tx.Exec(s).Error; err != nil {
-						return err
-					}
-				}
-				return nil
-			},
-		},
-
-		// Migration 004: FTS5 virtual table for observations
-		{
-			ID: "004_observations_fts",
-			Migrate: func(tx *gorm.DB) error {
-				sqls := []string{
-					`CREATE VIRTUAL TABLE IF NOT EXISTS observations_fts USING fts5(
-						title, subtitle, narrative,
-						content='observations',
-						content_rowid='id'
-					)`,
-					`CREATE TRIGGER IF NOT EXISTS observations_ai AFTER INSERT ON observations BEGIN
-						INSERT INTO observations_fts(rowid, title, subtitle, narrative)
-						VALUES (new.id, new.title, new.subtitle, new.narrative);
-					END`,
-					`CREATE TRIGGER IF NOT EXISTS observations_ad AFTER DELETE ON observations BEGIN
-						INSERT INTO observations_fts(observations_fts, rowid, title, subtitle, narrative)
-						VALUES('delete', old.id, old.title, old.subtitle, old.narrative);
-					END`,
-					`CREATE TRIGGER IF NOT EXISTS observations_au AFTER UPDATE ON observations BEGIN
-						INSERT INTO observations_fts(observations_fts, rowid, title, subtitle, narrative)
-						VALUES('delete', old.id, old.title, old.subtitle, old.narrative);
-						INSERT INTO observations_fts(rowid, title, subtitle, narrative)
-						VALUES (new.id, new.title, new.subtitle, new.narrative);
-					END`,
-				}
-				for _, s := range sqls {
-					if err := tx.Exec(s).Error; err != nil {
-						return err
-					}
-				}
-				return nil
-			},
-			Rollback: func(tx *gorm.DB) error {
-				sqls := []string{
-					"DROP TRIGGER IF EXISTS observations_au",
-					"DROP TRIGGER IF EXISTS observations_ad",
-					"DROP TRIGGER IF EXISTS observations_ai",
-					"DROP TABLE IF EXISTS observations_fts",
-				}
-				for _, s := range sqls {
-					if err := tx.Exec(s).Error; err != nil {
-						return err
-					}
-				}
-				return nil
-			},
-		},
-
-		// Migration 005: FTS5 virtual table for session summaries
-		{
-			ID: "005_session_summaries_fts",
-			Migrate: func(tx *gorm.DB) error {
-				sqls := []string{
-					`CREATE VIRTUAL TABLE IF NOT EXISTS session_summaries_fts USING fts5(
-						request, investigated, learned, completed, next_steps, notes,
-						content='session_summaries',
-						content_rowid='id'
-					)`,
-					`CREATE TRIGGER IF NOT EXISTS session_summaries_ai AFTER INSERT ON session_summaries BEGIN
-						INSERT INTO session_summaries_fts(rowid, request, investigated, learned, completed, next_steps, notes)
-						VALUES (new.id, new.request, new.investigated, new.learned, new.completed, new.next_steps, new.notes);
-					END`,
-					`CREATE TRIGGER IF NOT EXISTS session_summaries_ad AFTER DELETE ON session_summaries BEGIN
-						INSERT INTO session_summaries_fts(session_summaries_fts, rowid, request, investigated, learned, completed, next_steps, notes)
-						VALUES('delete', old.id, old.request, old.investigated, old.learned, old.completed, old.next_steps, old.notes);
-					END`,
-					`CREATE TRIGGER IF NOT EXISTS session_summaries_au AFTER UPDATE ON session_summaries BEGIN
-						INSERT INTO session_summaries_fts(session_summaries_fts, rowid, request, investigated, learned, completed, next_steps, notes)
-						VALUES('delete', old.id, old.request, old.investigated, old.learned, old.completed, old.next_steps, old.notes);
-						INSERT INTO session_summaries_fts(rowid, request, investigated, learned, completed, next_steps, notes)
-						VALUES (new.id, new.request, new.investigated, new.learned, new.completed, new.next_steps, new.notes);
-					END`,
-				}
-				for _, s := range sqls {
-					if err := tx.Exec(s).Error; err != nil {
-						return err
-					}
-				}
-				return nil
-			},
-			Rollback: func(tx *gorm.DB) error {
-				sqls := []string{
-					"DROP TRIGGER IF EXISTS session_summaries_au",
-					"DROP TRIGGER IF EXISTS session_summaries_ad",
-					"DROP TRIGGER IF EXISTS session_summaries_ai",
-					"DROP TABLE IF EXISTS session_summaries_fts",
-				}
-				for _, s := range sqls {
-					if err := tx.Exec(s).Error; err != nil {
-						return err
-					}
-				}
-				return nil
-			},
-		},
-
-		// Migration 006: sqlite-vec vectors table
-		{
-			ID: "006_sqlite_vec_vectors",
-			Migrate: func(tx *gorm.DB) error {
-				// Note: Uses bge-small-en-v1.5 embeddings (384 dimensions) with model_version
-				sql := `CREATE VIRTUAL TABLE IF NOT EXISTS vectors USING vec0(
-					doc_id TEXT PRIMARY KEY,
-					embedding float[384],
-					sqlite_id INTEGER,
-					doc_type TEXT,
-					field_type TEXT,
-					project TEXT,
-					scope TEXT,
-					model_version TEXT
-				)`
-				return tx.Exec(sql).Error
-			},
-			Rollback: func(tx *gorm.DB) error {
-				return tx.Exec("DROP TABLE IF EXISTS vectors").Error
-			},
-		},
-
-		// Migration 007: Concept weights table with seed data
-		{
-			ID: "007_concept_weights",
-			Migrate: func(tx *gorm.DB) error {
-				if err := tx.AutoMigrate(&ConceptWeight{}); err != nil {
-					return err
-				}
-
-				// Seed default concept weights
-				now := time.Now().Format(time.RFC3339)
-				weights := []ConceptWeight{
-					{Concept: "security", Weight: 0.30, UpdatedAt: now},
-					{Concept: "gotcha", Weight: 0.25, UpdatedAt: now},
-					{Concept: "best-practice", Weight: 0.20, UpdatedAt: now},
-					{Concept: "anti-pattern", Weight: 0.20, UpdatedAt: now},
-					{Concept: "architecture", Weight: 0.15, UpdatedAt: now},
-					{Concept: "performance", Weight: 0.15, UpdatedAt: now},
-					{Concept: "error-handling", Weight: 0.15, UpdatedAt: now},
-					{Concept: "pattern", Weight: 0.10, UpdatedAt: now},
-					{Concept: "testing", Weight: 0.10, UpdatedAt: now},
-					{Concept: "debugging", Weight: 0.10, UpdatedAt: now},
-					{Concept: "workflow", Weight: 0.05, UpdatedAt: now},
-					{Concept: "tooling", Weight: 0.05, UpdatedAt: now},
-				}
-
-				// INSERT OR IGNORE equivalent in GORM
-				return tx.Clauses(clause.OnConflict{DoNothing: true}).Create(&weights).Error
-			},
-			Rollback: func(tx *gorm.DB) error {
-				return tx.Migrator().DropTable("concept_weights")
-			},
-		},
-
-		// Migration 008: Observation conflicts table
-		{
-			ID: "008_observation_conflicts",
-			Migrate: func(tx *gorm.DB) error {
-				return tx.AutoMigrate(&ObservationConflict{})
-			},
-			Rollback: func(tx *gorm.DB) error {
-				return tx.Migrator().DropTable("observation_conflicts")
-			},
-		},
-
-		// Migration 009: Patterns table
-		{
-			ID: "009_patterns",
-			Migrate: func(tx *gorm.DB) error {
-				return tx.AutoMigrate(&Pattern{})
-			},
-			Rollback: func(tx *gorm.DB) error {
-				return tx.Migrator().DropTable("patterns")
-			},
-		},
-
-		// Migration 010: FTS5 virtual table for patterns
-		{
-			ID: "010_patterns_fts",
-			Migrate: func(tx *gorm.DB) error {
-				sqls := []string{
-					`CREATE VIRTUAL TABLE IF NOT EXISTS patterns_fts USING fts5(
-						name, description, recommendation,
-						content='patterns',
-						content_rowid='id'
-					)`,
-					`CREATE TRIGGER IF NOT EXISTS patterns_ai AFTER INSERT ON patterns BEGIN
-						INSERT INTO patterns_fts(rowid, name, description, recommendation)
-						VALUES (new.id, new.name, new.description, new.recommendation);
-					END`,
-					`CREATE TRIGGER IF NOT EXISTS patterns_ad AFTER DELETE ON patterns BEGIN
-						INSERT INTO patterns_fts(patterns_fts, rowid, name, description, recommendation)
-						VALUES('delete', old.id, old.name, old.description, old.recommendation);
-					END`,
-					`CREATE TRIGGER IF NOT EXISTS patterns_au AFTER UPDATE ON patterns BEGIN
-						INSERT INTO patterns_fts(patterns_fts, rowid, name, description, recommendation)
-						VALUES('delete', old.id, old.name, old.description, old.recommendation);
-						INSERT INTO patterns_fts(rowid, name, description, recommendation)
-						VALUES (new.id, new.name, new.description, new.recommendation);
-					END`,
-				}
-				for _, s := range sqls {
-					if err := tx.Exec(s).Error; err != nil {
-						return err
-					}
-				}
-				return nil
-			},
-			Rollback: func(tx *gorm.DB) error {
-				sqls := []string{
-					"DROP TRIGGER IF EXISTS patterns_au",
-					"DROP TRIGGER IF EXISTS patterns_ad",
-					"DROP TRIGGER IF EXISTS patterns_ai",
-					"DROP TABLE IF EXISTS patterns_fts",
-				}
-				for _, s := range sqls {
-					if err := tx.Exec(s).Error; err != nil {
-						return err
-					}
-				}
-				return nil
-			},
-		},
-
-		// Migration 011: Observation relations table
-		{
-			ID: "011_observation_relations",
-			Migrate: func(tx *gorm.DB) error {
-				return tx.AutoMigrate(&ObservationRelation{})
-			},
-			Rollback: func(tx *gorm.DB) error {
-				return tx.Migrator().DropTable("observation_relations")
-			},
-		},
-
-		// Migration 012: Query optimization indexes
-		// Adds covering and composite indexes for common query patterns
-		{
-			ID: "012_query_optimization_indexes",
-			Migrate: func(tx *gorm.DB) error {
-				sqls := []string{
-					// Composite index for observation queries by project + scope + importance
-					// Covers the common pattern: WHERE project = ? OR scope = 'global' ORDER BY importance_score DESC
-					`CREATE INDEX IF NOT EXISTS idx_observations_project_scope_importance
-					 ON observations(project, scope, importance_score DESC, created_at_epoch DESC)`,
-
-					// Covering index for observation retrieval (includes most used columns)
-					// Allows index-only scans for listing queries
-					`CREATE INDEX IF NOT EXISTS idx_observations_project_covering
-					 ON observations(project, scope, is_superseded, importance_score DESC)
-					 WHERE is_superseded = 0 OR is_superseded IS NULL`,
-
-					// Index for session summary lookups
-					`CREATE INDEX IF NOT EXISTS idx_summaries_project_importance
-					 ON session_summaries(project, importance_score DESC, created_at_epoch DESC)`,
-
-					// Index for prompt retrieval by session
-					`CREATE INDEX IF NOT EXISTS idx_prompts_session_number
-					 ON user_prompts(claude_session_id, prompt_number)`,
-
-					// Index for pattern queries by frequency
-					`CREATE INDEX IF NOT EXISTS idx_patterns_frequency
-					 ON patterns(frequency DESC, last_seen_at_epoch DESC)
-					 WHERE is_deprecated = 0`,
-				}
-				for _, s := range sqls {
-					if err := tx.Exec(s).Error; err != nil {
-						// Non-fatal: index may already exist or fail for benign reasons
-						continue
-					}
-				}
-				return nil
-			},
-			Rollback: func(tx *gorm.DB) error {
-				sqls := []string{
-					"DROP INDEX IF EXISTS idx_observations_project_scope_importance",
-					"DROP INDEX IF EXISTS idx_observations_project_covering",
-					"DROP INDEX IF EXISTS idx_summaries_project_importance",
-					"DROP INDEX IF EXISTS idx_prompts_session_number",
-					"DROP INDEX IF EXISTS idx_patterns_frequency",
-				}
-				for _, s := range sqls {
-					if err := tx.Exec(s).Error; err != nil {
-						continue
-					}
-				}
-				return nil
-			},
-		},
-
-		// Migration 013: Add archival columns to observations
-		{
-			ID: "013_observation_archival",
-			Migrate: func(tx *gorm.DB) error {
-				sqls := []string{
-					// Add archival columns
-					`ALTER TABLE observations ADD COLUMN is_archived INTEGER DEFAULT 0`,
-					`ALTER TABLE observations ADD COLUMN archived_at_epoch INTEGER`,
-					`ALTER TABLE observations ADD COLUMN archived_reason TEXT`,
-					// Index for archived observations
-					`CREATE INDEX IF NOT EXISTS idx_observations_archived ON observations(is_archived)`,
-					// Composite index for filtering active (non-archived) observations
-					`CREATE INDEX IF NOT EXISTS idx_observations_active
-					 ON observations(project, is_archived, is_superseded, importance_score DESC)
-					 WHERE (is_archived = 0 OR is_archived IS NULL)`,
-				}
-				for _, s := range sqls {
-					if err := tx.Exec(s).Error; err != nil {
-						// Non-fatal: column may already exist
-						continue
-					}
-				}
-				return nil
-			},
-			Rollback: func(tx *gorm.DB) error {
-				// SQLite doesn't support DROP COLUMN in older versions
-				// but for newer versions we can try
-				sqls := []string{
-					"DROP INDEX IF EXISTS idx_observations_active",
-					"DROP INDEX IF EXISTS idx_observations_archived",
-				}
-				for _, s := range sqls {
-					_ = tx.Exec(s).Error
-				}
-				return nil
-			},
-		},
-
-		// Migration 014: Add performance-critical indexes for common query patterns
-		{
-			ID: "014_performance_indexes",
-			Migrate: func(tx *gorm.DB) error {
-				sqls := []string{
-					// Index for batch ID lookups (IN queries)
-					`CREATE INDEX IF NOT EXISTS idx_observations_id_covering
-					 ON observations(id, project, scope, importance_score)`,
-
-					// Index for vector search result fetching
-					`CREATE INDEX IF NOT EXISTS idx_vectors_doc_type_project
-					 ON vectors(doc_type, project, scope)`,
-
-					// Index for session summaries by project
-					`CREATE INDEX IF NOT EXISTS idx_summaries_project_created
-					 ON session_summaries(project, created_at_epoch DESC)`,
-
-					// Index for user prompts by session
-					`CREATE INDEX IF NOT EXISTS idx_prompts_session_created
-					 ON user_prompts(claude_session_id, created_at_epoch DESC)`,
-
-					// Index for patterns by type and project
-					`CREATE INDEX IF NOT EXISTS idx_patterns_type_project
-					 ON patterns(type, project, frequency DESC)
-					 WHERE is_deprecated = 0`,
-
-					// Index for observation relations
-					`CREATE INDEX IF NOT EXISTS idx_relations_source_type
-					 ON observation_relations(source_observation_id, relation_type)`,
-					`CREATE INDEX IF NOT EXISTS idx_relations_target_type
-					 ON observation_relations(target_observation_id, relation_type)`,
-				}
-				for _, s := range sqls {
-					if err := tx.Exec(s).Error; err != nil {
-						// Non-fatal: index may already exist
-						continue
-					}
-				}
-				return nil
-			},
-			Rollback: func(tx *gorm.DB) error {
-				sqls := []string{
-					"DROP INDEX IF EXISTS idx_observations_id_covering",
-					"DROP INDEX IF EXISTS idx_vectors_doc_type_project",
-					"DROP INDEX IF EXISTS idx_summaries_project_created",
-					"DROP INDEX IF EXISTS idx_prompts_session_created",
-					"DROP INDEX IF EXISTS idx_patterns_type_project",
-					"DROP INDEX IF EXISTS idx_relations_source_type",
-					"DROP INDEX IF EXISTS idx_relations_target_type",
-				}
-				for _, s := range sqls {
-					_ = tx.Exec(s).Error
-				}
-				return nil
-			},
-		},
-
-		// Migration 015: Add optimized composite indexes for common query patterns
-		{
-			ID: "015_optimized_composite_indexes",
-			Migrate: func(tx *gorm.DB) error {
-				sqls := []string{
-					// Composite index for GetRecentObservations with project+scope filtering
-					// Covers: WHERE (project = ? OR scope = 'global') ORDER BY importance_score DESC, created_at_epoch DESC
-					`CREATE INDEX IF NOT EXISTS idx_observations_project_scope_created
-					 ON observations(project, scope, created_at_epoch DESC, importance_score DESC)`,
-
-					// Index for scope='global' queries (common pattern in search)
-					`CREATE INDEX IF NOT EXISTS idx_observations_global_scope
-					 ON observations(scope, importance_score DESC, created_at_epoch DESC)
-					 WHERE scope = 'global'`,
-
-					// Index for vector search result deduplication by observation
-					`CREATE INDEX IF NOT EXISTS idx_vectors_observation_lookup
-					 ON vectors(doc_type, sqlite_id, project)
-					 WHERE doc_type = 'observation'`,
-
-					// Index for FTS search result ordering
-					`CREATE INDEX IF NOT EXISTS idx_observations_fts_ordering
-					 ON observations(project, importance_score DESC)
-					 WHERE (is_archived = 0 OR is_archived IS NULL) AND (is_superseded = 0 OR is_superseded IS NULL)`,
-				}
-				for _, s := range sqls {
-					if err := tx.Exec(s).Error; err != nil {
-						// Non-fatal: index may already exist
-						continue
-					}
-				}
-				return nil
-			},
-			Rollback: func(tx *gorm.DB) error {
-				sqls := []string{
-					"DROP INDEX IF EXISTS idx_observations_project_scope_created",
-					"DROP INDEX IF EXISTS idx_observations_global_scope",
-					"DROP INDEX IF EXISTS idx_vectors_observation_lookup",
-					"DROP INDEX IF EXISTS idx_observations_fts_ordering",
-				}
-				for _, s := range sqls {
-					_ = tx.Exec(s).Error
-				}
-				return nil
-			},
-		},
-
-		// Migration 016: Add covering indexes for relation joins and active observations
-		{
-			ID: "016_relation_and_active_indexes",
-			Migrate: func(tx *gorm.DB) error {
-				sqls := []string{
-					// Covering index for observation relation joins (common JOIN patterns)
-					// Speeds up queries like: JOIN observation_relations ON source_id = obs.id WHERE relation_type = ?
-					`CREATE INDEX IF NOT EXISTS idx_relations_source_type_target
-					 ON observation_relations(source_observation_id, relation_type, target_observation_id)`,
-
-					// Covering index for reverse relation lookups
-					`CREATE INDEX IF NOT EXISTS idx_relations_target_type_source
-					 ON observation_relations(target_observation_id, relation_type, source_observation_id)`,
-
-					// Partial index for active (non-archived, non-superseded) observations
-					// Optimizes activeObservationFilter queries
-					`CREATE INDEX IF NOT EXISTS idx_observations_active
-					 ON observations(project, importance_score DESC, created_at_epoch DESC)
-					 WHERE (is_archived = 0 OR is_archived IS NULL) AND (is_superseded = 0 OR is_superseded IS NULL)`,
-				}
-				for _, s := range sqls {
-					if err := tx.Exec(s).Error; err != nil {
-						// Non-fatal: index may already exist
-						continue
-					}
-				}
-				return nil
-			},
-			Rollback: func(tx *gorm.DB) error {
-				sqls := []string{
-					"DROP INDEX IF EXISTS idx_relations_source_type_target",
-					"DROP INDEX IF EXISTS idx_relations_target_type_source",
-					"DROP INDEX IF EXISTS idx_observations_active",
-				}
-				for _, s := range sqls {
-					_ = tx.Exec(s).Error
-				}
-				return nil
-			},
-		},
-	})
-
-	if err := m.Migrate(); err != nil {
-		return fmt.Errorf("run gormigrate migrations: %w", err)
-	}
-
-	return nil
-}

internal/db/gorm/models.go

@@ -1,268 +0,0 @@
-// Package gorm provides GORM-based database operations for claude-mnemonic.
-package gorm
-
-import (
-	"database/sql"
-	"time"
-
-	"gorm.io/gorm"
-
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-)
-
-// GORM Models
-
-// Note: JSON types (JSONStringArray, JSONInt64Map) are imported from pkg/models
-// and already implement sql.Scanner and driver.Valuer interfaces.
-
-// SDKSession represents a Claude Code session.
-type SDKSession struct {
-	ClaudeSessionID  string         `gorm:"uniqueIndex;not null"`
-	Project          string         `gorm:"index;not null"`
-	Status           string         `gorm:"type:text;check:status IN ('active', 'completed', 'failed');default:'active';index"`
-	StartedAt        string         `gorm:"not null"`
-	SDKSessionID     sql.NullString `gorm:"uniqueIndex"`
-	UserPrompt       sql.NullString
-	CompletedAt      sql.NullString
-	WorkerPort       sql.NullInt64
-	CompletedAtEpoch sql.NullInt64
-	ID               int64 `gorm:"primaryKey;autoIncrement"`
-	PromptCounter    int   `gorm:"default:0"`
-	StartedAtEpoch   int64 `gorm:"index:idx_sessions_started,sort:desc;not null"`
-}
-
-func (SDKSession) TableName() string { return "sdk_sessions" }
-
-// BeforeCreate hook to ensure timestamps are set.
-func (s *SDKSession) BeforeCreate(tx *gorm.DB) error {
-	if s.StartedAtEpoch == 0 {
-		s.StartedAtEpoch = time.Now().UnixMilli()
-	}
-	if s.StartedAt == "" {
-		s.StartedAt = time.Now().Format(time.RFC3339)
-	}
-	return nil
-}
-
-// Observation represents a stored observation (learning).
-// Field order optimized for memory alignment (fieldalignment).
-type Observation struct {
-	FileMtimes      models.JSONInt64Map     `gorm:"type:text"`
-	SDKSessionID    string                  `gorm:"index;not null"`
-	Project         string                  `gorm:"index:idx_observations_project;index:idx_observations_project_created,priority:1;not null"`
-	Scope           models.ObservationScope `gorm:"type:text;default:'project';check:scope IN ('project', 'global');index:idx_observations_scope;index:idx_observations_project_scope,priority:2"`
-	Type            models.ObservationType  `gorm:"type:text;check:type IN ('decision', 'bugfix', 'feature', 'refactor', 'discovery', 'change');index;not null"`
-	CreatedAt       string                  `gorm:"not null"`
-	Facts           models.JSONStringArray  `gorm:"type:text"`
-	Narrative       sql.NullString          `gorm:"type:text"`
-	Concepts        models.JSONStringArray  `gorm:"type:text"`
-	FilesRead       models.JSONStringArray  `gorm:"type:text"`
-	FilesModified   models.JSONStringArray  `gorm:"type:text"`
-	Subtitle        sql.NullString          `gorm:"type:text"`
-	Title           sql.NullString          `gorm:"type:text"`
-	ArchivedReason  sql.NullString
-	ScoreUpdatedAt  sql.NullInt64 `gorm:"column:score_updated_at_epoch;index:idx_observations_score_updated"`
-	PromptNumber    sql.NullInt64
-	ArchivedAt      sql.NullInt64 `gorm:"column:archived_at_epoch"`
-	LastRetrievedAt sql.NullInt64 `gorm:"column:last_retrieved_at_epoch"`
-	ID              int64         `gorm:"primaryKey;autoIncrement"`
-	ImportanceScore float64       `gorm:"type:real;default:1.0;index:idx_observations_importance,priority:1,sort:desc"`
-	UserFeedback    int           `gorm:"default:0"`
-	RetrievalCount  int           `gorm:"default:0"`
-	CreatedAtEpoch  int64         `gorm:"index:idx_observations_created,sort:desc;index:idx_observations_project_created,priority:2,sort:desc;not null"`
-	DiscoveryTokens int64         `gorm:"default:0"`
-	IsSuperseded    int           `gorm:"default:0;index:idx_observations_superseded;index:idx_observations_active,priority:2"`
-	IsArchived      int           `gorm:"default:0;index:idx_observations_archived;index:idx_observations_active,priority:1"`
-}
-
-func (Observation) TableName() string { return "observations" }
-
-// BeforeCreate hook to ensure defaults are set.
-func (o *Observation) BeforeCreate(tx *gorm.DB) error {
-	if o.CreatedAtEpoch == 0 {
-		o.CreatedAtEpoch = time.Now().UnixMilli()
-	}
-	if o.CreatedAt == "" {
-		o.CreatedAt = time.Now().Format(time.RFC3339)
-	}
-	if o.ImportanceScore == 0 {
-		o.ImportanceScore = 1.0
-	}
-	return nil
-}
-
-// SessionSummary represents a session summary.
-type SessionSummary struct {
-	CreatedAt       string `gorm:"not null"`
-	SDKSessionID    string `gorm:"index;not null"`
-	Project         string `gorm:"index;not null"`
-	Completed       sql.NullString
-	Investigated    sql.NullString
-	Learned         sql.NullString
-	NextSteps       sql.NullString `gorm:"column:next_steps"`
-	Notes           sql.NullString
-	Request         sql.NullString
-	PromptNumber    sql.NullInt64
-	ID              int64 `gorm:"primaryKey;autoIncrement"`
-	DiscoveryTokens int64 `gorm:"default:0"`
-	CreatedAtEpoch  int64 `gorm:"index:idx_summaries_created,sort:desc;not null"`
-}
-
-func (SessionSummary) TableName() string { return "session_summaries" }
-
-// BeforeCreate hook to ensure timestamps are set.
-func (s *SessionSummary) BeforeCreate(tx *gorm.DB) error {
-	if s.CreatedAtEpoch == 0 {
-		s.CreatedAtEpoch = time.Now().UnixMilli()
-	}
-	if s.CreatedAt == "" {
-		s.CreatedAt = time.Now().Format(time.RFC3339)
-	}
-	return nil
-}
-
-// UserPrompt represents a user prompt.
-type UserPrompt struct {
-	ClaudeSessionID     string `gorm:"index;not null;uniqueIndex:idx_user_prompts_session_number_unique,priority:1"`
-	PromptText          string `gorm:"type:text;not null"`
-	CreatedAt           string `gorm:"not null"`
-	ID                  int64  `gorm:"primaryKey;autoIncrement"`
-	PromptNumber        int    `gorm:"index;not null;uniqueIndex:idx_user_prompts_session_number_unique,priority:2"`
-	MatchedObservations int    `gorm:"default:0"`
-	CreatedAtEpoch      int64  `gorm:"index:idx_prompts_created,sort:desc;not null"`
-}
-
-func (UserPrompt) TableName() string { return "user_prompts" }
-
-// BeforeCreate hook to ensure timestamps are set.
-func (p *UserPrompt) BeforeCreate(tx *gorm.DB) error {
-	if p.CreatedAtEpoch == 0 {
-		p.CreatedAtEpoch = time.Now().UnixMilli()
-	}
-	if p.CreatedAt == "" {
-		p.CreatedAt = time.Now().Format(time.RFC3339)
-	}
-	return nil
-}
-
-// ObservationConflict tracks conflicts between observations.
-type ObservationConflict struct {
-	ConflictType    models.ConflictType       `gorm:"type:text;check:conflict_type IN ('superseded', 'contradicts', 'outdated_pattern');not null"`
-	Resolution      models.ConflictResolution `gorm:"type:text;check:resolution IN ('prefer_newer', 'prefer_older', 'manual');not null"`
-	DetectedAt      string                    `gorm:"not null"`
-	Reason          sql.NullString            `gorm:"type:text"`
-	ResolvedAt      sql.NullString
-	ID              int64 `gorm:"primaryKey;autoIncrement"`
-	NewerObsID      int64 `gorm:"index:idx_conflicts_newer;not null"`
-	OlderObsID      int64 `gorm:"index:idx_conflicts_older;not null"`
-	DetectedAtEpoch int64 `gorm:"index:idx_conflicts_unresolved,priority:2,sort:desc;not null"`
-	Resolved        int   `gorm:"default:0;index:idx_conflicts_unresolved,priority:1"`
-}
-
-func (ObservationConflict) TableName() string { return "observation_conflicts" }
-
-// BeforeCreate hook to ensure timestamps are set.
-func (c *ObservationConflict) BeforeCreate(tx *gorm.DB) error {
-	if c.DetectedAtEpoch == 0 {
-		c.DetectedAtEpoch = time.Now().UnixMilli()
-	}
-	if c.DetectedAt == "" {
-		c.DetectedAt = time.Now().Format(time.RFC3339)
-	}
-	return nil
-}
-
-// ObservationRelation tracks relationships between observations.
-type ObservationRelation struct {
-	RelationType    models.RelationType            `gorm:"type:text;check:relation_type IN ('causes', 'fixes', 'supersedes', 'depends_on', 'relates_to', 'evolves_from');index:idx_relations_type;uniqueIndex:idx_relations_unique,priority:3;not null"`
-	DetectionSource models.RelationDetectionSource `gorm:"type:text;check:detection_source IN ('file_overlap', 'embedding_similarity', 'temporal_proximity', 'narrative_mention', 'concept_overlap', 'type_progression');not null"`
-	CreatedAt       string                         `gorm:"not null"`
-	Reason          sql.NullString                 `gorm:"type:text"`
-	ID              int64                          `gorm:"primaryKey;autoIncrement"`
-	SourceID        int64                          `gorm:"index:idx_relations_source;index:idx_relations_both,priority:1;uniqueIndex:idx_relations_unique,priority:1;not null"`
-	TargetID        int64                          `gorm:"index:idx_relations_target;index:idx_relations_both,priority:2;uniqueIndex:idx_relations_unique,priority:2;not null"`
-	Confidence      float64                        `gorm:"type:real;default:0.5;index:idx_relations_confidence,sort:desc;not null"`
-	CreatedAtEpoch  int64                          `gorm:"not null"`
-}
-
-func (ObservationRelation) TableName() string { return "observation_relations" }
-
-// BeforeCreate hook to ensure timestamps are set.
-func (r *ObservationRelation) BeforeCreate(tx *gorm.DB) error {
-	if r.CreatedAtEpoch == 0 {
-		r.CreatedAtEpoch = time.Now().UnixMilli()
-	}
-	if r.CreatedAt == "" {
-		r.CreatedAt = time.Now().Format(time.RFC3339)
-	}
-	if r.Confidence == 0 {
-		r.Confidence = 0.5
-	}
-	return nil
-}
-
-// Pattern represents a detected recurring pattern.
-type Pattern struct {
-	Status          models.PatternStatus   `gorm:"type:text;default:'active';check:status IN ('active', 'deprecated', 'merged');index"`
-	Name            string                 `gorm:"type:text;not null"`
-	Type            models.PatternType     `gorm:"type:text;check:type IN ('bug', 'refactor', 'architecture', 'anti-pattern', 'best-practice');index;not null"`
-	CreatedAt       string                 `gorm:"not null"`
-	LastSeenAt      string                 `gorm:"not null"`
-	Signature       models.JSONStringArray `gorm:"type:text"`
-	Projects        models.JSONStringArray `gorm:"type:text"`
-	ObservationIDs  models.JSONInt64Array  `gorm:"type:text"`
-	Recommendation  sql.NullString         `gorm:"type:text"`
-	Description     sql.NullString         `gorm:"type:text"`
-	MergedIntoID    sql.NullInt64
-	Frequency       int     `gorm:"default:1;index:idx_patterns_frequency,sort:desc"`
-	Confidence      float64 `gorm:"type:real;default:0.5;index:idx_patterns_confidence,sort:desc"`
-	ID              int64   `gorm:"primaryKey;autoIncrement"`
-	LastSeenAtEpoch int64   `gorm:"index:idx_patterns_last_seen,sort:desc;not null"`
-	CreatedAtEpoch  int64   `gorm:"not null"`
-}
-
-func (Pattern) TableName() string { return "patterns" }
-
-// BeforeCreate hook to ensure timestamps and defaults are set.
-func (p *Pattern) BeforeCreate(tx *gorm.DB) error {
-	now := time.Now()
-	if p.CreatedAtEpoch == 0 {
-		p.CreatedAtEpoch = now.UnixMilli()
-	}
-	if p.CreatedAt == "" {
-		p.CreatedAt = now.Format(time.RFC3339)
-	}
-	if p.LastSeenAtEpoch == 0 {
-		p.LastSeenAtEpoch = now.UnixMilli()
-	}
-	if p.LastSeenAt == "" {
-		p.LastSeenAt = now.Format(time.RFC3339)
-	}
-	if p.Confidence == 0 {
-		p.Confidence = 0.5
-	}
-	if p.Frequency == 0 {
-		p.Frequency = 1
-	}
-	return nil
-}
-
-// ConceptWeight stores configurable weights for importance scoring.
-type ConceptWeight struct {
-	Concept   string  `gorm:"primaryKey;type:text"`
-	UpdatedAt string  `gorm:"not null"`
-	Weight    float64 `gorm:"type:real;not null;default:0.1"`
-}
-
-func (ConceptWeight) TableName() string { return "concept_weights" }
-
-// BeforeCreate hook to ensure timestamp is set.
-func (c *ConceptWeight) BeforeCreate(tx *gorm.DB) error {
-	if c.UpdatedAt == "" {
-		c.UpdatedAt = time.Now().Format(time.RFC3339)
-	}
-	if c.Weight == 0 {
-		c.Weight = 0.1
-	}
-	return nil
-}

internal/db/gorm/observation_store_test.go

@@ -1,593 +0,0 @@
-//go:build fts5
-
-// Package gorm provides GORM-based database operations for claude-mnemonic.
-package gorm
-
-import (
-	"context"
-	"os"
-	"path/filepath"
-	"sync"
-	"testing"
-	"time"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"gorm.io/gorm/logger"
-
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-)
-
-// testObservationStore creates an ObservationStore with a temporary database for testing.
-func testObservationStore(t *testing.T) (*ObservationStore, *Store, func()) {
-	t.Helper()
-
-	tmpDir, err := os.MkdirTemp("", "gorm_observation_test_*")
-	if err != nil {
-		t.Fatalf("create temp dir: %v", err)
-	}
-
-	dbPath := filepath.Join(tmpDir, "test.db")
-	cfg := Config{
-		Path:     dbPath,
-		MaxConns: 4,
-		LogLevel: logger.Silent,
-	}
-
-	store, err := NewStore(cfg)
-	if err != nil {
-		os.RemoveAll(tmpDir)
-		t.Fatalf("NewStore failed: %v", err)
-	}
-
-	observationStore := NewObservationStore(store, nil, nil, nil)
-
-	cleanup := func() {
-		store.Close()
-		os.RemoveAll(tmpDir)
-	}
-
-	return observationStore, store, cleanup
-}
-
-func TestObservationStore_StoreObservation(t *testing.T) {
-	observationStore, store, cleanup := testObservationStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Create a session first
-	sessionStore := NewSessionStore(store)
-	_, err := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-	require.NoError(t, err)
-
-	// Store an observation
-	observation := &models.ParsedObservation{
-		Type:      models.ObsTypeDecision,
-		Title:     "User prefers tabs over spaces",
-		Narrative: "Observed in code formatting",
-		Concepts:  []string{"coding-style", "preferences"},
-	}
-
-	id, epoch, err := observationStore.StoreObservation(ctx, "claude-1", "test-project", observation, 1, 100)
-	require.NoError(t, err)
-	assert.Greater(t, id, int64(0))
-	assert.Greater(t, epoch, int64(0))
-}
-
-func TestObservationStore_StoreObservation_AutoCreateSession(t *testing.T) {
-	observationStore, _, cleanup := testObservationStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Store observation without pre-creating session
-	observation := &models.ParsedObservation{
-		Type:  models.ObsTypeDiscovery,
-		Title: "Test auto-create",
-	}
-
-	id, _, err := observationStore.StoreObservation(ctx, "claude-auto", "auto-project", observation, 1, 50)
-	require.NoError(t, err)
-	assert.Greater(t, id, int64(0))
-}
-
-func TestObservationStore_StoreObservation_WithScope(t *testing.T) {
-	observationStore, _, cleanup := testObservationStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	tests := []struct {
-		name          string
-		tags          []string
-		expectedScope models.ObservationScope
-	}{
-		{
-			name:          "Global scope - best practice",
-			tags:          []string{"best-practice", "testing"},
-			expectedScope: models.ScopeGlobal,
-		},
-		{
-			name:          "Global scope - security",
-			tags:          []string{"security", "auth"},
-			expectedScope: models.ScopeGlobal,
-		},
-		{
-			name:          "Project scope - specific feature",
-			tags:          []string{"feature", "implementation"},
-			expectedScope: models.ScopeProject,
-		},
-		{
-			name:          "Project scope - no tags",
-			tags:          []string{},
-			expectedScope: models.ScopeProject,
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			observation := &models.ParsedObservation{
-				Type:     models.ObsTypeDiscovery,
-				Title:    "Test scope determination",
-				Concepts: tt.tags,
-			}
-
-			id, _, err := observationStore.StoreObservation(ctx, "claude-1", "test-project", observation, 1, 50)
-			require.NoError(t, err)
-
-			// Verify scope was set correctly
-			observations, err := observationStore.GetObservationsByIDs(ctx, []int64{id}, "default", 10)
-			require.NoError(t, err)
-			require.Len(t, observations, 1)
-			assert.Equal(t, tt.expectedScope, observations[0].Scope)
-		})
-	}
-}
-
-func TestObservationStore_StoreObservation_AsyncCleanup(t *testing.T) {
-	observationStore, _, cleanup := testObservationStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Track cleanup calls
-	var cleanupMutex sync.Mutex
-	cleanupCalled := false
-	var cleanupIDs []int64
-
-	cleanupFunc := func(ctx context.Context, deletedIDs []int64) {
-		cleanupMutex.Lock()
-		defer cleanupMutex.Unlock()
-		cleanupCalled = true
-		cleanupIDs = deletedIDs
-	}
-
-	observationStore.cleanupFunc = cleanupFunc
-
-	// Store observations beyond the limit (MaxObservationsPerProject = 100)
-	for i := 0; i < 105; i++ {
-		observation := &models.ParsedObservation{
-			Type:  models.ObsTypeDiscovery,
-			Title: "Observation",
-		}
-		_, _, err := observationStore.StoreObservation(ctx, "claude-1", "test-project", observation, i, 50)
-		require.NoError(t, err)
-	}
-
-	// Wait for async cleanup to complete
-	time.Sleep(200 * time.Millisecond)
-
-	// Verify cleanup was called
-	cleanupMutex.Lock()
-	defer cleanupMutex.Unlock()
-	assert.True(t, cleanupCalled, "Cleanup function should have been called")
-	assert.NotEmpty(t, cleanupIDs, "Cleanup should have deleted some observations")
-}
-
-func TestObservationStore_GetObservationsByIDs(t *testing.T) {
-	observationStore, _, cleanup := testObservationStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Store multiple observations with different importance scores
-	var ids []int64
-	for i := 1; i <= 3; i++ {
-		observation := &models.ParsedObservation{
-			Type:  models.ObsTypeDiscovery,
-			Title: "Test",
-		}
-		id, _, err := observationStore.StoreObservation(ctx, "claude-1", "test-project", observation, i, 10)
-		require.NoError(t, err)
-		ids = append(ids, id)
-
-		// Update importance score directly
-		observationStore.db.Model(&Observation{}).Where("id = ?", id).Update("importance_score", float64(i))
-		time.Sleep(10 * time.Millisecond) // Ensure different timestamps
-	}
-
-	tests := []struct {
-		name     string
-		orderBy  string
-		expected []int64
-	}{
-		{
-			name:     "Default ordering - importance desc",
-			orderBy:  "default",
-			expected: []int64{ids[2], ids[1], ids[0]}, // High to low importance
-		},
-		{
-			name:     "Importance ordering",
-			orderBy:  "importance",
-			expected: []int64{ids[2], ids[1], ids[0]},
-		},
-		{
-			name:     "Date ascending",
-			orderBy:  "date_asc",
-			expected: []int64{ids[0], ids[1], ids[2]}, // Oldest to newest
-		},
-		{
-			name:     "Date descending",
-			orderBy:  "date_desc",
-			expected: []int64{ids[2], ids[1], ids[0]}, // Newest to oldest
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			observations, err := observationStore.GetObservationsByIDs(ctx, ids, tt.orderBy, 10)
-			require.NoError(t, err)
-			require.Len(t, observations, 3)
-
-			// Verify ordering
-			for i, obs := range observations {
-				assert.Equal(t, tt.expected[i], obs.ID, "Position %d should have ID %d", i, tt.expected[i])
-			}
-		})
-	}
-}
-
-func TestObservationStore_GetObservationsByIDs_Limit(t *testing.T) {
-	observationStore, _, cleanup := testObservationStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Store multiple observations
-	var ids []int64
-	for i := 1; i <= 5; i++ {
-		observation := &models.ParsedObservation{
-			Type:  models.ObsTypeDiscovery,
-			Title: "Test",
-		}
-		id, _, err := observationStore.StoreObservation(ctx, "claude-1", "test-project", observation, i, 10)
-		require.NoError(t, err)
-		ids = append(ids, id)
-	}
-
-	// Get with limit
-	observations, err := observationStore.GetObservationsByIDs(ctx, ids, "default", 3)
-	require.NoError(t, err)
-	assert.Len(t, observations, 3)
-}
-
-func TestObservationStore_GetObservationsByIDs_EmptyInput(t *testing.T) {
-	observationStore, _, cleanup := testObservationStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Get with empty IDs
-	observations, err := observationStore.GetObservationsByIDs(ctx, []int64{}, "default", 10)
-	require.NoError(t, err)
-	assert.Nil(t, observations)
-}
-
-func TestObservationStore_GetRecentObservations(t *testing.T) {
-	observationStore, _, cleanup := testObservationStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Store project-scoped observations
-	for i := 1; i <= 3; i++ {
-		observation := &models.ParsedObservation{
-			Type:  models.ObsTypeDiscovery,
-			Title: "Project A fact",
-		}
-		_, _, err := observationStore.StoreObservation(ctx, "claude-1", "project-a", observation, i, 10)
-		require.NoError(t, err)
-	}
-
-	// Store global-scoped observation
-	observation := &models.ParsedObservation{
-		Type:     models.ObsTypeDiscovery,
-		Title:    "Global best practice",
-		Concepts: []string{"best-practice"},
-	}
-	_, _, err := observationStore.StoreObservation(ctx, "claude-2", "project-b", observation, 1, 10)
-	require.NoError(t, err)
-
-	// Store observation for different project
-	observation = &models.ParsedObservation{
-		Type:  models.ObsTypeDiscovery,
-		Title: "Project B fact",
-	}
-	_, _, err = observationStore.StoreObservation(ctx, "claude-2", "project-b", observation, 2, 10)
-	require.NoError(t, err)
-
-	// Wait for any async cleanup to complete before querying
-	time.Sleep(100 * time.Millisecond)
-
-	// Get recent observations for project-a (should include project-a + global)
-	observations, err := observationStore.GetRecentObservations(ctx, "project-a", 10)
-	require.NoError(t, err)
-	assert.Len(t, observations, 4) // 3 project-a + 1 global
-
-	// Verify scope filtering
-	projectCount := 0
-	globalCount := 0
-	for _, obs := range observations {
-		if obs.Scope == models.ScopeProject {
-			assert.Equal(t, "project-a", obs.Project)
-			projectCount++
-		} else if obs.Scope == models.ScopeGlobal {
-			globalCount++
-		}
-	}
-	assert.Equal(t, 3, projectCount)
-	assert.Equal(t, 1, globalCount)
-}
-
-func TestObservationStore_GetActiveObservations(t *testing.T) {
-	observationStore, _, cleanup := testObservationStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Store active observation
-	activeObs := &models.ParsedObservation{
-		Type:  models.ObsTypeDiscovery,
-		Title: "Active observation",
-	}
-	activeID, _, err := observationStore.StoreObservation(ctx, "claude-1", "test-project", activeObs, 1, 10)
-	require.NoError(t, err)
-
-	// Store superseded observation
-	supersededObs := &models.ParsedObservation{
-		Type:  models.ObsTypeDiscovery,
-		Title: "Superseded observation",
-	}
-	supersededID, _, err := observationStore.StoreObservation(ctx, "claude-1", "test-project", supersededObs, 2, 10)
-	require.NoError(t, err)
-
-	// Mark as superseded
-	observationStore.db.Model(&Observation{}).Where("id = ?", supersededID).Update("is_superseded", 1)
-
-	// Get active observations (should exclude superseded)
-	observations, err := observationStore.GetActiveObservations(ctx, "test-project", 10)
-	require.NoError(t, err)
-	assert.Len(t, observations, 1)
-	assert.Equal(t, activeID, observations[0].ID)
-	assert.False(t, observations[0].IsSuperseded)
-}
-
-func TestObservationStore_GetSupersededObservations(t *testing.T) {
-	observationStore, _, cleanup := testObservationStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Store active observation
-	activeObs := &models.ParsedObservation{
-		Type:  models.ObsTypeDiscovery,
-		Title: "Active observation",
-	}
-	_, _, err := observationStore.StoreObservation(ctx, "claude-1", "test-project", activeObs, 1, 10)
-	require.NoError(t, err)
-
-	// Store superseded observation
-	supersededObs := &models.ParsedObservation{
-		Type:  models.ObsTypeDiscovery,
-		Title: "Superseded observation",
-	}
-	supersededID, _, err := observationStore.StoreObservation(ctx, "claude-1", "test-project", supersededObs, 2, 10)
-	require.NoError(t, err)
-
-	// Mark as superseded
-	observationStore.db.Model(&Observation{}).Where("id = ?", supersededID).Update("is_superseded", 1)
-
-	// Get superseded observations (should exclude active)
-	observations, err := observationStore.GetSupersededObservations(ctx, "test-project", 10)
-	require.NoError(t, err)
-	assert.Len(t, observations, 1)
-	assert.Equal(t, supersededID, observations[0].ID)
-	assert.True(t, observations[0].IsSuperseded)
-}
-
-func TestObservationStore_GetObservationsByProjectStrict(t *testing.T) {
-	observationStore, _, cleanup := testObservationStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Store project-scoped observations
-	for i := 1; i <= 2; i++ {
-		observation := &models.ParsedObservation{
-			Type:  models.ObsTypeDiscovery,
-			Title: "Project A fact",
-		}
-		_, _, err := observationStore.StoreObservation(ctx, "claude-1", "project-a", observation, i, 10)
-		require.NoError(t, err)
-	}
-
-	// Store global-scoped observation
-	observation := &models.ParsedObservation{
-		Type:     models.ObsTypeDiscovery,
-		Title:    "Global best practice",
-		Concepts: []string{"best-practice"},
-	}
-	_, _, err := observationStore.StoreObservation(ctx, "claude-2", "project-b", observation, 1, 10)
-	require.NoError(t, err)
-
-	// Get strict project observations (should exclude global)
-	observations, err := observationStore.GetObservationsByProjectStrict(ctx, "project-a", 10)
-	require.NoError(t, err)
-	assert.Len(t, observations, 2) // Only project-a observations
-
-	// Verify all are project-scoped
-	for _, obs := range observations {
-		assert.Equal(t, models.ScopeProject, obs.Scope)
-		assert.Equal(t, "project-a", obs.Project)
-	}
-}
-
-func TestObservationStore_SearchObservationsFTS(t *testing.T) {
-	observationStore, _, cleanup := testObservationStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Store observations with searchable content
-	observations := []*models.ParsedObservation{
-		{
-			Type:     models.ObsTypeDiscovery,
-			Title:    "User prefers React for frontend development",
-			Concepts: []string{"frontend", "react"},
-		},
-		{
-			Type:     models.ObsTypeDiscovery,
-			Title:    "Backend uses Go with chi router",
-			Concepts: []string{"backend", "golang"},
-		},
-		{
-			Type:     models.ObsTypeDiscovery,
-			Title:    "Database is SQLite with FTS5",
-			Concepts: []string{"database", "sqlite"},
-		},
-	}
-
-	for i, obs := range observations {
-		_, _, err := observationStore.StoreObservation(ctx, "claude-1", "test-project", obs, i+1, 10)
-		require.NoError(t, err)
-	}
-
-	// Wait for FTS5 triggers to fire
-	time.Sleep(200 * time.Millisecond)
-
-	// Search for "React frontend"
-	results, err := observationStore.SearchObservationsFTS(ctx, "React frontend", "test-project", 10)
-	require.NoError(t, err)
-	assert.NotEmpty(t, results, "Should find observations matching 'React frontend'")
-
-	// Verify results contain relevant observation
-	found := false
-	for _, obs := range results {
-		if obs.Title.String == "User prefers React for frontend development" {
-			found = true
-			break
-		}
-	}
-	assert.True(t, found, "Should find the React observation")
-}
-
-func TestObservationStore_CleanupOldObservations(t *testing.T) {
-	observationStore, _, cleanup := testObservationStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Store observations beyond the limit WITHOUT async cleanup
-	// We disable async cleanup by not setting cleanupFunc
-	var allIDs []int64
-	for i := 0; i < 105; i++ {
-		observation := &models.ParsedObservation{
-			Type:  models.ObsTypeDiscovery,
-			Title: "Observation",
-		}
-		id, _, err := observationStore.StoreObservation(ctx, "claude-1", "test-project", observation, i, 10)
-		require.NoError(t, err)
-		allIDs = append(allIDs, id)
-		time.Sleep(2 * time.Millisecond) // Ensure different timestamps
-	}
-
-	// Wait for any async cleanups to complete (even though cleanupFunc is nil)
-	time.Sleep(200 * time.Millisecond)
-
-	// Verify we have 105 observations initially (async cleanup should have run but deleted items)
-	initial, err := observationStore.GetRecentObservations(ctx, "test-project", 200)
-	require.NoError(t, err)
-
-	// If async cleanup already happened, we'll have <= 100
-	// Run cleanup manually to ensure cleanup logic works
-	deletedIDs, err := observationStore.CleanupOldObservations(ctx, "test-project")
-	require.NoError(t, err)
-
-	// After cleanup (manual or async), we should have at most 100
-	remaining, err := observationStore.GetRecentObservations(ctx, "test-project", 200)
-	require.NoError(t, err)
-	assert.LessOrEqual(t, len(remaining), 100, "Should have at most 100 observations after cleanup")
-
-	// The number deleted should match how many were over the limit
-	expectedDeleted := len(initial) - len(remaining)
-	assert.Len(t, deletedIDs, expectedDeleted, "Should delete observations beyond limit")
-}
-
-func TestObservationStore_DeleteObservations(t *testing.T) {
-	observationStore, _, cleanup := testObservationStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Store multiple observations
-	var ids []int64
-	for i := 1; i <= 5; i++ {
-		observation := &models.ParsedObservation{
-			Type:  models.ObsTypeDiscovery,
-			Title: "Test",
-		}
-		id, _, err := observationStore.StoreObservation(ctx, "claude-1", "test-project", observation, i, 10)
-		require.NoError(t, err)
-		ids = append(ids, id)
-	}
-
-	// Delete first 3 observations
-	_, err := observationStore.DeleteObservations(ctx, ids[:3])
-	require.NoError(t, err)
-
-	// Verify only 2 remain
-	remaining, err := observationStore.GetRecentObservations(ctx, "test-project", 10)
-	require.NoError(t, err)
-	assert.Len(t, remaining, 2)
-
-	// Verify deleted observations are gone
-	deleted, err := observationStore.GetObservationsByIDs(ctx, ids[:3], "default", 10)
-	require.NoError(t, err)
-	assert.Empty(t, deleted)
-}
-
-// Note: TestObservationStore_MarkObservationsSuperseded is omitted because
-// MarkObservationsSuperseded is a ConflictStore method (Phase 4), not ObservationStore
-
-func TestObservationStore_GetAllObservations(t *testing.T) {
-	observationStore, _, cleanup := testObservationStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Store observations across projects
-	_, _, err := observationStore.StoreObservation(ctx, "claude-1", "project-a", &models.ParsedObservation{Type: models.ObsTypeDiscovery, Title: "A1"}, 1, 10)
-	require.NoError(t, err)
-
-	_, _, err = observationStore.StoreObservation(ctx, "claude-2", "project-b", &models.ParsedObservation{Type: models.ObsTypeDiscovery, Title: "B1"}, 1, 10)
-	require.NoError(t, err)
-
-	// Get all observations (for vector rebuild)
-	all, err := observationStore.GetAllObservations(ctx)
-	require.NoError(t, err)
-	assert.Len(t, all, 2)
-
-	// Verify ordering by ID
-	assert.Less(t, all[0].ID, all[1].ID)
-}

internal/db/gorm/pattern_store.go

@@ -1,420 +0,0 @@
-// Package gorm provides GORM-based database operations for claude-mnemonic.
-package gorm
-
-import (
-	"context"
-	"database/sql"
-	"time"
-
-	"gorm.io/gorm"
-
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-)
-
-// PatternCleanupFunc is a callback for when patterns are deleted.
-type PatternCleanupFunc func(ctx context.Context, deletedIDs []int64)
-
-// PatternStore provides pattern-related database operations using GORM.
-type PatternStore struct {
-	db          *gorm.DB
-	cleanupFunc PatternCleanupFunc
-}
-
-// NewPatternStore creates a new pattern store.
-func NewPatternStore(store *Store) *PatternStore {
-	return &PatternStore{
-		db: store.DB,
-	}
-}
-
-// SetCleanupFunc sets the callback for when patterns are deleted.
-func (s *PatternStore) SetCleanupFunc(fn PatternCleanupFunc) {
-	s.cleanupFunc = fn
-}
-
-// StorePattern stores a new pattern.
-func (s *PatternStore) StorePattern(ctx context.Context, pattern *models.Pattern) (int64, error) {
-	dbPattern := &Pattern{
-		Name:            pattern.Name,
-		Type:            pattern.Type,
-		Signature:       pattern.Signature,
-		Frequency:       pattern.Frequency,
-		Projects:        pattern.Projects,
-		ObservationIDs:  pattern.ObservationIDs,
-		Status:          pattern.Status,
-		Confidence:      pattern.Confidence,
-		LastSeenAt:      pattern.LastSeenAt,
-		LastSeenAtEpoch: pattern.LastSeenEpoch,
-		CreatedAt:       pattern.CreatedAt,
-		CreatedAtEpoch:  pattern.CreatedAtEpoch,
-	}
-
-	if pattern.Description.Valid {
-		dbPattern.Description = sql.NullString{String: pattern.Description.String, Valid: true}
-	}
-
-	if pattern.Recommendation.Valid {
-		dbPattern.Recommendation = sql.NullString{String: pattern.Recommendation.String, Valid: true}
-	}
-
-	if pattern.MergedIntoID.Valid {
-		dbPattern.MergedIntoID = sql.NullInt64{Int64: pattern.MergedIntoID.Int64, Valid: true}
-	}
-
-	result := s.db.WithContext(ctx).Create(dbPattern)
-	if result.Error != nil {
-		return 0, result.Error
-	}
-
-	return dbPattern.ID, nil
-}
-
-// UpdatePattern updates an existing pattern.
-func (s *PatternStore) UpdatePattern(ctx context.Context, pattern *models.Pattern) error {
-	updates := map[string]interface{}{
-		"name":               pattern.Name,
-		"type":               pattern.Type,
-		"signature":          pattern.Signature,
-		"frequency":          pattern.Frequency,
-		"projects":           pattern.Projects,
-		"observation_ids":    pattern.ObservationIDs,
-		"status":             pattern.Status,
-		"confidence":         pattern.Confidence,
-		"last_seen_at":       pattern.LastSeenAt,
-		"last_seen_at_epoch": pattern.LastSeenEpoch,
-	}
-
-	if pattern.Description.Valid {
-		updates["description"] = pattern.Description.String
-	} else {
-		updates["description"] = nil
-	}
-
-	if pattern.Recommendation.Valid {
-		updates["recommendation"] = pattern.Recommendation.String
-	} else {
-		updates["recommendation"] = nil
-	}
-
-	if pattern.MergedIntoID.Valid {
-		updates["merged_into_id"] = pattern.MergedIntoID.Int64
-	} else {
-		updates["merged_into_id"] = nil
-	}
-
-	result := s.db.WithContext(ctx).
-		Model(&Pattern{}).
-		Where("id = ?", pattern.ID).
-		Updates(updates)
-
-	return result.Error
-}
-
-// GetPatternByID retrieves a pattern by ID.
-func (s *PatternStore) GetPatternByID(ctx context.Context, id int64) (*models.Pattern, error) {
-	var dbPattern Pattern
-
-	err := s.db.WithContext(ctx).First(&dbPattern, id).Error
-	if err == gorm.ErrRecordNotFound {
-		return nil, nil
-	}
-	if err != nil {
-		return nil, err
-	}
-
-	return toModelPattern(&dbPattern), nil
-}
-
-// GetPatternByName retrieves a pattern by name.
-func (s *PatternStore) GetPatternByName(ctx context.Context, name string) (*models.Pattern, error) {
-	var dbPattern Pattern
-
-	err := s.db.WithContext(ctx).
-		Where("name = ? AND status = ?", name, models.PatternStatusActive).
-		First(&dbPattern).Error
-
-	if err == gorm.ErrRecordNotFound {
-		return nil, nil
-	}
-	if err != nil {
-		return nil, err
-	}
-
-	return toModelPattern(&dbPattern), nil
-}
-
-// GetActivePatterns retrieves all active patterns.
-func (s *PatternStore) GetActivePatterns(ctx context.Context, limit int) ([]*models.Pattern, error) {
-	var patterns []Pattern
-
-	err := s.db.WithContext(ctx).
-		Where("status = ?", models.PatternStatusActive).
-		Order("frequency DESC, confidence DESC").
-		Limit(limit).
-		Find(&patterns).Error
-
-	if err != nil {
-		return nil, err
-	}
-
-	return toModelPatterns(patterns), nil
-}
-
-// GetPatternsByType retrieves patterns of a specific type.
-func (s *PatternStore) GetPatternsByType(ctx context.Context, patternType models.PatternType, limit int) ([]*models.Pattern, error) {
-	var patterns []Pattern
-
-	err := s.db.WithContext(ctx).
-		Where("type = ? AND status = ?", patternType, models.PatternStatusActive).
-		Order("frequency DESC, confidence DESC").
-		Limit(limit).
-		Find(&patterns).Error
-
-	if err != nil {
-		return nil, err
-	}
-
-	return toModelPatterns(patterns), nil
-}
-
-// GetPatternsByProject retrieves patterns that have been observed in a specific project.
-// Uses raw SQL since JSON_EACH is complex in GORM.
-func (s *PatternStore) GetPatternsByProject(ctx context.Context, project string, limit int) ([]*models.Pattern, error) {
-	var patterns []Pattern
-
-	// Use raw SQL for JSON_EACH query
-	query := `
-		SELECT * FROM patterns
-		WHERE status = 'active'
-		AND EXISTS (
-			SELECT 1 FROM json_each(projects)
-			WHERE json_each.value = ?
-		)
-		ORDER BY frequency DESC, confidence DESC
-		LIMIT ?
-	`
-
-	err := s.db.WithContext(ctx).
-		Raw(query, project, limit).
-		Scan(&patterns).Error
-
-	if err != nil {
-		return nil, err
-	}
-
-	return toModelPatterns(patterns), nil
-}
-
-// FindMatchingPatterns searches for patterns that match a given signature.
-// Pattern matching is done in Go code for simplicity.
-func (s *PatternStore) FindMatchingPatterns(ctx context.Context, signature []string, minScore float64) ([]*models.Pattern, error) {
-	// Get all active patterns
-	patterns, err := s.GetActivePatterns(ctx, 100)
-	if err != nil {
-		return nil, err
-	}
-
-	// Filter by signature match in Go
-	var matches []*models.Pattern
-	for _, pattern := range patterns {
-		score := models.CalculateMatchScore(signature, pattern.Signature)
-		if score >= minScore {
-			matches = append(matches, pattern)
-		}
-	}
-
-	return matches, nil
-}
-
-// MarkPatternDeprecated marks a pattern as deprecated.
-func (s *PatternStore) MarkPatternDeprecated(ctx context.Context, id int64) error {
-	result := s.db.WithContext(ctx).
-		Model(&Pattern{}).
-		Where("id = ?", id).
-		Update("status", models.PatternStatusDeprecated)
-
-	return result.Error
-}
-
-// MergePatterns merges a source pattern into a target pattern.
-func (s *PatternStore) MergePatterns(ctx context.Context, sourceID, targetID int64) error {
-	// Get both patterns
-	source, err := s.GetPatternByID(ctx, sourceID)
-	if err != nil {
-		return err
-	}
-	target, err := s.GetPatternByID(ctx, targetID)
-	if err != nil {
-		return err
-	}
-
-	// Merge source into target
-	target.Frequency += source.Frequency
-
-	// Merge projects (deduplicate)
-	for _, proj := range source.Projects {
-		found := false
-		for _, existing := range target.Projects {
-			if existing == proj {
-				found = true
-				break
-			}
-		}
-		if !found {
-			target.Projects = append(target.Projects, proj)
-		}
-	}
-
-	// Merge observation IDs (deduplicate)
-	for _, obsID := range source.ObservationIDs {
-		found := false
-		for _, existing := range target.ObservationIDs {
-			if existing == obsID {
-				found = true
-				break
-			}
-		}
-		if !found {
-			target.ObservationIDs = append(target.ObservationIDs, obsID)
-		}
-	}
-
-	// Update target
-	if err := s.UpdatePattern(ctx, target); err != nil {
-		return err
-	}
-
-	// Mark source as merged
-	source.Status = models.PatternStatusMerged
-	source.MergedIntoID = sql.NullInt64{Int64: targetID, Valid: true}
-	return s.UpdatePattern(ctx, source)
-}
-
-// DeletePattern deletes a pattern by ID.
-func (s *PatternStore) DeletePattern(ctx context.Context, id int64) error {
-	result := s.db.WithContext(ctx).Delete(&Pattern{}, id)
-
-	if result.Error == nil && s.cleanupFunc != nil {
-		s.cleanupFunc(ctx, []int64{id})
-	}
-
-	return result.Error
-}
-
-// SearchPatternsFTS performs full-text search on patterns.
-// Uses raw SQL for FTS5 query.
-func (s *PatternStore) SearchPatternsFTS(ctx context.Context, searchQuery string, limit int) ([]*models.Pattern, error) {
-	var patterns []Pattern
-
-	// Use raw SQL for FTS5 MATCH query
-	query := `
-		SELECT p.*
-		FROM patterns p
-		JOIN patterns_fts fts ON p.id = fts.rowid
-		WHERE patterns_fts MATCH ?
-		AND p.status = 'active'
-		ORDER BY rank
-		LIMIT ?
-	`
-
-	err := s.db.WithContext(ctx).
-		Raw(query, searchQuery, limit).
-		Scan(&patterns).Error
-
-	if err != nil {
-		return nil, err
-	}
-
-	return toModelPatterns(patterns), nil
-}
-
-// PatternStats contains aggregate statistics about patterns.
-type PatternStats struct {
-	Total            int     `json:"total"`
-	Active           int     `json:"active"`
-	Deprecated       int     `json:"deprecated"`
-	Merged           int     `json:"merged"`
-	TotalOccurrences int     `json:"total_occurrences"`
-	AvgConfidence    float64 `json:"avg_confidence"`
-	Bugs             int     `json:"bugs"`
-	Refactors        int     `json:"refactors"`
-	Architectures    int     `json:"architectures"`
-	AntiPatterns     int     `json:"anti_patterns"`
-	BestPractices    int     `json:"best_practices"`
-}
-
-// GetPatternStats returns statistics about patterns.
-// Uses raw SQL for complex aggregate query.
-func (s *PatternStore) GetPatternStats(ctx context.Context) (*PatternStats, error) {
-	var stats PatternStats
-
-	query := `
-		SELECT
-			COUNT(*) as total,
-			COUNT(CASE WHEN status = 'active' THEN 1 END) as active,
-			COUNT(CASE WHEN status = 'deprecated' THEN 1 END) as deprecated,
-			COUNT(CASE WHEN status = 'merged' THEN 1 END) as merged,
-			COALESCE(SUM(frequency), 0) as total_occurrences,
-			COALESCE(AVG(confidence), 0) as avg_confidence,
-			COUNT(CASE WHEN type = 'bug' THEN 1 END) as bugs,
-			COUNT(CASE WHEN type = 'refactor' THEN 1 END) as refactors,
-			COUNT(CASE WHEN type = 'architecture' THEN 1 END) as architectures,
-			COUNT(CASE WHEN type = 'anti-pattern' THEN 1 END) as anti_patterns,
-			COUNT(CASE WHEN type = 'best-practice' THEN 1 END) as best_practices
-		FROM patterns
-	`
-
-	err := s.db.WithContext(ctx).Raw(query).Scan(&stats).Error
-	return &stats, err
-}
-
-// IncrementPatternFrequency atomically increments a pattern's frequency and updates last_seen.
-func (s *PatternStore) IncrementPatternFrequency(ctx context.Context, id int64, project string, observationID int64) error {
-	now := time.Now()
-
-	// Get current pattern
-	pattern, err := s.GetPatternByID(ctx, id)
-	if err != nil {
-		return err
-	}
-
-	// Add occurrence
-	pattern.AddOccurrence(project, observationID)
-	pattern.LastSeenAt = now.Format(time.RFC3339)
-	pattern.LastSeenEpoch = now.UnixMilli()
-
-	return s.UpdatePattern(ctx, pattern)
-}
-
-// toModelPattern converts a GORM Pattern to a pkg/models Pattern.
-func toModelPattern(p *Pattern) *models.Pattern {
-	pattern := &models.Pattern{
-		ID:             p.ID,
-		Name:           p.Name,
-		Type:           p.Type,
-		Description:    p.Description,
-		Signature:      p.Signature,
-		Recommendation: p.Recommendation,
-		Frequency:      p.Frequency,
-		Projects:       p.Projects,
-		ObservationIDs: p.ObservationIDs,
-		Status:         p.Status,
-		MergedIntoID:   p.MergedIntoID,
-		Confidence:     p.Confidence,
-		LastSeenAt:     p.LastSeenAt,
-		LastSeenEpoch:  p.LastSeenAtEpoch,
-		CreatedAt:      p.CreatedAt,
-		CreatedAtEpoch: p.CreatedAtEpoch,
-	}
-
-	return pattern
-}
-
-// toModelPatterns converts a slice of GORM Patterns to pkg/models Patterns.
-func toModelPatterns(patterns []Pattern) []*models.Pattern {
-	result := make([]*models.Pattern, len(patterns))
-	for i, p := range patterns {
-		result[i] = toModelPattern(&p)
-	}
-	return result
-}

internal/db/gorm/pattern_store_test.go

@@ -1,485 +0,0 @@
-//go:build fts5
-
-// Package gorm provides GORM-based database operations for claude-mnemonic.
-package gorm
-
-import (
-	"context"
-	"database/sql"
-	"os"
-	"path/filepath"
-	"testing"
-	"time"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"gorm.io/gorm/logger"
-
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-)
-
-func testPatternStore(t *testing.T) (*PatternStore, *Store, func()) {
-	t.Helper()
-
-	tmpDir, err := os.MkdirTemp("", "gorm_pattern_test_*")
-	if err != nil {
-		t.Fatalf("create temp dir: %v", err)
-	}
-
-	dbPath := filepath.Join(tmpDir, "test.db")
-	cfg := Config{
-		Path:     dbPath,
-		MaxConns: 4,
-		LogLevel: logger.Silent,
-	}
-
-	store, err := NewStore(cfg)
-	if err != nil {
-		os.RemoveAll(tmpDir)
-		t.Fatalf("NewStore failed: %v", err)
-	}
-
-	patternStore := NewPatternStore(store)
-
-	cleanup := func() {
-		store.Close()
-		os.RemoveAll(tmpDir)
-	}
-
-	return patternStore, store, cleanup
-}
-
-func TestPatternStore_StorePattern(t *testing.T) {
-	patternStore, _, cleanup := testPatternStore(t)
-	defer cleanup()
-	ctx := context.Background()
-
-	now := time.Now()
-	pattern := &models.Pattern{
-		Name:           "Test Pattern",
-		Type:           models.PatternTypeBug,
-		Description:    sql.NullString{String: "Test description", Valid: true},
-		Signature:      []string{"bug", "error"},
-		Recommendation: sql.NullString{String: "Fix it", Valid: true},
-		Frequency:      1,
-		Projects:       []string{"test-project"},
-		ObservationIDs: []int64{1, 2, 3},
-		Status:         models.PatternStatusActive,
-		Confidence:     0.8,
-		LastSeenAt:     now.Format(time.RFC3339),
-		LastSeenEpoch:  now.UnixMilli(),
-		CreatedAt:      now.Format(time.RFC3339),
-		CreatedAtEpoch: now.UnixMilli(),
-	}
-
-	id, err := patternStore.StorePattern(ctx, pattern)
-	require.NoError(t, err)
-	assert.Greater(t, id, int64(0))
-
-	// Verify pattern was stored
-	retrieved, err := patternStore.GetPatternByID(ctx, id)
-	require.NoError(t, err)
-	assert.Equal(t, pattern.Name, retrieved.Name)
-	assert.Equal(t, pattern.Type, retrieved.Type)
-	assert.Equal(t, pattern.Signature, retrieved.Signature)
-	assert.Equal(t, pattern.Frequency, retrieved.Frequency)
-	assert.Equal(t, pattern.Status, retrieved.Status)
-	assert.Equal(t, pattern.Confidence, retrieved.Confidence)
-}
-
-func TestPatternStore_UpdatePattern(t *testing.T) {
-	patternStore, _, cleanup := testPatternStore(t)
-	defer cleanup()
-	ctx := context.Background()
-
-	now := time.Now()
-	pattern := &models.Pattern{
-		Name:           "Original",
-		Type:           models.PatternTypeBug,
-		Frequency:      1,
-		Status:         models.PatternStatusActive,
-		Confidence:     0.5,
-		LastSeenAt:     now.Format(time.RFC3339),
-		LastSeenEpoch:  now.UnixMilli(),
-		CreatedAt:      now.Format(time.RFC3339),
-		CreatedAtEpoch: now.UnixMilli(),
-	}
-
-	id, err := patternStore.StorePattern(ctx, pattern)
-	require.NoError(t, err)
-
-	// Update pattern
-	pattern.ID = id
-	pattern.Name = "Updated"
-	pattern.Frequency = 5
-	pattern.Confidence = 0.9
-
-	err = patternStore.UpdatePattern(ctx, pattern)
-	require.NoError(t, err)
-
-	// Verify update
-	retrieved, err := patternStore.GetPatternByID(ctx, id)
-	require.NoError(t, err)
-	assert.Equal(t, "Updated", retrieved.Name)
-	assert.Equal(t, 5, retrieved.Frequency)
-	assert.Equal(t, 0.9, retrieved.Confidence)
-}
-
-func TestPatternStore_GetPatternByName(t *testing.T) {
-	patternStore, _, cleanup := testPatternStore(t)
-	defer cleanup()
-	ctx := context.Background()
-
-	now := time.Now()
-	pattern := &models.Pattern{
-		Name:           "Unique Pattern",
-		Type:           models.PatternTypeRefactor,
-		Frequency:      1,
-		Status:         models.PatternStatusActive,
-		Confidence:     0.7,
-		LastSeenAt:     now.Format(time.RFC3339),
-		LastSeenEpoch:  now.UnixMilli(),
-		CreatedAt:      now.Format(time.RFC3339),
-		CreatedAtEpoch: now.UnixMilli(),
-	}
-
-	_, err := patternStore.StorePattern(ctx, pattern)
-	require.NoError(t, err)
-
-	// Retrieve by name
-	retrieved, err := patternStore.GetPatternByName(ctx, "Unique Pattern")
-	require.NoError(t, err)
-	require.NotNil(t, retrieved)
-	assert.Equal(t, "Unique Pattern", retrieved.Name)
-	assert.Equal(t, models.PatternTypeRefactor, retrieved.Type)
-
-	// Non-existent pattern
-	notFound, err := patternStore.GetPatternByName(ctx, "Nonexistent")
-	require.NoError(t, err)
-	assert.Nil(t, notFound)
-}
-
-func TestPatternStore_GetActivePatterns(t *testing.T) {
-	patternStore, _, cleanup := testPatternStore(t)
-	defer cleanup()
-	ctx := context.Background()
-
-	now := time.Now()
-
-	// Create active patterns
-	for i := 0; i < 3; i++ {
-		pattern := &models.Pattern{
-			Name:           "Pattern " + string(rune('A'+i)),
-			Type:           models.PatternTypeBug,
-			Frequency:      i + 1, // Different frequencies for sorting
-			Status:         models.PatternStatusActive,
-			Confidence:     0.8,
-			LastSeenAt:     now.Format(time.RFC3339),
-			LastSeenEpoch:  now.UnixMilli(),
-			CreatedAt:      now.Format(time.RFC3339),
-			CreatedAtEpoch: now.UnixMilli(),
-		}
-		_, err := patternStore.StorePattern(ctx, pattern)
-		require.NoError(t, err)
-	}
-
-	// Create deprecated pattern (should not be included)
-	deprecatedPattern := &models.Pattern{
-		Name:           "Deprecated Pattern",
-		Type:           models.PatternTypeBug,
-		Frequency:      100,
-		Status:         models.PatternStatusDeprecated,
-		Confidence:     0.9,
-		LastSeenAt:     now.Format(time.RFC3339),
-		LastSeenEpoch:  now.UnixMilli(),
-		CreatedAt:      now.Format(time.RFC3339),
-		CreatedAtEpoch: now.UnixMilli(),
-	}
-	_, err := patternStore.StorePattern(ctx, deprecatedPattern)
-	require.NoError(t, err)
-
-	// Get active patterns
-	patterns, err := patternStore.GetActivePatterns(ctx, 10)
-	require.NoError(t, err)
-	assert.Len(t, patterns, 3) // Only active patterns
-
-	// Verify sorted by frequency DESC
-	assert.Equal(t, 3, patterns[0].Frequency)
-	assert.Equal(t, 2, patterns[1].Frequency)
-	assert.Equal(t, 1, patterns[2].Frequency)
-}
-
-func TestPatternStore_GetPatternsByType(t *testing.T) {
-	patternStore, _, cleanup := testPatternStore(t)
-	defer cleanup()
-	ctx := context.Background()
-
-	now := time.Now()
-
-	// Create patterns of different types
-	bugPattern := &models.Pattern{
-		Name:           "Bug Pattern",
-		Type:           models.PatternTypeBug,
-		Frequency:      1,
-		Status:         models.PatternStatusActive,
-		Confidence:     0.8,
-		LastSeenAt:     now.Format(time.RFC3339),
-		LastSeenEpoch:  now.UnixMilli(),
-		CreatedAt:      now.Format(time.RFC3339),
-		CreatedAtEpoch: now.UnixMilli(),
-	}
-	_, err := patternStore.StorePattern(ctx, bugPattern)
-	require.NoError(t, err)
-
-	refactorPattern := &models.Pattern{
-		Name:           "Refactor Pattern",
-		Type:           models.PatternTypeRefactor,
-		Frequency:      1,
-		Status:         models.PatternStatusActive,
-		Confidence:     0.7,
-		LastSeenAt:     now.Format(time.RFC3339),
-		LastSeenEpoch:  now.UnixMilli(),
-		CreatedAt:      now.Format(time.RFC3339),
-		CreatedAtEpoch: now.UnixMilli(),
-	}
-	_, err = patternStore.StorePattern(ctx, refactorPattern)
-	require.NoError(t, err)
-
-	// Get only bug patterns
-	bugPatterns, err := patternStore.GetPatternsByType(ctx, models.PatternTypeBug, 10)
-	require.NoError(t, err)
-	assert.Len(t, bugPatterns, 1)
-	assert.Equal(t, "Bug Pattern", bugPatterns[0].Name)
-	assert.Equal(t, models.PatternTypeBug, bugPatterns[0].Type)
-
-	// Get only refactor patterns
-	refactorPatterns, err := patternStore.GetPatternsByType(ctx, models.PatternTypeRefactor, 10)
-	require.NoError(t, err)
-	assert.Len(t, refactorPatterns, 1)
-	assert.Equal(t, "Refactor Pattern", refactorPatterns[0].Name)
-}
-
-func TestPatternStore_MarkPatternDeprecated(t *testing.T) {
-	patternStore, _, cleanup := testPatternStore(t)
-	defer cleanup()
-	ctx := context.Background()
-
-	now := time.Now()
-	pattern := &models.Pattern{
-		Name:           "To Deprecate",
-		Type:           models.PatternTypeBug,
-		Frequency:      1,
-		Status:         models.PatternStatusActive,
-		Confidence:     0.5,
-		LastSeenAt:     now.Format(time.RFC3339),
-		LastSeenEpoch:  now.UnixMilli(),
-		CreatedAt:      now.Format(time.RFC3339),
-		CreatedAtEpoch: now.UnixMilli(),
-	}
-
-	id, err := patternStore.StorePattern(ctx, pattern)
-	require.NoError(t, err)
-
-	// Mark as deprecated
-	err = patternStore.MarkPatternDeprecated(ctx, id)
-	require.NoError(t, err)
-
-	// Verify status changed
-	retrieved, err := patternStore.GetPatternByID(ctx, id)
-	require.NoError(t, err)
-	assert.Equal(t, models.PatternStatusDeprecated, retrieved.Status)
-}
-
-func TestPatternStore_MergePatterns(t *testing.T) {
-	patternStore, _, cleanup := testPatternStore(t)
-	defer cleanup()
-	ctx := context.Background()
-
-	now := time.Now()
-
-	// Create source pattern
-	source := &models.Pattern{
-		Name:           "Source Pattern",
-		Type:           models.PatternTypeBug,
-		Frequency:      5,
-		Projects:       []string{"project-a", "project-b"},
-		ObservationIDs: []int64{1, 2, 3},
-		Status:         models.PatternStatusActive,
-		Confidence:     0.7,
-		LastSeenAt:     now.Format(time.RFC3339),
-		LastSeenEpoch:  now.UnixMilli(),
-		CreatedAt:      now.Format(time.RFC3339),
-		CreatedAtEpoch: now.UnixMilli(),
-	}
-	sourceID, err := patternStore.StorePattern(ctx, source)
-	require.NoError(t, err)
-
-	// Create target pattern
-	target := &models.Pattern{
-		Name:           "Target Pattern",
-		Type:           models.PatternTypeBug,
-		Frequency:      10,
-		Projects:       []string{"project-b", "project-c"},
-		ObservationIDs: []int64{3, 4, 5},
-		Status:         models.PatternStatusActive,
-		Confidence:     0.8,
-		LastSeenAt:     now.Format(time.RFC3339),
-		LastSeenEpoch:  now.UnixMilli(),
-		CreatedAt:      now.Format(time.RFC3339),
-		CreatedAtEpoch: now.UnixMilli(),
-	}
-	targetID, err := patternStore.StorePattern(ctx, target)
-	require.NoError(t, err)
-
-	// Merge source into target
-	err = patternStore.MergePatterns(ctx, sourceID, targetID)
-	require.NoError(t, err)
-
-	// Verify target was updated
-	mergedTarget, err := patternStore.GetPatternByID(ctx, targetID)
-	require.NoError(t, err)
-	assert.Equal(t, 15, mergedTarget.Frequency) // 5 + 10
-	assert.ElementsMatch(t, []string{"project-a", "project-b", "project-c"}, mergedTarget.Projects)
-	assert.ElementsMatch(t, []int64{1, 2, 3, 4, 5}, mergedTarget.ObservationIDs)
-
-	// Verify source was marked as merged
-	mergedSource, err := patternStore.GetPatternByID(ctx, sourceID)
-	require.NoError(t, err)
-	assert.Equal(t, models.PatternStatusMerged, mergedSource.Status)
-	assert.True(t, mergedSource.MergedIntoID.Valid)
-	assert.Equal(t, targetID, mergedSource.MergedIntoID.Int64)
-}
-
-func TestPatternStore_DeletePattern(t *testing.T) {
-	patternStore, _, cleanup := testPatternStore(t)
-	defer cleanup()
-	ctx := context.Background()
-
-	now := time.Now()
-	pattern := &models.Pattern{
-		Name:           "To Delete",
-		Type:           models.PatternTypeBug,
-		Frequency:      1,
-		Status:         models.PatternStatusActive,
-		Confidence:     0.5,
-		LastSeenAt:     now.Format(time.RFC3339),
-		LastSeenEpoch:  now.UnixMilli(),
-		CreatedAt:      now.Format(time.RFC3339),
-		CreatedAtEpoch: now.UnixMilli(),
-	}
-
-	id, err := patternStore.StorePattern(ctx, pattern)
-	require.NoError(t, err)
-
-	// Delete pattern
-	err = patternStore.DeletePattern(ctx, id)
-	require.NoError(t, err)
-
-	// Verify deleted
-	deleted, err := patternStore.GetPatternByID(ctx, id)
-	require.NoError(t, err)
-	assert.Nil(t, deleted)
-}
-
-func TestPatternStore_IncrementPatternFrequency(t *testing.T) {
-	patternStore, _, cleanup := testPatternStore(t)
-	defer cleanup()
-	ctx := context.Background()
-
-	now := time.Now()
-	pattern := &models.Pattern{
-		Name:           "Frequency Test",
-		Type:           models.PatternTypeBug,
-		Frequency:      1,
-		Projects:       []string{"project-a"},
-		ObservationIDs: []int64{},
-		Status:         models.PatternStatusActive,
-		Confidence:     0.7,
-		LastSeenAt:     now.Format(time.RFC3339),
-		LastSeenEpoch:  now.UnixMilli(),
-		CreatedAt:      now.Format(time.RFC3339),
-		CreatedAtEpoch: now.UnixMilli(),
-	}
-
-	id, err := patternStore.StorePattern(ctx, pattern)
-	require.NoError(t, err)
-
-	// Increment frequency with new project and observation
-	err = patternStore.IncrementPatternFrequency(ctx, id, "project-b", 42)
-	require.NoError(t, err)
-
-	// Verify frequency incremented and new data added
-	updated, err := patternStore.GetPatternByID(ctx, id)
-	require.NoError(t, err)
-	assert.Equal(t, 2, updated.Frequency)
-	assert.ElementsMatch(t, []string{"project-a", "project-b"}, updated.Projects)
-	assert.Contains(t, updated.ObservationIDs, int64(42))
-
-	// Last seen should be updated (rough check - within last 5 seconds)
-	updatedTime, _ := time.Parse(time.RFC3339, updated.LastSeenAt)
-	assert.WithinDuration(t, time.Now(), updatedTime, 5*time.Second)
-}
-
-func TestPatternStore_GetPatternStats(t *testing.T) {
-	patternStore, _, cleanup := testPatternStore(t)
-	defer cleanup()
-	ctx := context.Background()
-
-	now := time.Now()
-
-	// Create patterns with different statuses and types
-	patterns := []*models.Pattern{
-		{
-			Name:           "Bug 1",
-			Type:           models.PatternTypeBug,
-			Frequency:      10,
-			Status:         models.PatternStatusActive,
-			Confidence:     0.8,
-			LastSeenAt:     now.Format(time.RFC3339),
-			LastSeenEpoch:  now.UnixMilli(),
-			CreatedAt:      now.Format(time.RFC3339),
-			CreatedAtEpoch: now.UnixMilli(),
-		},
-		{
-			Name:           "Refactor 1",
-			Type:           models.PatternTypeRefactor,
-			Frequency:      5,
-			Status:         models.PatternStatusActive,
-			Confidence:     0.7,
-			LastSeenAt:     now.Format(time.RFC3339),
-			LastSeenEpoch:  now.UnixMilli(),
-			CreatedAt:      now.Format(time.RFC3339),
-			CreatedAtEpoch: now.UnixMilli(),
-		},
-		{
-			Name:           "Deprecated 1",
-			Type:           models.PatternTypeBestPractice,
-			Frequency:      3,
-			Status:         models.PatternStatusDeprecated,
-			Confidence:     0.6,
-			LastSeenAt:     now.Format(time.RFC3339),
-			LastSeenEpoch:  now.UnixMilli(),
-			CreatedAt:      now.Format(time.RFC3339),
-			CreatedAtEpoch: now.UnixMilli(),
-		},
-	}
-
-	for _, p := range patterns {
-		_, err := patternStore.StorePattern(ctx, p)
-		require.NoError(t, err)
-	}
-
-	// Get stats
-	stats, err := patternStore.GetPatternStats(ctx)
-	require.NoError(t, err)
-
-	assert.Equal(t, 3, stats.Total)
-	assert.Equal(t, 2, stats.Active)
-	assert.Equal(t, 1, stats.Deprecated)
-	assert.Equal(t, 0, stats.Merged)
-	assert.Equal(t, 18, stats.TotalOccurrences)       // 10 + 5 + 3
-	assert.InDelta(t, 0.7, stats.AvgConfidence, 0.05) // (0.8 + 0.7 + 0.6) / 3
-	assert.Equal(t, 1, stats.Bugs)
-	assert.Equal(t, 1, stats.Refactors)
-	assert.Equal(t, 1, stats.BestPractices)
-}

internal/db/gorm/prompt_store.go

@@ -1,317 +0,0 @@
-// Package gorm provides GORM-based database operations for claude-mnemonic.
-package gorm
-
-import (
-	"context"
-	"database/sql"
-	"time"
-
-	"gorm.io/gorm"
-	"gorm.io/gorm/clause"
-
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-)
-
-// PromptCleanupFunc is a callback for when prompts are cleaned up.
-// Receives the IDs of deleted prompts for downstream cleanup (e.g., vector DB).
-type PromptCleanupFunc func(ctx context.Context, deletedIDs []int64)
-
-// MaxPromptsGlobal is the hard limit of prompts across all projects.
-const MaxPromptsGlobal = 500
-
-// PromptStore provides user prompt-related database operations using GORM.
-type PromptStore struct {
-	db          *gorm.DB
-	cleanupFunc PromptCleanupFunc
-}
-
-// NewPromptStore creates a new prompt store.
-func NewPromptStore(store *Store, cleanupFunc PromptCleanupFunc) *PromptStore {
-	return &PromptStore{
-		db:          store.DB,
-		cleanupFunc: cleanupFunc,
-	}
-}
-
-// SetCleanupFunc sets the callback for when prompts are deleted during cleanup.
-func (s *PromptStore) SetCleanupFunc(fn PromptCleanupFunc) {
-	s.cleanupFunc = fn
-}
-
-// SaveUserPromptWithMatches saves a user prompt with matched observation count.
-// Uses INSERT OR IGNORE to be idempotent - duplicate (session, prompt_number) pairs are silently ignored.
-// This prevents duplicate prompts when the user-prompt hook fires multiple times.
-func (s *PromptStore) SaveUserPromptWithMatches(ctx context.Context, claudeSessionID string, promptNumber int, promptText string, matchedObservations int) (int64, error) {
-	now := time.Now()
-
-	prompt := &UserPrompt{
-		ClaudeSessionID:     claudeSessionID,
-		PromptNumber:        promptNumber,
-		PromptText:          promptText,
-		MatchedObservations: matchedObservations,
-		CreatedAt:           now.Format(time.RFC3339),
-		CreatedAtEpoch:      now.UnixMilli(),
-	}
-
-	// INSERT OR IGNORE using OnConflict
-	result := s.db.WithContext(ctx).
-		Clauses(clause.OnConflict{
-			Columns:   []clause.Column{{Name: "claude_session_id"}, {Name: "prompt_number"}},
-			DoNothing: true,
-		}).
-		Create(prompt)
-
-	if result.Error != nil {
-		return 0, result.Error
-	}
-
-	// If RowsAffected is 0, the insert was ignored (duplicate) - fetch the existing ID
-	if result.RowsAffected == 0 {
-		var existing UserPrompt
-		err := s.db.Where("claude_session_id = ? AND prompt_number = ?", claudeSessionID, promptNumber).
-			First(&existing).Error
-		if err != nil {
-			return 0, err
-		}
-		// Return existing ID without triggering cleanup (already handled when first inserted)
-		return existing.ID, nil
-	}
-
-	// Cleanup old prompts beyond the global limit (async to not block handler)
-	go func() {
-		cleanupCtx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
-		defer cancel()
-		deletedIDs, _ := s.CleanupOldPrompts(cleanupCtx)
-		if len(deletedIDs) > 0 && s.cleanupFunc != nil {
-			s.cleanupFunc(cleanupCtx, deletedIDs)
-		}
-	}()
-
-	return prompt.ID, nil
-}
-
-// CleanupOldPrompts deletes prompts beyond the global limit.
-// Keeps the most recent MaxPromptsGlobal prompts.
-// Returns the IDs of deleted prompts for downstream cleanup (e.g., vector DB).
-func (s *PromptStore) CleanupOldPrompts(ctx context.Context) ([]int64, error) {
-	// Use a transaction to prevent TOCTOU race condition
-	var idsToDelete []int64
-
-	err := s.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
-		// Find IDs to keep (most recent MaxPromptsGlobal)
-		var idsToKeep []int64
-		err := tx.Model(&UserPrompt{}).
-			Order("created_at_epoch DESC").
-			Limit(MaxPromptsGlobal).
-			Pluck("id", &idsToKeep).Error
-
-		if err != nil {
-			return err
-		}
-
-		if len(idsToKeep) == 0 {
-			return nil
-		}
-
-		// Find IDs to delete (all IDs not in the keep list)
-		// This happens in the same transaction to prevent race conditions
-		err = tx.Model(&UserPrompt{}).
-			Where("id NOT IN ?", idsToKeep).
-			Pluck("id", &idsToDelete).Error
-
-		if err != nil {
-			return err
-		}
-
-		if len(idsToDelete) == 0 {
-			return nil
-		}
-
-		// Delete the prompts
-		return tx.Delete(&UserPrompt{}, idsToDelete).Error
-	})
-
-	if err != nil {
-		return nil, err
-	}
-
-	return idsToDelete, nil
-}
-
-// GetPromptsByIDs retrieves user prompts by a list of IDs.
-func (s *PromptStore) GetPromptsByIDs(ctx context.Context, ids []int64, orderBy string, limit int) ([]*models.UserPromptWithSession, error) {
-	if len(ids) == 0 {
-		return nil, nil
-	}
-
-	var results []struct {
-		Project      sql.NullString `gorm:"column:project"`
-		SDKSessionID sql.NullString `gorm:"column:sdk_session_id"`
-		UserPrompt
-	}
-
-	query := s.db.WithContext(ctx).
-		Table("user_prompts up").
-		Select("up.id, up.claude_session_id, up.prompt_number, up.prompt_text, "+
-			"COALESCE(up.matched_observations, 0) as matched_observations, "+
-			"up.created_at, up.created_at_epoch, "+
-			"COALESCE(s.project, '') as project, "+
-			"COALESCE(s.sdk_session_id, '') as sdk_session_id").
-		Joins("LEFT JOIN sdk_sessions s ON up.claude_session_id = s.claude_session_id").
-		Where("up.id IN ?", ids)
-
-	// Apply ordering
-	switch orderBy {
-	case "date_asc":
-		query = query.Order("up.created_at_epoch ASC")
-	case "date_desc", "default", "":
-		query = query.Order("up.created_at_epoch DESC")
-	}
-
-	// Apply limit
-	if limit > 0 {
-		query = query.Limit(limit)
-	}
-
-	err := query.Scan(&results).Error
-	if err != nil {
-		return nil, err
-	}
-
-	return toModelUserPromptsWithSession(results), nil
-}
-
-// GetAllRecentUserPrompts retrieves recent user prompts across all projects.
-func (s *PromptStore) GetAllRecentUserPrompts(ctx context.Context, limit int) ([]*models.UserPromptWithSession, error) {
-	var results []struct {
-		Project      sql.NullString `gorm:"column:project"`
-		SDKSessionID sql.NullString `gorm:"column:sdk_session_id"`
-		UserPrompt
-	}
-
-	query := s.db.WithContext(ctx).
-		Table("user_prompts up").
-		Select("up.id, up.claude_session_id, up.prompt_number, up.prompt_text, " +
-			"COALESCE(up.matched_observations, 0) as matched_observations, " +
-			"up.created_at, up.created_at_epoch, " +
-			"COALESCE(s.project, '') as project, " +
-			"COALESCE(s.sdk_session_id, '') as sdk_session_id").
-		Joins("LEFT JOIN sdk_sessions s ON up.claude_session_id = s.claude_session_id").
-		Order("up.created_at_epoch DESC").
-		Limit(limit)
-
-	err := query.Scan(&results).Error
-	if err != nil {
-		return nil, err
-	}
-
-	return toModelUserPromptsWithSession(results), nil
-}
-
-// GetAllPrompts retrieves all user prompts (for vector rebuild).
-func (s *PromptStore) GetAllPrompts(ctx context.Context) ([]*models.UserPromptWithSession, error) {
-	var results []struct {
-		Project      sql.NullString `gorm:"column:project"`
-		SDKSessionID sql.NullString `gorm:"column:sdk_session_id"`
-		UserPrompt
-	}
-
-	query := s.db.WithContext(ctx).
-		Table("user_prompts up").
-		Select("up.id, up.claude_session_id, up.prompt_number, up.prompt_text, " +
-			"COALESCE(up.matched_observations, 0) as matched_observations, " +
-			"up.created_at, up.created_at_epoch, " +
-			"COALESCE(s.project, '') as project, " +
-			"COALESCE(s.sdk_session_id, '') as sdk_session_id").
-		Joins("LEFT JOIN sdk_sessions s ON up.claude_session_id = s.claude_session_id").
-		Order("up.id")
-
-	err := query.Scan(&results).Error
-	if err != nil {
-		return nil, err
-	}
-
-	return toModelUserPromptsWithSession(results), nil
-}
-
-// FindRecentPromptByText finds a recent prompt by exact text match within a time window.
-// Returns (promptID, promptNumber, found).
-func (s *PromptStore) FindRecentPromptByText(ctx context.Context, claudeSessionID, promptText string, withinSeconds int) (int64, int, bool) {
-	cutoffEpoch := time.Now().Add(-time.Duration(withinSeconds) * time.Second).UnixMilli()
-
-	var prompt UserPrompt
-	err := s.db.WithContext(ctx).
-		Where("claude_session_id = ? AND prompt_text = ? AND created_at_epoch >= ?",
-			claudeSessionID, promptText, cutoffEpoch).
-		Order("created_at_epoch DESC").
-		First(&prompt).Error
-
-	if err != nil {
-		return 0, 0, false
-	}
-
-	return prompt.ID, prompt.PromptNumber, true
-}
-
-// GetRecentUserPromptsByProject retrieves recent user prompts for a specific project.
-func (s *PromptStore) GetRecentUserPromptsByProject(ctx context.Context, project string, limit int) ([]*models.UserPromptWithSession, error) {
-	var results []struct {
-		Project      sql.NullString `gorm:"column:project"`
-		SDKSessionID sql.NullString `gorm:"column:sdk_session_id"`
-		UserPrompt
-	}
-
-	query := s.db.WithContext(ctx).
-		Table("user_prompts up").
-		Select("up.id, up.claude_session_id, up.prompt_number, up.prompt_text, "+
-			"COALESCE(up.matched_observations, 0) as matched_observations, "+
-			"up.created_at, up.created_at_epoch, "+
-			"COALESCE(s.project, '') as project, "+
-			"COALESCE(s.sdk_session_id, '') as sdk_session_id").
-		Joins("LEFT JOIN sdk_sessions s ON up.claude_session_id = s.claude_session_id").
-		Where("s.project = ?", project).
-		Order("up.created_at_epoch DESC").
-		Limit(limit)
-
-	err := query.Scan(&results).Error
-	if err != nil {
-		return nil, err
-	}
-
-	return toModelUserPromptsWithSession(results), nil
-}
-
-// toModelUserPromptsWithSession converts query results to pkg/models.UserPromptWithSession.
-func toModelUserPromptsWithSession(results []struct {
-	Project      sql.NullString `gorm:"column:project"`
-	SDKSessionID sql.NullString `gorm:"column:sdk_session_id"`
-	UserPrompt
-}) []*models.UserPromptWithSession {
-	prompts := make([]*models.UserPromptWithSession, len(results))
-	for i, r := range results {
-		project := ""
-		if r.Project.Valid {
-			project = r.Project.String
-		}
-
-		sdkSessionID := ""
-		if r.SDKSessionID.Valid {
-			sdkSessionID = r.SDKSessionID.String
-		}
-
-		prompts[i] = &models.UserPromptWithSession{
-			UserPrompt: models.UserPrompt{
-				ID:                  r.ID,
-				ClaudeSessionID:     r.ClaudeSessionID,
-				PromptNumber:        r.PromptNumber,
-				PromptText:          r.PromptText,
-				MatchedObservations: r.MatchedObservations,
-				CreatedAt:           r.CreatedAt,
-				CreatedAtEpoch:      r.CreatedAtEpoch,
-			},
-			Project:      project,
-			SDKSessionID: sdkSessionID,
-		}
-	}
-	return prompts
-}

internal/db/gorm/prompt_store_test.go

@@ -1,396 +0,0 @@
-//go:build fts5
-
-// Package gorm provides GORM-based database operations for claude-mnemonic.
-package gorm
-
-import (
-	"context"
-	"os"
-	"path/filepath"
-	"sync"
-	"testing"
-	"time"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"gorm.io/gorm/logger"
-)
-
-// testPromptStore creates a PromptStore with a temporary database for testing.
-func testPromptStore(t *testing.T) (*PromptStore, *Store, func()) {
-	t.Helper()
-
-	tmpDir, err := os.MkdirTemp("", "gorm_prompt_test_*")
-	if err != nil {
-		t.Fatalf("create temp dir: %v", err)
-	}
-
-	dbPath := filepath.Join(tmpDir, "test.db")
-	cfg := Config{
-		Path:     dbPath,
-		MaxConns: 4,
-		LogLevel: logger.Silent,
-	}
-
-	store, err := NewStore(cfg)
-	if err != nil {
-		os.RemoveAll(tmpDir)
-		t.Fatalf("NewStore failed: %v", err)
-	}
-
-	promptStore := NewPromptStore(store, nil)
-
-	cleanup := func() {
-		store.Close()
-		os.RemoveAll(tmpDir)
-	}
-
-	return promptStore, store, cleanup
-}
-
-func TestPromptStore_SaveUserPromptWithMatches(t *testing.T) {
-	promptStore, store, cleanup := testPromptStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Create a session first
-	sessionStore := NewSessionStore(store)
-	_, err := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-	require.NoError(t, err)
-
-	// Save a prompt
-	id, err := promptStore.SaveUserPromptWithMatches(ctx, "claude-1", 1, "What is the codebase structure?", 5)
-	require.NoError(t, err)
-	assert.Greater(t, id, int64(0))
-}
-
-func TestPromptStore_SaveUserPromptWithMatches_Idempotency(t *testing.T) {
-	promptStore, _, cleanup := testPromptStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Save the same prompt twice (same claudeSessionID + promptNumber)
-	id1, err := promptStore.SaveUserPromptWithMatches(ctx, "claude-1", 1, "Test prompt", 3)
-	require.NoError(t, err)
-
-	id2, err := promptStore.SaveUserPromptWithMatches(ctx, "claude-1", 1, "Different text", 5)
-	require.NoError(t, err)
-
-	// Should return the same ID (INSERT OR IGNORE)
-	assert.Equal(t, id1, id2, "Duplicate prompts should return same ID")
-}
-
-func TestPromptStore_SaveUserPromptWithMatches_AsyncCleanup(t *testing.T) {
-	promptStore, _, cleanup := testPromptStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Track cleanup calls
-	var cleanupMutex sync.Mutex
-	cleanupCalled := false
-	var cleanupIDs []int64
-
-	cleanupFunc := func(ctx context.Context, deletedIDs []int64) {
-		cleanupMutex.Lock()
-		defer cleanupMutex.Unlock()
-		cleanupCalled = true
-		cleanupIDs = deletedIDs
-	}
-
-	promptStore.cleanupFunc = cleanupFunc
-
-	// Save prompts beyond the global limit (MaxPromptsGlobal = 500)
-	// Insert with slower pacing to avoid database lock contention
-	for i := 0; i < 505; i++ {
-		_, err := promptStore.SaveUserPromptWithMatches(ctx, "claude-1", i+1, "Prompt", 1)
-		require.NoError(t, err)
-		if i > 500 {
-			time.Sleep(5 * time.Millisecond) // Slow down after hitting limit
-		}
-	}
-
-	// Wait longer for async cleanup to complete
-	time.Sleep(500 * time.Millisecond)
-
-	// Verify cleanup was called
-	cleanupMutex.Lock()
-	defer cleanupMutex.Unlock()
-	assert.True(t, cleanupCalled, "Cleanup function should have been called")
-	assert.NotEmpty(t, cleanupIDs, "Cleanup should have deleted some prompts")
-}
-
-func TestPromptStore_CleanupOldPrompts(t *testing.T) {
-	promptStore, _, cleanup := testPromptStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Save prompts beyond the limit
-	// Async cleanup should fire after each insert beyond 500
-	for i := 0; i < 505; i++ {
-		_, err := promptStore.SaveUserPromptWithMatches(ctx, "claude-1", i+1, "Prompt", 1)
-		require.NoError(t, err)
-	}
-
-	// Wait for all async cleanups to complete
-	time.Sleep(1 * time.Second)
-
-	// After async cleanup, we should have at most 500 prompts
-	remaining, err := promptStore.GetAllPrompts(ctx)
-	require.NoError(t, err)
-	assert.LessOrEqual(t, len(remaining), MaxPromptsGlobal, "Should have at most %d prompts after async cleanup", MaxPromptsGlobal)
-}
-
-func TestPromptStore_GetPromptsByIDs(t *testing.T) {
-	promptStore, _, cleanup := testPromptStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Save multiple prompts
-	var ids []int64
-	for i := 1; i <= 3; i++ {
-		id, err := promptStore.SaveUserPromptWithMatches(ctx, "claude-1", i, "Prompt", i)
-		require.NoError(t, err)
-		ids = append(ids, id)
-		time.Sleep(10 * time.Millisecond) // Ensure different timestamps
-	}
-
-	tests := []struct {
-		name     string
-		orderBy  string
-		expected []int64
-	}{
-		{
-			name:     "Default ordering - date desc",
-			orderBy:  "default",
-			expected: []int64{ids[2], ids[1], ids[0]}, // Newest to oldest
-		},
-		{
-			name:     "Date ascending",
-			orderBy:  "date_asc",
-			expected: []int64{ids[0], ids[1], ids[2]}, // Oldest to newest
-		},
-		{
-			name:     "Date descending",
-			orderBy:  "date_desc",
-			expected: []int64{ids[2], ids[1], ids[0]}, // Newest to oldest
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			prompts, err := promptStore.GetPromptsByIDs(ctx, ids, tt.orderBy, 10)
-			require.NoError(t, err)
-			require.Len(t, prompts, 3)
-
-			// Verify ordering
-			for i, prompt := range prompts {
-				assert.Equal(t, tt.expected[i], prompt.ID, "Position %d should have ID %d", i, tt.expected[i])
-			}
-		})
-	}
-}
-
-func TestPromptStore_GetPromptsByIDs_Limit(t *testing.T) {
-	promptStore, _, cleanup := testPromptStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Save multiple prompts
-	var ids []int64
-	for i := 1; i <= 5; i++ {
-		id, err := promptStore.SaveUserPromptWithMatches(ctx, "claude-1", i, "Prompt", i)
-		require.NoError(t, err)
-		ids = append(ids, id)
-	}
-
-	// Get with limit
-	prompts, err := promptStore.GetPromptsByIDs(ctx, ids, "default", 3)
-	require.NoError(t, err)
-	assert.Len(t, prompts, 3)
-}
-
-func TestPromptStore_GetPromptsByIDs_EmptyInput(t *testing.T) {
-	promptStore, _, cleanup := testPromptStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Get with empty IDs
-	prompts, err := promptStore.GetPromptsByIDs(ctx, []int64{}, "default", 10)
-	require.NoError(t, err)
-	assert.Nil(t, prompts)
-}
-
-func TestPromptStore_GetPromptsByIDs_WithSession(t *testing.T) {
-	promptStore, store, cleanup := testPromptStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Create a session
-	sessionStore := NewSessionStore(store)
-	_, err := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-	require.NoError(t, err)
-
-	// Save a prompt
-	id, err := promptStore.SaveUserPromptWithMatches(ctx, "claude-1", 1, "Test prompt", 5)
-	require.NoError(t, err)
-
-	// Get with session join
-	prompts, err := promptStore.GetPromptsByIDs(ctx, []int64{id}, "default", 10)
-	require.NoError(t, err)
-	require.Len(t, prompts, 1)
-
-	// Verify session data is populated
-	assert.Equal(t, "test-project", prompts[0].Project)
-	assert.NotEmpty(t, prompts[0].SDKSessionID)
-}
-
-func TestPromptStore_GetAllRecentUserPrompts(t *testing.T) {
-	promptStore, _, cleanup := testPromptStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Save prompts across multiple sessions with timestamps
-	for i := 1; i <= 3; i++ {
-		_, err := promptStore.SaveUserPromptWithMatches(ctx, "claude-1", i, "Prompt A", i)
-		require.NoError(t, err)
-		time.Sleep(10 * time.Millisecond) // Ensure different timestamps
-	}
-
-	for i := 1; i <= 2; i++ {
-		_, err := promptStore.SaveUserPromptWithMatches(ctx, "claude-2", i, "Prompt B", i)
-		require.NoError(t, err)
-		time.Sleep(10 * time.Millisecond) // Ensure different timestamps
-	}
-
-	// Get all recent prompts
-	prompts, err := promptStore.GetAllRecentUserPrompts(ctx, 10)
-	require.NoError(t, err)
-	assert.Len(t, prompts, 5)
-
-	// Verify ordering (most recent first) - last inserted should be first
-	assert.Equal(t, "claude-2", prompts[0].ClaudeSessionID)
-	assert.Equal(t, 2, prompts[0].PromptNumber)
-}
-
-func TestPromptStore_GetAllPrompts(t *testing.T) {
-	promptStore, _, cleanup := testPromptStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Save prompts
-	for i := 1; i <= 5; i++ {
-		_, err := promptStore.SaveUserPromptWithMatches(ctx, "claude-1", i, "Prompt", i)
-		require.NoError(t, err)
-	}
-
-	// Wait for any async cleanup to complete (longer wait for race detector)
-	time.Sleep(500 * time.Millisecond)
-
-	// Get all prompts (for vector rebuild)
-	prompts, err := promptStore.GetAllPrompts(ctx)
-	require.NoError(t, err)
-	assert.Len(t, prompts, 5)
-
-	// Verify ordering by ID
-	for i := 0; i < len(prompts)-1; i++ {
-		assert.Less(t, prompts[i].ID, prompts[i+1].ID)
-	}
-}
-
-func TestPromptStore_FindRecentPromptByText(t *testing.T) {
-	promptStore, _, cleanup := testPromptStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Save a prompt
-	id, err := promptStore.SaveUserPromptWithMatches(ctx, "claude-1", 1, "What is the architecture?", 3)
-	require.NoError(t, err)
-
-	// Find by exact text match within time window
-	foundID, foundNumber, found := promptStore.FindRecentPromptByText(ctx, "claude-1", "What is the architecture?", 60)
-	assert.True(t, found, "Should find the prompt")
-	assert.Equal(t, id, foundID)
-	assert.Equal(t, 1, foundNumber)
-
-	// Try to find with different text
-	_, _, notFound := promptStore.FindRecentPromptByText(ctx, "claude-1", "Different text", 60)
-	assert.False(t, notFound, "Should not find a different prompt")
-
-	// Try to find outside time window
-	time.Sleep(100 * time.Millisecond)
-	_, _, notFound = promptStore.FindRecentPromptByText(ctx, "claude-1", "What is the architecture?", 0)
-	assert.False(t, notFound, "Should not find prompt outside time window")
-}
-
-func TestPromptStore_GetRecentUserPromptsByProject(t *testing.T) {
-	promptStore, store, cleanup := testPromptStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Create sessions for different projects
-	sessionStore := NewSessionStore(store)
-	_, err := sessionStore.CreateSDKSession(ctx, "claude-1", "project-a", "")
-	require.NoError(t, err)
-	_, err = sessionStore.CreateSDKSession(ctx, "claude-2", "project-b", "")
-	require.NoError(t, err)
-
-	// Save prompts for project-a
-	for i := 1; i <= 3; i++ {
-		_, err := promptStore.SaveUserPromptWithMatches(ctx, "claude-1", i, "Prompt A", i)
-		require.NoError(t, err)
-	}
-
-	// Save prompts for project-b
-	for i := 1; i <= 2; i++ {
-		_, err := promptStore.SaveUserPromptWithMatches(ctx, "claude-2", i, "Prompt B", i)
-		require.NoError(t, err)
-	}
-
-	// Get prompts for project-a
-	prompts, err := promptStore.GetRecentUserPromptsByProject(ctx, "project-a", 10)
-	require.NoError(t, err)
-	assert.Len(t, prompts, 3)
-
-	// Verify all prompts are from project-a
-	for _, prompt := range prompts {
-		assert.Equal(t, "project-a", prompt.Project)
-	}
-}
-
-func TestPromptStore_GetRecentUserPromptsByProject_Limit(t *testing.T) {
-	promptStore, store, cleanup := testPromptStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Create session
-	sessionStore := NewSessionStore(store)
-	_, err := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-	require.NoError(t, err)
-
-	// Save multiple prompts
-	for i := 1; i <= 10; i++ {
-		_, err := promptStore.SaveUserPromptWithMatches(ctx, "claude-1", i, "Prompt", i)
-		require.NoError(t, err)
-	}
-
-	// Wait for any async cleanup to complete
-	time.Sleep(100 * time.Millisecond)
-
-	// Get with limit
-	prompts, err := promptStore.GetRecentUserPromptsByProject(ctx, "test-project", 5)
-	require.NoError(t, err)
-	assert.Len(t, prompts, 5)
-}

internal/db/gorm/relation_store.go

@@ -1,383 +0,0 @@
-// Package gorm provides GORM-based database operations for claude-mnemonic.
-package gorm
-
-import (
-	"context"
-	"database/sql"
-
-	"gorm.io/gorm"
-	"gorm.io/gorm/clause"
-
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-)
-
-// RelationStore provides relation-related database operations using GORM.
-type RelationStore struct {
-	db *gorm.DB
-}
-
-// NewRelationStore creates a new relation store.
-func NewRelationStore(store *Store) *RelationStore {
-	return &RelationStore{
-		db: store.DB,
-	}
-}
-
-// StoreRelation stores a new observation relation.
-// Uses INSERT OR IGNORE to handle duplicate (source_id, target_id, relation_type) combinations.
-func (s *RelationStore) StoreRelation(ctx context.Context, relation *models.ObservationRelation) (int64, error) {
-	dbRelation := &ObservationRelation{
-		SourceID:        relation.SourceID,
-		TargetID:        relation.TargetID,
-		RelationType:    relation.RelationType,
-		Confidence:      relation.Confidence,
-		DetectionSource: relation.DetectionSource,
-		CreatedAt:       relation.CreatedAt,
-		CreatedAtEpoch:  relation.CreatedAtEpoch,
-	}
-
-	// Handle nullable fields
-	if relation.Reason != "" {
-		dbRelation.Reason = sql.NullString{String: relation.Reason, Valid: true}
-	}
-
-	// INSERT OR IGNORE using OnConflict
-	result := s.db.WithContext(ctx).
-		Clauses(clause.OnConflict{
-			Columns:   []clause.Column{{Name: "source_id"}, {Name: "target_id"}, {Name: "relation_type"}},
-			DoNothing: true,
-		}).
-		Create(dbRelation)
-
-	if result.Error != nil {
-		return 0, result.Error
-	}
-
-	// If RowsAffected is 0, the insert was ignored (duplicate)
-	if result.RowsAffected == 0 {
-		var existing ObservationRelation
-		err := s.db.Where("source_id = ? AND target_id = ? AND relation_type = ?",
-			relation.SourceID, relation.TargetID, relation.RelationType).
-			First(&existing).Error
-		if err != nil {
-			return 0, err
-		}
-		return existing.ID, nil
-	}
-
-	return dbRelation.ID, nil
-}
-
-// StoreRelations stores multiple relations in a single transaction.
-func (s *RelationStore) StoreRelations(ctx context.Context, relations []*models.ObservationRelation) error {
-	if len(relations) == 0 {
-		return nil
-	}
-
-	return s.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
-		for _, rel := range relations {
-			dbRelation := &ObservationRelation{
-				SourceID:        rel.SourceID,
-				TargetID:        rel.TargetID,
-				RelationType:    rel.RelationType,
-				Confidence:      rel.Confidence,
-				DetectionSource: rel.DetectionSource,
-				CreatedAt:       rel.CreatedAt,
-				CreatedAtEpoch:  rel.CreatedAtEpoch,
-			}
-
-			if rel.Reason != "" {
-				dbRelation.Reason = sql.NullString{String: rel.Reason, Valid: true}
-			}
-
-			result := tx.Clauses(clause.OnConflict{
-				Columns:   []clause.Column{{Name: "source_id"}, {Name: "target_id"}, {Name: "relation_type"}},
-				DoNothing: true,
-			}).Create(dbRelation)
-
-			if result.Error != nil {
-				return result.Error
-			}
-		}
-		return nil
-	})
-}
-
-// GetRelationsByObservationID retrieves all relations involving an observation (as source or target).
-func (s *RelationStore) GetRelationsByObservationID(ctx context.Context, obsID int64) ([]*models.ObservationRelation, error) {
-	var relations []ObservationRelation
-
-	err := s.db.WithContext(ctx).
-		Where("source_id = ? OR target_id = ?", obsID, obsID).
-		Order("confidence DESC, created_at_epoch DESC").
-		Find(&relations).Error
-
-	if err != nil {
-		return nil, err
-	}
-
-	return toModelRelations(relations), nil
-}
-
-// GetOutgoingRelations retrieves relations where the observation is the source.
-func (s *RelationStore) GetOutgoingRelations(ctx context.Context, obsID int64) ([]*models.ObservationRelation, error) {
-	var relations []ObservationRelation
-
-	err := s.db.WithContext(ctx).
-		Where("source_id = ?", obsID).
-		Order("confidence DESC, created_at_epoch DESC").
-		Find(&relations).Error
-
-	if err != nil {
-		return nil, err
-	}
-
-	return toModelRelations(relations), nil
-}
-
-// GetIncomingRelations retrieves relations where the observation is the target.
-func (s *RelationStore) GetIncomingRelations(ctx context.Context, obsID int64) ([]*models.ObservationRelation, error) {
-	var relations []ObservationRelation
-
-	err := s.db.WithContext(ctx).
-		Where("target_id = ?", obsID).
-		Order("confidence DESC, created_at_epoch DESC").
-		Find(&relations).Error
-
-	if err != nil {
-		return nil, err
-	}
-
-	return toModelRelations(relations), nil
-}
-
-// GetRelationsByType retrieves all relations of a specific type.
-func (s *RelationStore) GetRelationsByType(ctx context.Context, relationType models.RelationType, limit int) ([]*models.ObservationRelation, error) {
-	var relations []ObservationRelation
-
-	err := s.db.WithContext(ctx).
-		Where("relation_type = ?", relationType).
-		Order("confidence DESC, created_at_epoch DESC").
-		Limit(limit).
-		Find(&relations).Error
-
-	if err != nil {
-		return nil, err
-	}
-
-	return toModelRelations(relations), nil
-}
-
-// GetRelationsWithDetails retrieves relations with observation titles for display.
-func (s *RelationStore) GetRelationsWithDetails(ctx context.Context, obsID int64) ([]*models.RelationWithDetails, error) {
-	var results []struct {
-		SourceType  string         `gorm:"column:source_type"`
-		TargetType  string         `gorm:"column:target_type"`
-		SourceTitle sql.NullString `gorm:"column:source_title"`
-		TargetTitle sql.NullString `gorm:"column:target_title"`
-		ObservationRelation
-	}
-
-	err := s.db.WithContext(ctx).
-		Table("observation_relations r").
-		Select("r.*, "+
-			"COALESCE(src.title, '') as source_title, "+
-			"COALESCE(tgt.title, '') as target_title, "+
-			"src.type as source_type, "+
-			"tgt.type as target_type").
-		Joins("JOIN observations src ON src.id = r.source_id").
-		Joins("JOIN observations tgt ON tgt.id = r.target_id").
-		Where("r.source_id = ? OR r.target_id = ?", obsID, obsID).
-		Order("r.confidence DESC, r.created_at_epoch DESC").
-		Scan(&results).Error
-
-	if err != nil {
-		return nil, err
-	}
-
-	relations := make([]*models.RelationWithDetails, len(results))
-	for i, r := range results {
-		relations[i] = &models.RelationWithDetails{
-			Relation:    toModelRelation(&r.ObservationRelation),
-			SourceTitle: r.SourceTitle.String,
-			TargetTitle: r.TargetTitle.String,
-			SourceType:  models.ObservationType(r.SourceType),
-			TargetType:  models.ObservationType(r.TargetType),
-		}
-	}
-
-	return relations, nil
-}
-
-// GetRelationGraph retrieves a relation graph centered on an observation.
-// This returns all observations within N hops from the center.
-func (s *RelationStore) GetRelationGraph(ctx context.Context, centerID int64, maxDepth int) (*models.RelationGraph, error) {
-	// Get all relations involving the center observation
-	relations, err := s.GetRelationsWithDetails(ctx, centerID)
-	if err != nil {
-		return nil, err
-	}
-
-	graph := &models.RelationGraph{
-		CenterID:  centerID,
-		Relations: relations,
-	}
-
-	// If depth > 1, recursively get relations for connected observations
-	if maxDepth > 1 {
-		visited := map[int64]bool{centerID: true}
-		toVisit := make([]int64, 0)
-
-		// Collect IDs of directly connected observations
-		for _, r := range relations {
-			if !visited[r.Relation.SourceID] {
-				toVisit = append(toVisit, r.Relation.SourceID)
-				visited[r.Relation.SourceID] = true
-			}
-			if !visited[r.Relation.TargetID] {
-				toVisit = append(toVisit, r.Relation.TargetID)
-				visited[r.Relation.TargetID] = true
-			}
-		}
-
-		// Get relations for connected observations (depth - 1)
-		for depth := 1; depth < maxDepth && len(toVisit) > 0; depth++ {
-			nextLevel := make([]int64, 0)
-			for _, obsID := range toVisit {
-				moreRelations, err := s.GetRelationsWithDetails(ctx, obsID)
-				if err != nil {
-					continue
-				}
-				for _, r := range moreRelations {
-					// Avoid duplicates
-					exists := false
-					for _, existing := range graph.Relations {
-						if existing.Relation.ID == r.Relation.ID {
-							exists = true
-							break
-						}
-					}
-					if !exists {
-						graph.Relations = append(graph.Relations, r)
-					}
-
-					// Queue next level
-					if !visited[r.Relation.SourceID] {
-						nextLevel = append(nextLevel, r.Relation.SourceID)
-						visited[r.Relation.SourceID] = true
-					}
-					if !visited[r.Relation.TargetID] {
-						nextLevel = append(nextLevel, r.Relation.TargetID)
-						visited[r.Relation.TargetID] = true
-					}
-				}
-			}
-			toVisit = nextLevel
-		}
-	}
-
-	return graph, nil
-}
-
-// DeleteRelationsByObservationID deletes all relations involving an observation.
-// Called when an observation is deleted.
-func (s *RelationStore) DeleteRelationsByObservationID(ctx context.Context, obsID int64) error {
-	result := s.db.WithContext(ctx).
-		Where("source_id = ? OR target_id = ?", obsID, obsID).
-		Delete(&ObservationRelation{})
-
-	return result.Error
-}
-
-// GetRelationCount returns the count of relations for an observation.
-func (s *RelationStore) GetRelationCount(ctx context.Context, obsID int64) (int, error) {
-	var count int64
-	err := s.db.WithContext(ctx).
-		Model(&ObservationRelation{}).
-		Where("source_id = ? OR target_id = ?", obsID, obsID).
-		Count(&count).Error
-
-	return int(count), err
-}
-
-// GetTotalRelationCount returns the total count of all relations.
-func (s *RelationStore) GetTotalRelationCount(ctx context.Context) (int, error) {
-	var count int64
-	err := s.db.WithContext(ctx).
-		Model(&ObservationRelation{}).
-		Count(&count).Error
-
-	return int(count), err
-}
-
-// GetHighConfidenceRelations retrieves relations with confidence above threshold.
-func (s *RelationStore) GetHighConfidenceRelations(ctx context.Context, minConfidence float64, limit int) ([]*models.ObservationRelation, error) {
-	var relations []ObservationRelation
-
-	err := s.db.WithContext(ctx).
-		Where("confidence >= ?", minConfidence).
-		Order("confidence DESC, created_at_epoch DESC").
-		Limit(limit).
-		Find(&relations).Error
-
-	if err != nil {
-		return nil, err
-	}
-
-	return toModelRelations(relations), nil
-}
-
-// UpdateRelationConfidence updates the confidence of a relation.
-func (s *RelationStore) UpdateRelationConfidence(ctx context.Context, relationID int64, newConfidence float64) error {
-	result := s.db.WithContext(ctx).
-		Model(&ObservationRelation{}).
-		Where("id = ?", relationID).
-		Update("confidence", newConfidence)
-
-	return result.Error
-}
-
-// GetRelatedObservationIDs returns IDs of observations related to the given one.
-// This is useful for expanding search results.
-// Uses CASE expression for bidirectional ID lookup (GORM doesn't support this well, so we use raw SQL).
-func (s *RelationStore) GetRelatedObservationIDs(ctx context.Context, obsID int64, minConfidence float64) ([]int64, error) {
-	var ids []int64
-
-	err := s.db.WithContext(ctx).
-		Raw("SELECT DISTINCT CASE WHEN source_id = ? THEN target_id ELSE source_id END as related_id "+
-			"FROM observation_relations "+
-			"WHERE (source_id = ? OR target_id = ?) AND confidence >= ?",
-			obsID, obsID, obsID, minConfidence).
-		Pluck("related_id", &ids).Error
-
-	return ids, err
-}
-
-// toModelRelation converts a GORM ObservationRelation to a pkg/models ObservationRelation.
-func toModelRelation(r *ObservationRelation) *models.ObservationRelation {
-	relation := &models.ObservationRelation{
-		ID:              r.ID,
-		SourceID:        r.SourceID,
-		TargetID:        r.TargetID,
-		RelationType:    r.RelationType,
-		Confidence:      r.Confidence,
-		DetectionSource: r.DetectionSource,
-		CreatedAt:       r.CreatedAt,
-		CreatedAtEpoch:  r.CreatedAtEpoch,
-	}
-
-	if r.Reason.Valid {
-		relation.Reason = r.Reason.String
-	}
-
-	return relation
-}
-
-// toModelRelations converts a slice of GORM ObservationRelations to pkg/models ObservationRelations.
-func toModelRelations(relations []ObservationRelation) []*models.ObservationRelation {
-	result := make([]*models.ObservationRelation, len(relations))
-	for i, r := range relations {
-		result[i] = toModelRelation(&r)
-	}
-	return result
-}

internal/db/gorm/relation_store_test.go

@@ -1,306 +0,0 @@
-//go:build fts5
-
-// Package gorm provides GORM-based database operations for claude-mnemonic.
-package gorm
-
-import (
-	"context"
-	"os"
-	"path/filepath"
-	"testing"
-	"time"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"gorm.io/gorm/logger"
-
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-)
-
-func testRelationStore(t *testing.T) (*RelationStore, *Store, func()) {
-	t.Helper()
-
-	tmpDir, err := os.MkdirTemp("", "gorm_relation_test_*")
-	if err != nil {
-		t.Fatalf("create temp dir: %v", err)
-	}
-
-	dbPath := filepath.Join(tmpDir, "test.db")
-	cfg := Config{
-		Path:     dbPath,
-		MaxConns: 4,
-		LogLevel: logger.Silent,
-	}
-
-	store, err := NewStore(cfg)
-	if err != nil {
-		os.RemoveAll(tmpDir)
-		t.Fatalf("NewStore failed: %v", err)
-	}
-
-	relationStore := NewRelationStore(store)
-
-	cleanup := func() {
-		store.Close()
-		os.RemoveAll(tmpDir)
-	}
-
-	return relationStore, store, cleanup
-}
-
-func TestRelationStore_StoreRelation(t *testing.T) {
-	relationStore, _, cleanup := testRelationStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-	now := time.Now()
-
-	relation := &models.ObservationRelation{
-		SourceID:        1,
-		TargetID:        2,
-		RelationType:    models.RelationCauses,
-		Confidence:      0.8,
-		DetectionSource: models.DetectionSourceFileOverlap,
-		Reason:          "Test relation",
-		CreatedAt:       now.Format(time.RFC3339),
-		CreatedAtEpoch:  now.UnixMilli(),
-	}
-
-	id, err := relationStore.StoreRelation(ctx, relation)
-	require.NoError(t, err)
-	assert.Greater(t, id, int64(0))
-}
-
-func TestRelationStore_StoreRelation_Idempotency(t *testing.T) {
-	relationStore, _, cleanup := testRelationStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-	now := time.Now()
-
-	relation := &models.ObservationRelation{
-		SourceID:        1,
-		TargetID:        2,
-		RelationType:    models.RelationCauses,
-		Confidence:      0.8,
-		DetectionSource: models.DetectionSourceFileOverlap,
-		CreatedAt:       now.Format(time.RFC3339),
-		CreatedAtEpoch:  now.UnixMilli(),
-	}
-
-	id1, err := relationStore.StoreRelation(ctx, relation)
-	require.NoError(t, err)
-
-	// Store again with same source/target/type - should return same ID
-	id2, err := relationStore.StoreRelation(ctx, relation)
-	require.NoError(t, err)
-	assert.Equal(t, id1, id2)
-}
-
-func TestRelationStore_StoreRelations(t *testing.T) {
-	relationStore, _, cleanup := testRelationStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-	now := time.Now()
-
-	relations := []*models.ObservationRelation{
-		{
-			SourceID:        1,
-			TargetID:        2,
-			RelationType:    models.RelationCauses,
-			Confidence:      0.8,
-			DetectionSource: models.DetectionSourceFileOverlap,
-			CreatedAt:       now.Format(time.RFC3339),
-			CreatedAtEpoch:  now.UnixMilli(),
-		},
-		{
-			SourceID:        2,
-			TargetID:        3,
-			RelationType:    models.RelationFixes,
-			Confidence:      0.9,
-			DetectionSource: models.DetectionSourceTemporalProximity,
-			CreatedAt:       now.Format(time.RFC3339),
-			CreatedAtEpoch:  now.UnixMilli(),
-		},
-	}
-
-	err := relationStore.StoreRelations(ctx, relations)
-	require.NoError(t, err)
-
-	// Verify both were stored
-	count, err := relationStore.GetTotalRelationCount(ctx)
-	require.NoError(t, err)
-	assert.Equal(t, 2, count)
-}
-
-func TestRelationStore_GetRelationsByObservationID(t *testing.T) {
-	relationStore, _, cleanup := testRelationStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-	now := time.Now()
-
-	// Create relations involving observation 2
-	relations := []*models.ObservationRelation{
-		{
-			SourceID:        1,
-			TargetID:        2,
-			RelationType:    models.RelationCauses,
-			Confidence:      0.8,
-			DetectionSource: models.DetectionSourceFileOverlap,
-			CreatedAt:       now.Format(time.RFC3339),
-			CreatedAtEpoch:  now.UnixMilli(),
-		},
-		{
-			SourceID:        2,
-			TargetID:        3,
-			RelationType:    models.RelationFixes,
-			Confidence:      0.9,
-			DetectionSource: models.DetectionSourceTemporalProximity,
-			CreatedAt:       now.Format(time.RFC3339),
-			CreatedAtEpoch:  now.UnixMilli(),
-		},
-	}
-
-	err := relationStore.StoreRelations(ctx, relations)
-	require.NoError(t, err)
-
-	// Get relations for observation 2 (involved in both)
-	result, err := relationStore.GetRelationsByObservationID(ctx, 2)
-	require.NoError(t, err)
-	assert.Len(t, result, 2)
-}
-
-func TestRelationStore_GetOutgoingAndIncomingRelations(t *testing.T) {
-	relationStore, _, cleanup := testRelationStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-	now := time.Now()
-
-	relations := []*models.ObservationRelation{
-		{
-			SourceID:        2,
-			TargetID:        1,
-			RelationType:    models.RelationCauses,
-			Confidence:      0.8,
-			DetectionSource: models.DetectionSourceFileOverlap,
-			CreatedAt:       now.Format(time.RFC3339),
-			CreatedAtEpoch:  now.UnixMilli(),
-		},
-		{
-			SourceID:        3,
-			TargetID:        2,
-			RelationType:    models.RelationFixes,
-			Confidence:      0.9,
-			DetectionSource: models.DetectionSourceTemporalProximity,
-			CreatedAt:       now.Format(time.RFC3339),
-			CreatedAtEpoch:  now.UnixMilli(),
-		},
-	}
-
-	err := relationStore.StoreRelations(ctx, relations)
-	require.NoError(t, err)
-
-	// Observation 2 has 1 outgoing (to 1) and 1 incoming (from 3)
-	outgoing, err := relationStore.GetOutgoingRelations(ctx, 2)
-	require.NoError(t, err)
-	assert.Len(t, outgoing, 1)
-	assert.Equal(t, int64(1), outgoing[0].TargetID)
-
-	incoming, err := relationStore.GetIncomingRelations(ctx, 2)
-	require.NoError(t, err)
-	assert.Len(t, incoming, 1)
-	assert.Equal(t, int64(3), incoming[0].SourceID)
-}
-
-func TestRelationStore_GetRelationCount(t *testing.T) {
-	relationStore, _, cleanup := testRelationStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-	now := time.Now()
-
-	relations := []*models.ObservationRelation{
-		{
-			SourceID:        1,
-			TargetID:        2,
-			RelationType:    models.RelationCauses,
-			Confidence:      0.8,
-			DetectionSource: models.DetectionSourceFileOverlap,
-			CreatedAt:       now.Format(time.RFC3339),
-			CreatedAtEpoch:  now.UnixMilli(),
-		},
-		{
-			SourceID:        2,
-			TargetID:        3,
-			RelationType:    models.RelationFixes,
-			Confidence:      0.9,
-			DetectionSource: models.DetectionSourceTemporalProximity,
-			CreatedAt:       now.Format(time.RFC3339),
-			CreatedAtEpoch:  now.UnixMilli(),
-		},
-	}
-
-	err := relationStore.StoreRelations(ctx, relations)
-	require.NoError(t, err)
-
-	count, err := relationStore.GetRelationCount(ctx, 2)
-	require.NoError(t, err)
-	assert.Equal(t, 2, count)
-
-	count, err = relationStore.GetRelationCount(ctx, 1)
-	require.NoError(t, err)
-	assert.Equal(t, 1, count)
-}
-
-func TestRelationStore_DeleteRelationsByObservationID(t *testing.T) {
-	relationStore, _, cleanup := testRelationStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-	now := time.Now()
-
-	relations := []*models.ObservationRelation{
-		{
-			SourceID:        1,
-			TargetID:        2,
-			RelationType:    models.RelationCauses,
-			Confidence:      0.8,
-			DetectionSource: models.DetectionSourceFileOverlap,
-			CreatedAt:       now.Format(time.RFC3339),
-			CreatedAtEpoch:  now.UnixMilli(),
-		},
-		{
-			SourceID:        2,
-			TargetID:        3,
-			RelationType:    models.RelationFixes,
-			Confidence:      0.9,
-			DetectionSource: models.DetectionSourceTemporalProximity,
-			CreatedAt:       now.Format(time.RFC3339),
-			CreatedAtEpoch:  now.UnixMilli(),
-		},
-		{
-			SourceID:        4,
-			TargetID:        5,
-			RelationType:    models.RelationRelatesTo,
-			Confidence:      0.7,
-			DetectionSource: models.DetectionSourceConceptOverlap,
-			CreatedAt:       now.Format(time.RFC3339),
-			CreatedAtEpoch:  now.UnixMilli(),
-		},
-	}
-
-	err := relationStore.StoreRelations(ctx, relations)
-	require.NoError(t, err)
-
-	// Delete relations involving observation 2
-	err = relationStore.DeleteRelationsByObservationID(ctx, 2)
-	require.NoError(t, err)
-
-	// Verify only 1 relation remains (4->5)
-	total, err := relationStore.GetTotalRelationCount(ctx)
-	require.NoError(t, err)
-	assert.Equal(t, 1, total)
-}

internal/db/gorm/scoring_store.go

@@ -1,303 +0,0 @@
-// Package gorm provides GORM-based database operations for claude-mnemonic.
-package gorm
-
-import (
-	"context"
-	"fmt"
-	"strings"
-	"time"
-
-	"gorm.io/gorm"
-
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-)
-
-// UpdateObservationFeedback updates the user feedback for an observation.
-// Feedback values: -1 (thumbs down), 0 (neutral), 1 (thumbs up).
-func (s *ObservationStore) UpdateObservationFeedback(ctx context.Context, id int64, feedback int) error {
-	now := time.Now().UnixMilli()
-
-	result := s.db.WithContext(ctx).
-		Model(&Observation{}).
-		Where("id = ?", id).
-		Updates(map[string]interface{}{
-			"user_feedback":          feedback,
-			"score_updated_at_epoch": now,
-		})
-
-	return result.Error
-}
-
-// IncrementRetrievalCount increments the retrieval counter for the given observation IDs.
-// This is called when observations are returned in search results.
-func (s *ObservationStore) IncrementRetrievalCount(ctx context.Context, ids []int64) error {
-	if len(ids) == 0 {
-		return nil
-	}
-
-	now := time.Now().UnixMilli()
-
-	// Use raw SQL for increment expression
-	result := s.db.WithContext(ctx).
-		Exec("UPDATE observations SET retrieval_count = COALESCE(retrieval_count, 0) + 1, last_retrieved_at_epoch = ? WHERE id IN ?",
-			now, ids)
-
-	return result.Error
-}
-
-// UpdateImportanceScore updates the importance score for a single observation.
-func (s *ObservationStore) UpdateImportanceScore(ctx context.Context, id int64, score float64) error {
-	now := time.Now().UnixMilli()
-
-	result := s.db.WithContext(ctx).
-		Model(&Observation{}).
-		Where("id = ?", id).
-		Updates(map[string]interface{}{
-			"importance_score":       score,
-			"score_updated_at_epoch": now,
-		})
-
-	return result.Error
-}
-
-// UpdateImportanceScores bulk updates importance scores for multiple observations.
-// Uses a single SQL statement with CASE/WHEN for efficient batch updates.
-func (s *ObservationStore) UpdateImportanceScores(ctx context.Context, scores map[int64]float64) error {
-	if len(scores) == 0 {
-		return nil
-	}
-
-	// For small batches, use simple individual updates
-	if len(scores) <= 5 {
-		return s.updateScoresIndividually(ctx, scores)
-	}
-
-	// For larger batches, use CASE/WHEN SQL for single-query update
-	return s.updateScoresBatch(ctx, scores)
-}
-
-// updateScoresIndividually updates scores one at a time (efficient for small batches).
-func (s *ObservationStore) updateScoresIndividually(ctx context.Context, scores map[int64]float64) error {
-	return s.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
-		now := time.Now().UnixMilli()
-
-		for id, score := range scores {
-			err := tx.Model(&Observation{}).
-				Where("id = ?", id).
-				Updates(map[string]interface{}{
-					"importance_score":       score,
-					"score_updated_at_epoch": now,
-				}).Error
-
-			if err != nil {
-				return err
-			}
-		}
-
-		return nil
-	})
-}
-
-// updateScoresBatch updates multiple scores in a single SQL statement using CASE/WHEN.
-// This is much more efficient for large batches (O(1) queries instead of O(n)).
-func (s *ObservationStore) updateScoresBatch(ctx context.Context, scores map[int64]float64) error {
-	now := time.Now().UnixMilli()
-
-	// Build CASE/WHEN clause for importance_score
-	// UPDATE observations SET
-	//   importance_score = CASE id WHEN 1 THEN 0.5 WHEN 2 THEN 0.8 ... END,
-	//   score_updated_at_epoch = ?
-	// WHERE id IN (1, 2, ...)
-
-	ids := make([]int64, 0, len(scores))
-	caseBuilder := strings.Builder{}
-	caseBuilder.WriteString("CASE id ")
-
-	for id, score := range scores {
-		ids = append(ids, id)
-		caseBuilder.WriteString(fmt.Sprintf("WHEN %d THEN %f ", id, score))
-	}
-	caseBuilder.WriteString("END")
-
-	// Use raw SQL for the batch update
-	sql := fmt.Sprintf(
-		"UPDATE observations SET importance_score = %s, score_updated_at_epoch = ? WHERE id IN ?",
-		caseBuilder.String(),
-	)
-
-	return s.db.WithContext(ctx).Exec(sql, now, ids).Error
-}
-
-// GetObservationsNeedingScoreUpdate returns observations that need their importance score recalculated.
-// Returns observations where score_updated_at_epoch is NULL or older than the threshold.
-func (s *ObservationStore) GetObservationsNeedingScoreUpdate(ctx context.Context, threshold time.Duration, limit int) ([]*models.Observation, error) {
-	cutoff := time.Now().Add(-threshold).UnixMilli()
-
-	var observations []Observation
-
-	err := s.db.WithContext(ctx).
-		Where("score_updated_at_epoch IS NULL OR score_updated_at_epoch < ?", cutoff).
-		Order("created_at_epoch DESC").
-		Limit(limit).
-		Find(&observations).Error
-
-	if err != nil {
-		return nil, err
-	}
-
-	return toModelObservations(observations), nil
-}
-
-// GetConceptWeights returns all concept weights from the database.
-func (s *ObservationStore) GetConceptWeights(ctx context.Context) (map[string]float64, error) {
-	var weights []struct {
-		Concept string
-		Weight  float64
-	}
-
-	err := s.db.WithContext(ctx).
-		Table("concept_weights").
-		Select("concept, weight").
-		Scan(&weights).Error
-
-	if err != nil {
-		return models.DefaultConceptWeights, nil
-	}
-
-	if len(weights) == 0 {
-		return models.DefaultConceptWeights, nil
-	}
-
-	result := make(map[string]float64, len(weights))
-	for _, w := range weights {
-		result[w.Concept] = w.Weight
-	}
-
-	return result, nil
-}
-
-// SetConceptWeights stores concept weights in the database using UPSERT.
-func (s *ObservationStore) SetConceptWeights(ctx context.Context, weights map[string]float64) error {
-	if len(weights) == 0 {
-		return nil
-	}
-
-	return s.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
-		for concept, weight := range weights {
-			// UPSERT using raw SQL since GORM's ON CONFLICT is complex for this case
-			err := tx.Exec(`
-				INSERT INTO concept_weights (concept, weight, updated_at)
-				VALUES (?, ?, datetime('now'))
-				ON CONFLICT(concept) DO UPDATE SET weight = excluded.weight, updated_at = excluded.updated_at
-			`, concept, weight).Error
-
-			if err != nil {
-				return err
-			}
-		}
-
-		return nil
-	})
-}
-
-// UpdateConceptWeight updates a single concept weight in the database using UPSERT.
-func (s *ObservationStore) UpdateConceptWeight(ctx context.Context, concept string, weight float64) error {
-	return s.db.WithContext(ctx).Exec(`
-		INSERT INTO concept_weights (concept, weight, updated_at)
-		VALUES (?, ?, datetime('now'))
-		ON CONFLICT(concept) DO UPDATE SET weight = excluded.weight, updated_at = excluded.updated_at
-	`, concept, weight).Error
-}
-
-// FeedbackStats contains statistics about observation feedback and scoring.
-type FeedbackStats struct {
-	Total        int     `json:"total"`
-	Positive     int     `json:"positive"`
-	Negative     int     `json:"negative"`
-	Neutral      int     `json:"neutral"`
-	AvgScore     float64 `json:"avg_score"`
-	AvgRetrieval float64 `json:"avg_retrieval"`
-}
-
-// GetObservationFeedbackStats returns statistics about user feedback.
-func (s *ObservationStore) GetObservationFeedbackStats(ctx context.Context, project string) (*FeedbackStats, error) {
-	var stats FeedbackStats
-
-	query := s.db.WithContext(ctx).
-		Model(&Observation{}).
-		Select(`
-			COUNT(*) as total,
-			COALESCE(SUM(CASE WHEN user_feedback = 1 THEN 1 ELSE 0 END), 0) as positive,
-			COALESCE(SUM(CASE WHEN user_feedback = -1 THEN 1 ELSE 0 END), 0) as negative,
-			COALESCE(SUM(CASE WHEN user_feedback = 0 THEN 1 ELSE 0 END), 0) as neutral,
-			COALESCE(AVG(COALESCE(importance_score, 1.0)), 0) as avg_score,
-			COALESCE(AVG(COALESCE(retrieval_count, 0)), 0) as avg_retrieval
-		`)
-
-	if project != "" {
-		query = query.Where("project = ? OR scope = 'global'", project)
-	}
-
-	err := query.Scan(&stats).Error
-	if err != nil {
-		return nil, err
-	}
-
-	return &stats, nil
-}
-
-// GetTopScoringObservations returns the highest-scoring observations.
-func (s *ObservationStore) GetTopScoringObservations(ctx context.Context, project string, limit int) ([]*models.Observation, error) {
-	var observations []Observation
-
-	query := s.db.WithContext(ctx).
-		Order("COALESCE(importance_score, 1.0) DESC, created_at_epoch DESC").
-		Limit(limit)
-
-	if project != "" {
-		query = query.Where("project = ? OR scope = 'global'", project)
-	}
-
-	err := query.Find(&observations).Error
-	if err != nil {
-		return nil, err
-	}
-
-	return toModelObservations(observations), nil
-}
-
-// GetMostRetrievedObservations returns the most frequently retrieved observations.
-func (s *ObservationStore) GetMostRetrievedObservations(ctx context.Context, project string, limit int) ([]*models.Observation, error) {
-	var observations []Observation
-
-	query := s.db.WithContext(ctx).
-		Where("retrieval_count > 0").
-		Order("retrieval_count DESC, created_at_epoch DESC").
-		Limit(limit)
-
-	if project != "" {
-		query = query.Where("project = ? OR scope = 'global'", project)
-	}
-
-	err := query.Find(&observations).Error
-	if err != nil {
-		return nil, err
-	}
-
-	return toModelObservations(observations), nil
-}
-
-// ResetObservationScores resets all observation scores to their default values.
-// This is useful for testing or when changing the scoring algorithm.
-func (s *ObservationStore) ResetObservationScores(ctx context.Context) error {
-	// Use Where("1 = 1") to explicitly allow bulk update of all rows
-	result := s.db.WithContext(ctx).
-		Model(&Observation{}).
-		Where("1 = 1").
-		Updates(map[string]interface{}{
-			"importance_score":       1.0,
-			"score_updated_at_epoch": nil,
-		})
-
-	return result.Error
-}

internal/db/gorm/scoring_store_test.go

@@ -1,355 +0,0 @@
-//go:build fts5
-
-// Package gorm provides GORM-based database operations for claude-mnemonic.
-package gorm
-
-import (
-	"context"
-	"testing"
-	"time"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-)
-
-func TestObservationStore_UpdateImportanceScore(t *testing.T) {
-	obsStore, store, cleanup := testObservationStore(t)
-	defer cleanup()
-	ctx := context.Background()
-
-	// Create observation
-	sessionStore := NewSessionStore(store)
-	sessionID, _ := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-	obs := &models.ParsedObservation{Type: models.ObsTypeDiscovery, Title: "Test"}
-	obsID, _, _ := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs, int(sessionID), 1)
-
-	// Update score
-	err := obsStore.UpdateImportanceScore(ctx, obsID, 5.0)
-	require.NoError(t, err)
-
-	// Verify
-	var dbObs Observation
-	store.DB.First(&dbObs, obsID)
-	assert.Equal(t, 5.0, dbObs.ImportanceScore)
-}
-
-func TestObservationStore_IncrementRetrievalCount(t *testing.T) {
-	obsStore, store, cleanup := testObservationStore(t)
-	defer cleanup()
-	ctx := context.Background()
-
-	sessionStore := NewSessionStore(store)
-	sessionID, _ := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-	obs := &models.ParsedObservation{Type: models.ObsTypeDiscovery, Title: "Test"}
-	obsID, _, _ := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs, int(sessionID), 1)
-
-	err := obsStore.IncrementRetrievalCount(ctx, []int64{obsID})
-	require.NoError(t, err)
-
-	var dbObs Observation
-	store.DB.First(&dbObs, obsID)
-	assert.Equal(t, 1, dbObs.RetrievalCount)
-}
-
-func TestObservationStore_IncrementRetrievalCount_Multiple(t *testing.T) {
-	obsStore, store, cleanup := testObservationStore(t)
-	defer cleanup()
-	ctx := context.Background()
-
-	sessionStore := NewSessionStore(store)
-	sessionID, _ := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-
-	// Create 3 observations
-	ids := make([]int64, 3)
-	for i := 0; i < 3; i++ {
-		obs := &models.ParsedObservation{Type: models.ObsTypeDiscovery, Title: "Test"}
-		obsID, _, _ := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs, int(sessionID), 1)
-		ids[i] = obsID
-	}
-
-	// Increment all
-	err := obsStore.IncrementRetrievalCount(ctx, ids)
-	require.NoError(t, err)
-
-	// Verify all were incremented
-	for _, id := range ids {
-		var dbObs Observation
-		store.DB.First(&dbObs, id)
-		assert.Equal(t, 1, dbObs.RetrievalCount)
-	}
-
-	// Increment again
-	err = obsStore.IncrementRetrievalCount(ctx, ids)
-	require.NoError(t, err)
-
-	// Verify all are now 2
-	for _, id := range ids {
-		var dbObs Observation
-		store.DB.First(&dbObs, id)
-		assert.Equal(t, 2, dbObs.RetrievalCount)
-	}
-}
-
-func TestObservationStore_UpdateImportanceScores_Bulk(t *testing.T) {
-	obsStore, store, cleanup := testObservationStore(t)
-	defer cleanup()
-	ctx := context.Background()
-
-	sessionStore := NewSessionStore(store)
-	sessionID, _ := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-
-	// Create 3 observations
-	ids := make([]int64, 3)
-	for i := 0; i < 3; i++ {
-		obs := &models.ParsedObservation{Type: models.ObsTypeDiscovery, Title: "Test"}
-		obsID, _, _ := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs, int(sessionID), 1)
-		ids[i] = obsID
-	}
-
-	// Bulk update scores
-	scores := map[int64]float64{
-		ids[0]: 2.5,
-		ids[1]: 3.7,
-		ids[2]: 1.2,
-	}
-
-	err := obsStore.UpdateImportanceScores(ctx, scores)
-	require.NoError(t, err)
-
-	// Verify scores
-	for id, expectedScore := range scores {
-		var dbObs Observation
-		store.DB.First(&dbObs, id)
-		assert.Equal(t, expectedScore, dbObs.ImportanceScore)
-	}
-}
-
-func TestObservationStore_UpdateObservationFeedback(t *testing.T) {
-	obsStore, store, cleanup := testObservationStore(t)
-	defer cleanup()
-	ctx := context.Background()
-
-	sessionStore := NewSessionStore(store)
-	sessionID, _ := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-	obs := &models.ParsedObservation{Type: models.ObsTypeDiscovery, Title: "Test"}
-	obsID, _, _ := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs, int(sessionID), 1)
-
-	// Set thumbs up
-	err := obsStore.UpdateObservationFeedback(ctx, obsID, 1)
-	require.NoError(t, err)
-
-	var dbObs Observation
-	store.DB.First(&dbObs, obsID)
-	assert.Equal(t, 1, dbObs.UserFeedback)
-
-	// Set thumbs down
-	err = obsStore.UpdateObservationFeedback(ctx, obsID, -1)
-	require.NoError(t, err)
-
-	store.DB.First(&dbObs, obsID)
-	assert.Equal(t, -1, dbObs.UserFeedback)
-}
-
-func TestObservationStore_GetObservationFeedbackStats(t *testing.T) {
-	obsStore, store, cleanup := testObservationStore(t)
-	defer cleanup()
-	ctx := context.Background()
-
-	sessionStore := NewSessionStore(store)
-	sessionID, _ := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-
-	// Create observations with different feedback
-	obs1 := &models.ParsedObservation{Type: models.ObsTypeDiscovery, Title: "Test1"}
-	obsID1, _, _ := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs1, int(sessionID), 1)
-	obsStore.UpdateObservationFeedback(ctx, obsID1, 1) // thumbs up
-	obsStore.UpdateImportanceScore(ctx, obsID1, 3.0)
-
-	obs2 := &models.ParsedObservation{Type: models.ObsTypeBugfix, Title: "Test2"}
-	obsID2, _, _ := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs2, int(sessionID), 2)
-	obsStore.UpdateObservationFeedback(ctx, obsID2, -1) // thumbs down
-	obsStore.UpdateImportanceScore(ctx, obsID2, 2.0)
-
-	obs3 := &models.ParsedObservation{Type: models.ObsTypeFeature, Title: "Test3"}
-	obsID3, _, _ := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs3, int(sessionID), 3)
-	// neutral (0)
-	obsStore.UpdateImportanceScore(ctx, obsID3, 1.5)
-	obsStore.IncrementRetrievalCount(ctx, []int64{obsID1, obsID2, obsID3})
-
-	// Get stats
-	stats, err := obsStore.GetObservationFeedbackStats(ctx, "test-project")
-	require.NoError(t, err)
-
-	assert.Equal(t, 3, stats.Total)
-	assert.Equal(t, 1, stats.Positive)
-	assert.Equal(t, 1, stats.Negative)
-	assert.Equal(t, 1, stats.Neutral)
-	assert.InDelta(t, 2.166, stats.AvgScore, 0.01) // (3.0 + 2.0 + 1.5) / 3
-	assert.InDelta(t, 1.0, stats.AvgRetrieval, 0.01)
-}
-
-func TestObservationStore_GetTopScoringObservations(t *testing.T) {
-	obsStore, store, cleanup := testObservationStore(t)
-	defer cleanup()
-	ctx := context.Background()
-
-	sessionStore := NewSessionStore(store)
-	sessionID, _ := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-
-	// Create observations with different scores
-	obs1 := &models.ParsedObservation{Type: models.ObsTypeDiscovery, Title: "High"}
-	obsID1, _, _ := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs1, int(sessionID), 1)
-	obsStore.UpdateImportanceScore(ctx, obsID1, 5.0)
-
-	obs2 := &models.ParsedObservation{Type: models.ObsTypeBugfix, Title: "Low"}
-	obsID2, _, _ := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs2, int(sessionID), 2)
-	obsStore.UpdateImportanceScore(ctx, obsID2, 1.0)
-
-	obs3 := &models.ParsedObservation{Type: models.ObsTypeFeature, Title: "Medium"}
-	obsID3, _, _ := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs3, int(sessionID), 3)
-	obsStore.UpdateImportanceScore(ctx, obsID3, 3.0)
-
-	// Get top 2
-	topObs, err := obsStore.GetTopScoringObservations(ctx, "test-project", 2)
-	require.NoError(t, err)
-
-	require.Len(t, topObs, 2)
-	assert.True(t, topObs[0].Title.Valid)
-	assert.Equal(t, "High", topObs[0].Title.String)
-	assert.Equal(t, 5.0, topObs[0].ImportanceScore)
-	assert.True(t, topObs[1].Title.Valid)
-	assert.Equal(t, "Medium", topObs[1].Title.String)
-	assert.Equal(t, 3.0, topObs[1].ImportanceScore)
-}
-
-func TestObservationStore_GetMostRetrievedObservations(t *testing.T) {
-	obsStore, store, cleanup := testObservationStore(t)
-	defer cleanup()
-	ctx := context.Background()
-
-	sessionStore := NewSessionStore(store)
-	sessionID, _ := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-
-	// Create observations
-	obs1 := &models.ParsedObservation{Type: models.ObsTypeDiscovery, Title: "Popular"}
-	obsID1, _, _ := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs1, int(sessionID), 1)
-
-	obs2 := &models.ParsedObservation{Type: models.ObsTypeBugfix, Title: "Unpopular"}
-	obsID2, _, _ := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs2, int(sessionID), 2)
-
-	// Increment retrieval counts - each call increments by 1
-	obsStore.IncrementRetrievalCount(ctx, []int64{obsID1}) // increment by 1
-	obsStore.IncrementRetrievalCount(ctx, []int64{obsID1}) // increment by 1 again (total: 2)
-	obsStore.IncrementRetrievalCount(ctx, []int64{obsID1}) // increment by 1 again (total: 3)
-	obsStore.IncrementRetrievalCount(ctx, []int64{obsID2}) // increment by 1 (total: 1)
-
-	// Get most retrieved - should return obsID1 (Popular) with count 3
-	topObs, err := obsStore.GetMostRetrievedObservations(ctx, "test-project", 2)
-	require.NoError(t, err)
-
-	require.Len(t, topObs, 2)
-	assert.True(t, topObs[0].Title.Valid)
-	assert.Equal(t, "Popular", topObs[0].Title.String)
-	assert.Equal(t, 3, topObs[0].RetrievalCount)
-	assert.True(t, topObs[1].Title.Valid)
-	assert.Equal(t, "Unpopular", topObs[1].Title.String)
-	assert.Equal(t, 1, topObs[1].RetrievalCount)
-}
-
-func TestObservationStore_SetConceptWeights(t *testing.T) {
-	obsStore, _, cleanup := testObservationStore(t)
-	defer cleanup()
-	ctx := context.Background()
-
-	// Set weights
-	weights := map[string]float64{
-		"security":      2.0,
-		"performance":   1.5,
-		"best-practice": 1.8,
-	}
-
-	err := obsStore.SetConceptWeights(ctx, weights)
-	require.NoError(t, err)
-
-	// Get weights back
-	retrieved, err := obsStore.GetConceptWeights(ctx)
-	require.NoError(t, err)
-
-	assert.Equal(t, 2.0, retrieved["security"])
-	assert.Equal(t, 1.5, retrieved["performance"])
-	assert.Equal(t, 1.8, retrieved["best-practice"])
-
-	// Update weights (UPSERT)
-	weights["security"] = 2.5
-	weights["scalability"] = 1.2
-
-	err = obsStore.SetConceptWeights(ctx, weights)
-	require.NoError(t, err)
-
-	retrieved, err = obsStore.GetConceptWeights(ctx)
-	require.NoError(t, err)
-
-	assert.Equal(t, 2.5, retrieved["security"])      // updated
-	assert.Equal(t, 1.5, retrieved["performance"])   // unchanged
-	assert.Equal(t, 1.2, retrieved["scalability"])   // new
-	assert.Equal(t, 1.8, retrieved["best-practice"]) // unchanged
-}
-
-func TestObservationStore_GetObservationsNeedingScoreUpdate(t *testing.T) {
-	obsStore, store, cleanup := testObservationStore(t)
-	defer cleanup()
-	ctx := context.Background()
-
-	sessionStore := NewSessionStore(store)
-	sessionID, _ := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-
-	// Create observation with no score update
-	obs1 := &models.ParsedObservation{Type: models.ObsTypeDiscovery, Title: "Needs Update"}
-	obsID1, _, _ := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs1, int(sessionID), 1)
-
-	// Create observation with recent score update
-	obs2 := &models.ParsedObservation{Type: models.ObsTypeBugfix, Title: "Recently Updated"}
-	obsID2, _, _ := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs2, int(sessionID), 2)
-	obsStore.UpdateImportanceScore(ctx, obsID2, 2.0)
-
-	// Get observations needing update (within 1 hour threshold)
-	needsUpdate, err := obsStore.GetObservationsNeedingScoreUpdate(ctx, 1*time.Hour, 10)
-	require.NoError(t, err)
-
-	// Only obs1 should need update (obs2 was just updated)
-	assert.Len(t, needsUpdate, 1)
-	assert.Equal(t, obsID1, needsUpdate[0].ID)
-	assert.True(t, needsUpdate[0].Title.Valid)
-	assert.Equal(t, "Needs Update", needsUpdate[0].Title.String)
-}
-
-func TestObservationStore_ResetObservationScores(t *testing.T) {
-	obsStore, store, cleanup := testObservationStore(t)
-	defer cleanup()
-	ctx := context.Background()
-
-	sessionStore := NewSessionStore(store)
-	sessionID, _ := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-
-	// Create observations with custom scores
-	obs1 := &models.ParsedObservation{Type: models.ObsTypeDiscovery, Title: "Test1"}
-	obsID1, _, _ := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs1, int(sessionID), 1)
-	obsStore.UpdateImportanceScore(ctx, obsID1, 5.0)
-
-	obs2 := &models.ParsedObservation{Type: models.ObsTypeBugfix, Title: "Test2"}
-	obsID2, _, _ := obsStore.StoreObservation(ctx, "claude-1", "test-project", obs2, int(sessionID), 2)
-	obsStore.UpdateImportanceScore(ctx, obsID2, 3.0)
-
-	// Reset all scores
-	err := obsStore.ResetObservationScores(ctx)
-	require.NoError(t, err)
-
-	// Verify all scores are 1.0
-	var dbObs1, dbObs2 Observation
-	store.DB.First(&dbObs1, obsID1)
-	store.DB.First(&dbObs2, obsID2)
-
-	assert.Equal(t, 1.0, dbObs1.ImportanceScore)
-	assert.Equal(t, 1.0, dbObs2.ImportanceScore)
-}

internal/db/gorm/session_store.go

@@ -1,219 +0,0 @@
-// Package gorm provides GORM-based database operations for claude-mnemonic.
-package gorm
-
-import (
-	"context"
-	"database/sql"
-	"fmt"
-	"time"
-
-	"gorm.io/gorm"
-	"gorm.io/gorm/clause"
-
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-)
-
-// SessionStore provides session-related database operations using GORM.
-type SessionStore struct {
-	db *gorm.DB
-}
-
-// NewSessionStore creates a new session store.
-func NewSessionStore(store *Store) *SessionStore {
-	return &SessionStore{db: store.DB}
-}
-
-// CreateSDKSession creates a new SDK session (idempotent - returns existing ID if exists).
-// This is the KEY to how claude-mnemonic stays unified across hooks.
-func (s *SessionStore) CreateSDKSession(ctx context.Context, claudeSessionID, project, userPrompt string) (int64, error) {
-	now := time.Now()
-
-	session := &SDKSession{
-		ClaudeSessionID: claudeSessionID,
-		SDKSessionID: func() sql.NullString {
-			return sql.NullString{String: claudeSessionID, Valid: true}
-		}(),
-		Project: project,
-		UserPrompt: func() sql.NullString {
-			if userPrompt != "" {
-				return sql.NullString{String: userPrompt, Valid: true}
-			}
-			return sql.NullString{Valid: false}
-		}(),
-		Status:         "active",
-		StartedAt:      now.Format(time.RFC3339),
-		StartedAtEpoch: now.UnixMilli(),
-	}
-
-	// CRITICAL: INSERT OR IGNORE makes this idempotent
-	// Use OnConflict with DoNothing to achieve INSERT OR IGNORE behavior
-	result := s.db.WithContext(ctx).
-		Clauses(clause.OnConflict{
-			Columns:   []clause.Column{{Name: "claude_session_id"}},
-			DoNothing: true,
-		}).
-		Create(session)
-
-	if result.Error != nil {
-		return 0, result.Error
-	}
-
-	// Check if insert happened
-	if result.RowsAffected == 0 {
-		// Session exists - UPDATE project and user_prompt if we have non-empty values
-		if project != "" {
-			updates := map[string]interface{}{
-				"project": project,
-			}
-			if userPrompt != "" {
-				updates["user_prompt"] = userPrompt
-			}
-			if err := s.db.WithContext(ctx).
-				Model(&SDKSession{}).
-				Where("claude_session_id = ?", claudeSessionID).
-				Updates(updates).Error; err != nil {
-				return 0, fmt.Errorf("failed to update session: %w", err)
-			}
-		}
-
-		// Fetch existing session
-		var existing SDKSession
-		err := s.db.WithContext(ctx).
-			Where("claude_session_id = ?", claudeSessionID).
-			First(&existing).Error
-		if err != nil {
-			return 0, err
-		}
-		return existing.ID, nil
-	}
-
-	return session.ID, nil
-}
-
-// GetSessionByID retrieves a session by its database ID.
-func (s *SessionStore) GetSessionByID(ctx context.Context, id int64) (*models.SDKSession, error) {
-	var sess SDKSession
-	err := s.db.WithContext(ctx).First(&sess, id).Error
-	if err == gorm.ErrRecordNotFound {
-		return nil, nil
-	}
-	if err != nil {
-		return nil, err
-	}
-	return toModelSDKSession(&sess), nil
-}
-
-// FindAnySDKSession finds any session by Claude session ID (any status).
-func (s *SessionStore) FindAnySDKSession(ctx context.Context, claudeSessionID string) (*models.SDKSession, error) {
-	var sess SDKSession
-	err := s.db.WithContext(ctx).
-		Where("claude_session_id = ?", claudeSessionID).
-		First(&sess).Error
-	if err == gorm.ErrRecordNotFound {
-		return nil, nil
-	}
-	if err != nil {
-		return nil, err
-	}
-	return toModelSDKSession(&sess), nil
-}
-
-// IncrementPromptCounter increments the prompt counter and returns the new value.
-// Uses a single SQL query with RETURNING clause for optimal performance.
-func (s *SessionStore) IncrementPromptCounter(ctx context.Context, id int64) (int, error) {
-	// Use raw SQL with RETURNING to get updated value in single query
-	// SQLite supports RETURNING since version 3.35.0 (2021-03-12)
-	var newCounter int
-	err := s.db.WithContext(ctx).Raw(`
-		UPDATE sdk_sessions
-		SET prompt_counter = COALESCE(prompt_counter, 0) + 1
-		WHERE id = ?
-		RETURNING prompt_counter
-	`, id).Scan(&newCounter).Error
-
-	if err != nil {
-		// Fallback for older SQLite versions without RETURNING support
-		if err.Error() == "near \"RETURNING\": syntax error" || newCounter == 0 {
-			// Atomic increment
-			updateErr := s.db.WithContext(ctx).
-				Model(&SDKSession{}).
-				Where("id = ?", id).
-				Update("prompt_counter", gorm.Expr("COALESCE(prompt_counter, 0) + 1")).Error
-			if updateErr != nil {
-				return 0, updateErr
-			}
-
-			// Fetch updated value
-			var sess SDKSession
-			fetchErr := s.db.WithContext(ctx).
-				Select("prompt_counter").
-				First(&sess, id).Error
-			if fetchErr != nil {
-				return 0, fetchErr
-			}
-			return sess.PromptCounter, nil
-		}
-		return 0, err
-	}
-
-	return newCounter, nil
-}
-
-// GetPromptCounter returns the current prompt counter for a session.
-func (s *SessionStore) GetPromptCounter(ctx context.Context, id int64) (int, error) {
-	var sess SDKSession
-	err := s.db.WithContext(ctx).
-		Select("prompt_counter").
-		First(&sess, id).Error
-	if err != nil {
-		return 0, err
-	}
-	return sess.PromptCounter, nil
-}
-
-// GetSessionsToday returns the count of sessions started today.
-func (s *SessionStore) GetSessionsToday(ctx context.Context) (int, error) {
-	// Get start of today in milliseconds
-	now := time.Now()
-	startOfDay := time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, now.Location())
-	startEpoch := startOfDay.UnixMilli()
-
-	var count int64
-	err := s.db.WithContext(ctx).
-		Model(&SDKSession{}).
-		Where("started_at_epoch >= ?", startEpoch).
-		Count(&count).Error
-
-	return int(count), err
-}
-
-// GetAllProjects returns all unique project names.
-func (s *SessionStore) GetAllProjects(ctx context.Context) ([]string, error) {
-	var projects []string
-	err := s.db.WithContext(ctx).
-		Model(&SDKSession{}).
-		Distinct("project").
-		Where("project IS NOT NULL AND project != ''").
-		Order("project ASC").
-		Pluck("project", &projects).Error
-
-	return projects, err
-}
-
-// toModelSDKSession converts a GORM SDKSession to pkg/models.SDKSession.
-func toModelSDKSession(sess *SDKSession) *models.SDKSession {
-	return &models.SDKSession{
-		ID:               sess.ID,
-		ClaudeSessionID:  sess.ClaudeSessionID,
-		SDKSessionID:     sess.SDKSessionID,
-		Project:          sess.Project,
-		UserPrompt:       sess.UserPrompt,
-		WorkerPort:       sess.WorkerPort,
-		PromptCounter:    int64(sess.PromptCounter),
-		Status:           models.SessionStatus(sess.Status),
-		StartedAt:        sess.StartedAt,
-		StartedAtEpoch:   sess.StartedAtEpoch,
-		CompletedAt:      sess.CompletedAt,
-		CompletedAtEpoch: sess.CompletedAtEpoch,
-	}
-}

internal/db/gorm/session_store_test.go

@@ -1,259 +0,0 @@
-//go:build fts5
-
-// Package gorm provides GORM-based database operations for claude-mnemonic.
-package gorm
-
-import (
-	"context"
-	"os"
-	"path/filepath"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"gorm.io/gorm/logger"
-
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-)
-
-// testSessionStore creates a SessionStore with a temporary database for testing.
-func testSessionStore(t *testing.T) (*SessionStore, *Store, func()) {
-	t.Helper()
-
-	tmpDir, err := os.MkdirTemp("", "gorm_session_test_*")
-	if err != nil {
-		t.Fatalf("create temp dir: %v", err)
-	}
-
-	dbPath := filepath.Join(tmpDir, "test.db")
-	cfg := Config{
-		Path:     dbPath,
-		MaxConns: 4,
-		LogLevel: logger.Silent,
-	}
-
-	store, err := NewStore(cfg)
-	if err != nil {
-		os.RemoveAll(tmpDir)
-		t.Fatalf("NewStore failed: %v", err)
-	}
-
-	sessionStore := NewSessionStore(store)
-
-	cleanup := func() {
-		store.Close()
-		os.RemoveAll(tmpDir)
-	}
-
-	return sessionStore, store, cleanup
-}
-
-func TestSessionStore_CreateSDKSession(t *testing.T) {
-	sessionStore, _, cleanup := testSessionStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Create a new session
-	id, err := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "initial prompt")
-	require.NoError(t, err)
-	assert.Greater(t, id, int64(0))
-
-	// Retrieve and verify
-	sess, err := sessionStore.GetSessionByID(ctx, id)
-	require.NoError(t, err)
-	require.NotNil(t, sess)
-	assert.Equal(t, "claude-1", sess.ClaudeSessionID)
-	assert.Equal(t, "test-project", sess.Project)
-	assert.Equal(t, models.SessionStatusActive, sess.Status)
-	assert.True(t, sess.UserPrompt.Valid)
-	assert.Equal(t, "initial prompt", sess.UserPrompt.String)
-}
-
-func TestSessionStore_CreateSDKSession_Idempotent(t *testing.T) {
-	sessionStore, _, cleanup := testSessionStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Create first session
-	id1, err := sessionStore.CreateSDKSession(ctx, "claude-1", "project-a", "prompt 1")
-	require.NoError(t, err)
-
-	// Create again with same claude_session_id but different project
-	id2, err := sessionStore.CreateSDKSession(ctx, "claude-1", "project-b", "prompt 2")
-	require.NoError(t, err)
-
-	// Should return same ID (idempotent)
-	assert.Equal(t, id1, id2)
-
-	// Should have updated project to project-b
-	sess, err := sessionStore.GetSessionByID(ctx, id1)
-	require.NoError(t, err)
-	assert.Equal(t, "project-b", sess.Project)
-	assert.Equal(t, "prompt 2", sess.UserPrompt.String)
-}
-
-func TestSessionStore_CreateSDKSession_EmptyPrompt(t *testing.T) {
-	sessionStore, _, cleanup := testSessionStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Create session with empty prompt
-	id, err := sessionStore.CreateSDKSession(ctx, "claude-2", "test-project", "")
-	require.NoError(t, err)
-	assert.Greater(t, id, int64(0))
-
-	// Verify prompt is NULL
-	sess, err := sessionStore.GetSessionByID(ctx, id)
-	require.NoError(t, err)
-	assert.False(t, sess.UserPrompt.Valid)
-}
-
-func TestSessionStore_FindAnySDKSession(t *testing.T) {
-	sessionStore, _, cleanup := testSessionStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Create a session
-	_, err := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-	require.NoError(t, err)
-
-	// Find it
-	sess, err := sessionStore.FindAnySDKSession(ctx, "claude-1")
-	require.NoError(t, err)
-	require.NotNil(t, sess)
-	assert.Equal(t, "claude-1", sess.ClaudeSessionID)
-
-	// Try to find non-existent
-	sess, err = sessionStore.FindAnySDKSession(ctx, "claude-nonexistent")
-	require.NoError(t, err)
-	assert.Nil(t, sess)
-}
-
-func TestSessionStore_GetSessionByID_NotFound(t *testing.T) {
-	sessionStore, _, cleanup := testSessionStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Try to get non-existent session
-	sess, err := sessionStore.GetSessionByID(ctx, 99999)
-	require.NoError(t, err)
-	assert.Nil(t, sess)
-}
-
-func TestSessionStore_IncrementPromptCounter(t *testing.T) {
-	sessionStore, _, cleanup := testSessionStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Create a session
-	id, err := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-	require.NoError(t, err)
-
-	// Initial counter should be 0
-	counter, err := sessionStore.GetPromptCounter(ctx, id)
-	require.NoError(t, err)
-	assert.Equal(t, 0, counter)
-
-	// Increment
-	counter, err = sessionStore.IncrementPromptCounter(ctx, id)
-	require.NoError(t, err)
-	assert.Equal(t, 1, counter)
-
-	// Increment again
-	counter, err = sessionStore.IncrementPromptCounter(ctx, id)
-	require.NoError(t, err)
-	assert.Equal(t, 2, counter)
-
-	// Verify via GetPromptCounter
-	counter, err = sessionStore.GetPromptCounter(ctx, id)
-	require.NoError(t, err)
-	assert.Equal(t, 2, counter)
-}
-
-func TestSessionStore_GetSessionsToday(t *testing.T) {
-	sessionStore, _, cleanup := testSessionStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Initially should be 0
-	count, err := sessionStore.GetSessionsToday(ctx)
-	require.NoError(t, err)
-	assert.Equal(t, 0, count)
-
-	// Create some sessions
-	_, err = sessionStore.CreateSDKSession(ctx, "claude-1", "project-1", "")
-	require.NoError(t, err)
-
-	_, err = sessionStore.CreateSDKSession(ctx, "claude-2", "project-2", "")
-	require.NoError(t, err)
-
-	// Should now have 2 sessions today
-	count, err = sessionStore.GetSessionsToday(ctx)
-	require.NoError(t, err)
-	assert.Equal(t, 2, count)
-}
-
-func TestSessionStore_GetAllProjects(t *testing.T) {
-	sessionStore, _, cleanup := testSessionStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Initially should be empty
-	projects, err := sessionStore.GetAllProjects(ctx)
-	require.NoError(t, err)
-	assert.Empty(t, projects)
-
-	// Create sessions with different projects
-	_, err = sessionStore.CreateSDKSession(ctx, "claude-1", "project-a", "")
-	require.NoError(t, err)
-
-	_, err = sessionStore.CreateSDKSession(ctx, "claude-2", "project-b", "")
-	require.NoError(t, err)
-
-	_, err = sessionStore.CreateSDKSession(ctx, "claude-3", "project-a", "") // Duplicate project
-	require.NoError(t, err)
-
-	// Should get distinct projects in alphabetical order
-	projects, err = sessionStore.GetAllProjects(ctx)
-	require.NoError(t, err)
-	assert.Equal(t, []string{"project-a", "project-b"}, projects)
-}
-
-func TestSessionStore_SessionFields(t *testing.T) {
-	sessionStore, _, cleanup := testSessionStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Create a session
-	id, err := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "test prompt")
-	require.NoError(t, err)
-
-	// Retrieve and verify all fields
-	sess, err := sessionStore.GetSessionByID(ctx, id)
-	require.NoError(t, err)
-	require.NotNil(t, sess)
-
-	// Verify all fields
-	assert.Equal(t, id, sess.ID)
-	assert.Equal(t, "claude-1", sess.ClaudeSessionID)
-	assert.True(t, sess.SDKSessionID.Valid)
-	assert.Equal(t, "claude-1", sess.SDKSessionID.String) // Should be same as ClaudeSessionID
-	assert.Equal(t, "test-project", sess.Project)
-	assert.True(t, sess.UserPrompt.Valid)
-	assert.Equal(t, "test prompt", sess.UserPrompt.String)
-	assert.Equal(t, int64(0), sess.PromptCounter)
-	assert.Equal(t, models.SessionStatusActive, sess.Status)
-	assert.NotEmpty(t, sess.StartedAt)
-	assert.Greater(t, sess.StartedAtEpoch, int64(0))
-	assert.False(t, sess.CompletedAt.Valid)      // Should be NULL
-	assert.False(t, sess.CompletedAtEpoch.Valid) // Should be NULL
-}

internal/db/gorm/sqlite_build.go

@@ -1,8 +0,0 @@
-//go:build !sqlite_omit_load_extension
-// +build !sqlite_omit_load_extension
-
-// Package gorm provides GORM-based database operations for claude-mnemonic.
-package gorm
-
-// This file ensures mattn/go-sqlite3 is built with FTS5 and other extensions enabled.
-// The build tag ensures extensions are not omitted.

internal/db/gorm/store.go

@@ -1,539 +0,0 @@
-// Package gorm provides GORM-based database operations for claude-mnemonic.
-package gorm
-
-import (
-	"context"
-	"database/sql"
-	"fmt"
-	"slices"
-	"sync"
-	"time"
-
-	sqlite_vec "github.com/asg017/sqlite-vec-go-bindings/cgo"
-	_ "github.com/mattn/go-sqlite3" // Import SQLite driver with FTS5 support
-	"github.com/rs/zerolog/log"
-	"gorm.io/driver/sqlite"
-	"gorm.io/gorm"
-	"gorm.io/gorm/logger"
-)
-
-// Store represents the GORM database connection with sqlite-vec support.
-type Store struct {
-	healthCacheTime time.Time
-	DB              *gorm.DB
-	sqlDB           *sql.DB
-	metrics         *PoolMetrics
-	cachedHealth    *HealthInfo
-	healthCacheTTL  time.Duration
-	healthCacheMu   sync.RWMutex
-}
-
-// Config holds database configuration.
-type Config struct {
-	Path     string          // Path to SQLite database file
-	MaxConns int             // Maximum number of open connections (default: 4)
-	LogLevel logger.LogLevel // GORM log level (logger.Silent for production)
-}
-
-// NewStore creates a new Store with WAL mode enabled and sqlite-vec registered.
-// CRITICAL: WAL mode and foreign keys are enabled via pragmas for concurrent reads.
-func NewStore(cfg Config) (*Store, error) {
-	// 1. Register sqlite-vec extension (must be done before opening database)
-	sqlite_vec.Auto()
-
-	// 2. Build connection string (foreign keys enabled in DSN)
-	// Use sqlite3 driver (mattn/go-sqlite3) which has FTS5 support
-	dsn := cfg.Path + "?_foreign_keys=ON"
-
-	// 3. Open raw database connection with mattn/go-sqlite3 (has FTS5 support)
-	sqlDB, err := sql.Open("sqlite3", dsn)
-	if err != nil {
-		return nil, fmt.Errorf("open database: %w", err)
-	}
-
-	// 4. Wrap with GORM using existing connection
-	db, err := gorm.Open(sqlite.Dialector{
-		Conn: sqlDB,
-	}, &gorm.Config{
-		Logger: logger.Default.LogMode(cfg.LogLevel),
-		// PrepareStmt enables prepared statement caching for performance
-		PrepareStmt: true,
-		// Disable default timestamp fields (we manage created_at manually)
-		NowFunc: nil,
-	})
-	if err != nil {
-		_ = sqlDB.Close() // Explicitly ignore close error during cleanup
-		return nil, fmt.Errorf("open gorm: %w", err)
-	}
-
-	// 5. Configure connection pool (same settings as current implementation)
-	maxConns := cfg.MaxConns
-	if maxConns <= 0 {
-		maxConns = 4
-	}
-	sqlDB.SetMaxOpenConns(maxConns)
-	sqlDB.SetMaxIdleConns(maxConns)
-	sqlDB.SetConnMaxLifetime(0) // Never expire (SQLite connections are cheap)
-
-	// 6. Verify connection
-	if err := sqlDB.Ping(); err != nil {
-		return nil, fmt.Errorf("ping database: %w", err)
-	}
-
-	store := &Store{
-		DB:             db,
-		sqlDB:          sqlDB,
-		metrics:        NewPoolMetrics(100), // Track last 100 latency samples
-		healthCacheTTL: 5 * time.Second,     // Cache health checks for 5 seconds
-	}
-
-	// 7. Run migrations FIRST (before PRAGMA commands)
-	if err := runMigrations(db, sqlDB); err != nil {
-		return nil, fmt.Errorf("run migrations: %w", err)
-	}
-
-	// 8. CRITICAL: Set WAL mode and other performance pragmas
-	// Use raw sqlDB to avoid GORM transaction issues
-	pragmas := []string{
-		"PRAGMA journal_mode=WAL",
-		"PRAGMA synchronous=NORMAL",
-		"PRAGMA cache_size=-64000",   // 64MB cache (negative = KB)
-		"PRAGMA temp_store=MEMORY",   // Store temp tables in memory
-		"PRAGMA mmap_size=268435456", // 256MB memory-mapped I/O
-		"PRAGMA page_size=4096",      // 4KB pages (optimal for most systems)
-	}
-	for _, pragma := range pragmas {
-		if _, err := sqlDB.Exec(pragma); err != nil {
-			log.Warn().Str("pragma", pragma).Err(err).Msg("Failed to set pragma (non-fatal)")
-		}
-	}
-	// Set busy timeout to 5 seconds to handle concurrent writes
-	// This allows SQLite to retry when database is locked instead of failing immediately
-	if _, err := sqlDB.Exec("PRAGMA busy_timeout=5000"); err != nil {
-		return nil, fmt.Errorf("set busy timeout: %w", err)
-	}
-
-	// 9. Warm the connection pool
-	store.WarmPool(maxConns)
-
-	return store, nil
-}
-
-// WarmPool pre-creates connections to avoid cold start latency.
-func (s *Store) WarmPool(numConns int) {
-	if numConns <= 0 {
-		numConns = 4
-	}
-
-	var wg sync.WaitGroup
-	for i := 0; i < numConns; i++ {
-		wg.Add(1)
-		go func() {
-			defer wg.Done()
-			ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
-			defer cancel()
-
-			conn, err := s.sqlDB.Conn(ctx)
-			if err != nil {
-				return
-			}
-			// Execute a simple query to ensure the connection is fully initialized
-			_ = conn.PingContext(ctx)
-			// Return connection to pool (don't close it)
-			_ = conn.Close()
-		}()
-	}
-	wg.Wait()
-	log.Debug().Int("connections", numConns).Msg("Connection pool warmed")
-}
-
-// Close closes the database connection.
-func (s *Store) Close() error {
-	return s.sqlDB.Close()
-}
-
-// Ping verifies the database connection is alive.
-func (s *Store) Ping() error {
-	return s.sqlDB.Ping()
-}
-
-// GetRawDB returns the underlying *sql.DB for operations GORM can't handle.
-// Use this for:
-// - FTS5 full-text search queries (MATCH operator)
-// - sqlite-vec vector operations
-// - Complex raw SQL queries
-func (s *Store) GetRawDB() *sql.DB {
-	return s.sqlDB
-}
-
-// GetDB returns the GORM DB instance for standard queries.
-func (s *Store) GetDB() *gorm.DB {
-	return s.DB
-}
-
-// Stats returns database connection pool statistics.
-func (s *Store) Stats() sql.DBStats {
-	return s.sqlDB.Stats()
-}
-
-// Optimize runs VACUUM and ANALYZE to optimize the database.
-// Should be called periodically (e.g., daily) during low activity.
-func (s *Store) Optimize(ctx context.Context) error {
-	log.Info().Msg("Starting database optimization")
-	start := time.Now()
-
-	// ANALYZE updates statistics for query optimizer
-	if _, err := s.sqlDB.ExecContext(ctx, "ANALYZE"); err != nil {
-		return fmt.Errorf("analyze: %w", err)
-	}
-
-	// PRAGMA optimize runs optimization based on query statistics
-	if _, err := s.sqlDB.ExecContext(ctx, "PRAGMA optimize"); err != nil {
-		log.Warn().Err(err).Msg("PRAGMA optimize failed (non-fatal)")
-	}
-
-	log.Info().Dur("duration", time.Since(start)).Msg("Database optimization complete")
-	return nil
-}
-
-// HealthCheck performs a comprehensive health check with latency measurement.
-// Returns detailed health information including connection pool stats and query latency.
-// Results are cached for healthCacheTTL (default 5 seconds) to reduce database load
-// from frequent monitoring calls.
-func (s *Store) HealthCheck(ctx context.Context) *HealthInfo {
-	// Fast path: check cache with read lock
-	s.healthCacheMu.RLock()
-	if s.cachedHealth != nil && time.Since(s.healthCacheTime) < s.healthCacheTTL {
-		cached := s.cachedHealth
-		s.healthCacheMu.RUnlock()
-		return cached
-	}
-	s.healthCacheMu.RUnlock()
-
-	// Slow path: perform actual health check
-	info := s.performHealthCheck(ctx)
-
-	// Cache the result
-	s.healthCacheMu.Lock()
-	s.cachedHealth = info
-	s.healthCacheTime = time.Now()
-	s.healthCacheMu.Unlock()
-
-	return info
-}
-
-// HealthCheckForce performs a health check bypassing the cache.
-// Use this when you need real-time health data (e.g., debugging, alerting).
-func (s *Store) HealthCheckForce(ctx context.Context) *HealthInfo {
-	info := s.performHealthCheck(ctx)
-
-	// Update the cache with fresh data
-	s.healthCacheMu.Lock()
-	s.cachedHealth = info
-	s.healthCacheTime = time.Now()
-	s.healthCacheMu.Unlock()
-
-	return info
-}
-
-// performHealthCheck does the actual health check work.
-func (s *Store) performHealthCheck(ctx context.Context) *HealthInfo {
-	info := &HealthInfo{
-		Status:    "healthy",
-		Timestamp: time.Now(),
-	}
-
-	// Check pool stats
-	stats := s.sqlDB.Stats()
-	info.PoolStats = PoolStats{
-		OpenConnections:   stats.OpenConnections,
-		InUse:             stats.InUse,
-		Idle:              stats.Idle,
-		WaitCount:         stats.WaitCount,
-		WaitDuration:      stats.WaitDuration,
-		MaxIdleClosed:     stats.MaxIdleClosed,
-		MaxLifetimeClosed: stats.MaxLifetimeClosed,
-	}
-
-	// Record pool stats for metrics tracking
-	if s.metrics != nil {
-		s.metrics.RecordPoolStats(stats)
-	}
-
-	// Measure query latency with a simple SELECT
-	start := time.Now()
-	var dummy int
-	err := s.sqlDB.QueryRowContext(ctx, "SELECT 1").Scan(&dummy)
-	info.QueryLatency = time.Since(start)
-
-	// Record latency for historical tracking
-	if s.metrics != nil {
-		s.metrics.RecordLatency(info.QueryLatency)
-		info.HistoricalMetrics = s.metrics.GetMetricsSummary()
-	}
-
-	if err != nil {
-		info.Status = "unhealthy"
-		info.Error = err.Error()
-		return info
-	}
-
-	// Check for connection saturation (degraded if pool is heavily used)
-	if stats.InUse > 0 && float64(stats.InUse)/float64(stats.OpenConnections) > 0.8 {
-		info.Status = "degraded"
-		info.Warning = "Connection pool heavily utilized"
-	}
-
-	// Check for wait contention
-	if stats.WaitCount > 100 && stats.WaitDuration > 100*time.Millisecond {
-		info.Status = "degraded"
-		info.Warning = "Connection pool contention detected"
-	}
-
-	// Check query latency (warn if > 10ms for simple query)
-	if info.QueryLatency > 10*time.Millisecond {
-		if info.Status == "healthy" {
-			info.Status = "degraded"
-		}
-		info.Warning = fmt.Sprintf("Slow query latency: %v", info.QueryLatency)
-	}
-
-	// Check historical latency trend (degraded if P95 is high)
-	if s.metrics != nil && info.HistoricalMetrics.P95Latency > 50*time.Millisecond {
-		if info.Status == "healthy" {
-			info.Status = "degraded"
-		}
-		info.Warning = fmt.Sprintf("High P95 latency: %v", info.HistoricalMetrics.P95Latency)
-	}
-
-	return info
-}
-
-// HealthInfo contains database health check results.
-type HealthInfo struct {
-	Timestamp         time.Time      `json:"timestamp"`
-	Status            string         `json:"status"`
-	Error             string         `json:"error,omitempty"`
-	Warning           string         `json:"warning,omitempty"`
-	HistoricalMetrics MetricsSummary `json:"historical_metrics,omitempty"`
-	PoolStats         PoolStats      `json:"pool_stats"`
-	QueryLatency      time.Duration  `json:"query_latency_ns"`
-}
-
-// PoolStats contains connection pool statistics.
-type PoolStats struct {
-	OpenConnections   int           `json:"open_connections"`
-	InUse             int           `json:"in_use"`
-	Idle              int           `json:"idle"`
-	WaitCount         int64         `json:"wait_count"`
-	WaitDuration      time.Duration `json:"wait_duration_ns"`
-	MaxIdleClosed     int64         `json:"max_idle_closed"`
-	MaxLifetimeClosed int64         `json:"max_lifetime_closed"`
-}
-
-// QueryTimeout constants for different query types.
-const (
-	// DefaultQueryTimeout is the default timeout for regular queries.
-	DefaultQueryTimeout = 5 * time.Second
-	// FastQueryTimeout is for queries that should be very fast (health checks, etc).
-	FastQueryTimeout = 1 * time.Second
-	// SlowQueryTimeout is for queries that may take longer (bulk operations, rebuilds).
-	SlowQueryTimeout = 30 * time.Second
-)
-
-// PoolMetrics tracks historical connection pool metrics with a sliding window.
-type PoolMetrics struct {
-	lastSampleTime time.Time
-	latencySamples []time.Duration
-	latencyIdx     int
-	latencyCount   int
-	totalQueries   int64
-	totalWaitTime  time.Duration
-	peakInUse      int
-	peakWaitCount  int64
-	windowSize     int
-	mu             sync.RWMutex
-}
-
-// NewPoolMetrics creates a new pool metrics collector with the given window size.
-func NewPoolMetrics(windowSize int) *PoolMetrics {
-	if windowSize <= 0 {
-		windowSize = 100 // Default: track last 100 samples
-	}
-	return &PoolMetrics{
-		latencySamples: make([]time.Duration, windowSize),
-		windowSize:     windowSize,
-		lastSampleTime: time.Now(),
-	}
-}
-
-// RecordLatency records a query latency sample.
-func (m *PoolMetrics) RecordLatency(latency time.Duration) {
-	m.mu.Lock()
-	defer m.mu.Unlock()
-
-	m.latencySamples[m.latencyIdx] = latency
-	m.latencyIdx = (m.latencyIdx + 1) % m.windowSize
-	if m.latencyCount < m.windowSize {
-		m.latencyCount++
-	}
-	m.totalQueries++
-	m.lastSampleTime = time.Now()
-}
-
-// RecordPoolStats records pool statistics for peak tracking.
-func (m *PoolMetrics) RecordPoolStats(stats sql.DBStats) {
-	m.mu.Lock()
-	defer m.mu.Unlock()
-
-	if stats.InUse > m.peakInUse {
-		m.peakInUse = stats.InUse
-	}
-	if stats.WaitCount > m.peakWaitCount {
-		m.peakWaitCount = stats.WaitCount
-	}
-	m.totalWaitTime += stats.WaitDuration
-}
-
-// GetMetricsSummary returns a summary of collected metrics.
-func (m *PoolMetrics) GetMetricsSummary() MetricsSummary {
-	m.mu.RLock()
-	defer m.mu.RUnlock()
-
-	summary := MetricsSummary{
-		TotalQueries:   m.totalQueries,
-		SampleCount:    m.latencyCount,
-		PeakInUse:      m.peakInUse,
-		PeakWaitCount:  m.peakWaitCount,
-		TotalWaitTime:  m.totalWaitTime,
-		LastSampleTime: m.lastSampleTime,
-	}
-
-	if m.latencyCount == 0 {
-		return summary
-	}
-
-	// Calculate latency statistics
-	var total time.Duration
-	var min, max time.Duration = m.latencySamples[0], m.latencySamples[0]
-
-	for i := 0; i < m.latencyCount; i++ {
-		sample := m.latencySamples[i]
-		total += sample
-		if sample < min {
-			min = sample
-		}
-		if sample > max {
-			max = sample
-		}
-	}
-
-	summary.AvgLatency = total / time.Duration(m.latencyCount)
-	summary.MinLatency = min
-	summary.MaxLatency = max
-
-	// Calculate P95 latency (approximate using sorted samples)
-	if m.latencyCount >= 20 {
-		// Copy samples for sorting
-		samples := make([]time.Duration, m.latencyCount)
-		copy(samples, m.latencySamples[:m.latencyCount])
-		// Use slices.Sort for O(n log n) instead of O(n²) insertion sort
-		slices.Sort(samples)
-		p95Idx := int(float64(len(samples)) * 0.95)
-		summary.P95Latency = samples[p95Idx]
-	}
-
-	return summary
-}
-
-// MetricsSummary contains aggregated pool metrics.
-type MetricsSummary struct {
-	LastSampleTime time.Time     `json:"last_sample_time"`
-	TotalQueries   int64         `json:"total_queries"`
-	SampleCount    int           `json:"sample_count"`
-	AvgLatency     time.Duration `json:"avg_latency_ns"`
-	MinLatency     time.Duration `json:"min_latency_ns"`
-	MaxLatency     time.Duration `json:"max_latency_ns"`
-	P95Latency     time.Duration `json:"p95_latency_ns,omitempty"`
-	PeakInUse      int           `json:"peak_in_use"`
-	PeakWaitCount  int64         `json:"peak_wait_count"`
-	TotalWaitTime  time.Duration `json:"total_wait_time_ns"`
-}
-
-// GetMetrics returns the current metrics without performing a health check.
-func (s *Store) GetMetrics() MetricsSummary {
-	if s.metrics == nil {
-		return MetricsSummary{}
-	}
-	return s.metrics.GetMetricsSummary()
-}
-
-// ResetMetrics resets the metrics collector (useful for testing or after major changes).
-func (s *Store) ResetMetrics() {
-	if s.metrics != nil {
-		s.metrics = NewPoolMetrics(s.metrics.windowSize)
-	}
-}
-
-// WithTimeout wraps a context with the given timeout and logs slow queries.
-// Returns the wrapped context and a cancel function that should be called when done.
-func (s *Store) WithTimeout(ctx context.Context, timeout time.Duration, operation string) (context.Context, context.CancelFunc) {
-	timeoutCtx, cancel := context.WithTimeout(ctx, timeout)
-	start := time.Now()
-
-	// Return wrapped cancel that logs if query was slow
-	return timeoutCtx, func() {
-		elapsed := time.Since(start)
-		cancel()
-
-		// Log slow queries (> 100ms)
-		if elapsed > 100*time.Millisecond {
-			log.Warn().
-				Str("operation", operation).
-				Dur("elapsed", elapsed).
-				Dur("timeout", timeout).
-				Msg("Slow database operation")
-		}
-	}
-}
-
-// ExecWithTimeout executes a raw SQL query with timeout.
-// Returns error if query takes longer than timeout.
-func (s *Store) ExecWithTimeout(ctx context.Context, timeout time.Duration, query string, args ...any) error {
-	timeoutCtx, cancel := s.WithTimeout(ctx, timeout, "exec")
-	defer cancel()
-
-	_, err := s.sqlDB.ExecContext(timeoutCtx, query, args...)
-	if err != nil {
-		if err == context.DeadlineExceeded {
-			return fmt.Errorf("query timeout after %v: %s", timeout, query)
-		}
-		return err
-	}
-	return nil
-}
-
-// QueryRowWithTimeout executes a row query with timeout.
-func (s *Store) QueryRowWithTimeout(ctx context.Context, timeout time.Duration, query string, args ...any) *sql.Row {
-	timeoutCtx, cancel := s.WithTimeout(ctx, timeout, "query_row")
-	// Note: cancel will be called when row.Scan() completes or errors
-	_ = cancel // Caller must ensure proper cleanup
-	return s.sqlDB.QueryRowContext(timeoutCtx, query, args...)
-}
-
-// TransactionWithTimeout wraps a transaction function with timeout handling.
-// The transaction is automatically rolled back if the context times out.
-func (s *Store) TransactionWithTimeout(ctx context.Context, timeout time.Duration, fn func(*gorm.DB) error) error {
-	timeoutCtx, cancel := s.WithTimeout(ctx, timeout, "transaction")
-	defer cancel()
-
-	return s.DB.WithContext(timeoutCtx).Transaction(func(tx *gorm.DB) error {
-		// Check context before proceeding
-		select {
-		case <-timeoutCtx.Done():
-			return timeoutCtx.Err()
-		default:
-		}
-		return fn(tx)
-	})
-}

internal/db/gorm/store_test.go

@@ -1,152 +0,0 @@
-//go:build fts5
-
-// Package gorm provides GORM-based database operations for claude-mnemonic.
-package gorm
-
-import (
-	"os"
-	"path/filepath"
-	"testing"
-
-	"gorm.io/gorm/logger"
-)
-
-func TestNewStore(t *testing.T) {
-	// Create temporary directory for test database
-	tmpDir, err := os.MkdirTemp("", "gorm_test_*")
-	if err != nil {
-		t.Fatalf("create temp dir: %v", err)
-	}
-	defer os.RemoveAll(tmpDir)
-
-	dbPath := filepath.Join(tmpDir, "test.db")
-
-	// Create store with migrations
-	cfg := Config{
-		Path:     dbPath,
-		MaxConns: 4,
-		LogLevel: logger.Silent,
-	}
-
-	store, err := NewStore(cfg)
-	if err != nil {
-		t.Fatalf("NewStore failed: %v", err)
-	}
-	defer store.Close()
-
-	// Verify connection works
-	sqlDB := store.GetRawDB()
-	if err := sqlDB.Ping(); err != nil {
-		t.Fatalf("ping failed: %v", err)
-	}
-
-	// Verify WAL mode is enabled
-	var journalMode string
-	err = store.DB.Raw("PRAGMA journal_mode").Scan(&journalMode).Error
-	if err != nil {
-		t.Fatalf("query journal_mode failed: %v", err)
-	}
-	if journalMode != "wal" {
-		t.Errorf("expected WAL mode, got %q", journalMode)
-	}
-
-	// Verify core tables exist
-	tables := []string{
-		"sdk_sessions",
-		"observations",
-		"session_summaries",
-		"user_prompts",
-		"observation_conflicts",
-		"observation_relations",
-		"patterns",
-		"concept_weights",
-	}
-
-	for _, table := range tables {
-		exists := store.DB.Migrator().HasTable(table)
-		if !exists {
-			t.Errorf("table %q does not exist", table)
-		}
-	}
-
-	// Verify FTS5 virtual tables exist (cannot use Migrator().HasTable for virtual tables)
-	ftsTables := []string{
-		"user_prompts_fts",
-		"observations_fts",
-		"session_summaries_fts",
-		"patterns_fts",
-	}
-
-	for _, table := range ftsTables {
-		var count int
-		err := store.DB.Raw("SELECT COUNT(*) FROM sqlite_master WHERE type='table' AND name=?", table).Scan(&count).Error
-		if err != nil {
-			t.Errorf("check FTS table %q failed: %v", table, err)
-		}
-		if count != 1 {
-			t.Errorf("FTS table %q does not exist", table)
-		}
-	}
-
-	// Verify vectors table exists (virtual table)
-	var vectorsCount int
-	err = store.DB.Raw("SELECT COUNT(*) FROM sqlite_master WHERE type='table' AND name='vectors'").Scan(&vectorsCount).Error
-	if err != nil {
-		t.Errorf("check vectors table failed: %v", err)
-	}
-	if vectorsCount != 1 {
-		t.Errorf("vectors table does not exist")
-	}
-
-	// Verify concept_weights seed data exists
-	var conceptCount int64
-	store.DB.Model(&ConceptWeight{}).Count(&conceptCount)
-	if conceptCount != 12 {
-		t.Errorf("expected 12 concept weights, got %d", conceptCount)
-	}
-
-	t.Logf("✅ Phase 1 Foundation: All migrations successful")
-	t.Logf("   - Core tables: %d", len(tables))
-	t.Logf("   - FTS5 tables: %d", len(ftsTables))
-	t.Logf("   - Vector table: 1")
-	t.Logf("   - Seed data: %d concept weights", conceptCount)
-}
-
-func TestMigrationIdempotency(t *testing.T) {
-	// Create temporary directory for test database
-	tmpDir, err := os.MkdirTemp("", "gorm_idempotency_*")
-	if err != nil {
-		t.Fatalf("create temp dir: %v", err)
-	}
-	defer os.RemoveAll(tmpDir)
-
-	dbPath := filepath.Join(tmpDir, "test.db")
-	cfg := Config{
-		Path:     dbPath,
-		MaxConns: 4,
-		LogLevel: logger.Silent,
-	}
-
-	// Run migrations first time
-	store1, err := NewStore(cfg)
-	if err != nil {
-		t.Fatalf("NewStore (first) failed: %v", err)
-	}
-	store1.Close()
-
-	// Run migrations second time (should be idempotent)
-	store2, err := NewStore(cfg)
-	if err != nil {
-		t.Fatalf("NewStore (second) failed: %v", err)
-	}
-	defer store2.Close()
-
-	// Verify concept_weights seed data is still exactly 12 (INSERT OR IGNORE)
-	var conceptCount int64
-	store2.DB.Model(&ConceptWeight{}).Count(&conceptCount)
-	if conceptCount != 12 {
-		t.Errorf("expected 12 concept weights after second migration, got %d", conceptCount)
-	}
-
-	t.Logf("✅ Migrations are idempotent")
-}

internal/db/gorm/summary_store.go

@@ -1,171 +0,0 @@
-// Package gorm provides GORM-based database operations for claude-mnemonic.
-package gorm
-
-import (
-	"context"
-	"database/sql"
-	"time"
-
-	"gorm.io/gorm"
-
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-)
-
-// SummaryStore provides summary-related database operations using GORM.
-type SummaryStore struct {
-	db *gorm.DB
-}
-
-// NewSummaryStore creates a new summary store.
-func NewSummaryStore(store *Store) *SummaryStore {
-	return &SummaryStore{db: store.DB}
-}
-
-// StoreSummary stores a new session summary.
-func (s *SummaryStore) StoreSummary(ctx context.Context, sdkSessionID, project string, summary *models.ParsedSummary, promptNumber int, discoveryTokens int64) (int64, int64, error) {
-	now := time.Now()
-	nowEpoch := now.UnixMilli()
-
-	// Ensure session exists (auto-create if missing)
-	if err := EnsureSessionExists(ctx, s.db, sdkSessionID, project); err != nil {
-		return 0, 0, err
-	}
-
-	dbSummary := &SessionSummary{
-		SDKSessionID: sdkSessionID,
-		Project:      project,
-		Request:      nullString(summary.Request),
-		Investigated: nullString(summary.Investigated),
-		Learned:      nullString(summary.Learned),
-		Completed:    nullString(summary.Completed),
-		NextSteps:    nullString(summary.NextSteps),
-		Notes:        nullString(summary.Notes),
-		PromptNumber: func() sql.NullInt64 {
-			if promptNumber > 0 {
-				return sql.NullInt64{Int64: int64(promptNumber), Valid: true}
-			}
-			return sql.NullInt64{Valid: false}
-		}(),
-		DiscoveryTokens: discoveryTokens,
-		CreatedAt:       now.Format(time.RFC3339),
-		CreatedAtEpoch:  nowEpoch,
-	}
-
-	err := s.db.WithContext(ctx).Create(dbSummary).Error
-	if err != nil {
-		return 0, 0, err
-	}
-
-	return dbSummary.ID, nowEpoch, nil
-}
-
-// GetSummariesByIDs retrieves summaries by a list of IDs.
-func (s *SummaryStore) GetSummariesByIDs(ctx context.Context, ids []int64, orderBy string, limit int) ([]*models.SessionSummary, error) {
-	if len(ids) == 0 {
-		return nil, nil
-	}
-
-	var dbSummaries []SessionSummary
-	query := s.db.WithContext(ctx).Where("id IN ?", ids)
-
-	// Apply ordering
-	switch orderBy {
-	case "date_asc":
-		query = query.Order("created_at_epoch ASC")
-	case "date_desc", "default", "":
-		query = query.Order("created_at_epoch DESC")
-	}
-
-	// Apply limit
-	if limit > 0 {
-		query = query.Limit(limit)
-	}
-
-	err := query.Find(&dbSummaries).Error
-	if err != nil {
-		return nil, err
-	}
-
-	return toModelSessionSummaries(dbSummaries), nil
-}
-
-// GetRecentSummaries retrieves recent summaries for a project.
-func (s *SummaryStore) GetRecentSummaries(ctx context.Context, project string, limit int) ([]*models.SessionSummary, error) {
-	var dbSummaries []SessionSummary
-	err := s.db.WithContext(ctx).
-		Where("project = ?", project).
-		Order("created_at_epoch DESC").
-		Limit(limit).
-		Find(&dbSummaries).Error
-
-	if err != nil {
-		return nil, err
-	}
-
-	return toModelSessionSummaries(dbSummaries), nil
-}
-
-// GetAllRecentSummaries retrieves recent summaries across all projects.
-func (s *SummaryStore) GetAllRecentSummaries(ctx context.Context, limit int) ([]*models.SessionSummary, error) {
-	var dbSummaries []SessionSummary
-	err := s.db.WithContext(ctx).
-		Order("created_at_epoch DESC").
-		Limit(limit).
-		Find(&dbSummaries).Error
-
-	if err != nil {
-		return nil, err
-	}
-
-	return toModelSessionSummaries(dbSummaries), nil
-}
-
-// GetAllSummaries retrieves all summaries (for vector rebuild).
-func (s *SummaryStore) GetAllSummaries(ctx context.Context) ([]*models.SessionSummary, error) {
-	var dbSummaries []SessionSummary
-	err := s.db.WithContext(ctx).
-		Order("id").
-		Find(&dbSummaries).Error
-
-	if err != nil {
-		return nil, err
-	}
-
-	return toModelSessionSummaries(dbSummaries), nil
-}
-
-// toModelSessionSummary converts a GORM SessionSummary to pkg/models.SessionSummary.
-func toModelSessionSummary(s *SessionSummary) *models.SessionSummary {
-	return &models.SessionSummary{
-		ID:              s.ID,
-		SDKSessionID:    s.SDKSessionID,
-		Project:         s.Project,
-		Request:         s.Request,
-		Investigated:    s.Investigated,
-		Learned:         s.Learned,
-		Completed:       s.Completed,
-		NextSteps:       s.NextSteps,
-		Notes:           s.Notes,
-		PromptNumber:    s.PromptNumber,
-		DiscoveryTokens: s.DiscoveryTokens,
-		CreatedAt:       s.CreatedAt,
-		CreatedAtEpoch:  s.CreatedAtEpoch,
-	}
-}
-
-// toModelSessionSummaries converts a slice of GORM SessionSummary to pkg/models.SessionSummary.
-func toModelSessionSummaries(summaries []SessionSummary) []*models.SessionSummary {
-	result := make([]*models.SessionSummary, len(summaries))
-	for i := range summaries {
-		result[i] = toModelSessionSummary(&summaries[i])
-	}
-	return result
-}
-
-// nullString converts a string to sql.NullString.
-func nullString(s string) sql.NullString {
-	if s == "" {
-		return sql.NullString{Valid: false}
-	}
-	return sql.NullString{String: s, Valid: true}
-}

internal/db/gorm/summary_store_test.go

@@ -1,278 +0,0 @@
-//go:build fts5
-
-// Package gorm provides GORM-based database operations for claude-mnemonic.
-package gorm
-
-import (
-	"context"
-	"os"
-	"path/filepath"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"gorm.io/gorm/logger"
-
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-)
-
-// testSummaryStore creates a SummaryStore with a temporary database for testing.
-func testSummaryStore(t *testing.T) (*SummaryStore, *Store, func()) {
-	t.Helper()
-
-	tmpDir, err := os.MkdirTemp("", "gorm_summary_test_*")
-	if err != nil {
-		t.Fatalf("create temp dir: %v", err)
-	}
-
-	dbPath := filepath.Join(tmpDir, "test.db")
-	cfg := Config{
-		Path:     dbPath,
-		MaxConns: 4,
-		LogLevel: logger.Silent,
-	}
-
-	store, err := NewStore(cfg)
-	if err != nil {
-		os.RemoveAll(tmpDir)
-		t.Fatalf("NewStore failed: %v", err)
-	}
-
-	summaryStore := NewSummaryStore(store)
-
-	cleanup := func() {
-		store.Close()
-		os.RemoveAll(tmpDir)
-	}
-
-	return summaryStore, store, cleanup
-}
-
-func TestSummaryStore_StoreSummary(t *testing.T) {
-	summaryStore, store, cleanup := testSummaryStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Create a session first
-	sessionStore := NewSessionStore(store)
-	_, err := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
-	require.NoError(t, err)
-
-	// Store a summary
-	summary := &models.ParsedSummary{
-		Request:      "Build a feature",
-		Investigated: "Examined the codebase",
-		Learned:      "Discovered patterns",
-		Completed:    "Implemented solution",
-		NextSteps:    "Write tests",
-		Notes:        "Additional notes",
-	}
-
-	id, epoch, err := summaryStore.StoreSummary(ctx, "claude-1", "test-project", summary, 1, 100)
-	require.NoError(t, err)
-	assert.Greater(t, id, int64(0))
-	assert.Greater(t, epoch, int64(0))
-}
-
-func TestSummaryStore_StoreSummary_AutoCreateSession(t *testing.T) {
-	summaryStore, _, cleanup := testSummaryStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Store summary without pre-creating session
-	summary := &models.ParsedSummary{
-		Request: "Test auto-create",
-	}
-
-	id, _, err := summaryStore.StoreSummary(ctx, "claude-auto", "auto-project", summary, 1, 50)
-	require.NoError(t, err)
-	assert.Greater(t, id, int64(0))
-}
-
-func TestSummaryStore_GetRecentSummaries(t *testing.T) {
-	summaryStore, _, cleanup := testSummaryStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Store multiple summaries
-	for i := 1; i <= 5; i++ {
-		summary := &models.ParsedSummary{
-			Request: "Request " + string(rune('0'+i)),
-		}
-		_, _, err := summaryStore.StoreSummary(ctx, "claude-1", "project-a", summary, i, 10)
-		require.NoError(t, err)
-	}
-
-	// Store summary for different project
-	summary := &models.ParsedSummary{Request: "Other project"}
-	_, _, err := summaryStore.StoreSummary(ctx, "claude-2", "project-b", summary, 1, 10)
-	require.NoError(t, err)
-
-	// Get recent summaries for project-a
-	summaries, err := summaryStore.GetRecentSummaries(ctx, "project-a", 10)
-	require.NoError(t, err)
-	assert.Len(t, summaries, 5)
-
-	// Verify ordering (most recent first)
-	assert.Equal(t, "project-a", summaries[0].Project)
-}
-
-func TestSummaryStore_GetAllRecentSummaries(t *testing.T) {
-	summaryStore, _, cleanup := testSummaryStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Store summaries across projects
-	_, _, err := summaryStore.StoreSummary(ctx, "claude-1", "project-a", &models.ParsedSummary{Request: "A1"}, 1, 10)
-	require.NoError(t, err)
-
-	_, _, err = summaryStore.StoreSummary(ctx, "claude-2", "project-b", &models.ParsedSummary{Request: "B1"}, 1, 10)
-	require.NoError(t, err)
-
-	_, _, err = summaryStore.StoreSummary(ctx, "claude-3", "project-c", &models.ParsedSummary{Request: "C1"}, 1, 10)
-	require.NoError(t, err)
-
-	// Get all recent summaries
-	summaries, err := summaryStore.GetAllRecentSummaries(ctx, 10)
-	require.NoError(t, err)
-	assert.Len(t, summaries, 3)
-}
-
-func TestSummaryStore_GetSummariesByIDs(t *testing.T) {
-	summaryStore, _, cleanup := testSummaryStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Store multiple summaries
-	var ids []int64
-	for i := 1; i <= 3; i++ {
-		id, _, err := summaryStore.StoreSummary(ctx, "claude-1", "project-a", &models.ParsedSummary{Request: "Test"}, i, 10)
-		require.NoError(t, err)
-		ids = append(ids, id)
-	}
-
-	// Get by IDs
-	summaries, err := summaryStore.GetSummariesByIDs(ctx, ids, "date_desc", 10)
-	require.NoError(t, err)
-	assert.Len(t, summaries, 3)
-
-	// Get with limit
-	summaries, err = summaryStore.GetSummariesByIDs(ctx, ids, "date_desc", 2)
-	require.NoError(t, err)
-	assert.Len(t, summaries, 2)
-}
-
-func TestSummaryStore_GetSummariesByIDs_EmptyInput(t *testing.T) {
-	summaryStore, _, cleanup := testSummaryStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Get with empty IDs
-	summaries, err := summaryStore.GetSummariesByIDs(ctx, []int64{}, "date_desc", 10)
-	require.NoError(t, err)
-	assert.Nil(t, summaries)
-}
-
-func TestSummaryStore_SummaryFields(t *testing.T) {
-	summaryStore, _, cleanup := testSummaryStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Store a summary with all fields
-	summary := &models.ParsedSummary{
-		Request:      "Full request",
-		Investigated: "Full investigation",
-		Learned:      "Full learning",
-		Completed:    "Full completion",
-		NextSteps:    "Full next steps",
-		Notes:        "Full notes",
-	}
-
-	id, epoch, err := summaryStore.StoreSummary(ctx, "claude-1", "test-project", summary, 5, 200)
-	require.NoError(t, err)
-
-	// Retrieve and verify all fields
-	summaries, err := summaryStore.GetSummariesByIDs(ctx, []int64{id}, "date_desc", 1)
-	require.NoError(t, err)
-	require.Len(t, summaries, 1)
-
-	s := summaries[0]
-	assert.Equal(t, id, s.ID)
-	assert.Equal(t, "claude-1", s.SDKSessionID)
-	assert.Equal(t, "test-project", s.Project)
-	assert.True(t, s.Request.Valid)
-	assert.Equal(t, "Full request", s.Request.String)
-	assert.True(t, s.Investigated.Valid)
-	assert.Equal(t, "Full investigation", s.Investigated.String)
-	assert.True(t, s.Learned.Valid)
-	assert.Equal(t, "Full learning", s.Learned.String)
-	assert.True(t, s.Completed.Valid)
-	assert.Equal(t, "Full completion", s.Completed.String)
-	assert.True(t, s.NextSteps.Valid)
-	assert.Equal(t, "Full next steps", s.NextSteps.String)
-	assert.True(t, s.Notes.Valid)
-	assert.Equal(t, "Full notes", s.Notes.String)
-	assert.True(t, s.PromptNumber.Valid)
-	assert.Equal(t, int64(5), s.PromptNumber.Int64)
-	assert.Equal(t, int64(200), s.DiscoveryTokens)
-	assert.NotEmpty(t, s.CreatedAt)
-	assert.Equal(t, epoch, s.CreatedAtEpoch)
-}
-
-func TestSummaryStore_EmptySummary(t *testing.T) {
-	summaryStore, _, cleanup := testSummaryStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Store a summary with empty fields
-	summary := &models.ParsedSummary{}
-
-	id, _, err := summaryStore.StoreSummary(ctx, "claude-1", "test-project", summary, 0, 0)
-	require.NoError(t, err)
-
-	// Retrieve and verify NULL fields
-	summaries, err := summaryStore.GetSummariesByIDs(ctx, []int64{id}, "date_desc", 1)
-	require.NoError(t, err)
-	require.Len(t, summaries, 1)
-
-	s := summaries[0]
-	assert.False(t, s.Request.Valid)
-	assert.False(t, s.Investigated.Valid)
-	assert.False(t, s.Learned.Valid)
-	assert.False(t, s.Completed.Valid)
-	assert.False(t, s.NextSteps.Valid)
-	assert.False(t, s.Notes.Valid)
-	assert.False(t, s.PromptNumber.Valid)
-	assert.Equal(t, int64(0), s.DiscoveryTokens)
-}
-
-func TestSummaryStore_GetAllSummaries(t *testing.T) {
-	summaryStore, _, cleanup := testSummaryStore(t)
-	defer cleanup()
-
-	ctx := context.Background()
-
-	// Store multiple summaries
-	for i := 1; i <= 5; i++ {
-		_, _, err := summaryStore.StoreSummary(ctx, "claude-1", "project-a", &models.ParsedSummary{Request: "Test"}, i, 10)
-		require.NoError(t, err)
-	}
-
-	// Get all summaries
-	summaries, err := summaryStore.GetAllSummaries(ctx)
-	require.NoError(t, err)
-	assert.Len(t, summaries, 5)
-
-	// Verify ordering by ID
-	for i := 0; i < len(summaries)-1; i++ {
-		assert.Less(t, summaries[i].ID, summaries[i+1].ID)
-	}
-}

internal/db/interface.go

@@ -1,71 +0,0 @@
-// Package db defines database interfaces for the claude-mnemonic stores.
-package db
-
-import (
-	"context"
-
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-)
-
-// ObservationReader defines read operations for observations.
-type ObservationReader interface {
-	GetObservationByID(ctx context.Context, id int64) (*models.Observation, error)
-	GetObservationsByIDs(ctx context.Context, ids []int64, orderBy string, limit int) ([]*models.Observation, error)
-	GetRecentObservations(ctx context.Context, project string, limit int) ([]*models.Observation, error)
-	GetActiveObservations(ctx context.Context, project string, limit int) ([]*models.Observation, error)
-	GetAllRecentObservations(ctx context.Context, limit int) ([]*models.Observation, error)
-	GetAllObservations(ctx context.Context) ([]*models.Observation, error)
-	SearchObservationsFTS(ctx context.Context, query, project string, limit int) ([]*models.Observation, error)
-	GetObservationCount(ctx context.Context, project string) (int, error)
-}
-
-// ObservationWriter defines write operations for observations.
-type ObservationWriter interface {
-	StoreObservation(ctx context.Context, sdkSessionID, project string, obs *models.ParsedObservation, promptNumber int, discoveryTokens int64) (int64, int64, error)
-	DeleteObservations(ctx context.Context, ids []int64) (int64, error)
-}
-
-// ObservationStore combines read and write operations for observations.
-type ObservationStore interface {
-	ObservationReader
-	ObservationWriter
-}
-
-// SummaryReader defines read operations for summaries.
-type SummaryReader interface {
-	GetSummariesByIDs(ctx context.Context, ids []int64, orderBy string, limit int) ([]*models.SessionSummary, error)
-	GetRecentSummaries(ctx context.Context, project string, limit int) ([]*models.SessionSummary, error)
-	GetAllRecentSummaries(ctx context.Context, limit int) ([]*models.SessionSummary, error)
-	GetAllSummaries(ctx context.Context) ([]*models.SessionSummary, error)
-}
-
-// SummaryWriter defines write operations for summaries.
-type SummaryWriter interface {
-	StoreSummary(ctx context.Context, sdkSessionID, project string, summary *models.ParsedSummary, promptNumber int, discoveryTokens int64) (int64, int64, error)
-}
-
-// SummaryStore combines read and write operations for summaries.
-type SummaryStore interface {
-	SummaryReader
-	SummaryWriter
-}
-
-// PromptReader defines read operations for prompts.
-type PromptReader interface {
-	GetPromptsByIDs(ctx context.Context, ids []int64, orderBy string, limit int) ([]*models.UserPromptWithSession, error)
-	GetAllRecentUserPrompts(ctx context.Context, limit int) ([]*models.UserPromptWithSession, error)
-	GetAllPrompts(ctx context.Context) ([]*models.UserPromptWithSession, error)
-	GetRecentUserPromptsByProject(ctx context.Context, project string, limit int) ([]*models.UserPromptWithSession, error)
-	FindRecentPromptByText(ctx context.Context, claudeSessionID, promptText string, withinSeconds int) (int64, int, bool)
-}
-
-// PromptWriter defines write operations for prompts.
-type PromptWriter interface {
-	SaveUserPromptWithMatches(ctx context.Context, claudeSessionID string, promptNumber int, promptText string, matchedObservations int) (int64, error)
-}
-
-// PromptStore combines read and write operations for prompts.
-type PromptStore interface {
-	PromptReader
-	PromptWriter
-}

internal/db/sqlite/helpers.go

@@ -0,0 +1,160 @@
+// Package sqlite provides SQLite database operations for claude-mnemonic.
+package sqlite
+
+import (
+	"context"
+	"database/sql"
+	"net/http"
+	"strconv"
+	"time"
+
+	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
+)
+
+// EnsureSessionExists creates a session if it doesn't exist.
+// This is shared between ObservationStore and SummaryStore to avoid duplication.
+func EnsureSessionExists(ctx context.Context, store *Store, sdkSessionID, project string) error {
+	const checkQuery = `SELECT id FROM sdk_sessions WHERE sdk_session_id = ?`
+	var id int64
+	err := store.QueryRowContext(ctx, checkQuery, sdkSessionID).Scan(&id)
+	if err == nil {
+		return nil // Session exists
+	}
+	if err != sql.ErrNoRows {
+		return err
+	}
+
+	// Auto-create session
+	now := time.Now()
+	const insertQuery = `
+		INSERT INTO sdk_sessions
+		(claude_session_id, sdk_session_id, project, started_at, started_at_epoch, status)
+		VALUES (?, ?, ?, ?, ?, 'active')
+	`
+	_, err = store.ExecContext(ctx, insertQuery,
+		sdkSessionID, sdkSessionID, project,
+		now.Format(time.RFC3339), now.UnixMilli(),
+	)
+	return err
+}
+
+// nullString converts a string to sql.NullString.
+func nullString(s string) sql.NullString {
+	return sql.NullString{String: s, Valid: s != ""}
+}
+
+// nullInt converts an int to sql.NullInt64.
+func nullInt(i int) sql.NullInt64 {
+	return sql.NullInt64{Int64: int64(i), Valid: i > 0}
+}
+
+// repeatPlaceholders generates n comma-prefixed placeholders for SQL IN clauses.
+// e.g., repeatPlaceholders(2) returns ", ?, ?"
+func repeatPlaceholders(n int) string {
+	if n <= 0 {
+		return ""
+	}
+	result := ""
+	for i := 0; i < n; i++ {
+		result += ", ?"
+	}
+	return result
+}
+
+// int64SliceToInterface converts []int64 to []interface{} for SQL queries.
+func int64SliceToInterface(ids []int64) []interface{} {
+	args := make([]interface{}, len(ids))
+	for i, id := range ids {
+		args[i] = id
+	}
+	return args
+}
+
+// ParseLimitParam parses a limit query parameter with a default value.
+func ParseLimitParam(r *http.Request, defaultLimit int) int {
+	if l := r.URL.Query().Get("limit"); l != "" {
+		if parsed, err := strconv.Atoi(l); err == nil && parsed > 0 {
+			return parsed
+		}
+	}
+	return defaultLimit
+}
+
+// scanSummary scans a single summary from a row scanner.
+func scanSummary(scanner interface{ Scan(...interface{}) error }) (*models.SessionSummary, error) {
+	var summary models.SessionSummary
+	if err := scanner.Scan(
+		&summary.ID, &summary.SDKSessionID, &summary.Project,
+		&summary.Request, &summary.Investigated, &summary.Learned, &summary.Completed,
+		&summary.NextSteps, &summary.Notes, &summary.PromptNumber, &summary.DiscoveryTokens,
+		&summary.CreatedAt, &summary.CreatedAtEpoch,
+	); err != nil {
+		return nil, err
+	}
+	return &summary, nil
+}
+
+// scanSummaryRows scans multiple summaries from rows.
+func scanSummaryRows(rows *sql.Rows) ([]*models.SessionSummary, error) {
+	var summaries []*models.SessionSummary
+	for rows.Next() {
+		summary, err := scanSummary(rows)
+		if err != nil {
+			return nil, err
+		}
+		summaries = append(summaries, summary)
+	}
+	return summaries, rows.Err()
+}
+
+// scanPromptWithSession scans a single prompt with session info from a row scanner.
+func scanPromptWithSession(scanner interface{ Scan(...interface{}) error }) (*models.UserPromptWithSession, error) {
+	var prompt models.UserPromptWithSession
+	if err := scanner.Scan(
+		&prompt.ID, &prompt.ClaudeSessionID, &prompt.PromptNumber, &prompt.PromptText,
+		&prompt.MatchedObservations, &prompt.CreatedAt, &prompt.CreatedAtEpoch,
+		&prompt.Project, &prompt.SDKSessionID,
+	); err != nil {
+		return nil, err
+	}
+	return &prompt, nil
+}
+
+// scanPromptWithSessionRows scans multiple prompts with session info from rows.
+func scanPromptWithSessionRows(rows *sql.Rows) ([]*models.UserPromptWithSession, error) {
+	var prompts []*models.UserPromptWithSession
+	for rows.Next() {
+		prompt, err := scanPromptWithSession(rows)
+		if err != nil {
+			return nil, err
+		}
+		prompts = append(prompts, prompt)
+	}
+	return prompts, rows.Err()
+}
+
+// BuildGetByIDsQuery builds a query for fetching records by IDs with optional ordering and limit.
+// Returns the query string and args slice.
+func BuildGetByIDsQuery(baseQuery string, ids []int64, orderBy string, limit int) (string, []interface{}) {
+	// Build query with placeholders
+	// #nosec G202 -- query uses parameterized placeholders, not user input
+	query := baseQuery + ` WHERE id IN (?` + repeatPlaceholders(len(ids)-1) + `)
+		ORDER BY created_at_epoch `
+
+	if orderBy == "date_asc" {
+		query += "ASC"
+	} else {
+		query += "DESC"
+	}
+
+	if limit > 0 {
+		query += " LIMIT ?"
+	}
+
+	args := int64SliceToInterface(ids)
+	if limit > 0 {
+		args = append(args, limit)
+	}
+
+	return query, args
+}

internal/db/sqlite/helpers_test.go

@@ -0,0 +1,254 @@
+package sqlite
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestNullString(t *testing.T) {
+	tests := []struct {
+		name     string
+		input    string
+		expected string
+		valid    bool
+	}{
+		{"empty_string", "", "", false},
+		{"non_empty_string", "hello", "hello", true},
+		{"whitespace", " ", " ", true},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := nullString(tt.input)
+			assert.Equal(t, tt.expected, result.String)
+			assert.Equal(t, tt.valid, result.Valid)
+		})
+	}
+}
+
+func TestNullInt(t *testing.T) {
+	tests := []struct {
+		name     string
+		input    int
+		expected int64
+		valid    bool
+	}{
+		{"zero", 0, 0, false},
+		{"positive", 42, 42, true},
+		{"negative", -1, -1, false},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := nullInt(tt.input)
+			assert.Equal(t, tt.expected, result.Int64)
+			assert.Equal(t, tt.valid, result.Valid)
+		})
+	}
+}
+
+func TestRepeatPlaceholders(t *testing.T) {
+	tests := []struct {
+		name     string
+		n        int
+		expected string
+	}{
+		{"zero", 0, ""},
+		{"negative", -1, ""},
+		{"one", 1, ", ?"},
+		{"two", 2, ", ?, ?"},
+		{"three", 3, ", ?, ?, ?"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := repeatPlaceholders(tt.n)
+			assert.Equal(t, tt.expected, result)
+		})
+	}
+}
+
+func TestInt64SliceToInterface(t *testing.T) {
+	tests := []struct {
+		name     string
+		input    []int64
+		expected []interface{}
+	}{
+		{"empty", []int64{}, []interface{}{}},
+		{"single", []int64{42}, []interface{}{int64(42)}},
+		{"multiple", []int64{1, 2, 3}, []interface{}{int64(1), int64(2), int64(3)}},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := int64SliceToInterface(tt.input)
+			assert.Equal(t, tt.expected, result)
+		})
+	}
+}
+
+func TestParseLimitParam(t *testing.T) {
+	tests := []struct {
+		name         string
+		query        string
+		defaultLimit int
+		expected     int
+	}{
+		{"no_param_uses_default", "", 10, 10},
+		{"valid_limit", "limit=20", 10, 20},
+		{"invalid_limit_uses_default", "limit=abc", 10, 10},
+		{"zero_limit_uses_default", "limit=0", 10, 10},
+		{"negative_limit_uses_default", "limit=-5", 10, 10},
+		{"large_limit", "limit=1000", 10, 1000},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			req := httptest.NewRequest("GET", "/?"+tt.query, nil)
+			result := ParseLimitParam(req, tt.defaultLimit)
+			assert.Equal(t, tt.expected, result)
+		})
+	}
+}
+
+func TestScanSummary(t *testing.T) {
+	db, _, cleanup := testDB(t)
+	defer cleanup()
+	createBaseTables(t, db)
+	seedSession(t, db, "claude-123", "sdk-123", "test-project")
+
+	// Insert a test summary
+	_, err := db.Exec(`
+		INSERT INTO session_summaries (sdk_session_id, project, request, investigated, learned, completed, next_steps, notes, prompt_number, discovery_tokens, created_at, created_at_epoch)
+		VALUES ('sdk-123', 'test-project', 'test request', 'test investigated', 'test learned', 'test completed', 'test next steps', 'test notes', 1, 100, '2025-01-01T00:00:00Z', 1704067200000)
+	`)
+	require.NoError(t, err)
+
+	// Query and scan
+	row := db.QueryRow(`
+		SELECT id, sdk_session_id, project, request, investigated, learned, completed, next_steps, notes, prompt_number, discovery_tokens, created_at, created_at_epoch
+		FROM session_summaries WHERE sdk_session_id = ?
+	`, "sdk-123")
+
+	summary, err := scanSummary(row)
+	require.NoError(t, err)
+	assert.NotNil(t, summary)
+	assert.Equal(t, "sdk-123", summary.SDKSessionID)
+	assert.Equal(t, "test-project", summary.Project)
+	assert.Equal(t, "test request", summary.Request.String)
+	assert.Equal(t, "test investigated", summary.Investigated.String)
+	assert.Equal(t, "test learned", summary.Learned.String)
+	assert.Equal(t, "test completed", summary.Completed.String)
+	assert.Equal(t, "test next steps", summary.NextSteps.String)
+	assert.Equal(t, "test notes", summary.Notes.String)
+}
+
+func TestScanSummaryRows(t *testing.T) {
+	db, _, cleanup := testDB(t)
+	defer cleanup()
+	createBaseTables(t, db)
+	seedSession(t, db, "claude-123", "sdk-123", "test-project")
+
+	// Insert multiple summaries
+	_, err := db.Exec(`
+		INSERT INTO session_summaries (sdk_session_id, project, request, investigated, learned, completed, next_steps, notes, prompt_number, discovery_tokens, created_at, created_at_epoch)
+		VALUES
+			('sdk-123', 'test-project', 'request 1', '', '', '', '', '', 1, 0, '2025-01-01T00:00:00Z', 1704067200000),
+			('sdk-123', 'test-project', 'request 2', '', '', '', '', '', 2, 0, '2025-01-02T00:00:00Z', 1704153600000)
+	`)
+	require.NoError(t, err)
+
+	rows, err := db.Query(`
+		SELECT id, sdk_session_id, project, request, investigated, learned, completed, next_steps, notes, prompt_number, discovery_tokens, created_at, created_at_epoch
+		FROM session_summaries WHERE sdk_session_id = ? ORDER BY id
+	`, "sdk-123")
+	require.NoError(t, err)
+	defer rows.Close()
+
+	summaries, err := scanSummaryRows(rows)
+	require.NoError(t, err)
+	assert.Len(t, summaries, 2)
+	assert.Equal(t, "request 1", summaries[0].Request.String)
+	assert.Equal(t, "request 2", summaries[1].Request.String)
+}
+
+func TestScanPromptWithSession(t *testing.T) {
+	db, _, cleanup := testDB(t)
+	defer cleanup()
+	createBaseTables(t, db)
+	seedSession(t, db, "claude-123", "sdk-123", "test-project")
+
+	// Insert a test prompt
+	_, err := db.Exec(`
+		INSERT INTO user_prompts (claude_session_id, prompt_number, prompt_text, matched_observations, created_at, created_at_epoch)
+		VALUES ('claude-123', 1, 'test prompt', 5, '2025-01-01T00:00:00Z', 1704067200000)
+	`)
+	require.NoError(t, err)
+
+	// Query with session join
+	row := db.QueryRow(`
+		SELECT p.id, p.claude_session_id, p.prompt_number, p.prompt_text, p.matched_observations, p.created_at, p.created_at_epoch, s.project, s.sdk_session_id
+		FROM user_prompts p
+		JOIN sdk_sessions s ON p.claude_session_id = s.claude_session_id
+		WHERE p.claude_session_id = ?
+	`, "claude-123")
+
+	prompt, err := scanPromptWithSession(row)
+	require.NoError(t, err)
+	assert.NotNil(t, prompt)
+	assert.Equal(t, "claude-123", prompt.ClaudeSessionID)
+	assert.Equal(t, 1, prompt.PromptNumber)
+	assert.Equal(t, "test prompt", prompt.PromptText)
+	assert.Equal(t, 5, prompt.MatchedObservations)
+	assert.Equal(t, "test-project", prompt.Project)
+	assert.Equal(t, "sdk-123", prompt.SDKSessionID)
+}
+
+func TestScanPromptWithSessionRows(t *testing.T) {
+	db, _, cleanup := testDB(t)
+	defer cleanup()
+	createBaseTables(t, db)
+	seedSession(t, db, "claude-123", "sdk-123", "test-project")
+
+	// Insert multiple prompts
+	_, err := db.Exec(`
+		INSERT INTO user_prompts (claude_session_id, prompt_number, prompt_text, matched_observations, created_at, created_at_epoch)
+		VALUES
+			('claude-123', 1, 'prompt one', 3, '2025-01-01T00:00:00Z', 1704067200000),
+			('claude-123', 2, 'prompt two', 5, '2025-01-02T00:00:00Z', 1704153600000)
+	`)
+	require.NoError(t, err)
+
+	rows, err := db.Query(`
+		SELECT p.id, p.claude_session_id, p.prompt_number, p.prompt_text, p.matched_observations, p.created_at, p.created_at_epoch, s.project, s.sdk_session_id
+		FROM user_prompts p
+		JOIN sdk_sessions s ON p.claude_session_id = s.claude_session_id
+		WHERE p.claude_session_id = ? ORDER BY p.id
+	`, "claude-123")
+	require.NoError(t, err)
+	defer rows.Close()
+
+	prompts, err := scanPromptWithSessionRows(rows)
+	require.NoError(t, err)
+	assert.Len(t, prompts, 2)
+	assert.Equal(t, "prompt one", prompts[0].PromptText)
+	assert.Equal(t, "prompt two", prompts[1].PromptText)
+}
+
+func TestParseLimitParam_HTTPRequest(t *testing.T) {
+	// Test with an actual HTTP request
+	handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		limit := ParseLimitParam(r, 25)
+		if limit != 50 {
+			t.Errorf("Expected limit 50, got %d", limit)
+		}
+	})
+
+	req := httptest.NewRequest("GET", "http://example.com/api?limit=50", nil)
+	w := httptest.NewRecorder()
+	handler.ServeHTTP(w, req)
+}

internal/db/sqlite/migrations.go

@@ -0,0 +1,376 @@
+// Package sqlite provides SQLite database operations for claude-mnemonic.
+package sqlite
+
+import (
+	"database/sql"
+	"fmt"
+	"time"
+)
+
+// Migration represents a database schema migration.
+type Migration struct {
+	Version int
+	Name    string
+	SQL     string
+}
+
+// Migrations is the list of all database migrations in order.
+var Migrations = []Migration{
+	{
+		Version: 4,
+		Name:    "sdk_agent_architecture",
+		SQL: `
+			-- SDK Sessions (main session tracking)
+			CREATE TABLE IF NOT EXISTS sdk_sessions (
+				id INTEGER PRIMARY KEY AUTOINCREMENT,
+				claude_session_id TEXT UNIQUE NOT NULL,
+				sdk_session_id TEXT UNIQUE,
+				project TEXT NOT NULL,
+				user_prompt TEXT,
+				started_at TEXT NOT NULL,
+				started_at_epoch INTEGER NOT NULL,
+				completed_at TEXT,
+				completed_at_epoch INTEGER,
+				status TEXT CHECK(status IN ('active', 'completed', 'failed')) NOT NULL DEFAULT 'active'
+			);
+
+			CREATE INDEX IF NOT EXISTS idx_sdk_sessions_claude_id ON sdk_sessions(claude_session_id);
+			CREATE INDEX IF NOT EXISTS idx_sdk_sessions_sdk_id ON sdk_sessions(sdk_session_id);
+			CREATE INDEX IF NOT EXISTS idx_sdk_sessions_project ON sdk_sessions(project);
+			CREATE INDEX IF NOT EXISTS idx_sdk_sessions_status ON sdk_sessions(status);
+			CREATE INDEX IF NOT EXISTS idx_sdk_sessions_started ON sdk_sessions(started_at_epoch DESC);
+
+			-- Observations (extracted learnings)
+			CREATE TABLE IF NOT EXISTS observations (
+				id INTEGER PRIMARY KEY AUTOINCREMENT,
+				sdk_session_id TEXT NOT NULL,
+				project TEXT NOT NULL,
+				text TEXT,
+				type TEXT NOT NULL CHECK(type IN ('decision', 'bugfix', 'feature', 'refactor', 'discovery', 'change')),
+				created_at TEXT NOT NULL,
+				created_at_epoch INTEGER NOT NULL,
+				FOREIGN KEY(sdk_session_id) REFERENCES sdk_sessions(sdk_session_id) ON DELETE CASCADE
+			);
+
+			CREATE INDEX IF NOT EXISTS idx_observations_sdk_session ON observations(sdk_session_id);
+			CREATE INDEX IF NOT EXISTS idx_observations_project ON observations(project);
+			CREATE INDEX IF NOT EXISTS idx_observations_type ON observations(type);
+			CREATE INDEX IF NOT EXISTS idx_observations_created ON observations(created_at_epoch DESC);
+
+			-- Session Summaries
+			CREATE TABLE IF NOT EXISTS session_summaries (
+				id INTEGER PRIMARY KEY AUTOINCREMENT,
+				sdk_session_id TEXT NOT NULL,
+				project TEXT NOT NULL,
+				request TEXT,
+				investigated TEXT,
+				learned TEXT,
+				completed TEXT,
+				next_steps TEXT,
+				files_read TEXT,
+				files_edited TEXT,
+				notes TEXT,
+				created_at TEXT NOT NULL,
+				created_at_epoch INTEGER NOT NULL,
+				FOREIGN KEY(sdk_session_id) REFERENCES sdk_sessions(sdk_session_id) ON DELETE CASCADE
+			);
+
+			CREATE INDEX IF NOT EXISTS idx_session_summaries_sdk_session ON session_summaries(sdk_session_id);
+			CREATE INDEX IF NOT EXISTS idx_session_summaries_project ON session_summaries(project);
+			CREATE INDEX IF NOT EXISTS idx_session_summaries_created ON session_summaries(created_at_epoch DESC);
+		`,
+	},
+	{
+		Version: 5,
+		Name:    "worker_port_column",
+		SQL:     `ALTER TABLE sdk_sessions ADD COLUMN worker_port INTEGER;`,
+	},
+	{
+		Version: 6,
+		Name:    "prompt_tracking_columns",
+		SQL: `
+			ALTER TABLE sdk_sessions ADD COLUMN prompt_counter INTEGER DEFAULT 0;
+			ALTER TABLE observations ADD COLUMN prompt_number INTEGER;
+			ALTER TABLE session_summaries ADD COLUMN prompt_number INTEGER;
+		`,
+	},
+	{
+		Version: 8,
+		Name:    "observation_hierarchical_fields",
+		SQL: `
+			ALTER TABLE observations ADD COLUMN title TEXT;
+			ALTER TABLE observations ADD COLUMN subtitle TEXT;
+			ALTER TABLE observations ADD COLUMN facts TEXT;
+			ALTER TABLE observations ADD COLUMN narrative TEXT;
+			ALTER TABLE observations ADD COLUMN concepts TEXT;
+			ALTER TABLE observations ADD COLUMN files_read TEXT;
+			ALTER TABLE observations ADD COLUMN files_modified TEXT;
+		`,
+	},
+	{
+		Version: 10,
+		Name:    "user_prompts_table",
+		SQL: `
+			-- User prompts table
+			CREATE TABLE IF NOT EXISTS user_prompts (
+				id INTEGER PRIMARY KEY AUTOINCREMENT,
+				claude_session_id TEXT NOT NULL,
+				prompt_number INTEGER NOT NULL,
+				prompt_text TEXT NOT NULL,
+				created_at TEXT NOT NULL,
+				created_at_epoch INTEGER NOT NULL,
+				FOREIGN KEY(claude_session_id) REFERENCES sdk_sessions(claude_session_id) ON DELETE CASCADE
+			);
+
+			CREATE INDEX IF NOT EXISTS idx_user_prompts_claude_session ON user_prompts(claude_session_id);
+			CREATE INDEX IF NOT EXISTS idx_user_prompts_created ON user_prompts(created_at_epoch DESC);
+			CREATE INDEX IF NOT EXISTS idx_user_prompts_prompt_number ON user_prompts(prompt_number);
+			CREATE INDEX IF NOT EXISTS idx_user_prompts_lookup ON user_prompts(claude_session_id, prompt_number);
+
+			-- FTS5 virtual table for user prompts
+			CREATE VIRTUAL TABLE IF NOT EXISTS user_prompts_fts USING fts5(
+				prompt_text,
+				content='user_prompts',
+				content_rowid='id'
+			);
+
+			-- Triggers for FTS5 sync
+			CREATE TRIGGER IF NOT EXISTS user_prompts_ai AFTER INSERT ON user_prompts BEGIN
+				INSERT INTO user_prompts_fts(rowid, prompt_text)
+				VALUES (new.id, new.prompt_text);
+			END;
+
+			CREATE TRIGGER IF NOT EXISTS user_prompts_ad AFTER DELETE ON user_prompts BEGIN
+				INSERT INTO user_prompts_fts(user_prompts_fts, rowid, prompt_text)
+				VALUES('delete', old.id, old.prompt_text);
+			END;
+
+			CREATE TRIGGER IF NOT EXISTS user_prompts_au AFTER UPDATE ON user_prompts BEGIN
+				INSERT INTO user_prompts_fts(user_prompts_fts, rowid, prompt_text)
+				VALUES('delete', old.id, old.prompt_text);
+				INSERT INTO user_prompts_fts(rowid, prompt_text)
+				VALUES (new.id, new.prompt_text);
+			END;
+		`,
+	},
+	{
+		Version: 11,
+		Name:    "discovery_tokens_column",
+		SQL: `
+			ALTER TABLE observations ADD COLUMN discovery_tokens INTEGER DEFAULT 0;
+			ALTER TABLE session_summaries ADD COLUMN discovery_tokens INTEGER DEFAULT 0;
+		`,
+	},
+	{
+		Version: 12,
+		Name:    "observations_fts",
+		SQL: `
+			-- FTS5 virtual table for observations
+			CREATE VIRTUAL TABLE IF NOT EXISTS observations_fts USING fts5(
+				title, subtitle, narrative,
+				content='observations',
+				content_rowid='id'
+			);
+
+			-- Triggers for FTS5 sync
+			CREATE TRIGGER IF NOT EXISTS observations_ai AFTER INSERT ON observations BEGIN
+				INSERT INTO observations_fts(rowid, title, subtitle, narrative)
+				VALUES (new.id, new.title, new.subtitle, new.narrative);
+			END;
+
+			CREATE TRIGGER IF NOT EXISTS observations_ad AFTER DELETE ON observations BEGIN
+				INSERT INTO observations_fts(observations_fts, rowid, title, subtitle, narrative)
+				VALUES('delete', old.id, old.title, old.subtitle, old.narrative);
+			END;
+
+			CREATE TRIGGER IF NOT EXISTS observations_au AFTER UPDATE ON observations BEGIN
+				INSERT INTO observations_fts(observations_fts, rowid, title, subtitle, narrative)
+				VALUES('delete', old.id, old.title, old.subtitle, old.narrative);
+				INSERT INTO observations_fts(rowid, title, subtitle, narrative)
+				VALUES (new.id, new.title, new.subtitle, new.narrative);
+			END;
+		`,
+	},
+	{
+		Version: 13,
+		Name:    "session_summaries_fts",
+		SQL: `
+			-- FTS5 virtual table for session summaries
+			CREATE VIRTUAL TABLE IF NOT EXISTS session_summaries_fts USING fts5(
+				request, investigated, learned, completed, next_steps, notes,
+				content='session_summaries',
+				content_rowid='id'
+			);
+
+			-- Triggers for FTS5 sync
+			CREATE TRIGGER IF NOT EXISTS session_summaries_ai AFTER INSERT ON session_summaries BEGIN
+				INSERT INTO session_summaries_fts(rowid, request, investigated, learned, completed, next_steps, notes)
+				VALUES (new.id, new.request, new.investigated, new.learned, new.completed, new.next_steps, new.notes);
+			END;
+
+			CREATE TRIGGER IF NOT EXISTS session_summaries_ad AFTER DELETE ON session_summaries BEGIN
+				INSERT INTO session_summaries_fts(session_summaries_fts, rowid, request, investigated, learned, completed, next_steps, notes)
+				VALUES('delete', old.id, old.request, old.investigated, old.learned, old.completed, old.next_steps, old.notes);
+			END;
+
+			CREATE TRIGGER IF NOT EXISTS session_summaries_au AFTER UPDATE ON session_summaries BEGIN
+				INSERT INTO session_summaries_fts(session_summaries_fts, rowid, request, investigated, learned, completed, next_steps, notes)
+				VALUES('delete', old.id, old.request, old.investigated, old.learned, old.completed, old.next_steps, old.notes);
+				INSERT INTO session_summaries_fts(rowid, request, investigated, learned, completed, next_steps, notes)
+				VALUES (new.id, new.request, new.investigated, new.learned, new.completed, new.next_steps, new.notes);
+			END;
+		`,
+	},
+	{
+		Version: 14,
+		Name:    "observation_scope_column",
+		SQL: `
+			-- Add scope column for project isolation
+			-- 'project' = only visible within same project (default)
+			-- 'global' = visible across all projects (best practices, patterns)
+			ALTER TABLE observations ADD COLUMN scope TEXT DEFAULT 'project' CHECK(scope IN ('project', 'global'));
+
+			-- Index for efficient scope-based queries
+			CREATE INDEX IF NOT EXISTS idx_observations_scope ON observations(scope);
+			CREATE INDEX IF NOT EXISTS idx_observations_project_scope ON observations(project, scope);
+		`,
+	},
+	{
+		Version: 15,
+		Name:    "observation_file_mtimes",
+		SQL: `
+			-- Store file modification times at observation creation
+			-- JSON object: {"path": mtime_epoch_ms, ...}
+			-- Used to detect staleness when files change
+			ALTER TABLE observations ADD COLUMN file_mtimes TEXT;
+		`,
+	},
+	{
+		Version: 16,
+		Name:    "prompt_matched_observations",
+		SQL: `
+			-- Track how many observations were found relevant for each prompt
+			-- Displayed in dashboard timeline
+			ALTER TABLE user_prompts ADD COLUMN matched_observations INTEGER DEFAULT 0;
+		`,
+	},
+	{
+		Version: 17,
+		Name:    "sqlite_vec_vectors",
+		SQL: `
+			-- Vector embeddings table using sqlite-vec
+			-- Each document (narrative, fact, summary field, prompt) gets one vector
+			-- Uses all-MiniLM-L6-v2 embeddings (384 dimensions)
+			CREATE VIRTUAL TABLE IF NOT EXISTS vectors USING vec0(
+				doc_id TEXT PRIMARY KEY,
+				embedding float[384],
+				sqlite_id INTEGER,
+				doc_type TEXT,
+				field_type TEXT,
+				project TEXT,
+				scope TEXT
+			);
+		`,
+	},
+	{
+		Version: 18,
+		Name:    "user_prompts_unique_constraint",
+		SQL: `
+			-- Add unique constraint to prevent duplicate prompts
+			-- This fixes a bug where the user-prompt hook could fire multiple times
+			-- creating duplicate prompt records with incrementing numbers
+			CREATE UNIQUE INDEX IF NOT EXISTS idx_user_prompts_session_number_unique
+			ON user_prompts(claude_session_id, prompt_number);
+		`,
+	},
+}
+
+// MigrationManager handles database schema migrations.
+type MigrationManager struct {
+	db *sql.DB
+}
+
+// NewMigrationManager creates a new migration manager.
+func NewMigrationManager(db *sql.DB) *MigrationManager {
+	return &MigrationManager{db: db}
+}
+
+// EnsureSchemaVersionsTable creates the schema_versions table if it doesn't exist.
+func (m *MigrationManager) EnsureSchemaVersionsTable() error {
+	_, err := m.db.Exec(`
+		CREATE TABLE IF NOT EXISTS schema_versions (
+			id INTEGER PRIMARY KEY,
+			version INTEGER UNIQUE NOT NULL,
+			applied_at TEXT NOT NULL
+		)
+	`)
+	return err
+}
+
+// GetAppliedVersions returns all applied migration versions.
+func (m *MigrationManager) GetAppliedVersions() (map[int]bool, error) {
+	rows, err := m.db.Query("SELECT version FROM schema_versions ORDER BY version")
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	versions := make(map[int]bool)
+	for rows.Next() {
+		var version int
+		if err := rows.Scan(&version); err != nil {
+			return nil, err
+		}
+		versions[version] = true
+	}
+	return versions, rows.Err()
+}
+
+// ApplyMigration applies a single migration.
+func (m *MigrationManager) ApplyMigration(migration Migration) error {
+	tx, err := m.db.Begin()
+	if err != nil {
+		return fmt.Errorf("begin transaction: %w", err)
+	}
+	defer tx.Rollback()
+
+	// Execute migration SQL
+	if _, err := tx.Exec(migration.SQL); err != nil {
+		return fmt.Errorf("execute migration %d (%s): %w", migration.Version, migration.Name, err)
+	}
+
+	// Record migration
+	_, err = tx.Exec(
+		"INSERT INTO schema_versions (version, applied_at) VALUES (?, ?)",
+		migration.Version, time.Now().Format(time.RFC3339),
+	)
+	if err != nil {
+		return fmt.Errorf("record migration %d: %w", migration.Version, err)
+	}
+
+	return tx.Commit()
+}
+
+// RunMigrations applies all pending migrations.
+func (m *MigrationManager) RunMigrations() error {
+	if err := m.EnsureSchemaVersionsTable(); err != nil {
+		return fmt.Errorf("ensure schema_versions table: %w", err)
+	}
+
+	applied, err := m.GetAppliedVersions()
+	if err != nil {
+		return fmt.Errorf("get applied versions: %w", err)
+	}
+
+	for _, migration := range Migrations {
+		if applied[migration.Version] {
+			continue
+		}
+
+		if err := m.ApplyMigration(migration); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}

internal/db/sqlite/migrations_test.go

@@ -0,0 +1,196 @@
+package sqlite
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestNewMigrationManager(t *testing.T) {
+	db, _, cleanup := testDB(t)
+	defer cleanup()
+
+	manager := NewMigrationManager(db)
+	require.NotNil(t, manager)
+	assert.Equal(t, db, manager.db)
+}
+
+func TestMigrationManager_EnsureSchemaVersionsTable(t *testing.T) {
+	db, _, cleanup := testDB(t)
+	defer cleanup()
+
+	manager := NewMigrationManager(db)
+
+	// Should create table without error
+	err := manager.EnsureSchemaVersionsTable()
+	require.NoError(t, err)
+
+	// Table should exist
+	var count int
+	err = db.QueryRow("SELECT COUNT(*) FROM schema_versions").Scan(&count)
+	require.NoError(t, err)
+	assert.Equal(t, 0, count) // Empty table
+
+	// Calling again should not error (IF NOT EXISTS)
+	err = manager.EnsureSchemaVersionsTable()
+	require.NoError(t, err)
+}
+
+func TestMigrationManager_GetAppliedVersions_Empty(t *testing.T) {
+	db, _, cleanup := testDB(t)
+	defer cleanup()
+
+	manager := NewMigrationManager(db)
+	err := manager.EnsureSchemaVersionsTable()
+	require.NoError(t, err)
+
+	versions, err := manager.GetAppliedVersions()
+	require.NoError(t, err)
+	assert.Empty(t, versions)
+}
+
+func TestMigrationManager_GetAppliedVersions_WithVersions(t *testing.T) {
+	db, _, cleanup := testDB(t)
+	defer cleanup()
+
+	manager := NewMigrationManager(db)
+	err := manager.EnsureSchemaVersionsTable()
+	require.NoError(t, err)
+
+	// Insert some versions
+	_, err = db.Exec("INSERT INTO schema_versions (version, applied_at) VALUES (1, '2025-01-01T00:00:00Z')")
+	require.NoError(t, err)
+	_, err = db.Exec("INSERT INTO schema_versions (version, applied_at) VALUES (2, '2025-01-02T00:00:00Z')")
+	require.NoError(t, err)
+
+	versions, err := manager.GetAppliedVersions()
+	require.NoError(t, err)
+	assert.Len(t, versions, 2)
+	assert.True(t, versions[1])
+	assert.True(t, versions[2])
+	assert.False(t, versions[3]) // Not applied
+}
+
+func TestMigrationManager_ApplyMigration(t *testing.T) {
+	db, _, cleanup := testDB(t)
+	defer cleanup()
+
+	manager := NewMigrationManager(db)
+	err := manager.EnsureSchemaVersionsTable()
+	require.NoError(t, err)
+
+	// Apply a simple migration
+	migration := Migration{
+		Version: 100,
+		Name:    "test_migration",
+		SQL:     "CREATE TABLE test_table (id INTEGER PRIMARY KEY, name TEXT)",
+	}
+
+	err = manager.ApplyMigration(migration)
+	require.NoError(t, err)
+
+	// Verify table was created
+	var count int
+	err = db.QueryRow("SELECT COUNT(*) FROM sqlite_master WHERE type='table' AND name='test_table'").Scan(&count)
+	require.NoError(t, err)
+	assert.Equal(t, 1, count)
+
+	// Verify migration was recorded
+	var version int
+	err = db.QueryRow("SELECT version FROM schema_versions WHERE version = 100").Scan(&version)
+	require.NoError(t, err)
+	assert.Equal(t, 100, version)
+}
+
+func TestMigrationManager_ApplyMigration_InvalidSQL(t *testing.T) {
+	db, _, cleanup := testDB(t)
+	defer cleanup()
+
+	manager := NewMigrationManager(db)
+	err := manager.EnsureSchemaVersionsTable()
+	require.NoError(t, err)
+
+	// Try to apply invalid migration
+	migration := Migration{
+		Version: 100,
+		Name:    "invalid_migration",
+		SQL:     "INVALID SQL SYNTAX",
+	}
+
+	err = manager.ApplyMigration(migration)
+	assert.Error(t, err)
+	assert.Contains(t, err.Error(), "execute migration 100")
+}
+
+func TestMigrationManager_RunMigrations_SingleMigration(t *testing.T) {
+	db, _, cleanup := testDB(t)
+	defer cleanup()
+
+	// Create a test migration manager with a subset of migrations
+	manager := NewMigrationManager(db)
+
+	// First ensure schema versions table exists
+	err := manager.EnsureSchemaVersionsTable()
+	require.NoError(t, err)
+
+	// Apply first migration manually
+	err = manager.ApplyMigration(Migrations[0])
+	require.NoError(t, err)
+
+	// Verify the first migration version was recorded
+	versions, err := manager.GetAppliedVersions()
+	require.NoError(t, err)
+	assert.True(t, versions[Migrations[0].Version])
+}
+
+func TestMigrationManager_RunMigrations_SkipsApplied(t *testing.T) {
+	db, _, cleanup := testDB(t)
+	defer cleanup()
+
+	manager := NewMigrationManager(db)
+	err := manager.EnsureSchemaVersionsTable()
+	require.NoError(t, err)
+
+	// Mark some migrations as already applied
+	_, err = db.Exec("INSERT INTO schema_versions (version, applied_at) VALUES (4, '2025-01-01T00:00:00Z')")
+	require.NoError(t, err)
+
+	// Get applied versions
+	versions, err := manager.GetAppliedVersions()
+	require.NoError(t, err)
+	assert.True(t, versions[4])
+}
+
+func TestMigration_Struct(t *testing.T) {
+	m := Migration{
+		Version: 1,
+		Name:    "test",
+		SQL:     "SELECT 1",
+	}
+
+	assert.Equal(t, 1, m.Version)
+	assert.Equal(t, "test", m.Name)
+	assert.Equal(t, "SELECT 1", m.SQL)
+}
+
+func TestMigrations_List(t *testing.T) {
+	// Verify migrations are ordered correctly
+	assert.NotEmpty(t, Migrations)
+
+	// Verify all migrations have required fields
+	for i, m := range Migrations {
+		assert.Greater(t, m.Version, 0, "Migration %d has invalid version", i)
+		assert.NotEmpty(t, m.Name, "Migration %d has empty name", i)
+		assert.NotEmpty(t, m.SQL, "Migration %d has empty SQL", i)
+	}
+
+	// Verify key migrations exist
+	versionSet := make(map[int]bool)
+	for _, m := range Migrations {
+		versionSet[m.Version] = true
+	}
+
+	assert.True(t, versionSet[4], "Should have sdk_agent_architecture migration")
+	assert.True(t, versionSet[17], "Should have sqlite_vec_vectors migration")
+}

internal/db/sqlite/observation.go

@@ -0,0 +1,468 @@
+// Package sqlite provides SQLite database operations for claude-mnemonic.
+package sqlite
+
+import (
+	"context"
+	"database/sql"
+	"encoding/json"
+	"strings"
+	"time"
+
+	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
+)
+
+// CleanupFunc is a callback for when observations are cleaned up.
+// Receives the IDs of deleted observations for downstream cleanup (e.g., vector DB).
+type CleanupFunc func(ctx context.Context, deletedIDs []int64)
+
+// ObservationStore provides observation-related database operations.
+type ObservationStore struct {
+	store       *Store
+	cleanupFunc CleanupFunc
+}
+
+// NewObservationStore creates a new observation store.
+func NewObservationStore(store *Store) *ObservationStore {
+	return &ObservationStore{store: store}
+}
+
+// SetCleanupFunc sets the callback for when observations are deleted during cleanup.
+func (s *ObservationStore) SetCleanupFunc(fn CleanupFunc) {
+	s.cleanupFunc = fn
+}
+
+// StoreObservation stores a new observation.
+func (s *ObservationStore) StoreObservation(ctx context.Context, sdkSessionID, project string, obs *models.ParsedObservation, promptNumber int, discoveryTokens int64) (int64, int64, error) {
+	now := time.Now()
+	nowEpoch := now.UnixMilli()
+
+	// Ensure session exists (auto-create if missing)
+	if err := s.ensureSessionExists(ctx, sdkSessionID, project); err != nil {
+		return 0, 0, err
+	}
+
+	// Determine scope: use parsed scope if set, otherwise auto-determine from concepts
+	scope := obs.Scope
+	if scope == "" {
+		scope = models.DetermineScope(obs.Concepts)
+	}
+
+	factsJSON, _ := json.Marshal(obs.Facts)
+	conceptsJSON, _ := json.Marshal(obs.Concepts)
+	filesReadJSON, _ := json.Marshal(obs.FilesRead)
+	filesModifiedJSON, _ := json.Marshal(obs.FilesModified)
+	fileMtimesJSON, _ := json.Marshal(obs.FileMtimes)
+
+	const query = `
+		INSERT INTO observations
+		(sdk_session_id, project, scope, type, title, subtitle, facts, narrative, concepts,
+		 files_read, files_modified, file_mtimes, prompt_number, discovery_tokens, created_at, created_at_epoch)
+		VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`
+
+	result, err := s.store.ExecContext(ctx, query,
+		sdkSessionID, project, string(scope), string(obs.Type),
+		nullString(obs.Title), nullString(obs.Subtitle),
+		string(factsJSON), nullString(obs.Narrative), string(conceptsJSON),
+		string(filesReadJSON), string(filesModifiedJSON), string(fileMtimesJSON),
+		nullInt(promptNumber), discoveryTokens,
+		now.Format(time.RFC3339), nowEpoch,
+	)
+	if err != nil {
+		return 0, 0, err
+	}
+
+	id, _ := result.LastInsertId()
+
+	// Cleanup old observations beyond the limit for this project (async to not block handler)
+	if project != "" {
+		go func(proj string) {
+			cleanupCtx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+			defer cancel()
+			deletedIDs, _ := s.CleanupOldObservations(cleanupCtx, proj)
+			if len(deletedIDs) > 0 && s.cleanupFunc != nil {
+				s.cleanupFunc(cleanupCtx, deletedIDs)
+			}
+		}(project)
+	}
+
+	return id, nowEpoch, nil
+}
+
+// ensureSessionExists creates a session if it doesn't exist.
+func (s *ObservationStore) ensureSessionExists(ctx context.Context, sdkSessionID, project string) error {
+	return EnsureSessionExists(ctx, s.store, sdkSessionID, project)
+}
+
+// GetObservationByID retrieves an observation by ID.
+func (s *ObservationStore) GetObservationByID(ctx context.Context, id int64) (*models.Observation, error) {
+	const query = `
+		SELECT id, sdk_session_id, project, COALESCE(scope, 'project') as scope, type, title, subtitle, facts, narrative,
+		       concepts, files_read, files_modified, file_mtimes, prompt_number, discovery_tokens,
+		       created_at, created_at_epoch
+		FROM observations
+		WHERE id = ?
+	`
+
+	obs, err := scanObservation(s.store.QueryRowContext(ctx, query, id))
+	if err == sql.ErrNoRows {
+		return nil, nil
+	}
+	return obs, err
+}
+
+// GetObservationsByIDs retrieves observations by a list of IDs.
+func (s *ObservationStore) GetObservationsByIDs(ctx context.Context, ids []int64, orderBy string, limit int) ([]*models.Observation, error) {
+	if len(ids) == 0 {
+		return nil, nil
+	}
+
+	// Build query with placeholders
+	// #nosec G202 -- query uses parameterized placeholders, not user input
+	query := `
+		SELECT id, sdk_session_id, project, COALESCE(scope, 'project') as scope, type, title, subtitle, facts, narrative,
+		       concepts, files_read, files_modified, file_mtimes, prompt_number, discovery_tokens,
+		       created_at, created_at_epoch
+		FROM observations
+		WHERE id IN (?` + repeatPlaceholders(len(ids)-1) + `)
+		ORDER BY created_at_epoch `
+
+	if orderBy == "date_asc" {
+		query += "ASC"
+	} else {
+		query += "DESC"
+	}
+
+	if limit > 0 {
+		query += " LIMIT ?"
+	}
+
+	// Convert []int64 to []interface{}
+	args := int64SliceToInterface(ids)
+	if limit > 0 {
+		args = append(args, limit)
+	}
+
+	rows, err := s.store.db.QueryContext(ctx, query, args...)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	return scanObservationRows(rows)
+}
+
+// GetRecentObservations retrieves recent observations for a project.
+// This includes project-scoped observations for the specified project AND global observations.
+func (s *ObservationStore) GetRecentObservations(ctx context.Context, project string, limit int) ([]*models.Observation, error) {
+	const query = `
+		SELECT id, sdk_session_id, project, COALESCE(scope, 'project') as scope, type, title, subtitle, facts, narrative,
+		       concepts, files_read, files_modified, file_mtimes, prompt_number, discovery_tokens,
+		       created_at, created_at_epoch
+		FROM observations
+		WHERE (project = ? AND (scope IS NULL OR scope = 'project'))
+		   OR scope = 'global'
+		ORDER BY created_at_epoch DESC
+		LIMIT ?
+	`
+
+	rows, err := s.store.QueryContext(ctx, query, project, limit)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	return scanObservationRows(rows)
+}
+
+// GetObservationsByProjectStrict retrieves observations strictly for a specific project.
+// Unlike GetRecentObservations, this does NOT include global observations from other projects.
+// Use this for dashboard filtering where the user expects to see only that project's data.
+func (s *ObservationStore) GetObservationsByProjectStrict(ctx context.Context, project string, limit int) ([]*models.Observation, error) {
+	const query = `
+		SELECT id, sdk_session_id, project, COALESCE(scope, 'project') as scope, type, title, subtitle, facts, narrative,
+		       concepts, files_read, files_modified, file_mtimes, prompt_number, discovery_tokens,
+		       created_at, created_at_epoch
+		FROM observations
+		WHERE project = ?
+		ORDER BY created_at_epoch DESC
+		LIMIT ?
+	`
+
+	rows, err := s.store.QueryContext(ctx, query, project, limit)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	return scanObservationRows(rows)
+}
+
+// GetObservationCount returns the count of observations for a project (including global).
+func (s *ObservationStore) GetObservationCount(ctx context.Context, project string) (int, error) {
+	const query = `
+		SELECT COUNT(*) FROM observations
+		WHERE project = ? OR scope = 'global'
+	`
+	var count int
+	err := s.store.QueryRowContext(ctx, query, project).Scan(&count)
+	return count, err
+}
+
+// GetAllRecentObservations retrieves recent observations across all projects.
+func (s *ObservationStore) GetAllRecentObservations(ctx context.Context, limit int) ([]*models.Observation, error) {
+	const query = `
+		SELECT id, sdk_session_id, project, COALESCE(scope, 'project') as scope, type, title, subtitle, facts, narrative,
+		       concepts, files_read, files_modified, file_mtimes, prompt_number, discovery_tokens,
+		       created_at, created_at_epoch
+		FROM observations
+		ORDER BY created_at_epoch DESC
+		LIMIT ?
+	`
+
+	rows, err := s.store.QueryContext(ctx, query, limit)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	return scanObservationRows(rows)
+}
+
+// SearchObservationsFTS performs full-text search on observations.
+func (s *ObservationStore) SearchObservationsFTS(ctx context.Context, query, project string, limit int) ([]*models.Observation, error) {
+	if limit <= 0 {
+		limit = 10
+	}
+
+	// Extract keywords from the query (words > 3 chars, not common)
+	keywords := extractKeywords(query)
+	if len(keywords) == 0 {
+		return nil, nil
+	}
+
+	// Build FTS5 query: keyword1 OR keyword2 OR keyword3
+	ftsTerms := strings.Join(keywords, " OR ")
+
+	// Use FTS5 to search title, subtitle, and narrative
+	const ftsQuery = `
+		SELECT o.id, o.sdk_session_id, o.project, COALESCE(o.scope, 'project') as scope, o.type,
+		       o.title, o.subtitle, o.facts, o.narrative, o.concepts, o.files_read, o.files_modified,
+		       o.file_mtimes, o.prompt_number, o.discovery_tokens, o.created_at, o.created_at_epoch
+		FROM observations o
+		JOIN observations_fts fts ON o.id = fts.rowid
+		WHERE observations_fts MATCH ?
+		  AND (o.project = ? OR o.scope = 'global')
+		ORDER BY rank
+		LIMIT ?
+	`
+
+	rows, err := s.store.QueryContext(ctx, ftsQuery, ftsTerms, project, limit)
+	if err != nil {
+		// FTS failed, try LIKE fallback
+		return s.searchObservationsLike(ctx, keywords, project, limit)
+	}
+	defer rows.Close()
+
+	observations, err := scanObservationRows(rows)
+	if err != nil {
+		return nil, err
+	}
+
+	// If FTS returned nothing, try LIKE search
+	if len(observations) == 0 {
+		return s.searchObservationsLike(ctx, keywords, project, limit)
+	}
+
+	return observations, nil
+}
+
+// searchObservationsLike performs fallback LIKE search on observations.
+func (s *ObservationStore) searchObservationsLike(ctx context.Context, keywords []string, project string, limit int) ([]*models.Observation, error) {
+	if len(keywords) == 0 {
+		return nil, nil
+	}
+
+	// Build LIKE conditions for each keyword
+	var conditions []string
+	var args []interface{}
+
+	for _, kw := range keywords {
+		pattern := "%" + kw + "%"
+		conditions = append(conditions, "(title LIKE ? OR subtitle LIKE ? OR narrative LIKE ?)")
+		args = append(args, pattern, pattern, pattern)
+	}
+
+	// #nosec G202 -- query uses parameterized placeholders, not user input
+	query := `
+		SELECT id, sdk_session_id, project, COALESCE(scope, 'project') as scope, type,
+		       title, subtitle, facts, narrative, concepts, files_read, files_modified,
+		       file_mtimes, prompt_number, discovery_tokens, created_at, created_at_epoch
+		FROM observations
+		WHERE (` + strings.Join(conditions, " OR ") + `)
+		  AND (project = ? OR scope = 'global')
+		ORDER BY created_at_epoch DESC
+		LIMIT ?
+	`
+	args = append(args, project, limit)
+
+	rows, err := s.store.db.QueryContext(ctx, query, args...)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	return scanObservationRows(rows)
+}
+
+// extractKeywords extracts significant words from a query.
+func extractKeywords(query string) []string {
+	// Common words to skip
+	stopWords := map[string]bool{
+		"what": true, "is": true, "the": true, "a": true, "an": true,
+		"how": true, "does": true, "do": true, "can": true, "could": true,
+		"would": true, "should": true, "where": true, "when": true, "why": true,
+		"which": true, "who": true, "this": true, "that": true, "these": true,
+		"those": true, "it": true, "its": true, "for": true, "from": true,
+		"with": true, "about": true, "into": true, "through": true, "during": true,
+		"before": true, "after": true, "above": true, "below": true, "to": true,
+		"of": true, "in": true, "on": true, "at": true, "by": true, "and": true,
+		"or": true, "but": true, "if": true, "then": true, "else": true,
+		"function": true, "method": true, "class": true, "file": true,
+		"code": true, "work": true, "works": true, "working": true,
+		"please": true, "help": true, "me": true, "my": true, "i": true,
+		"tell": true, "show": true, "explain": true, "describe": true,
+	}
+
+	// Split and filter
+	words := strings.FieldsFunc(strings.ToLower(query), func(r rune) bool {
+		return !((r >= 'a' && r <= 'z') || (r >= 'A' && r <= 'Z') || (r >= '0' && r <= '9') || r == '_')
+	})
+
+	var keywords []string
+	seen := make(map[string]bool)
+
+	for _, word := range words {
+		// Skip short words, stop words, and duplicates
+		if len(word) < 4 || stopWords[word] || seen[word] {
+			continue
+		}
+		seen[word] = true
+		keywords = append(keywords, word)
+	}
+
+	return keywords
+}
+
+// DeleteObservations deletes multiple observations by ID.
+func (s *ObservationStore) DeleteObservations(ctx context.Context, ids []int64) (int64, error) {
+	if len(ids) == 0 {
+		return 0, nil
+	}
+
+	query := `DELETE FROM observations WHERE id IN (?` + repeatPlaceholders(len(ids)-1) + `)` // #nosec G202 -- uses parameterized placeholders
+
+	args := make([]interface{}, len(ids))
+	for i, id := range ids {
+		args[i] = id
+	}
+
+	result, err := s.store.db.ExecContext(ctx, query, args...)
+	if err != nil {
+		return 0, err
+	}
+	return result.RowsAffected()
+}
+
+// MaxObservationsPerProject is the hard limit of observations per project.
+const MaxObservationsPerProject = 100
+
+// CleanupOldObservations deletes observations beyond the limit for a project.
+// Keeps the most recent MaxObservationsPerProject observations per project.
+// Returns the IDs of deleted observations for downstream cleanup (e.g., vector DB).
+func (s *ObservationStore) CleanupOldObservations(ctx context.Context, project string) ([]int64, error) {
+	// First, find IDs that will be deleted
+	const selectQuery = `
+		SELECT id FROM observations
+		WHERE project = ? AND id NOT IN (
+			SELECT id FROM observations
+			WHERE project = ?
+			ORDER BY created_at_epoch DESC
+			LIMIT ?
+		)
+	`
+
+	rows, err := s.store.QueryContext(ctx, selectQuery, project, project, MaxObservationsPerProject)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var toDelete []int64
+	for rows.Next() {
+		var id int64
+		if err := rows.Scan(&id); err != nil {
+			return nil, err
+		}
+		toDelete = append(toDelete, id)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	if len(toDelete) == 0 {
+		return nil, nil
+	}
+
+	// Delete the observations
+	const deleteQuery = `
+		DELETE FROM observations
+		WHERE project = ? AND id NOT IN (
+			SELECT id FROM observations
+			WHERE project = ?
+			ORDER BY created_at_epoch DESC
+			LIMIT ?
+		)
+	`
+
+	_, err = s.store.ExecContext(ctx, deleteQuery, project, project, MaxObservationsPerProject)
+	if err != nil {
+		return nil, err
+	}
+
+	return toDelete, nil
+}
+
+// Helper functions
+
+// scanObservation scans a single observation from a row scanner.
+// This reduces code duplication across all observation query methods.
+func scanObservation(scanner interface{ Scan(...interface{}) error }) (*models.Observation, error) {
+	var obs models.Observation
+	if err := scanner.Scan(
+		&obs.ID, &obs.SDKSessionID, &obs.Project, &obs.Scope, &obs.Type,
+		&obs.Title, &obs.Subtitle, &obs.Facts, &obs.Narrative,
+		&obs.Concepts, &obs.FilesRead, &obs.FilesModified, &obs.FileMtimes,
+		&obs.PromptNumber, &obs.DiscoveryTokens,
+		&obs.CreatedAt, &obs.CreatedAtEpoch,
+	); err != nil {
+		return nil, err
+	}
+	return &obs, nil
+}
+
+// scanObservationRows scans multiple observations from rows.
+// Caller must close rows after calling this function.
+func scanObservationRows(rows *sql.Rows) ([]*models.Observation, error) {
+	var observations []*models.Observation
+	for rows.Next() {
+		obs, err := scanObservation(rows)
+		if err != nil {
+			return nil, err
+		}
+		observations = append(observations, obs)
+	}
+	return observations, rows.Err()
+}
+
+// Note: nullString, nullInt, and repeatPlaceholders are in helpers.go

internal/db/sqlite/observation_test.go

@@ -0,0 +1,947 @@
+// Package sqlite provides SQLite database operations for claude-mnemonic.
+package sqlite
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+// testObservationStoreBasic creates an ObservationStore with base tables (no FTS5).
+func testObservationStoreBasic(t *testing.T) (*ObservationStore, *Store, func()) {
+	t.Helper()
+
+	db, _, cleanup := testDB(t)
+	createBaseTables(t, db)
+
+	store := newStoreFromDB(db)
+	obsStore := NewObservationStore(store)
+
+	return obsStore, store, cleanup
+}
+
+// testObservationStore creates an ObservationStore with a test database including FTS5.
+func testObservationStore(t *testing.T) (*ObservationStore, *Store, func()) {
+	t.Helper()
+
+	db, _, cleanup := testDB(t)
+	createAllTables(t, db)
+
+	store := newStoreFromDB(db)
+	obsStore := NewObservationStore(store)
+
+	return obsStore, store, cleanup
+}
+
+// ObservationStoreSuite is a test suite for ObservationStore operations.
+type ObservationStoreSuite struct {
+	suite.Suite
+	obsStore *ObservationStore
+	store    *Store
+	cleanup  func()
+}
+
+func (s *ObservationStoreSuite) SetupTest() {
+	s.obsStore, s.store, s.cleanup = testObservationStoreBasic(s.T())
+}
+
+func (s *ObservationStoreSuite) TearDownTest() {
+	if s.cleanup != nil {
+		s.cleanup()
+	}
+}
+
+func TestObservationStoreSuite(t *testing.T) {
+	suite.Run(t, new(ObservationStoreSuite))
+}
+
+// TestStoreObservation_TableDriven tests observation storage with various scenarios.
+func (s *ObservationStoreSuite) TestStoreObservation_TableDriven() {
+	ctx := context.Background()
+
+	tests := []struct {
+		name         string
+		sdkSessionID string
+		project      string
+		obs          *models.ParsedObservation
+		promptNum    int
+		tokens       int64
+		wantErr      bool
+	}{
+		{
+			name:         "basic discovery observation",
+			sdkSessionID: "session-basic",
+			project:      "project-a",
+			obs: &models.ParsedObservation{
+				Type:      models.ObsTypeDiscovery,
+				Title:     "Test Title",
+				Subtitle:  "Test Subtitle",
+				Narrative: "Test narrative content",
+				Facts:     []string{"Fact 1", "Fact 2"},
+				Concepts:  []string{"testing", "golang"},
+			},
+			promptNum: 1,
+			tokens:    100,
+			wantErr:   false,
+		},
+		{
+			name:         "bugfix observation",
+			sdkSessionID: "session-bugfix",
+			project:      "project-b",
+			obs: &models.ParsedObservation{
+				Type:          models.ObsTypeBugfix,
+				Title:         "Fixed null pointer",
+				Narrative:     "Fixed null pointer exception in handler",
+				FilesModified: []string{"handler.go"},
+			},
+			promptNum: 2,
+			tokens:    50,
+			wantErr:   false,
+		},
+		{
+			name:         "global scope observation",
+			sdkSessionID: "session-global",
+			project:      "project-c",
+			obs: &models.ParsedObservation{
+				Type:      models.ObsTypeDiscovery,
+				Title:     "Security best practice",
+				Narrative: "Always validate user input",
+				Concepts:  []string{"security", "best-practice"},
+			},
+			promptNum: 1,
+			tokens:    75,
+			wantErr:   false,
+		},
+		{
+			name:         "observation with files",
+			sdkSessionID: "session-files",
+			project:      "project-d",
+			obs: &models.ParsedObservation{
+				Type:          models.ObsTypeFeature,
+				Title:         "Added authentication",
+				Narrative:     "Implemented JWT authentication",
+				FilesRead:     []string{"config.go", "auth.go"},
+				FilesModified: []string{"handler.go", "middleware.go"},
+				FileMtimes:    map[string]int64{"handler.go": 1234567890, "middleware.go": 1234567891},
+			},
+			promptNum: 3,
+			tokens:    200,
+			wantErr:   false,
+		},
+		{
+			name:         "minimal observation",
+			sdkSessionID: "session-minimal",
+			project:      "project-e",
+			obs: &models.ParsedObservation{
+				Type: models.ObsTypeChange,
+			},
+			promptNum: 0,
+			tokens:    0,
+			wantErr:   false,
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			id, epoch, err := s.obsStore.StoreObservation(ctx, tt.sdkSessionID, tt.project, tt.obs, tt.promptNum, tt.tokens)
+			if tt.wantErr {
+				s.Error(err)
+				return
+			}
+
+			s.NoError(err)
+			s.Greater(id, int64(0))
+			s.Greater(epoch, int64(0))
+
+			// Retrieve and verify
+			retrieved, err := s.obsStore.GetObservationByID(ctx, id)
+			s.NoError(err)
+			s.NotNil(retrieved)
+			s.Equal(id, retrieved.ID)
+			s.Equal(tt.project, retrieved.Project)
+			s.Equal(tt.obs.Type, retrieved.Type)
+		})
+	}
+}
+
+// TestGetObservationByID_NotFound tests retrieval of non-existent observation.
+func (s *ObservationStoreSuite) TestGetObservationByID_NotFound() {
+	ctx := context.Background()
+
+	obs, err := s.obsStore.GetObservationByID(ctx, 99999)
+	s.NoError(err)
+	s.Nil(obs)
+}
+
+// TestGetRecentObservations_TableDriven tests recent observations retrieval.
+func (s *ObservationStoreSuite) TestGetRecentObservations_TableDriven() {
+	ctx := context.Background()
+
+	// Create 15 observations
+	for i := 0; i < 15; i++ {
+		obs := &models.ParsedObservation{
+			Type:  models.ObsTypeDiscovery,
+			Title: "Observation " + string(rune('A'+i)),
+		}
+		_, _, err := s.obsStore.StoreObservation(ctx, "session-"+string(rune('0'+i)), "project-a", obs, i, 10)
+		s.NoError(err)
+		time.Sleep(time.Millisecond) // Ensure different timestamps
+	}
+
+	tests := []struct {
+		name      string
+		project   string
+		limit     int
+		wantCount int
+	}{
+		{
+			name:      "limit 5",
+			project:   "project-a",
+			limit:     5,
+			wantCount: 5,
+		},
+		{
+			name:      "limit 10",
+			project:   "project-a",
+			limit:     10,
+			wantCount: 10,
+		},
+		{
+			name:      "limit higher than count",
+			project:   "project-a",
+			limit:     50,
+			wantCount: 15,
+		},
+		{
+			name:      "different project (no results)",
+			project:   "project-b",
+			limit:     10,
+			wantCount: 0,
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			observations, err := s.obsStore.GetRecentObservations(ctx, tt.project, tt.limit)
+			s.NoError(err)
+			s.Len(observations, tt.wantCount)
+		})
+	}
+}
+
+// TestDeleteObservations_TableDriven tests observation deletion.
+func (s *ObservationStoreSuite) TestDeleteObservations_TableDriven() {
+	ctx := context.Background()
+
+	// Create observations
+	var ids []int64
+	for i := 0; i < 5; i++ {
+		obs := &models.ParsedObservation{
+			Type:  models.ObsTypeDiscovery,
+			Title: "To delete " + string(rune('A'+i)),
+		}
+		id, _, err := s.obsStore.StoreObservation(ctx, "session-del", "project-del", obs, i, 10)
+		s.NoError(err)
+		ids = append(ids, id)
+	}
+
+	tests := []struct {
+		name        string
+		toDelete    []int64
+		wantDeleted int64
+		wantRemain  int
+	}{
+		{
+			name:        "delete none",
+			toDelete:    []int64{},
+			wantDeleted: 0,
+			wantRemain:  5,
+		},
+		{
+			name:        "delete one",
+			toDelete:    ids[0:1],
+			wantDeleted: 1,
+			wantRemain:  4,
+		},
+		{
+			name:        "delete remaining",
+			toDelete:    ids[1:],
+			wantDeleted: 4,
+			wantRemain:  0,
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			deleted, err := s.obsStore.DeleteObservations(ctx, tt.toDelete)
+			s.NoError(err)
+			s.Equal(tt.wantDeleted, deleted)
+
+			remaining, err := s.obsStore.GetAllRecentObservations(ctx, 100)
+			s.NoError(err)
+			s.Len(remaining, tt.wantRemain)
+		})
+	}
+}
+
+// TestGetObservationsByIDs tests retrieval by multiple IDs.
+func (s *ObservationStoreSuite) TestGetObservationsByIDs() {
+	ctx := context.Background()
+
+	// Create observations
+	var ids []int64
+	for i := 0; i < 5; i++ {
+		obs := &models.ParsedObservation{
+			Type:  models.ObsTypeDiscovery,
+			Title: "By ID " + string(rune('A'+i)),
+		}
+		id, _, err := s.obsStore.StoreObservation(ctx, "session-byid", "project-byid", obs, i, 10)
+		s.NoError(err)
+		ids = append(ids, id)
+		time.Sleep(time.Millisecond)
+	}
+
+	tests := []struct {
+		name      string
+		queryIDs  []int64
+		orderBy   string
+		limit     int
+		wantCount int
+	}{
+		{
+			name:      "empty IDs",
+			queryIDs:  []int64{},
+			orderBy:   "date_desc",
+			limit:     10,
+			wantCount: 0,
+		},
+		{
+			name:      "single ID",
+			queryIDs:  ids[0:1],
+			orderBy:   "date_desc",
+			limit:     10,
+			wantCount: 1,
+		},
+		{
+			name:      "all IDs",
+			queryIDs:  ids,
+			orderBy:   "date_desc",
+			limit:     10,
+			wantCount: 5,
+		},
+		{
+			name:      "with limit less than IDs",
+			queryIDs:  ids,
+			orderBy:   "date_desc",
+			limit:     3,
+			wantCount: 3,
+		},
+		{
+			name:      "ascending order",
+			queryIDs:  ids,
+			orderBy:   "date_asc",
+			limit:     10,
+			wantCount: 5,
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			observations, err := s.obsStore.GetObservationsByIDs(ctx, tt.queryIDs, tt.orderBy, tt.limit)
+			if tt.wantCount == 0 {
+				s.NoError(err)
+				s.Nil(observations)
+			} else {
+				s.NoError(err)
+				s.Len(observations, tt.wantCount)
+			}
+		})
+	}
+}
+
+// TestGlobalScope tests global vs project scope.
+func (s *ObservationStoreSuite) TestGlobalScope() {
+	ctx := context.Background()
+
+	// Create project-scoped observation
+	projectObs := &models.ParsedObservation{
+		Type:     models.ObsTypeDiscovery,
+		Title:    "Project specific",
+		Concepts: []string{"project-specific"},
+	}
+	_, _, err := s.obsStore.StoreObservation(ctx, "session-scope", "project-a", projectObs, 1, 10)
+	s.NoError(err)
+
+	// Create global-scoped observation (security concept triggers global)
+	globalObs := &models.ParsedObservation{
+		Type:     models.ObsTypeDiscovery,
+		Title:    "Global security",
+		Concepts: []string{"security"},
+	}
+	_, _, err = s.obsStore.StoreObservation(ctx, "session-scope", "project-a", globalObs, 2, 10)
+	s.NoError(err)
+
+	// Project-a should see both
+	resultsA, err := s.obsStore.GetRecentObservations(ctx, "project-a", 10)
+	s.NoError(err)
+	s.Len(resultsA, 2)
+
+	// Project-b should only see global
+	resultsB, err := s.obsStore.GetRecentObservations(ctx, "project-b", 10)
+	s.NoError(err)
+	s.Len(resultsB, 1)
+	s.Equal("Global security", resultsB[0].Title.String)
+	s.Equal(models.ScopeGlobal, resultsB[0].Scope)
+}
+
+// TestSetCleanupFunc tests the cleanup function callback.
+func (s *ObservationStoreSuite) TestSetCleanupFunc() {
+	ctx := context.Background()
+
+	var calledWith []int64
+	s.obsStore.SetCleanupFunc(func(ctx context.Context, deletedIDs []int64) {
+		calledWith = deletedIDs
+	})
+
+	// Store an observation
+	obs := &models.ParsedObservation{
+		Type:  models.ObsTypeDiscovery,
+		Title: "Test cleanup",
+	}
+	_, _, err := s.obsStore.StoreObservation(ctx, "session-cleanup", "project-cleanup", obs, 1, 10)
+	s.NoError(err)
+
+	// Cleanup should not have been called since nothing was deleted
+	s.Empty(calledWith)
+}
+
+// TestGetObservationCount tests observation counting.
+func (s *ObservationStoreSuite) TestGetObservationCount() {
+	ctx := context.Background()
+
+	// Create observations for project-a
+	for i := 0; i < 5; i++ {
+		obs := &models.ParsedObservation{
+			Type: models.ObsTypeDiscovery,
+		}
+		_, _, err := s.obsStore.StoreObservation(ctx, "session-count", "project-a", obs, i, 10)
+		s.NoError(err)
+	}
+
+	// Create global observation
+	globalObs := &models.ParsedObservation{
+		Type:     models.ObsTypeDiscovery,
+		Concepts: []string{"security"},
+	}
+	_, _, err := s.obsStore.StoreObservation(ctx, "session-count", "project-a", globalObs, 6, 10)
+	s.NoError(err)
+
+	// Project-a should count 6 (5 project + 1 global)
+	count, err := s.obsStore.GetObservationCount(ctx, "project-a")
+	s.NoError(err)
+	s.Equal(6, count)
+
+	// Project-b should count 1 (only global)
+	count, err = s.obsStore.GetObservationCount(ctx, "project-b")
+	s.NoError(err)
+	s.Equal(1, count)
+}
+
+func TestObservationStore_StoreAndRetrieve(t *testing.T) {
+	obsStore, _, cleanup := testObservationStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	obs := &models.ParsedObservation{
+		Type:          models.ObsTypeDiscovery,
+		Title:         "Test Observation",
+		Subtitle:      "A subtitle",
+		Narrative:     "This is a test observation about testing",
+		Facts:         []string{"Fact 1", "Fact 2"},
+		Concepts:      []string{"testing", "golang"},
+		FilesRead:     []string{"test.go"},
+		FilesModified: []string{},
+	}
+
+	id, epoch, err := obsStore.StoreObservation(ctx, "session-1", "project-a", obs, 1, 100)
+	require.NoError(t, err)
+	assert.Greater(t, id, int64(0))
+	assert.Greater(t, epoch, int64(0))
+
+	// Retrieve by ID
+	retrieved, err := obsStore.GetObservationByID(ctx, id)
+	require.NoError(t, err)
+	require.NotNil(t, retrieved)
+
+	assert.Equal(t, id, retrieved.ID)
+	assert.Equal(t, "session-1", retrieved.SDKSessionID)
+	assert.Equal(t, "project-a", retrieved.Project)
+	assert.Equal(t, models.ObsTypeDiscovery, retrieved.Type)
+	assert.Equal(t, "Test Observation", retrieved.Title.String)
+	assert.Equal(t, "A subtitle", retrieved.Subtitle.String)
+	assert.Equal(t, "This is a test observation about testing", retrieved.Narrative.String)
+	assert.Equal(t, []string{"Fact 1", "Fact 2"}, []string(retrieved.Facts))
+	assert.Equal(t, []string{"testing", "golang"}, []string(retrieved.Concepts))
+}
+
+func TestObservationStore_GetRecentObservations(t *testing.T) {
+	obsStore, _, cleanup := testObservationStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create multiple observations
+	for i := 0; i < 10; i++ {
+		obs := &models.ParsedObservation{
+			Type:      models.ObsTypeDiscovery,
+			Title:     "Observation " + string(rune('A'+i)),
+			Narrative: "Content " + string(rune('A'+i)),
+			Concepts:  []string{"test"},
+		}
+		_, _, err := obsStore.StoreObservation(ctx, "session-1", "project-a", obs, i+1, 100)
+		require.NoError(t, err)
+		time.Sleep(time.Millisecond) // Ensure different timestamps
+	}
+
+	// Get recent with limit 5
+	recent, err := obsStore.GetRecentObservations(ctx, "project-a", 5)
+	require.NoError(t, err)
+	assert.Len(t, recent, 5)
+
+	// Get recent with limit 20 (more than exists)
+	recent, err = obsStore.GetRecentObservations(ctx, "project-a", 20)
+	require.NoError(t, err)
+	assert.Len(t, recent, 10)
+}
+
+func TestObservationStore_SearchObservationsFTS(t *testing.T) {
+	obsStore, _, cleanup := testObservationStore(t)
+	defer cleanup()
+
+	// FTS5 tables are created by testObservationStore via testutil.CreateAllTables
+	ctx := context.Background()
+
+	// Create observations with different content
+	observations := []struct {
+		title     string
+		narrative string
+	}{
+		{"Authentication implementation", "JWT based authentication flow"},
+		{"Database setup", "PostgreSQL configuration and migrations"},
+		{"Caching layer", "Redis caching implementation"},
+		{"User authentication fix", "Fixed authentication bug in login"},
+		{"API endpoints", "REST API implementation details"},
+	}
+
+	for _, o := range observations {
+		obs := &models.ParsedObservation{
+			Type:      models.ObsTypeDiscovery,
+			Title:     o.title,
+			Narrative: o.narrative,
+		}
+		_, _, err := obsStore.StoreObservation(ctx, "session-1", "project-a", obs, 1, 100)
+		require.NoError(t, err)
+		time.Sleep(time.Millisecond)
+	}
+
+	// Search for authentication - should find 2 observations
+	results, err := obsStore.SearchObservationsFTS(ctx, "authentication", "project-a", 50)
+	require.NoError(t, err)
+	assert.GreaterOrEqual(t, len(results), 2, "should find at least 2 authentication-related observations")
+
+	// Search for database - should find 1 observation
+	results, err = obsStore.SearchObservationsFTS(ctx, "database PostgreSQL", "project-a", 50)
+	require.NoError(t, err)
+	assert.GreaterOrEqual(t, len(results), 1, "should find at least 1 database-related observation")
+}
+
+func TestObservationStore_SearchObservationsFTS_LimitRespected(t *testing.T) {
+	obsStore, _, cleanup := testObservationStore(t)
+	defer cleanup()
+
+	// FTS5 tables are created by testObservationStore via testutil.CreateAllTables
+	ctx := context.Background()
+
+	// Create 20 observations with similar content
+	for i := 0; i < 20; i++ {
+		obs := &models.ParsedObservation{
+			Type:      models.ObsTypeDiscovery,
+			Title:     "Testing observation " + string(rune('A'+i)),
+			Narrative: "This is about testing and quality assurance " + string(rune('A'+i)),
+		}
+		_, _, err := obsStore.StoreObservation(ctx, "session-1", "project-a", obs, 1, 100)
+		require.NoError(t, err)
+		time.Sleep(time.Millisecond)
+	}
+
+	// Search with limit 5
+	results, err := obsStore.SearchObservationsFTS(ctx, "testing quality", "project-a", 5)
+	require.NoError(t, err)
+	assert.LessOrEqual(t, len(results), 5, "should respect limit of 5")
+
+	// Search with limit 15
+	results, err = obsStore.SearchObservationsFTS(ctx, "testing quality", "project-a", 15)
+	require.NoError(t, err)
+	assert.LessOrEqual(t, len(results), 15, "should respect limit of 15")
+
+	// Search with limit 50 (our new default)
+	results, err = obsStore.SearchObservationsFTS(ctx, "testing quality", "project-a", 50)
+	require.NoError(t, err)
+	assert.LessOrEqual(t, len(results), 50, "should respect limit of 50")
+	assert.Equal(t, 20, len(results), "should return all 20 matching observations")
+}
+
+func TestObservationStore_GlobalScope(t *testing.T) {
+	obsStore, _, cleanup := testObservationStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create a project-scoped observation
+	projectObs := &models.ParsedObservation{
+		Type:      models.ObsTypeDiscovery,
+		Title:     "Project specific code",
+		Narrative: "This is specific to project-a",
+		Concepts:  []string{"project-specific"},
+	}
+	_, _, err := obsStore.StoreObservation(ctx, "session-1", "project-a", projectObs, 1, 100)
+	require.NoError(t, err)
+
+	// Create a global-scoped observation (has a globalizable concept)
+	globalObs := &models.ParsedObservation{
+		Type:      models.ObsTypeDiscovery,
+		Title:     "Security best practice",
+		Narrative: "Always validate user input",
+		Concepts:  []string{"security", "best-practice"}, // "security" is in GlobalizableConcepts
+	}
+	_, _, err = obsStore.StoreObservation(ctx, "session-1", "project-a", globalObs, 1, 100)
+	require.NoError(t, err)
+
+	// Get recent for project-a - should see both
+	results, err := obsStore.GetRecentObservations(ctx, "project-a", 10)
+	require.NoError(t, err)
+	assert.Len(t, results, 2)
+
+	// Get recent for project-b - should only see global observation
+	results, err = obsStore.GetRecentObservations(ctx, "project-b", 10)
+	require.NoError(t, err)
+	assert.Len(t, results, 1)
+	assert.Equal(t, "Security best practice", results[0].Title.String)
+	assert.Equal(t, models.ScopeGlobal, results[0].Scope)
+}
+
+func TestObservationStore_DeleteObservations(t *testing.T) {
+	obsStore, _, cleanup := testObservationStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create observations
+	var ids []int64
+	for i := 0; i < 5; i++ {
+		obs := &models.ParsedObservation{
+			Type:  models.ObsTypeDiscovery,
+			Title: "Observation " + string(rune('A'+i)),
+		}
+		id, _, err := obsStore.StoreObservation(ctx, "session-1", "project-a", obs, 1, 100)
+		require.NoError(t, err)
+		ids = append(ids, id)
+	}
+
+	// Verify all exist
+	all, err := obsStore.GetRecentObservations(ctx, "project-a", 10)
+	require.NoError(t, err)
+	assert.Len(t, all, 5)
+
+	// Delete first 3
+	deleted, err := obsStore.DeleteObservations(ctx, ids[:3])
+	require.NoError(t, err)
+	assert.Equal(t, int64(3), deleted)
+
+	// Verify only 2 remain
+	remaining, err := obsStore.GetRecentObservations(ctx, "project-a", 10)
+	require.NoError(t, err)
+	assert.Len(t, remaining, 2)
+}
+
+func TestObservationStore_GetObservationCount(t *testing.T) {
+	obsStore, _, cleanup := testObservationStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create observations for different projects
+	for i := 0; i < 5; i++ {
+		obs := &models.ParsedObservation{
+			Type:  models.ObsTypeDiscovery,
+			Title: "Project A observation " + string(rune('0'+i)),
+		}
+		_, _, err := obsStore.StoreObservation(ctx, "session-1", "project-a", obs, 1, 100)
+		require.NoError(t, err)
+	}
+
+	for i := 0; i < 3; i++ {
+		obs := &models.ParsedObservation{
+			Type:  models.ObsTypeDiscovery,
+			Title: "Project B observation " + string(rune('0'+i)),
+		}
+		_, _, err := obsStore.StoreObservation(ctx, "session-1", "project-b", obs, 1, 100)
+		require.NoError(t, err)
+	}
+
+	// Create a global observation
+	globalObs := &models.ParsedObservation{
+		Type:     models.ObsTypeDiscovery,
+		Title:    "Global observation",
+		Concepts: []string{"best-practice"}, // Makes it global
+	}
+	_, _, err := obsStore.StoreObservation(ctx, "session-1", "project-a", globalObs, 1, 100)
+	require.NoError(t, err)
+
+	// Count for project-a includes its own + global
+	count, err := obsStore.GetObservationCount(ctx, "project-a")
+	require.NoError(t, err)
+	assert.Equal(t, 6, count) // 5 project-a + 1 global
+
+	// Count for project-b includes its own + global
+	count, err = obsStore.GetObservationCount(ctx, "project-b")
+	require.NoError(t, err)
+	assert.Equal(t, 4, count) // 3 project-b + 1 global
+}
+
+func TestObservationStore_CleanupOldObservations(t *testing.T) {
+	obsStore, _, cleanup := testObservationStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create more observations than the limit (MaxObservationsPerProject = 100)
+	// We'll create a smaller number and verify the logic works
+	for i := 0; i < 10; i++ {
+		obs := &models.ParsedObservation{
+			Type:  models.ObsTypeDiscovery,
+			Title: "Observation " + string(rune('A'+i)),
+		}
+		_, _, err := obsStore.StoreObservation(ctx, "session-1", "project-a", obs, i+1, 100)
+		require.NoError(t, err)
+		time.Sleep(time.Millisecond)
+	}
+
+	// Cleanup should return empty since we're under the limit
+	deletedIDs, err := obsStore.CleanupOldObservations(ctx, "project-a")
+	require.NoError(t, err)
+	assert.Empty(t, deletedIDs)
+
+	// All 10 should still exist
+	count, err := obsStore.GetObservationCount(ctx, "project-a")
+	require.NoError(t, err)
+	assert.Equal(t, 10, count)
+}
+
+func TestObservationStore_SetCleanupFunc(t *testing.T) {
+	obsStore, _, cleanup := testObservationStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Track cleanup calls
+	var cleanupCalledWith []int64
+	obsStore.SetCleanupFunc(func(ctx context.Context, deletedIDs []int64) {
+		cleanupCalledWith = deletedIDs
+	})
+
+	// Store an observation (should trigger cleanup, but won't delete anything under limit)
+	obs := &models.ParsedObservation{
+		Type:  models.ObsTypeDiscovery,
+		Title: "Test observation",
+	}
+	_, _, err := obsStore.StoreObservation(ctx, "session-1", "project-a", obs, 1, 100)
+	require.NoError(t, err)
+
+	// Cleanup func should not have been called since nothing was deleted
+	assert.Empty(t, cleanupCalledWith)
+}
+
+func TestExtractKeywords(t *testing.T) {
+	tests := []struct {
+		query    string
+		expected []string
+	}{
+		{
+			query:    "What is the authentication flow?",
+			expected: []string{"authentication", "flow"},
+		},
+		{
+			query:    "How does the database connection work?",
+			expected: []string{"database", "connection"},
+		},
+		{
+			query:    "JWT token validation",
+			expected: []string{"token", "validation"},
+		},
+		{
+			query:    "the a an is are", // All stop words
+			expected: nil,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.query, func(t *testing.T) {
+			keywords := extractKeywords(tt.query)
+			for _, exp := range tt.expected {
+				assert.Contains(t, keywords, exp, "should contain keyword: "+exp)
+			}
+		})
+	}
+}
+
+func TestObservationStore_GetObservationsByProjectStrict(t *testing.T) {
+	obsStore, _, cleanup := testObservationStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create project-scoped observation for project-a
+	projectObs := &models.ParsedObservation{
+		Type:      models.ObsTypeDiscovery,
+		Title:     "Project A specific",
+		Narrative: "Only for project-a",
+		Concepts:  []string{"local-concept"},
+	}
+	_, _, err := obsStore.StoreObservation(ctx, "session-1", "project-a", projectObs, 1, 100)
+	require.NoError(t, err)
+
+	// Create global observation from project-a
+	globalObs := &models.ParsedObservation{
+		Type:      models.ObsTypeDiscovery,
+		Title:     "Global security practice",
+		Narrative: "Best practice for all",
+		Concepts:  []string{"security", "best-practice"},
+	}
+	_, _, err = obsStore.StoreObservation(ctx, "session-1", "project-a", globalObs, 2, 100)
+	require.NoError(t, err)
+
+	// Create observation for project-b
+	projectBObs := &models.ParsedObservation{
+		Type:      models.ObsTypeDiscovery,
+		Title:     "Project B specific",
+		Narrative: "Only for project-b",
+	}
+	_, _, err = obsStore.StoreObservation(ctx, "session-1", "project-b", projectBObs, 1, 100)
+	require.NoError(t, err)
+
+	// GetObservationsByProjectStrict for project-a should only return project-a observations
+	// This is different from GetRecentObservations which includes globals from other projects
+	results, err := obsStore.GetObservationsByProjectStrict(ctx, "project-a", 10)
+	require.NoError(t, err)
+	assert.Len(t, results, 2) // Only observations created in project-a
+
+	// Verify both are from project-a
+	for _, obs := range results {
+		assert.Equal(t, "project-a", obs.Project)
+	}
+
+	// GetObservationsByProjectStrict for project-b should only return project-b observations
+	results, err = obsStore.GetObservationsByProjectStrict(ctx, "project-b", 10)
+	require.NoError(t, err)
+	assert.Len(t, results, 1)
+	assert.Equal(t, "Project B specific", results[0].Title.String)
+}
+
+func TestObservationStore_SearchObservationsFTS_EmptyQuery(t *testing.T) {
+	obsStore, _, cleanup := testObservationStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create an observation
+	obs := &models.ParsedObservation{
+		Type:      models.ObsTypeDiscovery,
+		Title:     "Test observation",
+		Narrative: "Some content here",
+	}
+	_, _, err := obsStore.StoreObservation(ctx, "session-1", "project-a", obs, 1, 100)
+	require.NoError(t, err)
+
+	// Search with only stop words (should return nil)
+	results, err := obsStore.SearchObservationsFTS(ctx, "the a an is are", "project-a", 10)
+	require.NoError(t, err)
+	assert.Nil(t, results)
+
+	// Search with empty query
+	results, err = obsStore.SearchObservationsFTS(ctx, "", "project-a", 10)
+	require.NoError(t, err)
+	assert.Nil(t, results)
+}
+
+func TestObservationStore_SearchObservationsFTS_DefaultLimit(t *testing.T) {
+	obsStore, _, cleanup := testObservationStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create observations
+	for i := 0; i < 15; i++ {
+		obs := &models.ParsedObservation{
+			Type:      models.ObsTypeDiscovery,
+			Title:     "Authentication test " + string(rune('A'+i)),
+			Narrative: "Auth related content",
+		}
+		_, _, err := obsStore.StoreObservation(ctx, "session-1", "project-a", obs, i+1, 100)
+		require.NoError(t, err)
+		time.Sleep(time.Millisecond)
+	}
+
+	// Search with limit 0 (should default to 10)
+	results, err := obsStore.SearchObservationsFTS(ctx, "authentication", "project-a", 0)
+	require.NoError(t, err)
+	assert.LessOrEqual(t, len(results), 10)
+
+	// Search with negative limit (should default to 10)
+	results, err = obsStore.SearchObservationsFTS(ctx, "authentication", "project-a", -5)
+	require.NoError(t, err)
+	assert.LessOrEqual(t, len(results), 10)
+}
+
+func TestObservationStore_GetAllRecentObservations(t *testing.T) {
+	obsStore, _, cleanup := testObservationStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create observations across different projects
+	projects := []string{"project-a", "project-b", "project-c"}
+	for _, proj := range projects {
+		for i := 0; i < 3; i++ {
+			obs := &models.ParsedObservation{
+				Type:      models.ObsTypeDiscovery,
+				Title:     proj + " observation " + string(rune('A'+i)),
+				Narrative: "Content for " + proj,
+			}
+			_, _, err := obsStore.StoreObservation(ctx, "session-1", proj, obs, i+1, 100)
+			require.NoError(t, err)
+			time.Sleep(time.Millisecond)
+		}
+	}
+
+	// Get all recent observations
+	results, err := obsStore.GetAllRecentObservations(ctx, 100)
+	require.NoError(t, err)
+	assert.Len(t, results, 9) // 3 projects * 3 observations
+
+	// Verify they are in descending order by epoch
+	for i := 1; i < len(results); i++ {
+		assert.GreaterOrEqual(t, results[i-1].CreatedAtEpoch, results[i].CreatedAtEpoch)
+	}
+
+	// Test with limit
+	results, err = obsStore.GetAllRecentObservations(ctx, 5)
+	require.NoError(t, err)
+	assert.Len(t, results, 5)
+}

internal/db/sqlite/prompt.go

@@ -0,0 +1,249 @@
+// Package sqlite provides SQLite database operations for claude-mnemonic.
+package sqlite
+
+import (
+	"context"
+	"time"
+
+	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
+)
+
+// PromptCleanupFunc is a callback for when prompts are cleaned up.
+// Receives the IDs of deleted prompts for downstream cleanup (e.g., vector DB).
+type PromptCleanupFunc func(ctx context.Context, deletedIDs []int64)
+
+// MaxPromptsGlobal is the hard limit of prompts across all projects.
+const MaxPromptsGlobal = 500
+
+// PromptStore provides user prompt-related database operations.
+type PromptStore struct {
+	store       *Store
+	cleanupFunc PromptCleanupFunc
+}
+
+// NewPromptStore creates a new prompt store.
+func NewPromptStore(store *Store) *PromptStore {
+	return &PromptStore{store: store}
+}
+
+// SetCleanupFunc sets the callback for when prompts are deleted during cleanup.
+func (s *PromptStore) SetCleanupFunc(fn PromptCleanupFunc) {
+	s.cleanupFunc = fn
+}
+
+// SaveUserPromptWithMatches saves a user prompt with matched observation count.
+// Uses INSERT OR IGNORE to be idempotent - duplicate (session, prompt_number) pairs are silently ignored.
+// This prevents duplicate prompts when the user-prompt hook fires multiple times.
+func (s *PromptStore) SaveUserPromptWithMatches(ctx context.Context, claudeSessionID string, promptNumber int, promptText string, matchedObservations int) (int64, error) {
+	now := time.Now()
+
+	// Use INSERT OR IGNORE for idempotency - if (claude_session_id, prompt_number) already exists,
+	// the insert is silently ignored. This handles concurrent/duplicate hook invocations.
+	const query = `
+		INSERT OR IGNORE INTO user_prompts
+		(claude_session_id, prompt_number, prompt_text, matched_observations, created_at, created_at_epoch)
+		VALUES (?, ?, ?, ?, ?, ?)
+	`
+
+	result, err := s.store.ExecContext(ctx, query,
+		claudeSessionID, promptNumber, promptText, matchedObservations,
+		now.Format(time.RFC3339), now.UnixMilli(),
+	)
+	if err != nil {
+		return 0, err
+	}
+
+	id, _ := result.LastInsertId()
+
+	// If id is 0, the insert was ignored (duplicate) - fetch the existing ID
+	if id == 0 {
+		const selectQuery = `SELECT id FROM user_prompts WHERE claude_session_id = ? AND prompt_number = ?`
+		row := s.store.QueryRowContext(ctx, selectQuery, claudeSessionID, promptNumber)
+		if err := row.Scan(&id); err != nil {
+			return 0, err
+		}
+		// Return existing ID without triggering cleanup (already handled when first inserted)
+		return id, nil
+	}
+
+	// Cleanup old prompts beyond the global limit (async to not block handler)
+	go func() {
+		cleanupCtx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+		defer cancel()
+		deletedIDs, _ := s.CleanupOldPrompts(cleanupCtx)
+		if len(deletedIDs) > 0 && s.cleanupFunc != nil {
+			s.cleanupFunc(cleanupCtx, deletedIDs)
+		}
+	}()
+
+	return id, nil
+}
+
+// CleanupOldPrompts deletes prompts beyond the global limit.
+// Keeps the most recent MaxPromptsGlobal prompts.
+// Returns the IDs of deleted prompts for downstream cleanup (e.g., vector DB).
+func (s *PromptStore) CleanupOldPrompts(ctx context.Context) ([]int64, error) {
+	// First, find IDs that will be deleted
+	const selectQuery = `
+		SELECT id FROM user_prompts
+		WHERE id NOT IN (
+			SELECT id FROM user_prompts
+			ORDER BY created_at_epoch DESC
+			LIMIT ?
+		)
+	`
+
+	rows, err := s.store.QueryContext(ctx, selectQuery, MaxPromptsGlobal)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var toDelete []int64
+	for rows.Next() {
+		var id int64
+		if err := rows.Scan(&id); err != nil {
+			return nil, err
+		}
+		toDelete = append(toDelete, id)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	if len(toDelete) == 0 {
+		return nil, nil
+	}
+
+	// Delete the prompts
+	const deleteQuery = `
+		DELETE FROM user_prompts
+		WHERE id NOT IN (
+			SELECT id FROM user_prompts
+			ORDER BY created_at_epoch DESC
+			LIMIT ?
+		)
+	`
+
+	_, err = s.store.ExecContext(ctx, deleteQuery, MaxPromptsGlobal)
+	if err != nil {
+		return nil, err
+	}
+
+	return toDelete, nil
+}
+
+// GetPromptsByIDs retrieves user prompts by a list of IDs.
+func (s *PromptStore) GetPromptsByIDs(ctx context.Context, ids []int64, orderBy string, limit int) ([]*models.UserPromptWithSession, error) {
+	if len(ids) == 0 {
+		return nil, nil
+	}
+
+	// Build query with placeholders
+	// #nosec G202 -- query uses parameterized placeholders, not user input
+	query := `
+		SELECT up.id, up.claude_session_id, up.prompt_number, up.prompt_text,
+		       COALESCE(up.matched_observations, 0) as matched_observations,
+		       up.created_at, up.created_at_epoch,
+		       COALESCE(s.project, '') as project,
+		       COALESCE(s.sdk_session_id, '') as sdk_session_id
+		FROM user_prompts up
+		LEFT JOIN sdk_sessions s ON up.claude_session_id = s.claude_session_id
+		WHERE up.id IN (?` + repeatPlaceholders(len(ids)-1) + `)
+		ORDER BY up.created_at_epoch `
+
+	if orderBy == "date_asc" {
+		query += "ASC"
+	} else {
+		query += "DESC"
+	}
+
+	if limit > 0 {
+		query += " LIMIT ?"
+	}
+
+	args := int64SliceToInterface(ids)
+	if limit > 0 {
+		args = append(args, limit)
+	}
+
+	rows, err := s.store.db.QueryContext(ctx, query, args...)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	return scanPromptWithSessionRows(rows)
+}
+
+// GetAllRecentUserPrompts retrieves recent user prompts across all sessions.
+func (s *PromptStore) GetAllRecentUserPrompts(ctx context.Context, limit int) ([]*models.UserPromptWithSession, error) {
+	const query = `
+		SELECT up.id, up.claude_session_id, up.prompt_number, up.prompt_text,
+		       COALESCE(up.matched_observations, 0) as matched_observations,
+		       up.created_at, up.created_at_epoch,
+		       COALESCE(s.project, '') as project,
+		       COALESCE(s.sdk_session_id, '') as sdk_session_id
+		FROM user_prompts up
+		LEFT JOIN sdk_sessions s ON up.claude_session_id = s.claude_session_id
+		ORDER BY up.created_at_epoch DESC
+		LIMIT ?
+	`
+
+	rows, err := s.store.QueryContext(ctx, query, limit)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	return scanPromptWithSessionRows(rows)
+}
+
+// FindRecentPromptByText finds a prompt with the same text for a session within the last few seconds.
+// This is used to detect duplicate hook invocations.
+// Returns (promptID, promptNumber, found).
+func (s *PromptStore) FindRecentPromptByText(ctx context.Context, claudeSessionID, promptText string, withinSeconds int) (int64, int, bool) {
+	// Look for an existing prompt with the same text within the time window
+	// This catches duplicate hook invocations that happen in quick succession
+	const query = `
+		SELECT id, prompt_number FROM user_prompts
+		WHERE claude_session_id = ? AND prompt_text = ?
+		AND created_at_epoch > ?
+		ORDER BY created_at_epoch DESC
+		LIMIT 1
+	`
+
+	cutoff := time.Now().Add(-time.Duration(withinSeconds) * time.Second).UnixMilli()
+
+	var id int64
+	var promptNumber int
+	err := s.store.QueryRowContext(ctx, query, claudeSessionID, promptText, cutoff).Scan(&id, &promptNumber)
+	if err != nil {
+		return 0, 0, false
+	}
+	return id, promptNumber, true
+}
+
+// GetRecentUserPromptsByProject retrieves recent user prompts for a specific project.
+func (s *PromptStore) GetRecentUserPromptsByProject(ctx context.Context, project string, limit int) ([]*models.UserPromptWithSession, error) {
+	const query = `
+		SELECT up.id, up.claude_session_id, up.prompt_number, up.prompt_text,
+		       COALESCE(up.matched_observations, 0) as matched_observations,
+		       up.created_at, up.created_at_epoch,
+		       COALESCE(s.project, '') as project,
+		       COALESCE(s.sdk_session_id, '') as sdk_session_id
+		FROM user_prompts up
+		LEFT JOIN sdk_sessions s ON up.claude_session_id = s.claude_session_id
+		WHERE s.project = ?
+		ORDER BY up.created_at_epoch DESC
+		LIMIT ?
+	`
+
+	rows, err := s.store.QueryContext(ctx, query, project, limit)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	return scanPromptWithSessionRows(rows)
+}

internal/db/sqlite/prompt_test.go

@@ -0,0 +1,289 @@
+package sqlite
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func testPromptStore(t *testing.T) (*PromptStore, *Store, func()) {
+	t.Helper()
+
+	db, _, cleanup := testDB(t)
+	createAllTables(t, db)
+
+	store := newStoreFromDB(db)
+	promptStore := NewPromptStore(store)
+
+	return promptStore, store, cleanup
+}
+
+func TestPromptStore_SaveUserPromptWithMatches(t *testing.T) {
+	promptStore, store, cleanup := testPromptStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create a session first
+	seedSession(t, storeDB(store), "claude-1", "sdk-1", "test-project")
+
+	// Save a prompt
+	id, err := promptStore.SaveUserPromptWithMatches(ctx, "claude-1", 1, "Help me fix this bug", 5)
+	require.NoError(t, err)
+	assert.Greater(t, id, int64(0))
+
+	// Verify it was saved
+	var count int
+	err = storeDB(store).QueryRow("SELECT COUNT(*) FROM user_prompts WHERE id = ?", id).Scan(&count)
+	require.NoError(t, err)
+	assert.Equal(t, 1, count)
+}
+
+func TestPromptStore_GetAllRecentUserPrompts(t *testing.T) {
+	promptStore, store, cleanup := testPromptStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create a session
+	seedSession(t, storeDB(store), "claude-1", "sdk-1", "test-project")
+
+	// Save multiple prompts
+	for i := 1; i <= 5; i++ {
+		_, err := promptStore.SaveUserPromptWithMatches(ctx, "claude-1", i, "Prompt "+string(rune('A'+i-1)), i)
+		require.NoError(t, err)
+		time.Sleep(time.Millisecond) // Ensure different timestamps
+	}
+
+	// Get recent prompts
+	prompts, err := promptStore.GetAllRecentUserPrompts(ctx, 3)
+	require.NoError(t, err)
+	assert.Len(t, prompts, 3)
+
+	// Should be in descending order (most recent first)
+	assert.Equal(t, 5, prompts[0].PromptNumber)
+}
+
+func TestPromptStore_GetRecentUserPromptsByProject(t *testing.T) {
+	promptStore, store, cleanup := testPromptStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create sessions for different projects
+	seedSession(t, storeDB(store), "claude-1", "sdk-1", "project-a")
+	seedSession(t, storeDB(store), "claude-2", "sdk-2", "project-b")
+
+	// Save prompts for both projects
+	for i := 1; i <= 3; i++ {
+		_, err := promptStore.SaveUserPromptWithMatches(ctx, "claude-1", i, "Project A prompt", 0)
+		require.NoError(t, err)
+	}
+	for i := 1; i <= 2; i++ {
+		_, err := promptStore.SaveUserPromptWithMatches(ctx, "claude-2", i, "Project B prompt", 0)
+		require.NoError(t, err)
+	}
+
+	// Get prompts for project-a
+	prompts, err := promptStore.GetRecentUserPromptsByProject(ctx, "project-a", 10)
+	require.NoError(t, err)
+	assert.Len(t, prompts, 3)
+
+	// Get prompts for project-b
+	prompts, err = promptStore.GetRecentUserPromptsByProject(ctx, "project-b", 10)
+	require.NoError(t, err)
+	assert.Len(t, prompts, 2)
+}
+
+func TestPromptStore_CleanupOldPrompts(t *testing.T) {
+	promptStore, store, cleanup := testPromptStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create a session
+	seedSession(t, storeDB(store), "claude-1", "sdk-1", "test-project")
+
+	// Save more prompts than the limit
+	// Note: MaxPromptsGlobal is 500, but we'll test with a smaller number
+	// by directly calling CleanupOldPrompts
+	for i := 1; i <= 10; i++ {
+		_, err := storeDB(store).Exec(`
+			INSERT INTO user_prompts (claude_session_id, prompt_number, prompt_text, created_at, created_at_epoch)
+			VALUES (?, ?, ?, datetime('now'), ?)
+		`, "claude-1", i, "Prompt "+string(rune('A'+i-1)), time.Now().UnixMilli()+int64(i))
+		require.NoError(t, err)
+	}
+
+	// Verify we have 10 prompts
+	var count int
+	err := storeDB(store).QueryRow("SELECT COUNT(*) FROM user_prompts").Scan(&count)
+	require.NoError(t, err)
+	assert.Equal(t, 10, count)
+
+	// Cleanup should return empty since we're under the limit
+	deletedIDs, err := promptStore.CleanupOldPrompts(ctx)
+	require.NoError(t, err)
+	assert.Empty(t, deletedIDs)
+}
+
+func TestPromptStore_SetCleanupFunc(t *testing.T) {
+	promptStore, store, cleanup := testPromptStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Track cleanup calls
+	var cleanupCalledWith []int64
+	promptStore.SetCleanupFunc(func(ctx context.Context, deletedIDs []int64) {
+		cleanupCalledWith = deletedIDs
+	})
+
+	// Create a session
+	seedSession(t, storeDB(store), "claude-1", "sdk-1", "test-project")
+
+	// Save a prompt (should trigger cleanup, but won't delete anything under limit)
+	_, err := promptStore.SaveUserPromptWithMatches(ctx, "claude-1", 1, "Test prompt", 0)
+	require.NoError(t, err)
+
+	// Cleanup func should not have been called since nothing was deleted
+	assert.Empty(t, cleanupCalledWith)
+}
+
+func TestPromptStore_GetPromptsByIDs(t *testing.T) {
+	promptStore, store, cleanup := testPromptStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create a session
+	seedSession(t, storeDB(store), "claude-1", "sdk-1", "test-project")
+
+	// Save some prompts and collect their IDs
+	var ids []int64
+	for i := 1; i <= 5; i++ {
+		id, err := promptStore.SaveUserPromptWithMatches(ctx, "claude-1", i, "Prompt "+string(rune('A'+i-1)), 0)
+		require.NoError(t, err)
+		ids = append(ids, id)
+		time.Sleep(time.Millisecond)
+	}
+
+	// Get specific prompts by ID
+	prompts, err := promptStore.GetPromptsByIDs(ctx, ids[:3], "date_desc", 10)
+	require.NoError(t, err)
+	assert.Len(t, prompts, 3)
+
+	// Test with ascending order
+	prompts, err = promptStore.GetPromptsByIDs(ctx, ids, "date_asc", 2)
+	require.NoError(t, err)
+	assert.Len(t, prompts, 2)
+	assert.Equal(t, 1, prompts[0].PromptNumber)
+}
+
+func TestPromptStore_GetPromptsByIDs_EmptyInput(t *testing.T) {
+	promptStore, _, cleanup := testPromptStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Empty IDs should return nil
+	prompts, err := promptStore.GetPromptsByIDs(ctx, []int64{}, "date_desc", 10)
+	require.NoError(t, err)
+	assert.Nil(t, prompts)
+}
+
+func TestPromptStore_FindRecentPromptByText(t *testing.T) {
+	promptStore, store, cleanup := testPromptStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create a session
+	seedSession(t, storeDB(store), "claude-1", "sdk-1", "test-project")
+
+	// Save a prompt
+	_, err := promptStore.SaveUserPromptWithMatches(ctx, "claude-1", 1, "Help me fix this bug in the code", 0)
+	require.NoError(t, err)
+
+	// Find the prompt by text - returns (id, promptNumber, found)
+	id, promptNum, found := promptStore.FindRecentPromptByText(ctx, "claude-1", "Help me fix this bug in the code", 60)
+	assert.True(t, found, "should find the exact prompt text")
+	assert.Greater(t, id, int64(0))
+	assert.Equal(t, 1, promptNum)
+
+	// Try to find non-existent prompt
+	_, _, found = promptStore.FindRecentPromptByText(ctx, "claude-1", "This prompt does not exist", 60)
+	assert.False(t, found, "should not find non-existent prompt")
+
+	// Try with different session
+	_, _, found = promptStore.FindRecentPromptByText(ctx, "claude-2", "Help me fix this bug in the code", 60)
+	assert.False(t, found, "should not find prompt for different session")
+}
+
+func TestPromptStore_FindRecentPromptByText_WindowSeconds(t *testing.T) {
+	promptStore, store, cleanup := testPromptStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create a session
+	seedSession(t, storeDB(store), "claude-1", "sdk-1", "test-project")
+
+	// Save a prompt with an old timestamp
+	oldEpoch := time.Now().Add(-2 * time.Hour).UnixMilli()
+	_, err := storeDB(store).Exec(`
+		INSERT INTO user_prompts (claude_session_id, prompt_number, prompt_text, created_at, created_at_epoch)
+		VALUES (?, ?, ?, datetime('now'), ?)
+	`, "claude-1", 1, "Old prompt text", oldEpoch)
+	require.NoError(t, err)
+
+	// Search within last hour - should not find old prompt
+	_, _, found := promptStore.FindRecentPromptByText(ctx, "claude-1", "Old prompt text", 3600)
+	assert.False(t, found, "should not find prompt outside window")
+
+	// Search within last 3 hours - should find old prompt
+	_, _, found = promptStore.FindRecentPromptByText(ctx, "claude-1", "Old prompt text", 3*3600)
+	assert.True(t, found, "should find prompt within extended window")
+}
+
+func TestPromptStore_SaveMultiplePrompts(t *testing.T) {
+	promptStore, store, cleanup := testPromptStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create sessions
+	seedSession(t, storeDB(store), "claude-1", "sdk-1", "project-x")
+	seedSession(t, storeDB(store), "claude-2", "sdk-2", "project-y")
+
+	tests := []struct {
+		claudeSessionID string
+		promptNum       int
+		text            string
+		matches         int
+	}{
+		{"claude-1", 1, "First prompt", 5},
+		{"claude-1", 2, "Second prompt", 3},
+		{"claude-2", 1, "Third prompt", 0},
+		{"claude-1", 3, "Fourth prompt", 10},
+	}
+
+	for _, tt := range tests {
+		id, err := promptStore.SaveUserPromptWithMatches(ctx, tt.claudeSessionID, tt.promptNum, tt.text, tt.matches)
+		require.NoError(t, err)
+		assert.Greater(t, id, int64(0))
+	}
+
+	// Verify counts
+	var count int
+	err := storeDB(store).QueryRow("SELECT COUNT(*) FROM user_prompts WHERE claude_session_id = 'claude-1'").Scan(&count)
+	require.NoError(t, err)
+	assert.Equal(t, 3, count)
+
+	err = storeDB(store).QueryRow("SELECT COUNT(*) FROM user_prompts WHERE claude_session_id = 'claude-2'").Scan(&count)
+	require.NoError(t, err)
+	assert.Equal(t, 1, count)
+}

internal/db/sqlite/session.go

@@ -0,0 +1,184 @@
+// Package sqlite provides SQLite database operations for claude-mnemonic.
+package sqlite
+
+import (
+	"context"
+	"database/sql"
+	"time"
+
+	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
+)
+
+// SessionStore provides session-related database operations.
+type SessionStore struct {
+	store *Store
+}
+
+// NewSessionStore creates a new session store.
+func NewSessionStore(store *Store) *SessionStore {
+	return &SessionStore{store: store}
+}
+
+// CreateSDKSession creates a new SDK session (idempotent - returns existing ID if exists).
+// This is the KEY to how claude-mnemonic stays unified across hooks.
+func (s *SessionStore) CreateSDKSession(ctx context.Context, claudeSessionID, project, userPrompt string) (int64, error) {
+	now := time.Now()
+
+	// CRITICAL: INSERT OR IGNORE makes this idempotent
+	const query = `
+		INSERT OR IGNORE INTO sdk_sessions
+		(claude_session_id, sdk_session_id, project, user_prompt, started_at, started_at_epoch, status)
+		VALUES (?, ?, ?, ?, ?, ?, 'active')
+	`
+
+	result, err := s.store.ExecContext(ctx, query,
+		claudeSessionID, claudeSessionID, project, userPrompt,
+		now.Format(time.RFC3339), now.UnixMilli(),
+	)
+	if err != nil {
+		return 0, err
+	}
+
+	// Check if insert happened
+	rowsAffected, _ := result.RowsAffected()
+	if rowsAffected == 0 {
+		// Session exists - UPDATE project and user_prompt if we have non-empty values
+		if project != "" {
+			const updateQuery = `
+				UPDATE sdk_sessions
+				SET project = ?, user_prompt = ?
+				WHERE claude_session_id = ?
+			`
+			_, _ = s.store.ExecContext(ctx, updateQuery, project, userPrompt, claudeSessionID)
+		}
+
+		// Fetch existing ID
+		var id int64
+		const selectQuery = `SELECT id FROM sdk_sessions WHERE claude_session_id = ? LIMIT 1`
+		err := s.store.QueryRowContext(ctx, selectQuery, claudeSessionID).Scan(&id)
+		return id, err
+	}
+
+	id, _ := result.LastInsertId()
+	return id, nil
+}
+
+// GetSessionByID retrieves a session by its database ID.
+func (s *SessionStore) GetSessionByID(ctx context.Context, id int64) (*models.SDKSession, error) {
+	const query = `
+		SELECT id, claude_session_id, sdk_session_id, project, user_prompt,
+		       worker_port, prompt_counter, status, started_at, started_at_epoch,
+		       completed_at, completed_at_epoch
+		FROM sdk_sessions
+		WHERE id = ?
+		LIMIT 1
+	`
+
+	var sess models.SDKSession
+	err := s.store.QueryRowContext(ctx, query, id).Scan(
+		&sess.ID, &sess.ClaudeSessionID, &sess.SDKSessionID, &sess.Project, &sess.UserPrompt,
+		&sess.WorkerPort, &sess.PromptCounter, &sess.Status, &sess.StartedAt, &sess.StartedAtEpoch,
+		&sess.CompletedAt, &sess.CompletedAtEpoch,
+	)
+	if err == sql.ErrNoRows {
+		return nil, nil
+	}
+	if err != nil {
+		return nil, err
+	}
+	return &sess, nil
+}
+
+// FindAnySDKSession finds any session by Claude session ID (any status).
+func (s *SessionStore) FindAnySDKSession(ctx context.Context, claudeSessionID string) (*models.SDKSession, error) {
+	const query = `
+		SELECT id, claude_session_id, sdk_session_id, project, user_prompt,
+		       worker_port, prompt_counter, status, started_at, started_at_epoch,
+		       completed_at, completed_at_epoch
+		FROM sdk_sessions
+		WHERE claude_session_id = ?
+		LIMIT 1
+	`
+
+	var sess models.SDKSession
+	err := s.store.QueryRowContext(ctx, query, claudeSessionID).Scan(
+		&sess.ID, &sess.ClaudeSessionID, &sess.SDKSessionID, &sess.Project, &sess.UserPrompt,
+		&sess.WorkerPort, &sess.PromptCounter, &sess.Status, &sess.StartedAt, &sess.StartedAtEpoch,
+		&sess.CompletedAt, &sess.CompletedAtEpoch,
+	)
+	if err == sql.ErrNoRows {
+		return nil, nil
+	}
+	if err != nil {
+		return nil, err
+	}
+	return &sess, nil
+}
+
+// IncrementPromptCounter increments the prompt counter and returns the new value.
+func (s *SessionStore) IncrementPromptCounter(ctx context.Context, id int64) (int, error) {
+	const updateQuery = `
+		UPDATE sdk_sessions
+		SET prompt_counter = COALESCE(prompt_counter, 0) + 1
+		WHERE id = ?
+	`
+	if _, err := s.store.ExecContext(ctx, updateQuery, id); err != nil {
+		return 0, err
+	}
+
+	const selectQuery = `SELECT prompt_counter FROM sdk_sessions WHERE id = ?`
+	var counter int
+	err := s.store.QueryRowContext(ctx, selectQuery, id).Scan(&counter)
+	return counter, err
+}
+
+// GetPromptCounter returns the current prompt counter for a session.
+func (s *SessionStore) GetPromptCounter(ctx context.Context, id int64) (int, error) {
+	const query = `SELECT COALESCE(prompt_counter, 0) FROM sdk_sessions WHERE id = ?`
+	var counter int
+	err := s.store.QueryRowContext(ctx, query, id).Scan(&counter)
+	return counter, err
+}
+
+// GetSessionsToday returns the count of sessions started today.
+func (s *SessionStore) GetSessionsToday(ctx context.Context) (int, error) {
+	// Get start of today in milliseconds
+	now := time.Now()
+	startOfDay := time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, now.Location())
+	startEpoch := startOfDay.UnixMilli()
+
+	const query = `SELECT COUNT(*) FROM sdk_sessions WHERE started_at_epoch >= ?`
+
+	var count int
+	err := s.store.QueryRowContext(ctx, query, startEpoch).Scan(&count)
+	if err != nil {
+		return 0, err
+	}
+	return count, nil
+}
+
+// GetAllProjects returns all unique project names.
+func (s *SessionStore) GetAllProjects(ctx context.Context) ([]string, error) {
+	const query = `
+		SELECT DISTINCT project
+		FROM sdk_sessions
+		WHERE project IS NOT NULL AND project != ''
+		ORDER BY project ASC
+	`
+
+	rows, err := s.store.QueryContext(ctx, query)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var projects []string
+	for rows.Next() {
+		var project string
+		if err := rows.Scan(&project); err != nil {
+			return nil, err
+		}
+		projects = append(projects, project)
+	}
+	return projects, rows.Err()
+}

internal/db/sqlite/session_test.go

@@ -0,0 +1,449 @@
+package sqlite
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+func testSessionStore(t *testing.T) (*SessionStore, *Store, func()) {
+	t.Helper()
+
+	db, _, cleanup := testDB(t)
+	createBaseTables(t, db) // Use base tables without FTS5 for session tests
+
+	store := newStoreFromDB(db)
+	sessionStore := NewSessionStore(store)
+
+	return sessionStore, store, cleanup
+}
+
+// SessionStoreSuite is a test suite for SessionStore operations.
+type SessionStoreSuite struct {
+	suite.Suite
+	sessionStore *SessionStore
+	store        *Store
+	cleanup      func()
+}
+
+func (s *SessionStoreSuite) SetupTest() {
+	s.sessionStore, s.store, s.cleanup = testSessionStore(s.T())
+}
+
+func (s *SessionStoreSuite) TearDownTest() {
+	if s.cleanup != nil {
+		s.cleanup()
+	}
+}
+
+func TestSessionStoreSuite(t *testing.T) {
+	suite.Run(t, new(SessionStoreSuite))
+}
+
+// TestCreateSDKSession_TableDriven tests session creation with various scenarios.
+func (s *SessionStoreSuite) TestCreateSDKSession_TableDriven() {
+	ctx := context.Background()
+
+	tests := []struct {
+		name            string
+		claudeSessionID string
+		project         string
+		userPrompt      string
+		wantErr         bool
+		wantID          bool
+	}{
+		{
+			name:            "basic session creation",
+			claudeSessionID: "claude-basic",
+			project:         "project-a",
+			userPrompt:      "hello world",
+			wantErr:         false,
+			wantID:          true,
+		},
+		{
+			name:            "empty user prompt",
+			claudeSessionID: "claude-noprompt",
+			project:         "project-b",
+			userPrompt:      "",
+			wantErr:         false,
+			wantID:          true,
+		},
+		{
+			name:            "long project name",
+			claudeSessionID: "claude-longproj",
+			project:         "/Users/test/Documents/very/long/path/to/some/project/directory",
+			userPrompt:      "test",
+			wantErr:         false,
+			wantID:          true,
+		},
+		{
+			name:            "unicode project name",
+			claudeSessionID: "claude-unicode",
+			project:         "项目名称-プロジェクト",
+			userPrompt:      "测试 テスト",
+			wantErr:         false,
+			wantID:          true,
+		},
+		{
+			name:            "special characters in prompt",
+			claudeSessionID: "claude-special",
+			project:         "project-special",
+			userPrompt:      "Fix the bug in file.go:123 with \"quotes\" and 'apostrophes'",
+			wantErr:         false,
+			wantID:          true,
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			id, err := s.sessionStore.CreateSDKSession(ctx, tt.claudeSessionID, tt.project, tt.userPrompt)
+			if tt.wantErr {
+				s.Error(err)
+			} else {
+				s.NoError(err)
+				if tt.wantID {
+					s.Greater(id, int64(0))
+				}
+
+				// Verify created session
+				sess, err := s.sessionStore.GetSessionByID(ctx, id)
+				s.NoError(err)
+				s.NotNil(sess)
+				s.Equal(tt.claudeSessionID, sess.ClaudeSessionID)
+				s.Equal(tt.project, sess.Project)
+				s.Equal(models.SessionStatusActive, sess.Status)
+			}
+		})
+	}
+}
+
+// TestIdempotentSession tests that session creation is idempotent.
+func (s *SessionStoreSuite) TestIdempotentSession() {
+	ctx := context.Background()
+
+	// Create initial session
+	id1, err := s.sessionStore.CreateSDKSession(ctx, "claude-idem", "project-1", "prompt-1")
+	s.NoError(err)
+	s.Greater(id1, int64(0))
+
+	// Create with same claude_session_id - should return same ID
+	id2, err := s.sessionStore.CreateSDKSession(ctx, "claude-idem", "project-2", "prompt-2")
+	s.NoError(err)
+	s.Equal(id1, id2)
+
+	// Verify project was updated
+	sess, err := s.sessionStore.GetSessionByID(ctx, id1)
+	s.NoError(err)
+	s.Equal("project-2", sess.Project)
+}
+
+// TestPromptCounterOperations tests prompt counter increment and retrieval.
+func (s *SessionStoreSuite) TestPromptCounterOperations() {
+	ctx := context.Background()
+
+	tests := []struct {
+		name          string
+		increments    int
+		expectedCount int
+	}{
+		{
+			name:          "no increments",
+			increments:    0,
+			expectedCount: 0,
+		},
+		{
+			name:          "single increment",
+			increments:    1,
+			expectedCount: 1,
+		},
+		{
+			name:          "multiple increments",
+			increments:    5,
+			expectedCount: 5,
+		},
+		{
+			name:          "many increments",
+			increments:    100,
+			expectedCount: 100,
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			// Create fresh session for each test
+			id, err := s.sessionStore.CreateSDKSession(ctx, "claude-counter-"+tt.name, "project", "")
+			s.NoError(err)
+
+			// Increment specified number of times
+			var lastCount int
+			for i := 0; i < tt.increments; i++ {
+				lastCount, err = s.sessionStore.IncrementPromptCounter(ctx, id)
+				s.NoError(err)
+			}
+
+			// Get final count
+			finalCount, err := s.sessionStore.GetPromptCounter(ctx, id)
+			s.NoError(err)
+			s.Equal(tt.expectedCount, finalCount)
+
+			if tt.increments > 0 {
+				s.Equal(tt.expectedCount, lastCount)
+			}
+		})
+	}
+}
+
+// TestFindAnySDKSession tests session lookup scenarios.
+func (s *SessionStoreSuite) TestFindAnySDKSession_Scenarios() {
+	ctx := context.Background()
+
+	// Create test sessions
+	_, err := s.sessionStore.CreateSDKSession(ctx, "session-find-1", "project-a", "")
+	s.NoError(err)
+	_, err = s.sessionStore.CreateSDKSession(ctx, "session-find-2", "project-b", "")
+	s.NoError(err)
+
+	tests := []struct {
+		name            string
+		claudeSessionID string
+		wantFound       bool
+		wantProject     string
+	}{
+		{
+			name:            "find existing session 1",
+			claudeSessionID: "session-find-1",
+			wantFound:       true,
+			wantProject:     "project-a",
+		},
+		{
+			name:            "find existing session 2",
+			claudeSessionID: "session-find-2",
+			wantFound:       true,
+			wantProject:     "project-b",
+		},
+		{
+			name:            "find non-existent session",
+			claudeSessionID: "session-nonexistent",
+			wantFound:       false,
+		},
+		{
+			name:            "find with empty string",
+			claudeSessionID: "",
+			wantFound:       false,
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			sess, err := s.sessionStore.FindAnySDKSession(ctx, tt.claudeSessionID)
+			s.NoError(err) // FindAnySDKSession returns nil,nil for not found
+
+			if tt.wantFound {
+				s.NotNil(sess)
+				s.Equal(tt.wantProject, sess.Project)
+			} else {
+				s.Nil(sess)
+			}
+		})
+	}
+}
+
+func TestSessionStore_CreateSDKSession(t *testing.T) {
+	sessionStore, _, cleanup := testSessionStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create a new session
+	id, err := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "initial prompt")
+	require.NoError(t, err)
+	assert.Greater(t, id, int64(0))
+
+	// Retrieve and verify
+	sess, err := sessionStore.GetSessionByID(ctx, id)
+	require.NoError(t, err)
+	require.NotNil(t, sess)
+	assert.Equal(t, "claude-1", sess.ClaudeSessionID)
+	assert.Equal(t, "test-project", sess.Project)
+	assert.Equal(t, models.SessionStatusActive, sess.Status)
+}
+
+func TestSessionStore_CreateSDKSession_Idempotent(t *testing.T) {
+	sessionStore, _, cleanup := testSessionStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create first session
+	id1, err := sessionStore.CreateSDKSession(ctx, "claude-1", "project-a", "prompt 1")
+	require.NoError(t, err)
+
+	// Create again with same claude_session_id but different project
+	id2, err := sessionStore.CreateSDKSession(ctx, "claude-1", "project-b", "prompt 2")
+	require.NoError(t, err)
+
+	// Should return same ID (idempotent)
+	assert.Equal(t, id1, id2)
+
+	// Should have updated project to project-b
+	sess, err := sessionStore.GetSessionByID(ctx, id1)
+	require.NoError(t, err)
+	assert.Equal(t, "project-b", sess.Project)
+}
+
+func TestSessionStore_FindAnySDKSession(t *testing.T) {
+	sessionStore, _, cleanup := testSessionStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create a session
+	_, err := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
+	require.NoError(t, err)
+
+	// Find it
+	sess, err := sessionStore.FindAnySDKSession(ctx, "claude-1")
+	require.NoError(t, err)
+	require.NotNil(t, sess)
+	assert.Equal(t, "claude-1", sess.ClaudeSessionID)
+
+	// Try to find non-existent
+	sess, err = sessionStore.FindAnySDKSession(ctx, "claude-nonexistent")
+	require.NoError(t, err)
+	assert.Nil(t, sess)
+}
+
+func TestSessionStore_IncrementPromptCounter(t *testing.T) {
+	sessionStore, _, cleanup := testSessionStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create a session
+	id, err := sessionStore.CreateSDKSession(ctx, "claude-1", "test-project", "")
+	require.NoError(t, err)
+
+	// Initial counter should be 0
+	counter, err := sessionStore.GetPromptCounter(ctx, id)
+	require.NoError(t, err)
+	assert.Equal(t, 0, counter)
+
+	// Increment
+	counter, err = sessionStore.IncrementPromptCounter(ctx, id)
+	require.NoError(t, err)
+	assert.Equal(t, 1, counter)
+
+	// Increment again
+	counter, err = sessionStore.IncrementPromptCounter(ctx, id)
+	require.NoError(t, err)
+	assert.Equal(t, 2, counter)
+
+	// Verify via GetPromptCounter
+	counter, err = sessionStore.GetPromptCounter(ctx, id)
+	require.NoError(t, err)
+	assert.Equal(t, 2, counter)
+}
+
+func TestSessionStore_GetSessionsToday(t *testing.T) {
+	sessionStore, _, cleanup := testSessionStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Initially no sessions today
+	count, err := sessionStore.GetSessionsToday(ctx)
+	require.NoError(t, err)
+	assert.Equal(t, 0, count)
+
+	// Create some sessions
+	_, err = sessionStore.CreateSDKSession(ctx, "claude-1", "project-a", "")
+	require.NoError(t, err)
+	_, err = sessionStore.CreateSDKSession(ctx, "claude-2", "project-b", "")
+	require.NoError(t, err)
+	_, err = sessionStore.CreateSDKSession(ctx, "claude-3", "project-c", "")
+	require.NoError(t, err)
+
+	// Should have 3 sessions today
+	count, err = sessionStore.GetSessionsToday(ctx)
+	require.NoError(t, err)
+	assert.Equal(t, 3, count)
+}
+
+func TestSessionStore_GetAllProjects(t *testing.T) {
+	sessionStore, _, cleanup := testSessionStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create sessions for different projects
+	_, err := sessionStore.CreateSDKSession(ctx, "claude-1", "alpha-project", "")
+	require.NoError(t, err)
+	_, err = sessionStore.CreateSDKSession(ctx, "claude-2", "beta-project", "")
+	require.NoError(t, err)
+	_, err = sessionStore.CreateSDKSession(ctx, "claude-3", "alpha-project", "") // duplicate
+	require.NoError(t, err)
+	_, err = sessionStore.CreateSDKSession(ctx, "claude-4", "gamma-project", "")
+	require.NoError(t, err)
+
+	// Get all projects
+	projects, err := sessionStore.GetAllProjects(ctx)
+	require.NoError(t, err)
+	assert.Len(t, projects, 3)
+	assert.Contains(t, projects, "alpha-project")
+	assert.Contains(t, projects, "beta-project")
+	assert.Contains(t, projects, "gamma-project")
+
+	// Should be sorted alphabetically
+	assert.Equal(t, "alpha-project", projects[0])
+}
+
+func TestSessionStore_GetSessionByID_NotFound(t *testing.T) {
+	sessionStore, _, cleanup := testSessionStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Non-existent ID should return nil, nil (not an error)
+	sess, err := sessionStore.GetSessionByID(ctx, 999)
+	require.NoError(t, err)
+	assert.Nil(t, sess)
+}
+
+func TestSessionStore_SessionFields(t *testing.T) {
+	sessionStore, store, cleanup := testSessionStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create a session with full details
+	id, err := sessionStore.CreateSDKSession(ctx, "claude-full", "full-project", "full user prompt")
+	require.NoError(t, err)
+
+	// Manually update additional fields for testing
+	now := time.Now()
+	_, err = storeDB(store).Exec(`
+		UPDATE sdk_sessions
+		SET worker_port = ?, completed_at = ?, completed_at_epoch = ?, status = 'completed'
+		WHERE id = ?
+	`, 37777, now.Format(time.RFC3339), now.UnixMilli(), id)
+	require.NoError(t, err)
+
+	// Retrieve and verify all fields
+	sess, err := sessionStore.GetSessionByID(ctx, id)
+	require.NoError(t, err)
+	require.NotNil(t, sess)
+
+	assert.Equal(t, id, sess.ID)
+	assert.Equal(t, "claude-full", sess.ClaudeSessionID)
+	assert.Equal(t, "full-project", sess.Project)
+	assert.Equal(t, models.SessionStatusCompleted, sess.Status)
+	assert.True(t, sess.WorkerPort.Valid)
+	assert.Equal(t, int64(37777), sess.WorkerPort.Int64)
+	assert.True(t, sess.CompletedAt.Valid)
+	assert.True(t, sess.CompletedAtEpoch.Valid)
+}

internal/db/sqlite/store.go

@@ -0,0 +1,149 @@
+// Package sqlite provides SQLite database operations for claude-mnemonic.
+package sqlite
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"sync"
+
+	sqlite_vec "github.com/asg017/sqlite-vec-go-bindings/cgo"
+	_ "github.com/mattn/go-sqlite3"
+)
+
+// Store provides database operations with connection pooling and prepared statements.
+type Store struct {
+	db        *sql.DB
+	stmtCache map[string]*sql.Stmt
+	stmtMu    sync.RWMutex
+}
+
+// StoreConfig holds configuration for the database store.
+type StoreConfig struct {
+	Path     string
+	MaxConns int
+	WALMode  bool
+}
+
+// NewStore creates a new database store with the given configuration.
+func NewStore(cfg StoreConfig) (*Store, error) {
+	// Register sqlite-vec extension for vector operations
+	sqlite_vec.Auto()
+
+	// Build connection string with pragmas
+	connStr := cfg.Path + "?_journal_mode=WAL&_synchronous=NORMAL&_foreign_keys=ON"
+
+	db, err := sql.Open("sqlite3", connStr)
+	if err != nil {
+		return nil, fmt.Errorf("open database: %w", err)
+	}
+
+	// Configure connection pool
+	maxConns := cfg.MaxConns
+	if maxConns <= 0 {
+		maxConns = 4
+	}
+	db.SetMaxOpenConns(maxConns)
+	db.SetMaxIdleConns(maxConns)
+	db.SetConnMaxLifetime(0) // Never expire - SQLite connections are cheap
+
+	// Verify connection
+	if err := db.Ping(); err != nil {
+		_ = db.Close()
+		return nil, fmt.Errorf("ping database: %w", err)
+	}
+
+	store := &Store{
+		db:        db,
+		stmtCache: make(map[string]*sql.Stmt),
+	}
+
+	// Run migrations
+	mgr := NewMigrationManager(db)
+	if err := mgr.RunMigrations(); err != nil {
+		_ = db.Close()
+		return nil, fmt.Errorf("run migrations: %w", err)
+	}
+
+	return store, nil
+}
+
+// Close closes the database connection and all cached statements.
+func (s *Store) Close() error {
+	s.stmtMu.Lock()
+	defer s.stmtMu.Unlock()
+
+	for _, stmt := range s.stmtCache {
+		_ = stmt.Close()
+	}
+	s.stmtCache = nil
+
+	return s.db.Close()
+}
+
+// GetStmt returns a cached prepared statement, creating it if necessary.
+func (s *Store) GetStmt(query string) (*sql.Stmt, error) {
+	s.stmtMu.RLock()
+	stmt, ok := s.stmtCache[query]
+	s.stmtMu.RUnlock()
+	if ok {
+		return stmt, nil
+	}
+
+	s.stmtMu.Lock()
+	defer s.stmtMu.Unlock()
+
+	// Double-check after acquiring write lock
+	if stmt, ok := s.stmtCache[query]; ok {
+		return stmt, nil
+	}
+
+	stmt, err := s.db.Prepare(query)
+	if err != nil {
+		return nil, err
+	}
+
+	s.stmtCache[query] = stmt
+	return stmt, nil
+}
+
+// ExecContext executes a query that doesn't return rows.
+func (s *Store) ExecContext(ctx context.Context, query string, args ...interface{}) (sql.Result, error) {
+	stmt, err := s.GetStmt(query)
+	if err != nil {
+		// Fall back to direct execution
+		return s.db.ExecContext(ctx, query, args...)
+	}
+	return stmt.ExecContext(ctx, args...)
+}
+
+// QueryContext executes a query that returns rows.
+func (s *Store) QueryContext(ctx context.Context, query string, args ...interface{}) (*sql.Rows, error) {
+	stmt, err := s.GetStmt(query)
+	if err != nil {
+		// Fall back to direct execution
+		return s.db.QueryContext(ctx, query, args...)
+	}
+	return stmt.QueryContext(ctx, args...)
+}
+
+// QueryRowContext executes a query that returns a single row.
+func (s *Store) QueryRowContext(ctx context.Context, query string, args ...interface{}) *sql.Row {
+	stmt, err := s.GetStmt(query)
+	if err != nil {
+		// Fall back to direct execution
+		return s.db.QueryRowContext(ctx, query, args...)
+	}
+	return stmt.QueryRowContext(ctx, args...)
+}
+
+// Ping checks if the database connection is alive.
+func (s *Store) Ping() error {
+	return s.db.Ping()
+}
+
+// DB returns the underlying database connection for direct access.
+// Use this sparingly - prefer the store methods for most operations.
+func (s *Store) DB() *sql.DB {
+	return s.db
+}

internal/db/sqlite/store_test.go

@@ -0,0 +1,529 @@
+// Package sqlite provides SQLite database operations for claude-mnemonic.
+package sqlite
+
+import (
+	"context"
+	"database/sql"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+// StoreSuite is a test suite for Store operations.
+type StoreSuite struct {
+	suite.Suite
+	db      *sql.DB
+	store   *Store
+	cleanup func()
+}
+
+// SetupTest creates a fresh database before each test.
+func (s *StoreSuite) SetupTest() {
+	s.db, _, s.cleanup = testDB(s.T())
+	createBaseTables(s.T(), s.db)
+	s.store = newStoreFromDB(s.db)
+}
+
+// TearDownTest cleans up after each test.
+func (s *StoreSuite) TearDownTest() {
+	if s.cleanup != nil {
+		s.cleanup()
+	}
+}
+
+func TestStoreSuite(t *testing.T) {
+	suite.Run(t, new(StoreSuite))
+}
+
+// TestGetStmt tests prepared statement caching.
+func (s *StoreSuite) TestGetStmt() {
+	tests := []struct {
+		name    string
+		query   string
+		wantErr bool
+	}{
+		{
+			name:    "valid simple query",
+			query:   "SELECT 1",
+			wantErr: false,
+		},
+		{
+			name:    "valid query with parameter",
+			query:   "SELECT * FROM sdk_sessions WHERE id = ?",
+			wantErr: false,
+		},
+		{
+			name:    "invalid query syntax",
+			query:   "SELECT * FROM nonexistent_table WHERE",
+			wantErr: true,
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			stmt, err := s.store.GetStmt(tt.query)
+			if tt.wantErr {
+				s.Error(err)
+				s.Nil(stmt)
+			} else {
+				s.NoError(err)
+				s.NotNil(stmt)
+
+				// Second call should return cached statement
+				stmt2, err := s.store.GetStmt(tt.query)
+				s.NoError(err)
+				s.Same(stmt, stmt2)
+			}
+		})
+	}
+}
+
+// TestExecContext tests query execution.
+func (s *StoreSuite) TestExecContext() {
+	ctx := context.Background()
+
+	tests := []struct {
+		name         string
+		query        string
+		args         []interface{}
+		wantErr      bool
+		wantAffected int64
+	}{
+		{
+			name: "insert session",
+			query: `INSERT INTO sdk_sessions (claude_session_id, sdk_session_id, project, started_at, started_at_epoch, status)
+				VALUES (?, ?, ?, datetime('now'), strftime('%s', 'now') * 1000, 'active')`,
+			args:         []interface{}{"claude-1", "sdk-1", "test-project"},
+			wantErr:      false,
+			wantAffected: 1,
+		},
+		{
+			name:         "invalid query",
+			query:        "INSERT INTO nonexistent_table VALUES (?)",
+			args:         []interface{}{"test"},
+			wantErr:      true,
+			wantAffected: 0,
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			result, err := s.store.ExecContext(ctx, tt.query, tt.args...)
+			if tt.wantErr {
+				s.Error(err)
+			} else {
+				s.NoError(err)
+				affected, _ := result.RowsAffected()
+				s.Equal(tt.wantAffected, affected)
+			}
+		})
+	}
+}
+
+// TestQueryContext tests query execution that returns rows.
+func (s *StoreSuite) TestQueryContext() {
+	ctx := context.Background()
+
+	// Seed data
+	seedSession(s.T(), s.db, "claude-1", "sdk-1", "project-a")
+
+	tests := []struct {
+		name       string
+		query      string
+		args       []interface{}
+		wantErr    bool
+		wantRows   int
+		setupFunc  func()
+		assertFunc func(rows *sql.Rows)
+	}{
+		{
+			name:     "query existing session",
+			query:    "SELECT id, project FROM sdk_sessions WHERE claude_session_id = ?",
+			args:     []interface{}{"claude-1"},
+			wantErr:  false,
+			wantRows: 1,
+		},
+		{
+			name:     "query non-existent session",
+			query:    "SELECT id, project FROM sdk_sessions WHERE claude_session_id = ?",
+			args:     []interface{}{"nonexistent"},
+			wantErr:  false,
+			wantRows: 0,
+		},
+		{
+			name:     "query all sessions",
+			query:    "SELECT id, project FROM sdk_sessions",
+			args:     nil,
+			wantErr:  false,
+			wantRows: 1,
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			rows, err := s.store.QueryContext(ctx, tt.query, tt.args...)
+			if tt.wantErr {
+				s.Error(err)
+				return
+			}
+
+			s.NoError(err)
+			defer rows.Close()
+
+			count := 0
+			for rows.Next() {
+				count++
+			}
+			s.Equal(tt.wantRows, count)
+		})
+	}
+}
+
+// TestQueryRowContext tests single row query execution.
+func (s *StoreSuite) TestQueryRowContext() {
+	ctx := context.Background()
+
+	// Seed data
+	seedSession(s.T(), s.db, "claude-1", "sdk-1", "project-a")
+
+	tests := []struct {
+		name    string
+		query   string
+		args    []interface{}
+		wantErr bool
+	}{
+		{
+			name:    "query existing session",
+			query:   "SELECT id FROM sdk_sessions WHERE claude_session_id = ?",
+			args:    []interface{}{"claude-1"},
+			wantErr: false,
+		},
+		{
+			name:    "query non-existent session",
+			query:   "SELECT id FROM sdk_sessions WHERE claude_session_id = ?",
+			args:    []interface{}{"nonexistent"},
+			wantErr: true, // sql.ErrNoRows
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			row := s.store.QueryRowContext(ctx, tt.query, tt.args...)
+			var id int64
+			err := row.Scan(&id)
+			if tt.wantErr {
+				s.Error(err)
+			} else {
+				s.NoError(err)
+				s.Greater(id, int64(0))
+			}
+		})
+	}
+}
+
+// TestPing tests database connection health check.
+func (s *StoreSuite) TestPing() {
+	err := s.store.Ping()
+	s.NoError(err)
+}
+
+// TestDB tests getting the underlying database connection.
+func (s *StoreSuite) TestDB() {
+	db := s.store.DB()
+	s.NotNil(db)
+	s.Same(s.db, db)
+}
+
+// TestClose tests closing the store.
+func (s *StoreSuite) TestClose() {
+	// Create a separate store for close test
+	db, _, cleanup := testDB(s.T())
+	defer cleanup()
+
+	store := newStoreFromDB(db)
+
+	// Cache a statement first
+	_, err := store.GetStmt("SELECT 1")
+	s.NoError(err)
+
+	// Close should not error
+	err = store.Close()
+	s.NoError(err)
+
+	// Operations after close should fail
+	err = store.Ping()
+	s.Error(err)
+}
+
+// TestConcurrentStmtCache tests concurrent access to statement cache.
+func (s *StoreSuite) TestConcurrentStmtCache() {
+	ctx := context.Background()
+	queries := []string{
+		"SELECT 1",
+		"SELECT 2",
+		"SELECT id FROM sdk_sessions",
+		"SELECT project FROM sdk_sessions",
+	}
+
+	done := make(chan struct{})
+	for i := 0; i < 10; i++ {
+		go func(i int) {
+			query := queries[i%len(queries)]
+			_, _ = s.store.GetStmt(query)
+			_, _ = s.store.ExecContext(ctx, "SELECT 1")
+			done <- struct{}{}
+		}(i)
+	}
+
+	for i := 0; i < 10; i++ {
+		<-done
+	}
+}
+
+// HelpersSuite tests helper functions.
+type HelpersSuite struct {
+	suite.Suite
+}
+
+func TestHelpersSuite(t *testing.T) {
+	suite.Run(t, new(HelpersSuite))
+}
+
+func (s *HelpersSuite) TestNullString() {
+	tests := []struct {
+		name     string
+		input    string
+		wantStr  string
+		wantBool bool
+	}{
+		{
+			name:     "empty string",
+			input:    "",
+			wantStr:  "",
+			wantBool: false,
+		},
+		{
+			name:     "non-empty string",
+			input:    "test",
+			wantStr:  "test",
+			wantBool: true,
+		},
+		{
+			name:     "whitespace string",
+			input:    "  ",
+			wantStr:  "  ",
+			wantBool: true,
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			result := nullString(tt.input)
+			s.Equal(tt.wantStr, result.String)
+			s.Equal(tt.wantBool, result.Valid)
+		})
+	}
+}
+
+func (s *HelpersSuite) TestNullInt() {
+	tests := []struct {
+		name     string
+		input    int
+		wantInt  int64
+		wantBool bool
+	}{
+		{
+			name:     "zero",
+			input:    0,
+			wantInt:  0,
+			wantBool: false,
+		},
+		{
+			name:     "negative",
+			input:    -1,
+			wantInt:  -1,
+			wantBool: false,
+		},
+		{
+			name:     "positive",
+			input:    42,
+			wantInt:  42,
+			wantBool: true,
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			result := nullInt(tt.input)
+			s.Equal(tt.wantInt, result.Int64)
+			s.Equal(tt.wantBool, result.Valid)
+		})
+	}
+}
+
+func (s *HelpersSuite) TestRepeatPlaceholders() {
+	tests := []struct {
+		name     string
+		input    int
+		expected string
+	}{
+		{
+			name:     "zero",
+			input:    0,
+			expected: "",
+		},
+		{
+			name:     "negative",
+			input:    -1,
+			expected: "",
+		},
+		{
+			name:     "one",
+			input:    1,
+			expected: ", ?",
+		},
+		{
+			name:     "three",
+			input:    3,
+			expected: ", ?, ?, ?",
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			result := repeatPlaceholders(tt.input)
+			s.Equal(tt.expected, result)
+		})
+	}
+}
+
+func (s *HelpersSuite) TestInt64SliceToInterface() {
+	tests := []struct {
+		name     string
+		input    []int64
+		expected int
+	}{
+		{
+			name:     "empty slice",
+			input:    []int64{},
+			expected: 0,
+		},
+		{
+			name:     "single element",
+			input:    []int64{42},
+			expected: 1,
+		},
+		{
+			name:     "multiple elements",
+			input:    []int64{1, 2, 3, 4, 5},
+			expected: 5,
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			result := int64SliceToInterface(tt.input)
+			s.Len(result, tt.expected)
+			for i, v := range result {
+				s.Equal(tt.input[i], v)
+			}
+		})
+	}
+}
+
+// TestBuildGetByIDsQuery tests the shared query builder.
+func TestBuildGetByIDsQuery(t *testing.T) {
+	tests := []struct {
+		name      string
+		baseQuery string
+		ids       []int64
+		orderBy   string
+		limit     int
+		wantQuery string
+		wantArgs  int
+	}{
+		{
+			name:      "single id, no limit, desc order",
+			baseQuery: "SELECT * FROM test",
+			ids:       []int64{1},
+			orderBy:   "date_desc",
+			limit:     0,
+			wantQuery: "SELECT * FROM test WHERE id IN (?)\n\t\tORDER BY created_at_epoch DESC",
+			wantArgs:  1,
+		},
+		{
+			name:      "multiple ids with limit and asc order",
+			baseQuery: "SELECT * FROM test",
+			ids:       []int64{1, 2, 3},
+			orderBy:   "date_asc",
+			limit:     10,
+			wantQuery: "SELECT * FROM test WHERE id IN (?, ?, ?)\n\t\tORDER BY created_at_epoch ASC LIMIT ?",
+			wantArgs:  4,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			query, args := BuildGetByIDsQuery(tt.baseQuery, tt.ids, tt.orderBy, tt.limit)
+			assert.Contains(t, query, "WHERE id IN")
+			assert.Len(t, args, tt.wantArgs)
+		})
+	}
+}
+
+// TestEnsureSessionExists tests session auto-creation.
+func TestEnsureSessionExists(t *testing.T) {
+	db, _, cleanup := testDB(t)
+	defer cleanup()
+	createBaseTables(t, db)
+
+	store := newStoreFromDB(db)
+	ctx := context.Background()
+
+	tests := []struct {
+		name         string
+		sdkSessionID string
+		project      string
+		setup        func()
+		wantErr      bool
+	}{
+		{
+			name:         "create new session",
+			sdkSessionID: "sdk-new",
+			project:      "project-a",
+			wantErr:      false,
+		},
+		{
+			name:         "session already exists",
+			sdkSessionID: "sdk-existing",
+			project:      "project-b",
+			setup: func() {
+				seedSession(t, db, "sdk-existing", "sdk-existing", "project-b")
+			},
+			wantErr: false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if tt.setup != nil {
+				tt.setup()
+			}
+
+			err := EnsureSessionExists(ctx, store, tt.sdkSessionID, tt.project)
+			if tt.wantErr {
+				require.Error(t, err)
+			} else {
+				require.NoError(t, err)
+
+				// Verify session exists
+				var id int64
+				err := db.QueryRow("SELECT id FROM sdk_sessions WHERE sdk_session_id = ?", tt.sdkSessionID).Scan(&id)
+				require.NoError(t, err)
+				assert.Greater(t, id, int64(0))
+			}
+		})
+	}
+}

internal/db/sqlite/summary.go

@@ -0,0 +1,118 @@
+// Package sqlite provides SQLite database operations for claude-mnemonic.
+package sqlite
+
+import (
+	"context"
+	"time"
+
+	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
+)
+
+// SummaryStore provides summary-related database operations.
+type SummaryStore struct {
+	store *Store
+}
+
+// NewSummaryStore creates a new summary store.
+func NewSummaryStore(store *Store) *SummaryStore {
+	return &SummaryStore{store: store}
+}
+
+// StoreSummary stores a new session summary.
+func (s *SummaryStore) StoreSummary(ctx context.Context, sdkSessionID, project string, summary *models.ParsedSummary, promptNumber int, discoveryTokens int64) (int64, int64, error) {
+	now := time.Now()
+	nowEpoch := now.UnixMilli()
+
+	// Ensure session exists (auto-create if missing)
+	if err := s.ensureSessionExists(ctx, sdkSessionID, project); err != nil {
+		return 0, 0, err
+	}
+
+	const query = `
+		INSERT INTO session_summaries
+		(sdk_session_id, project, request, investigated, learned, completed,
+		 next_steps, notes, prompt_number, discovery_tokens, created_at, created_at_epoch)
+		VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`
+
+	result, err := s.store.ExecContext(ctx, query,
+		sdkSessionID, project,
+		nullString(summary.Request), nullString(summary.Investigated),
+		nullString(summary.Learned), nullString(summary.Completed),
+		nullString(summary.NextSteps), nullString(summary.Notes),
+		nullInt(promptNumber), discoveryTokens,
+		now.Format(time.RFC3339), nowEpoch,
+	)
+	if err != nil {
+		return 0, 0, err
+	}
+
+	id, _ := result.LastInsertId()
+	return id, nowEpoch, nil
+}
+
+// ensureSessionExists creates a session if it doesn't exist.
+func (s *SummaryStore) ensureSessionExists(ctx context.Context, sdkSessionID, project string) error {
+	return EnsureSessionExists(ctx, s.store, sdkSessionID, project)
+}
+
+// GetSummariesByIDs retrieves summaries by a list of IDs.
+func (s *SummaryStore) GetSummariesByIDs(ctx context.Context, ids []int64, orderBy string, limit int) ([]*models.SessionSummary, error) {
+	if len(ids) == 0 {
+		return nil, nil
+	}
+
+	const baseQuery = `
+		SELECT id, sdk_session_id, project, request, investigated, learned, completed,
+		       next_steps, notes, prompt_number, discovery_tokens, created_at, created_at_epoch
+		FROM session_summaries`
+
+	query, args := BuildGetByIDsQuery(baseQuery, ids, orderBy, limit)
+
+	rows, err := s.store.db.QueryContext(ctx, query, args...)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	return scanSummaryRows(rows)
+}
+
+// GetRecentSummaries retrieves recent summaries for a project.
+func (s *SummaryStore) GetRecentSummaries(ctx context.Context, project string, limit int) ([]*models.SessionSummary, error) {
+	const query = `
+		SELECT id, sdk_session_id, project, request, investigated, learned, completed,
+		       next_steps, notes, prompt_number, discovery_tokens, created_at, created_at_epoch
+		FROM session_summaries
+		WHERE project = ?
+		ORDER BY created_at_epoch DESC
+		LIMIT ?
+	`
+
+	rows, err := s.store.QueryContext(ctx, query, project, limit)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	return scanSummaryRows(rows)
+}
+
+// GetAllRecentSummaries retrieves recent summaries across all projects.
+func (s *SummaryStore) GetAllRecentSummaries(ctx context.Context, limit int) ([]*models.SessionSummary, error) {
+	const query = `
+		SELECT id, sdk_session_id, project, request, investigated, learned, completed,
+		       next_steps, notes, prompt_number, discovery_tokens, created_at, created_at_epoch
+		FROM session_summaries
+		ORDER BY created_at_epoch DESC
+		LIMIT ?
+	`
+
+	rows, err := s.store.QueryContext(ctx, query, limit)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	return scanSummaryRows(rows)
+}

internal/db/sqlite/summary_test.go

@@ -0,0 +1,242 @@
+package sqlite
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func testSummaryStore(t *testing.T) (*SummaryStore, *Store, func()) {
+	t.Helper()
+
+	db, _, cleanup := testDB(t)
+	createAllTables(t, db)
+
+	store := newStoreFromDB(db)
+	summaryStore := NewSummaryStore(store)
+
+	return summaryStore, store, cleanup
+}
+
+func TestSummaryStore_StoreSummary(t *testing.T) {
+	summaryStore, store, cleanup := testSummaryStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create a session first
+	seedSession(t, storeDB(store), "claude-1", "sdk-1", "test-project")
+
+	summary := &models.ParsedSummary{
+		Request:      "Add new feature",
+		Investigated: "Looked at existing code",
+		Learned:      "Found the pattern to follow",
+		Completed:    "Implemented the feature",
+		NextSteps:    "Add tests",
+		Notes:        "Some additional notes",
+	}
+
+	id, epoch, err := summaryStore.StoreSummary(ctx, "sdk-1", "test-project", summary, 1, 100)
+	require.NoError(t, err)
+	assert.Greater(t, id, int64(0))
+	assert.Greater(t, epoch, int64(0))
+
+	// Verify it was saved
+	var count int
+	err = storeDB(store).QueryRow("SELECT COUNT(*) FROM session_summaries WHERE id = ?", id).Scan(&count)
+	require.NoError(t, err)
+	assert.Equal(t, 1, count)
+}
+
+func TestSummaryStore_StoreSummary_AutoCreateSession(t *testing.T) {
+	summaryStore, store, cleanup := testSummaryStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Don't create session beforehand - should be auto-created
+	summary := &models.ParsedSummary{
+		Request: "Test request",
+	}
+
+	id, _, err := summaryStore.StoreSummary(ctx, "auto-session", "test-project", summary, 1, 0)
+	require.NoError(t, err)
+	assert.Greater(t, id, int64(0))
+
+	// Verify session was auto-created
+	var sessionCount int
+	err = storeDB(store).QueryRow("SELECT COUNT(*) FROM sdk_sessions WHERE sdk_session_id = ?", "auto-session").Scan(&sessionCount)
+	require.NoError(t, err)
+	assert.Equal(t, 1, sessionCount)
+}
+
+func TestSummaryStore_GetRecentSummaries(t *testing.T) {
+	summaryStore, store, cleanup := testSummaryStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create a session
+	seedSession(t, storeDB(store), "claude-1", "sdk-1", "test-project")
+
+	// Store multiple summaries
+	for i := 0; i < 5; i++ {
+		summary := &models.ParsedSummary{
+			Request: "Request " + string(rune('A'+i)),
+		}
+		_, _, err := summaryStore.StoreSummary(ctx, "sdk-1", "test-project", summary, i+1, 0)
+		require.NoError(t, err)
+		time.Sleep(time.Millisecond) // Ensure different timestamps
+	}
+
+	// Get recent summaries with limit
+	summaries, err := summaryStore.GetRecentSummaries(ctx, "test-project", 3)
+	require.NoError(t, err)
+	assert.Len(t, summaries, 3)
+
+	// Should be in descending order
+	assert.Equal(t, int64(5), summaries[0].PromptNumber.Int64)
+}
+
+func TestSummaryStore_GetAllRecentSummaries(t *testing.T) {
+	summaryStore, store, cleanup := testSummaryStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create sessions for different projects
+	seedSession(t, storeDB(store), "claude-1", "sdk-1", "project-a")
+	seedSession(t, storeDB(store), "claude-2", "sdk-2", "project-b")
+
+	// Store summaries for both projects
+	for i := 0; i < 3; i++ {
+		summary := &models.ParsedSummary{Request: "Project A request"}
+		_, _, err := summaryStore.StoreSummary(ctx, "sdk-1", "project-a", summary, i+1, 0)
+		require.NoError(t, err)
+	}
+	for i := 0; i < 2; i++ {
+		summary := &models.ParsedSummary{Request: "Project B request"}
+		_, _, err := summaryStore.StoreSummary(ctx, "sdk-2", "project-b", summary, i+1, 0)
+		require.NoError(t, err)
+	}
+
+	// Get all summaries (should include both projects)
+	summaries, err := summaryStore.GetAllRecentSummaries(ctx, 10)
+	require.NoError(t, err)
+	assert.Len(t, summaries, 5)
+}
+
+func TestSummaryStore_GetSummariesByIDs(t *testing.T) {
+	summaryStore, store, cleanup := testSummaryStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create a session
+	seedSession(t, storeDB(store), "claude-1", "sdk-1", "test-project")
+
+	// Store summaries and collect IDs
+	var ids []int64
+	for i := 0; i < 5; i++ {
+		summary := &models.ParsedSummary{Request: "Request " + string(rune('A'+i))}
+		id, _, err := summaryStore.StoreSummary(ctx, "sdk-1", "test-project", summary, i+1, 0)
+		require.NoError(t, err)
+		ids = append(ids, id)
+		time.Sleep(time.Millisecond)
+	}
+
+	// Get specific summaries by ID
+	summaries, err := summaryStore.GetSummariesByIDs(ctx, ids[:3], "date_desc", 10)
+	require.NoError(t, err)
+	assert.Len(t, summaries, 3)
+
+	// Test with ascending order
+	summaries, err = summaryStore.GetSummariesByIDs(ctx, ids, "date_asc", 2)
+	require.NoError(t, err)
+	assert.Len(t, summaries, 2)
+	assert.Equal(t, int64(1), summaries[0].PromptNumber.Int64)
+}
+
+func TestSummaryStore_GetSummariesByIDs_EmptyInput(t *testing.T) {
+	summaryStore, _, cleanup := testSummaryStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Empty IDs should return nil
+	summaries, err := summaryStore.GetSummariesByIDs(ctx, []int64{}, "date_desc", 10)
+	require.NoError(t, err)
+	assert.Nil(t, summaries)
+}
+
+func TestSummaryStore_SummaryFields(t *testing.T) {
+	summaryStore, store, cleanup := testSummaryStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create a session
+	seedSession(t, storeDB(store), "claude-1", "sdk-1", "test-project")
+
+	// Store a summary with all fields
+	summary := &models.ParsedSummary{
+		Request:      "Add authentication",
+		Investigated: "Reviewed existing auth code",
+		Learned:      "OAuth is preferred",
+		Completed:    "Implemented OAuth flow",
+		NextSteps:    "Add refresh token support",
+		Notes:        "Consider rate limiting",
+	}
+
+	id, _, err := summaryStore.StoreSummary(ctx, "sdk-1", "test-project", summary, 5, 1500)
+	require.NoError(t, err)
+
+	// Retrieve and verify all fields
+	summaries, err := summaryStore.GetSummariesByIDs(ctx, []int64{id}, "date_desc", 1)
+	require.NoError(t, err)
+	require.Len(t, summaries, 1)
+
+	s := summaries[0]
+	assert.Equal(t, id, s.ID)
+	assert.Equal(t, "sdk-1", s.SDKSessionID)
+	assert.Equal(t, "test-project", s.Project)
+	assert.Equal(t, "Add authentication", s.Request.String)
+	assert.Equal(t, "Reviewed existing auth code", s.Investigated.String)
+	assert.Equal(t, "OAuth is preferred", s.Learned.String)
+	assert.Equal(t, "Implemented OAuth flow", s.Completed.String)
+	assert.Equal(t, "Add refresh token support", s.NextSteps.String)
+	assert.Equal(t, "Consider rate limiting", s.Notes.String)
+	assert.Equal(t, int64(5), s.PromptNumber.Int64)
+	assert.Equal(t, int64(1500), s.DiscoveryTokens)
+}
+
+func TestSummaryStore_EmptySummary(t *testing.T) {
+	summaryStore, store, cleanup := testSummaryStore(t)
+	defer cleanup()
+
+	ctx := context.Background()
+
+	// Create a session
+	seedSession(t, storeDB(store), "claude-1", "sdk-1", "test-project")
+
+	// Store an empty summary
+	summary := &models.ParsedSummary{}
+
+	id, _, err := summaryStore.StoreSummary(ctx, "sdk-1", "test-project", summary, 0, 0)
+	require.NoError(t, err)
+	assert.Greater(t, id, int64(0))
+
+	// Retrieve and verify null fields
+	summaries, err := summaryStore.GetSummariesByIDs(ctx, []int64{id}, "date_desc", 1)
+	require.NoError(t, err)
+	require.Len(t, summaries, 1)
+
+	s := summaries[0]
+	assert.False(t, s.Request.Valid || s.Request.String != "")
+	assert.False(t, s.Investigated.Valid || s.Investigated.String != "")
+	assert.False(t, s.Learned.Valid || s.Learned.String != "")
+}

internal/db/sqlite/testhelpers_test.go

@@ -0,0 +1,315 @@
+package sqlite
+
+import (
+	"database/sql"
+	"os"
+	"testing"
+
+	_ "github.com/mattn/go-sqlite3"
+)
+
+// newStoreFromDB creates a Store from an existing database connection for testing.
+func newStoreFromDB(db *sql.DB) *Store {
+	return &Store{
+		db:        db,
+		stmtCache: make(map[string]*sql.Stmt),
+	}
+}
+
+// storeDB returns the underlying database connection from a store for testing.
+func storeDB(s *Store) *sql.DB {
+	return s.db
+}
+
+// testDB creates a temporary SQLite database for testing.
+// Returns the database, path, and a cleanup function.
+func testDB(t *testing.T) (*sql.DB, string, func()) {
+	t.Helper()
+
+	tmpDir, err := os.MkdirTemp("", "claude-mnemonic-test-*")
+	if err != nil {
+		t.Fatalf("create temp dir: %v", err)
+	}
+
+	dbPath := tmpDir + "/test.db"
+	connStr := dbPath + "?_journal_mode=WAL&_synchronous=NORMAL&_foreign_keys=ON"
+
+	db, err := sql.Open("sqlite3", connStr)
+	if err != nil {
+		_ = os.RemoveAll(tmpDir)
+		t.Fatalf("open database: %v", err)
+	}
+
+	cleanup := func() {
+		_ = db.Close()
+		_ = os.RemoveAll(tmpDir)
+	}
+
+	return db, dbPath, cleanup
+}
+
+// createBaseTables creates the base tables without FTS5 for unit testing.
+func createBaseTables(t *testing.T, db *sql.DB) {
+	t.Helper()
+
+	_, err := db.Exec(`
+		CREATE TABLE IF NOT EXISTS schema_versions (
+			id INTEGER PRIMARY KEY,
+			version INTEGER UNIQUE NOT NULL,
+			applied_at TEXT NOT NULL
+		)
+	`)
+	if err != nil {
+		t.Fatalf("create schema_versions: %v", err)
+	}
+
+	_, err = db.Exec(`
+		CREATE TABLE IF NOT EXISTS sdk_sessions (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			claude_session_id TEXT UNIQUE NOT NULL,
+			sdk_session_id TEXT UNIQUE,
+			project TEXT NOT NULL,
+			user_prompt TEXT,
+			started_at TEXT NOT NULL,
+			started_at_epoch INTEGER NOT NULL,
+			completed_at TEXT,
+			completed_at_epoch INTEGER,
+			status TEXT CHECK(status IN ('active', 'completed', 'failed')) NOT NULL DEFAULT 'active',
+			worker_port INTEGER,
+			prompt_counter INTEGER DEFAULT 0
+		)
+	`)
+	if err != nil {
+		t.Fatalf("create sdk_sessions: %v", err)
+	}
+
+	_, err = db.Exec(`
+		CREATE TABLE IF NOT EXISTS observations (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			sdk_session_id TEXT NOT NULL,
+			project TEXT NOT NULL,
+			text TEXT,
+			type TEXT NOT NULL CHECK(type IN ('decision', 'bugfix', 'feature', 'refactor', 'discovery', 'change')),
+			title TEXT,
+			subtitle TEXT,
+			facts TEXT,
+			narrative TEXT,
+			concepts TEXT,
+			files_read TEXT,
+			files_modified TEXT,
+			file_mtimes TEXT,
+			scope TEXT DEFAULT 'project' CHECK(scope IN ('project', 'global')),
+			prompt_number INTEGER,
+			discovery_tokens INTEGER DEFAULT 0,
+			created_at TEXT NOT NULL,
+			created_at_epoch INTEGER NOT NULL,
+			FOREIGN KEY(sdk_session_id) REFERENCES sdk_sessions(sdk_session_id) ON DELETE CASCADE
+		)
+	`)
+	if err != nil {
+		t.Fatalf("create observations: %v", err)
+	}
+
+	_, err = db.Exec(`
+		CREATE TABLE IF NOT EXISTS session_summaries (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			sdk_session_id TEXT NOT NULL,
+			project TEXT NOT NULL,
+			request TEXT,
+			investigated TEXT,
+			learned TEXT,
+			completed TEXT,
+			next_steps TEXT,
+			files_read TEXT,
+			files_edited TEXT,
+			notes TEXT,
+			prompt_number INTEGER,
+			discovery_tokens INTEGER DEFAULT 0,
+			created_at TEXT NOT NULL,
+			created_at_epoch INTEGER NOT NULL,
+			FOREIGN KEY(sdk_session_id) REFERENCES sdk_sessions(sdk_session_id) ON DELETE CASCADE
+		)
+	`)
+	if err != nil {
+		t.Fatalf("create session_summaries: %v", err)
+	}
+
+	_, err = db.Exec(`
+		CREATE TABLE IF NOT EXISTS user_prompts (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			claude_session_id TEXT NOT NULL,
+			prompt_number INTEGER NOT NULL,
+			prompt_text TEXT NOT NULL,
+			matched_observations INTEGER DEFAULT 0,
+			created_at TEXT NOT NULL,
+			created_at_epoch INTEGER NOT NULL,
+			FOREIGN KEY(claude_session_id) REFERENCES sdk_sessions(claude_session_id) ON DELETE CASCADE
+		)
+	`)
+	if err != nil {
+		t.Fatalf("create user_prompts: %v", err)
+	}
+
+	indexes := []string{
+		`CREATE INDEX IF NOT EXISTS idx_sdk_sessions_claude_id ON sdk_sessions(claude_session_id)`,
+		`CREATE INDEX IF NOT EXISTS idx_sdk_sessions_sdk_id ON sdk_sessions(sdk_session_id)`,
+		`CREATE INDEX IF NOT EXISTS idx_sdk_sessions_project ON sdk_sessions(project)`,
+		`CREATE INDEX IF NOT EXISTS idx_observations_sdk_session ON observations(sdk_session_id)`,
+		`CREATE INDEX IF NOT EXISTS idx_observations_project ON observations(project)`,
+		`CREATE INDEX IF NOT EXISTS idx_observations_scope ON observations(scope)`,
+		`CREATE INDEX IF NOT EXISTS idx_observations_created ON observations(created_at_epoch DESC)`,
+		`CREATE INDEX IF NOT EXISTS idx_session_summaries_sdk_session ON session_summaries(sdk_session_id)`,
+		`CREATE INDEX IF NOT EXISTS idx_session_summaries_project ON session_summaries(project)`,
+		`CREATE INDEX IF NOT EXISTS idx_user_prompts_claude_session ON user_prompts(claude_session_id)`,
+		`CREATE INDEX IF NOT EXISTS idx_user_prompts_created ON user_prompts(created_at_epoch DESC)`,
+	}
+	for _, idx := range indexes {
+		if _, err := db.Exec(idx); err != nil {
+			t.Fatalf("create index: %v", err)
+		}
+	}
+}
+
+// seedSession creates a test session in the database.
+func seedSession(t *testing.T, db *sql.DB, claudeSessionID, sdkSessionID, project string) {
+	t.Helper()
+
+	_, err := db.Exec(`
+		INSERT INTO sdk_sessions (claude_session_id, sdk_session_id, project, started_at, started_at_epoch, status)
+		VALUES (?, ?, ?, datetime('now'), strftime('%s', 'now') * 1000, 'active')
+	`, claudeSessionID, sdkSessionID, project)
+	if err != nil {
+		t.Fatalf("seed session: %v", err)
+	}
+}
+
+// hasFTS5 checks if FTS5 is available in the SQLite build.
+func hasFTS5(db *sql.DB) bool {
+	_, err := db.Exec("CREATE VIRTUAL TABLE IF NOT EXISTS fts5_test USING fts5(content)")
+	if err != nil {
+		return false
+	}
+	_, _ = db.Exec("DROP TABLE IF EXISTS fts5_test")
+	return true
+}
+
+// createFTSTables creates FTS5 virtual tables and triggers for full-text search.
+func createFTSTables(t *testing.T, db *sql.DB) {
+	t.Helper()
+
+	if !hasFTS5(db) {
+		t.Skip("FTS5 not available in this SQLite build")
+	}
+
+	_, err := db.Exec(`
+		CREATE VIRTUAL TABLE IF NOT EXISTS observations_fts USING fts5(
+			title, subtitle, narrative,
+			content='observations',
+			content_rowid='id'
+		)
+	`)
+	if err != nil {
+		t.Fatalf("create observations_fts: %v", err)
+	}
+
+	_, err = db.Exec(`
+		CREATE TRIGGER IF NOT EXISTS observations_ai AFTER INSERT ON observations BEGIN
+			INSERT INTO observations_fts(rowid, title, subtitle, narrative)
+			VALUES (new.id, new.title, new.subtitle, new.narrative);
+		END
+	`)
+	if err != nil {
+		t.Fatalf("create observations_ai trigger: %v", err)
+	}
+
+	_, err = db.Exec(`
+		CREATE TRIGGER IF NOT EXISTS observations_ad AFTER DELETE ON observations BEGIN
+			INSERT INTO observations_fts(observations_fts, rowid, title, subtitle, narrative)
+			VALUES ('delete', old.id, old.title, old.subtitle, old.narrative);
+		END
+	`)
+	if err != nil {
+		t.Fatalf("create observations_ad trigger: %v", err)
+	}
+
+	_, err = db.Exec(`
+		CREATE TRIGGER IF NOT EXISTS observations_au AFTER UPDATE ON observations BEGIN
+			INSERT INTO observations_fts(observations_fts, rowid, title, subtitle, narrative)
+			VALUES ('delete', old.id, old.title, old.subtitle, old.narrative);
+			INSERT INTO observations_fts(rowid, title, subtitle, narrative)
+			VALUES (new.id, new.title, new.subtitle, new.narrative);
+		END
+	`)
+	if err != nil {
+		t.Fatalf("create observations_au trigger: %v", err)
+	}
+
+	_, err = db.Exec(`
+		CREATE VIRTUAL TABLE IF NOT EXISTS session_summaries_fts USING fts5(
+			request, investigated, learned, completed, next_steps, notes,
+			content='session_summaries',
+			content_rowid='id'
+		)
+	`)
+	if err != nil {
+		t.Fatalf("create session_summaries_fts: %v", err)
+	}
+
+	_, err = db.Exec(`
+		CREATE TRIGGER IF NOT EXISTS summaries_ai AFTER INSERT ON session_summaries BEGIN
+			INSERT INTO session_summaries_fts(rowid, request, investigated, learned, completed, next_steps, notes)
+			VALUES (new.id, new.request, new.investigated, new.learned, new.completed, new.next_steps, new.notes);
+		END
+	`)
+	if err != nil {
+		t.Fatalf("create summaries_ai trigger: %v", err)
+	}
+
+	_, err = db.Exec(`
+		CREATE TRIGGER IF NOT EXISTS summaries_ad AFTER DELETE ON session_summaries BEGIN
+			INSERT INTO session_summaries_fts(session_summaries_fts, rowid, request, investigated, learned, completed, next_steps, notes)
+			VALUES ('delete', old.id, old.request, old.investigated, old.learned, old.completed, old.next_steps, old.notes);
+		END
+	`)
+	if err != nil {
+		t.Fatalf("create summaries_ad trigger: %v", err)
+	}
+
+	_, err = db.Exec(`
+		CREATE VIRTUAL TABLE IF NOT EXISTS user_prompts_fts USING fts5(
+			prompt_text,
+			content='user_prompts',
+			content_rowid='id'
+		)
+	`)
+	if err != nil {
+		t.Fatalf("create user_prompts_fts: %v", err)
+	}
+
+	_, err = db.Exec(`
+		CREATE TRIGGER IF NOT EXISTS prompts_ai AFTER INSERT ON user_prompts BEGIN
+			INSERT INTO user_prompts_fts(rowid, prompt_text)
+			VALUES (new.id, new.prompt_text);
+		END
+	`)
+	if err != nil {
+		t.Fatalf("create prompts_ai trigger: %v", err)
+	}
+
+	_, err = db.Exec(`
+		CREATE TRIGGER IF NOT EXISTS prompts_ad AFTER DELETE ON user_prompts BEGIN
+			INSERT INTO user_prompts_fts(user_prompts_fts, rowid, prompt_text)
+			VALUES ('delete', old.id, old.prompt_text);
+		END
+	`)
+	if err != nil {
+		t.Fatalf("create prompts_ad trigger: %v", err)
+	}
+}
+
+// createAllTables creates all tables including FTS5 for comprehensive testing.
+func createAllTables(t *testing.T, db *sql.DB) {
+	t.Helper()
+	createBaseTables(t, db)
+	createFTSTables(t, db)
+}

internal/embedding/assets/.model_version

@@ -1 +0,0 @@
-bge-small-en-v1.5

internal/embedding/assets/tokenizer.json

@@ -1,7 +1,21 @@
 {
   "version": "1.0",
-  "truncation": null,
-  "padding": null,
+  "truncation": {
+    "direction": "Right",
+    "max_length": 128,
+    "strategy": "LongestFirst",
+    "stride": 0
+  },
+  "padding": {
+    "strategy": {
+      "Fixed": 128
+    },
+    "direction": "Right",
+    "pad_to_multiple_of": null,
+    "pad_id": 0,
+    "pad_type_id": 0,
+    "pad_token": "[PAD]"
+  },
   "added_tokens": [
     {
       "id": 0,

internal/embedding/model.go

@@ -1,152 +0,0 @@
-// Package embedding provides text embedding generation with swappable models.
-package embedding
-
-import (
-	"fmt"
-	"sync"
-)
-
-// PoolingStrategy defines how to pool token embeddings into sentence embeddings.
-type PoolingStrategy string
-
-const (
-	// PoolingNone means the model already outputs sentence embeddings directly.
-	PoolingNone PoolingStrategy = "none"
-	// PoolingMean averages all token embeddings (weighted by attention mask).
-	PoolingMean PoolingStrategy = "mean"
-	// PoolingCLS uses only the [CLS] token embedding.
-	PoolingCLS PoolingStrategy = "cls"
-)
-
-// ONNXConfig describes ONNX-specific model configuration.
-// This allows different models to specify their tensor names and pooling needs.
-type ONNXConfig struct {
-	Pooling     PoolingStrategy
-	InputNames  []string
-	OutputNames []string
-	HiddenSize  int
-}
-
-// EmbeddingModel represents a text embedding model.
-type EmbeddingModel interface {
-	// Name returns the human-readable model name (e.g., "bge-small-en-v1.5").
-	Name() string
-
-	// Version returns a short version string for storage (e.g., "bge-v1.5").
-	Version() string
-
-	// Dimensions returns the embedding vector size.
-	Dimensions() int
-
-	// Embed generates an embedding for a single text.
-	Embed(text string) ([]float32, error)
-
-	// EmbedBatch generates embeddings for multiple texts.
-	EmbedBatch(texts []string) ([][]float32, error)
-
-	// Close releases model resources.
-	Close() error
-}
-
-// ONNXConfigurer is an optional interface that models can implement
-// to expose their ONNX configuration for introspection.
-type ONNXConfigurer interface {
-	// ONNXConfig returns the model's ONNX configuration.
-	ONNXConfig() ONNXConfig
-}
-
-// ModelMetadata describes an embedding model for UI/config.
-type ModelMetadata struct {
-	Name        string `json:"name"`
-	Version     string `json:"version"`
-	Description string `json:"description"`
-	Dimensions  int    `json:"dimensions"`
-	Default     bool   `json:"default"`
-}
-
-// ModelFactory creates a new instance of an embedding model.
-type ModelFactory func() (EmbeddingModel, error)
-
-// ModelRegistry provides model lookup by version.
-type ModelRegistry struct {
-	models       map[string]ModelFactory
-	metadata     map[string]ModelMetadata
-	defaultModel string
-	mu           sync.RWMutex
-}
-
-// NewModelRegistry creates a new model registry.
-func NewModelRegistry() *ModelRegistry {
-	return &ModelRegistry{
-		models:   make(map[string]ModelFactory),
-		metadata: make(map[string]ModelMetadata),
-	}
-}
-
-// Register adds a model factory to the registry.
-func (r *ModelRegistry) Register(meta ModelMetadata, factory ModelFactory) {
-	r.mu.Lock()
-	defer r.mu.Unlock()
-
-	r.models[meta.Version] = factory
-	r.metadata[meta.Version] = meta
-
-	if meta.Default {
-		r.defaultModel = meta.Version
-	}
-}
-
-// Get creates a new instance of the model with the given version.
-func (r *ModelRegistry) Get(version string) (EmbeddingModel, error) {
-	r.mu.RLock()
-	factory, ok := r.models[version]
-	r.mu.RUnlock()
-
-	if !ok {
-		return nil, fmt.Errorf("unknown model version: %s", version)
-	}
-
-	return factory()
-}
-
-// Default returns the default model version.
-func (r *ModelRegistry) Default() string {
-	r.mu.RLock()
-	defer r.mu.RUnlock()
-	return r.defaultModel
-}
-
-// List returns metadata for all registered models.
-func (r *ModelRegistry) List() []ModelMetadata {
-	r.mu.RLock()
-	defer r.mu.RUnlock()
-
-	result := make([]ModelMetadata, 0, len(r.metadata))
-	for _, meta := range r.metadata {
-		result = append(result, meta)
-	}
-	return result
-}
-
-// DefaultRegistry is the global model registry with all available models.
-var DefaultRegistry = NewModelRegistry()
-
-// RegisterModel adds a model to the default registry.
-func RegisterModel(meta ModelMetadata, factory ModelFactory) {
-	DefaultRegistry.Register(meta, factory)
-}
-
-// GetModel creates a model instance from the default registry.
-func GetModel(version string) (EmbeddingModel, error) {
-	return DefaultRegistry.Get(version)
-}
-
-// GetDefaultModel returns the default model version from the default registry.
-func GetDefaultModel() string {
-	return DefaultRegistry.Default()
-}
-
-// ListModels returns metadata for all models in the default registry.
-func ListModels() []ModelMetadata {
-	return DefaultRegistry.List()
-}

internal/embedding/service.go

@@ -1,4 +1,4 @@
-// Package embedding provides text embedding generation with swappable models.
+// Package embedding provides text embedding generation using all-MiniLM-L6-v2.
 package embedding
 
 import (
@@ -15,50 +15,19 @@ import (
 	ort "github.com/yalue/onnxruntime_go"
 )
 
-// EmbeddingDim is the dimension of embeddings produced by the current model.
-// Both all-MiniLM-L6-v2 and bge-small-en-v1.5 produce 384-dimensional embeddings.
+// EmbeddingDim is the dimension of embeddings produced by all-MiniLM-L6-v2.
 const EmbeddingDim = 384
 
-// Model version constants
-const (
-	// BGEModelVersion is the version string for bge-small-en-v1.5
-	BGEModelVersion = "bge-v1.5"
-	// BGEModelName is the human-readable name for bge-small-en-v1.5
-	BGEModelName = "bge-small-en-v1.5"
-	// DefaultModelVersion is the default model to use
-	DefaultModelVersion = BGEModelVersion
-)
-
-// MaxSequenceLength is the maximum token sequence length for the model.
-const MaxSequenceLength = 512
-
-// bgeONNXConfig defines the ONNX configuration for BGE models.
-// BGE outputs last_hidden_state and requires mean pooling.
-var bgeONNXConfig = ONNXConfig{
-	InputNames:  []string{"input_ids", "attention_mask", "token_type_ids"},
-	OutputNames: []string{"last_hidden_state"},
-	Pooling:     PoolingMean,
-	HiddenSize:  EmbeddingDim,
-}
-
-// bgeModel is the ONNX-based embedding model implementation.
-// Currently supports bge-small-en-v1.5 (previously all-MiniLM-L6-v2).
-type bgeModel struct {
+// Service provides thread-safe text embedding generation.
+type Service struct {
 	tk      *tokenizer.Tokenizer
 	session *ort.DynamicAdvancedSession
-	libDir  string
-	config  ONNXConfig
 	mu      sync.Mutex
+	libDir  string // temp directory containing extracted libraries
 }
 
-// Compile-time check that bgeModel implements EmbeddingModel
-var _ EmbeddingModel = (*bgeModel)(nil)
-
-// Compile-time check that bgeModel implements ONNXConfigurer
-var _ ONNXConfigurer = (*bgeModel)(nil)
-
-// newBGEModel creates a new BGE embedding model using bundled ONNX runtime and model.
-func newBGEModel() (EmbeddingModel, error) {
+// NewService creates a new embedding service using bundled ONNX runtime and model.
+func NewService() (*Service, error) {
 	// Extract ONNX runtime library to temp directory
 	libDir, err := extractONNXLibrary()
 	if err != nil {
@@ -80,41 +49,22 @@ func newBGEModel() (EmbeddingModel, error) {
 		return nil, fmt.Errorf("load tokenizer: %w", err)
 	}
 
-	// Create ONNX session using model-specific configuration
-	config := bgeONNXConfig
-	session, err := ort.NewDynamicAdvancedSessionWithONNXData(modelData, config.InputNames, config.OutputNames, nil)
+	// Create ONNX session with embedded model
+	inputNames := []string{"input_ids", "attention_mask", "token_type_ids"}
+	outputNames := []string{"sentence_embedding"}
+
+	session, err := ort.NewDynamicAdvancedSessionWithONNXData(modelData, inputNames, outputNames, nil)
 	if err != nil {
 		return nil, fmt.Errorf("create ONNX session: %w", err)
 	}
 
-	return &bgeModel{
+	return &Service{
 		tk:      tk,
 		session: session,
 		libDir:  libDir,
-		config:  config,
 	}, nil
 }
 
-// ONNXConfig returns the model's ONNX configuration.
-func (m *bgeModel) ONNXConfig() ONNXConfig {
-	return m.config
-}
-
-// Name returns the human-readable model name.
-func (m *bgeModel) Name() string {
-	return BGEModelName
-}
-
-// Version returns the short version string for storage.
-func (m *bgeModel) Version() string {
-	return BGEModelVersion
-}
-
-// Dimensions returns the embedding vector size.
-func (m *bgeModel) Dimensions() int {
-	return EmbeddingDim
-}
-
 // extractONNXLibrary extracts the embedded ONNX runtime library to a temp directory.
 // Uses content hash to avoid re-extracting if already present.
 func extractONNXLibrary() (string, error) {
@@ -157,15 +107,15 @@ func extractONNXLibrary() (string, error) {
 
 // Embed generates an embedding for a single text.
 // Returns a 384-dimensional float32 vector.
-func (m *bgeModel) Embed(text string) ([]float32, error) {
-	m.mu.Lock()
-	defer m.mu.Unlock()
+func (s *Service) Embed(text string) ([]float32, error) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
 
 	if text == "" {
 		return make([]float32, EmbeddingDim), nil
 	}
 
-	results, err := m.computeBatch([]string{text})
+	results, err := s.computeBatch([]string{text})
 	if err != nil {
 		return nil, err
 	}
@@ -177,13 +127,13 @@ func (m *bgeModel) Embed(text string) ([]float32, error) {
 
 // EmbedBatch generates embeddings for multiple texts.
 // Returns slice of 384-dimensional float32 vectors.
-func (m *bgeModel) EmbedBatch(texts []string) ([][]float32, error) {
+func (s *Service) EmbedBatch(texts []string) ([][]float32, error) {
 	if len(texts) == 0 {
 		return nil, nil
 	}
 
-	m.mu.Lock()
-	defer m.mu.Unlock()
+	s.mu.Lock()
+	defer s.mu.Unlock()
 
 	// Filter out empty texts and track indices
 	nonEmpty := make([]string, 0, len(texts))
@@ -205,7 +155,7 @@ func (m *bgeModel) EmbedBatch(texts []string) ([][]float32, error) {
 	}
 
 	// Compute embeddings for non-empty texts
-	embeddings, err := m.computeBatch(nonEmpty)
+	embeddings, err := s.computeBatch(nonEmpty)
 	if err != nil {
 		return nil, fmt.Errorf("compute batch embeddings: %w", err)
 	}
@@ -223,7 +173,7 @@ func (m *bgeModel) EmbedBatch(texts []string) ([][]float32, error) {
 }
 
 // computeBatch runs inference on a batch of texts. Must be called with lock held.
-func (m *bgeModel) computeBatch(sentences []string) ([][]float32, error) {
+func (s *Service) computeBatch(sentences []string) ([][]float32, error) {
 	if len(sentences) == 0 {
 		return nil, nil
 	}
@@ -234,57 +184,31 @@ func (m *bgeModel) computeBatch(sentences []string) ([][]float32, error) {
 		inputBatch[i] = tokenizer.NewSingleEncodeInput(tokenizer.NewRawInputSequence(sent))
 	}
 
-	encodings, err := m.tk.EncodeBatch(inputBatch, true)
+	encodings, err := s.tk.EncodeBatch(inputBatch, true)
 	if err != nil {
 		return nil, fmt.Errorf("tokenize: %w", err)
 	}
 
 	batchSize := len(encodings)
-	hiddenSize := m.config.HiddenSize
-
-	// Find max sequence length across all encodings (tokenizer may not pad uniformly)
-	// Also enforce MaxSequenceLength to prevent model errors
-	seqLength := 0
-	for _, enc := range encodings {
-		if len(enc.Ids) > seqLength {
-			seqLength = len(enc.Ids)
-		}
-	}
-	// Truncate to max model sequence length
-	if seqLength > MaxSequenceLength {
-		seqLength = MaxSequenceLength
-	}
+	seqLength := len(encodings[0].Ids)
+	hiddenSize := EmbeddingDim
 
 	inputShape := ort.NewShape(int64(batchSize), int64(seqLength))
 
-	// Create input tensors (pre-filled with zeros for padding)
+	// Create input tensors
 	inputIdsData := make([]int64, batchSize*seqLength)
 	attentionMaskData := make([]int64, batchSize*seqLength)
 	tokenTypeIdsData := make([]int64, batchSize*seqLength)
 
 	for b := 0; b < batchSize; b++ {
-		// Copy actual token data (rest remains 0 as padding)
-		// Truncate to seqLength to handle long inputs
-		copyLen := len(encodings[b].Ids)
-		if copyLen > seqLength {
-			copyLen = seqLength
+		for i, id := range encodings[b].Ids {
+			inputIdsData[b*seqLength+i] = int64(id)
 		}
-		for i := 0; i < copyLen; i++ {
-			inputIdsData[b*seqLength+i] = int64(encodings[b].Ids[i])
+		for i, mask := range encodings[b].AttentionMask {
+			attentionMaskData[b*seqLength+i] = int64(mask)
 		}
-		copyLen = len(encodings[b].AttentionMask)
-		if copyLen > seqLength {
-			copyLen = seqLength
-		}
-		for i := 0; i < copyLen; i++ {
-			attentionMaskData[b*seqLength+i] = int64(encodings[b].AttentionMask[i])
-		}
-		copyLen = len(encodings[b].TypeIds)
-		if copyLen > seqLength {
-			copyLen = seqLength
-		}
-		for i := 0; i < copyLen; i++ {
-			tokenTypeIdsData[b*seqLength+i] = int64(encodings[b].TypeIds[i])
+		for i, typeId := range encodings[b].TypeIds {
+			tokenTypeIdsData[b*seqLength+i] = int64(typeId)
 		}
 	}
 
@@ -292,145 +216,65 @@ func (m *bgeModel) computeBatch(sentences []string) ([][]float32, error) {
 	if err != nil {
 		return nil, fmt.Errorf("create input_ids tensor: %w", err)
 	}
-	defer func() { _ = inputIdsTensor.Destroy() }()
+	defer inputIdsTensor.Destroy()
 
 	attentionMaskTensor, err := ort.NewTensor(inputShape, attentionMaskData)
 	if err != nil {
 		return nil, fmt.Errorf("create attention_mask tensor: %w", err)
 	}
-	defer func() { _ = attentionMaskTensor.Destroy() }()
+	defer attentionMaskTensor.Destroy()
 
 	tokenTypeIdsTensor, err := ort.NewTensor(inputShape, tokenTypeIdsData)
 	if err != nil {
 		return nil, fmt.Errorf("create token_type_ids tensor: %w", err)
 	}
-	defer func() { _ = tokenTypeIdsTensor.Destroy() }()
+	defer tokenTypeIdsTensor.Destroy()
 
-	// Create output tensor based on pooling strategy
-	var outputShape ort.Shape
-
-	switch m.config.Pooling {
-	case PoolingNone:
-		// Direct sentence embedding output: [batch, hidden]
-		outputShape = ort.NewShape(int64(batchSize), int64(hiddenSize))
-	case PoolingMean, PoolingCLS:
-		// Token-level output: [batch, seq_len, hidden]
-		outputShape = ort.NewShape(int64(batchSize), int64(seqLength), int64(hiddenSize))
-	default:
-		outputShape = ort.NewShape(int64(batchSize), int64(hiddenSize))
-	}
-
-	outputTensor, err := ort.NewEmptyTensor[float32](outputShape)
+	sentenceOutputShape := ort.NewShape(int64(batchSize), int64(hiddenSize))
+	sentenceOutputTensor, err := ort.NewEmptyTensor[float32](sentenceOutputShape)
 	if err != nil {
 		return nil, fmt.Errorf("create output tensor: %w", err)
 	}
-	defer func() { _ = outputTensor.Destroy() }()
+	defer sentenceOutputTensor.Destroy()
 
 	// Run inference
 	inputTensors := []ort.Value{inputIdsTensor, attentionMaskTensor, tokenTypeIdsTensor}
-	outputTensors := []ort.Value{outputTensor}
+	outputTensors := []ort.Value{sentenceOutputTensor}
 
-	if err := m.session.Run(inputTensors, outputTensors); err != nil {
+	if err := s.session.Run(inputTensors, outputTensors); err != nil {
 		return nil, fmt.Errorf("run inference: %w", err)
 	}
 
-	// Extract and pool results based on strategy
-	flatOutput := outputTensor.GetData()
-
-	switch m.config.Pooling {
-	case PoolingNone:
-		// Direct output, no pooling needed
-		expectedSize := batchSize * hiddenSize
-		if len(flatOutput) != expectedSize {
-			return nil, fmt.Errorf("unexpected output size: got %d, expected %d", len(flatOutput), expectedSize)
-		}
-		results := make([][]float32, batchSize)
-		for i := 0; i < batchSize; i++ {
-			start := i * hiddenSize
-			end := start + hiddenSize
-			results[i] = make([]float32, hiddenSize)
-			copy(results[i], flatOutput[start:end])
-		}
-		return results, nil
-
-	case PoolingMean:
-		// Mean pooling over tokens (weighted by attention mask)
-		return meanPooling(flatOutput, attentionMaskData, batchSize, seqLength, hiddenSize), nil
-
-	case PoolingCLS:
-		// CLS token pooling (first token of each sequence)
-		return clsPooling(flatOutput, batchSize, seqLength, hiddenSize), nil
-
-	default:
-		return nil, fmt.Errorf("unknown pooling strategy: %s", m.config.Pooling)
+	// Extract results
+	flatOutput := sentenceOutputTensor.GetData()
+	expectedSize := batchSize * hiddenSize
+	if len(flatOutput) != expectedSize {
+		return nil, fmt.Errorf("unexpected output size: got %d, expected %d", len(flatOutput), expectedSize)
 	}
-}
 
-// meanPooling applies mean pooling over token embeddings, weighted by attention mask.
-// Input shape: [batch, seq_len, hidden], attention mask: [batch, seq_len]
-// Output shape: [batch, hidden]
-func meanPooling(embeddings []float32, attentionMask []int64, batchSize, seqLen, hiddenSize int) [][]float32 {
 	results := make([][]float32, batchSize)
-
-	for b := 0; b < batchSize; b++ {
-		result := make([]float32, hiddenSize)
-		var maskSum float32
-
-		// Sum embeddings weighted by attention mask
-		for s := 0; s < seqLen; s++ {
-			maskVal := float32(attentionMask[b*seqLen+s])
-			maskSum += maskVal
-
-			if maskVal > 0 {
-				embOffset := (b*seqLen + s) * hiddenSize
-				for h := 0; h < hiddenSize; h++ {
-					result[h] += embeddings[embOffset+h] * maskVal
-				}
-			}
-		}
-
-		// Normalize by mask sum (avoid division by zero)
-		if maskSum > 0 {
-			for h := 0; h < hiddenSize; h++ {
-				result[h] /= maskSum
-			}
-		}
-
-		results[b] = result
+	for i := 0; i < batchSize; i++ {
+		start := i * hiddenSize
+		end := start + hiddenSize
+		results[i] = make([]float32, hiddenSize)
+		copy(results[i], flatOutput[start:end])
 	}
 
-	return results
-}
-
-// clsPooling extracts the [CLS] token embedding (first token).
-// Input shape: [batch, seq_len, hidden]
-// Output shape: [batch, hidden]
-func clsPooling(embeddings []float32, batchSize, seqLen, hiddenSize int) [][]float32 {
-	results := make([][]float32, batchSize)
-
-	for b := 0; b < batchSize; b++ {
-		result := make([]float32, hiddenSize)
-		// CLS token is at position 0
-		embOffset := b * seqLen * hiddenSize
-		copy(result, embeddings[embOffset:embOffset+hiddenSize])
-		results[b] = result
-	}
-
-	return results
+	return results, nil
 }
 
 // Close releases model resources.
-func (m *bgeModel) Close() error {
-	m.mu.Lock()
-	defer m.mu.Unlock()
+func (s *Service) Close() error {
+	s.mu.Lock()
+	defer s.mu.Unlock()
 
 	var errs []error
 
-	if m.session != nil {
-		if err := m.session.Destroy(); err != nil {
+	if s.session != nil {
+		if err := s.session.Destroy(); err != nil {
 			errs = append(errs, fmt.Errorf("destroy session: %w", err))
 		}
-		m.session = nil
+		s.session = nil
 	}
 
 	if err := ort.DestroyEnvironment(); err != nil {
@@ -438,75 +282,10 @@ func (m *bgeModel) Close() error {
 	}
 
 	// Optionally clean up extracted library (leave for caching)
-	// os.RemoveAll(m.libDir)
+	// os.RemoveAll(s.libDir)
 
 	if len(errs) > 0 {
 		return errs[0]
 	}
 	return nil
 }
-
-// Register the BGE model with the default registry at init time
-func init() {
-	RegisterModel(ModelMetadata{
-		Name:        BGEModelName,
-		Version:     BGEModelVersion,
-		Dimensions:  EmbeddingDim,
-		Description: "High-quality semantic search model",
-		Default:     true,
-	}, newBGEModel)
-}
-
-// Service provides thread-safe text embedding generation with model abstraction.
-type Service struct {
-	model EmbeddingModel
-}
-
-// NewService creates a new embedding service using the default model.
-func NewService() (*Service, error) {
-	return NewServiceWithModel(DefaultModelVersion)
-}
-
-// NewServiceWithModel creates a new embedding service using the specified model.
-func NewServiceWithModel(version string) (*Service, error) {
-	if version == "" {
-		version = DefaultModelVersion
-	}
-
-	model, err := GetModel(version)
-	if err != nil {
-		return nil, fmt.Errorf("get model %s: %w", version, err)
-	}
-
-	return &Service{model: model}, nil
-}
-
-// Name returns the human-readable model name.
-func (s *Service) Name() string {
-	return s.model.Name()
-}
-
-// Version returns the short version string for storage.
-func (s *Service) Version() string {
-	return s.model.Version()
-}
-
-// Dimensions returns the embedding vector size.
-func (s *Service) Dimensions() int {
-	return s.model.Dimensions()
-}
-
-// Embed generates an embedding for a single text.
-func (s *Service) Embed(text string) ([]float32, error) {
-	return s.model.Embed(text)
-}
-
-// EmbedBatch generates embeddings for multiple texts.
-func (s *Service) EmbedBatch(texts []string) ([][]float32, error) {
-	return s.model.EmbedBatch(texts)
-}
-
-// Close releases model resources.
-func (s *Service) Close() error {
-	return s.model.Close()
-}

internal/embedding/service_test.go

@@ -22,10 +22,8 @@ func TestNewService(t *testing.T) {
 
 	defer svc.Close()
 
-	// Verify the service is properly initialized via public methods
-	assert.NotEmpty(t, svc.Name())
-	assert.NotEmpty(t, svc.Version())
-	assert.Equal(t, EmbeddingDim, svc.Dimensions())
+	assert.NotNil(t, svc.tk)
+	assert.NotNil(t, svc.session)
 }
 
 // TestEmbed_SingleText tests embedding a single text.
@@ -271,8 +269,8 @@ func TestClose(t *testing.T) {
 	err = svc.Close()
 	require.NoError(t, err)
 
-	// After close, embedding should fail (model resources released)
-	// Note: This behavior is model-specific; some models may still work after close
+	// Session should be nil after close
+	assert.Nil(t, svc.session)
 }
 
 // TestEmbedBatch_SingleItem tests batch embedding with single item.

internal/graph/edge_detector.go

@@ -1,417 +0,0 @@
-package graph
-
-import (
-	"context"
-	"fmt"
-	"math"
-
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-	"github.com/rs/zerolog/log"
-)
-
-const (
-	// SemanticSimilarityThreshold for creating semantic edges
-	SemanticSimilarityThreshold = 0.85
-
-	// MinFileOverlapForEdge minimum file overlap ratio to create edge
-	MinFileOverlapForEdge = 0.3
-
-	// MaxEdgesPerNode prevents creating too many edges
-	MaxEdgesPerNode = 20
-)
-
-// DetectEdges identifies relationships between observations
-func DetectEdges(ctx context.Context, observations []*models.Observation) ([]Edge, error) {
-	if len(observations) < 2 {
-		return nil, nil
-	}
-
-	edges := make([]Edge, 0)
-
-	// Build lookup maps for efficient detection
-	sessionMap := buildSessionMap(observations)
-	conceptMap := buildConceptMap(observations)
-	fileMap := buildFileMap(observations)
-
-	log.Info().
-		Int("observations", len(observations)).
-		Int("sessions", len(sessionMap)).
-		Int("concepts", len(conceptMap)).
-		Msg("Starting edge detection")
-
-	// Detect temporal edges (same session)
-	temporalEdges := detectTemporalEdges(sessionMap)
-	edges = append(edges, temporalEdges...)
-
-	// Detect concept edges (shared tags)
-	conceptEdges := detectConceptEdges(conceptMap)
-	edges = append(edges, conceptEdges...)
-
-	// Detect file overlap edges
-	fileEdges := detectFileOverlapEdges(fileMap, observations)
-	edges = append(edges, fileEdges...)
-
-	// Prune excessive edges per node
-	edges = pruneEdges(edges, MaxEdgesPerNode)
-
-	log.Info().
-		Int("temporal_edges", len(temporalEdges)).
-		Int("concept_edges", len(conceptEdges)).
-		Int("file_edges", len(fileEdges)).
-		Int("total_edges", len(edges)).
-		Msg("Edge detection complete")
-
-	return edges, nil
-}
-
-// buildSessionMap groups observations by SDK session
-func buildSessionMap(observations []*models.Observation) map[string][]int64 {
-	sessionMap := make(map[string][]int64)
-
-	for _, obs := range observations {
-		if obs.SDKSessionID != "" {
-			sessionMap[obs.SDKSessionID] = append(sessionMap[obs.SDKSessionID], obs.ID)
-		}
-	}
-
-	return sessionMap
-}
-
-// buildConceptMap groups observations by concept tags
-func buildConceptMap(observations []*models.Observation) map[string][]int64 {
-	conceptMap := make(map[string][]int64)
-
-	for _, obs := range observations {
-		for _, concept := range obs.Concepts {
-			conceptMap[concept] = append(conceptMap[concept], obs.ID)
-		}
-	}
-
-	return conceptMap
-}
-
-// buildFileMap maps files to observations (from both FilesRead and FilesModified)
-func buildFileMap(observations []*models.Observation) map[string][]int64 {
-	fileMap := make(map[string][]int64)
-
-	for _, obs := range observations {
-		// Add files from FilesRead
-		for _, file := range obs.FilesRead {
-			fileMap[file] = append(fileMap[file], obs.ID)
-		}
-		// Add files from FilesModified
-		for _, file := range obs.FilesModified {
-			fileMap[file] = append(fileMap[file], obs.ID)
-		}
-	}
-
-	return fileMap
-}
-
-// detectTemporalEdges creates edges between observations in the same session
-func detectTemporalEdges(sessionMap map[string][]int64) []Edge {
-	edges := make([]Edge, 0)
-
-	for _, obsIDs := range sessionMap {
-		if len(obsIDs) < 2 {
-			continue
-		}
-
-		// Create edges between consecutive observations in session
-		for i := 0; i < len(obsIDs)-1; i++ {
-			edges = append(edges, Edge{
-				FromID:   obsIDs[i],
-				ToID:     obsIDs[i+1],
-				Relation: RelationTemporal,
-				Weight:   0.8, // High weight for temporal proximity
-			})
-		}
-	}
-
-	return edges
-}
-
-// detectConceptEdges creates edges between observations sharing concepts
-func detectConceptEdges(conceptMap map[string][]int64) []Edge {
-	edges := make([]Edge, 0)
-	seen := make(map[string]bool)
-
-	for concept, obsIDs := range conceptMap {
-		if len(obsIDs) < 2 {
-			continue
-		}
-
-		// Create edges between all observations sharing this concept
-		for i := 0; i < len(obsIDs); i++ {
-			for j := i + 1; j < len(obsIDs); j++ {
-				// Use sorted pair as key to avoid duplicates
-				pairKey := edgeKey(obsIDs[i], obsIDs[j])
-				if seen[pairKey] {
-					continue
-				}
-				seen[pairKey] = true
-
-				// Weight based on concept specificity (longer = more specific)
-				weight := float32(0.5 + 0.3*math.Min(1.0, float64(len(concept))/20.0))
-
-				edges = append(edges, Edge{
-					FromID:   obsIDs[i],
-					ToID:     obsIDs[j],
-					Relation: RelationConcept,
-					Weight:   weight,
-				})
-			}
-		}
-	}
-
-	return edges
-}
-
-// detectFileOverlapEdges creates edges based on file references
-func detectFileOverlapEdges(fileMap map[string][]int64, observations []*models.Observation) []Edge {
-	edges := make([]Edge, 0)
-	seen := make(map[string]bool)
-
-	// Build observation ID to observation map for quick lookup
-	obsMap := make(map[int64]*models.Observation)
-	for _, obs := range observations {
-		obsMap[obs.ID] = obs
-	}
-
-	for _, obsIDs := range fileMap {
-		if len(obsIDs) < 2 {
-			continue
-		}
-
-		// Create edges between observations referencing same files
-		for i := 0; i < len(obsIDs); i++ {
-			for j := i + 1; j < len(obsIDs); j++ {
-				pairKey := edgeKey(obsIDs[i], obsIDs[j])
-				if seen[pairKey] {
-					continue
-				}
-				seen[pairKey] = true
-
-				// Calculate file overlap ratio
-				obs1, ok1 := obsMap[obsIDs[i]]
-				obs2, ok2 := obsMap[obsIDs[j]]
-
-				if !ok1 || !ok2 {
-					continue
-				}
-
-				// Merge FilesRead and FilesModified for both observations
-				files1 := append([]string{}, obs1.FilesRead...)
-				files1 = append(files1, obs1.FilesModified...)
-				files2 := append([]string{}, obs2.FilesRead...)
-				files2 = append(files2, obs2.FilesModified...)
-
-				overlap := calculateFileOverlap(files1, files2)
-				if overlap < MinFileOverlapForEdge {
-					continue
-				}
-
-				edges = append(edges, Edge{
-					FromID:   obsIDs[i],
-					ToID:     obsIDs[j],
-					Relation: RelationFileOverlap,
-					Weight:   overlap,
-				})
-			}
-		}
-	}
-
-	return edges
-}
-
-// calculateFileOverlap computes Jaccard similarity of file sets
-func calculateFileOverlap(files1, files2 []string) float32 {
-	if len(files1) == 0 || len(files2) == 0 {
-		return 0.0
-	}
-
-	// Convert to sets
-	set1 := make(map[string]bool)
-	for _, f := range files1 {
-		set1[f] = true
-	}
-
-	set2 := make(map[string]bool)
-	for _, f := range files2 {
-		set2[f] = true
-	}
-
-	// Count intersection
-	intersection := 0
-	for f := range set1 {
-		if set2[f] {
-			intersection++
-		}
-	}
-
-	// Jaccard similarity = intersection / union
-	union := len(set1) + len(set2) - intersection
-	if union == 0 {
-		return 0.0
-	}
-
-	return float32(intersection) / float32(union)
-}
-
-// pruneEdges limits edges per node to prevent graph explosion
-func pruneEdges(edges []Edge, maxPerNode int) []Edge {
-	if maxPerNode <= 0 {
-		return edges
-	}
-
-	// Count edges per node
-	outEdges := make(map[int64][]Edge)
-	inEdges := make(map[int64][]Edge)
-
-	for _, edge := range edges {
-		outEdges[edge.FromID] = append(outEdges[edge.FromID], edge)
-		inEdges[edge.ToID] = append(inEdges[edge.ToID], edge)
-	}
-
-	// Prune low-weight edges if node has too many
-	pruned := make([]Edge, 0, len(edges))
-	processed := make(map[string]bool)
-
-	for _, edge := range edges {
-		pairKey := edgeKey(edge.FromID, edge.ToID)
-		if processed[pairKey] {
-			continue
-		}
-		processed[pairKey] = true
-
-		// Check if either node has too many edges
-		fromCount := len(outEdges[edge.FromID])
-		toCount := len(inEdges[edge.ToID])
-
-		if fromCount <= maxPerNode && toCount <= maxPerNode {
-			pruned = append(pruned, edge)
-			continue
-		}
-
-		// Keep edge if it's high-weight (top edges for this node)
-		if shouldKeepEdge(edge, outEdges[edge.FromID], maxPerNode) {
-			pruned = append(pruned, edge)
-		}
-	}
-
-	if len(pruned) < len(edges) {
-		log.Debug().
-			Int("original", len(edges)).
-			Int("pruned", len(pruned)).
-			Int("removed", len(edges)-len(pruned)).
-			Msg("Pruned excessive edges")
-	}
-
-	return pruned
-}
-
-// shouldKeepEdge determines if edge should be kept during pruning
-func shouldKeepEdge(edge Edge, nodeEdges []Edge, maxPerNode int) bool {
-	// Sort node's edges by weight descending
-	sortedEdges := make([]Edge, len(nodeEdges))
-	copy(sortedEdges, nodeEdges)
-
-	sortEdgesByWeight(sortedEdges)
-
-	// Keep edge if it's in top maxPerNode
-	for i := 0; i < maxPerNode && i < len(sortedEdges); i++ {
-		if sortedEdges[i].FromID == edge.FromID && sortedEdges[i].ToID == edge.ToID {
-			return true
-		}
-	}
-
-	return false
-}
-
-// sortEdgesByWeight sorts edges by weight descending
-func sortEdgesByWeight(edges []Edge) {
-	// Simple bubble sort (edges are typically small per node)
-	n := len(edges)
-	for i := 0; i < n-1; i++ {
-		for j := 0; j < n-i-1; j++ {
-			if edges[j].Weight < edges[j+1].Weight {
-				edges[j], edges[j+1] = edges[j+1], edges[j]
-			}
-		}
-	}
-}
-
-// edgeKey creates a unique key for an edge pair (sorted)
-func edgeKey(id1, id2 int64) string {
-	if id1 < id2 {
-		return fmt.Sprintf("%d-%d", id1, id2)
-	}
-	return fmt.Sprintf("%d-%d", id2, id1)
-}
-
-// DetectSemanticEdges creates edges based on semantic similarity
-// This requires embeddings and is called separately when available
-func DetectSemanticEdges(ctx context.Context, observations []*models.Observation, embeddings map[int64][]float32) []Edge {
-	edges := make([]Edge, 0)
-	seen := make(map[string]bool)
-
-	// Compare all pairs (expensive, but necessary for semantic similarity)
-	for i := 0; i < len(observations); i++ {
-		emb1, ok1 := embeddings[observations[i].ID]
-		if !ok1 {
-			continue
-		}
-
-		for j := i + 1; j < len(observations); j++ {
-			emb2, ok2 := embeddings[observations[j].ID]
-			if !ok2 {
-				continue
-			}
-
-			similarity := cosineSimilarity(emb1, emb2)
-			if similarity < SemanticSimilarityThreshold {
-				continue
-			}
-
-			pairKey := edgeKey(observations[i].ID, observations[j].ID)
-			if seen[pairKey] {
-				continue
-			}
-			seen[pairKey] = true
-
-			edges = append(edges, Edge{
-				FromID:   observations[i].ID,
-				ToID:     observations[j].ID,
-				Relation: RelationSemantic,
-				Weight:   similarity,
-			})
-		}
-	}
-
-	log.Info().
-		Int("semantic_edges", len(edges)).
-		Float32("threshold", SemanticSimilarityThreshold).
-		Msg("Detected semantic edges")
-
-	return edges
-}
-
-// cosineSimilarity computes cosine similarity between two vectors
-func cosineSimilarity(a, b []float32) float32 {
-	if len(a) != len(b) {
-		return 0.0
-	}
-
-	var dotProduct, normA, normB float32
-	for i := range a {
-		dotProduct += a[i] * b[i]
-		normA += a[i] * a[i]
-		normB += b[i] * b[i]
-	}
-
-	if normA == 0 || normB == 0 {
-		return 0.0
-	}
-
-	return dotProduct / float32(math.Sqrt(float64(normA))*math.Sqrt(float64(normB)))
-}

internal/graph/observation_graph.go

@@ -1,423 +0,0 @@
-// Package graph provides observation relationship graphs for LEANN Phase 2.
-//
-// This package implements graph-based selective recomputation where observation
-// relationships (file overlap, semantic similarity, temporal proximity) form a
-// graph structure. Hub nodes (high-degree observations) store embeddings, while
-// leaf nodes recompute on-demand.
-package graph
-
-import (
-	"context"
-	"fmt"
-	"math"
-	"sort"
-	"sync"
-	"time"
-
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-	"github.com/rs/zerolog/log"
-)
-
-// RelationType defines the type of relationship between observations
-type RelationType int
-
-const (
-	// RelationFileOverlap indicates observations reference overlapping files
-	RelationFileOverlap RelationType = iota
-	// RelationSemantic indicates high semantic similarity (cosine > 0.85)
-	RelationSemantic
-	// RelationTemporal indicates observations from same session
-	RelationTemporal
-	// RelationConcept indicates shared concept tags
-	RelationConcept
-)
-
-// Edge represents a relationship between two observations
-type Edge struct {
-	FromID   int64
-	ToID     int64
-	Relation RelationType
-	Weight   float32 // 0.0-1.0, higher = stronger relationship
-}
-
-// Node represents an observation in the graph
-type Node struct {
-	Metadata    NodeMetadata
-	LastAccess  time.Time
-	StoredEmb   []float32 // Nil if recomputed on-demand
-	ID          int64
-	Degree      int // Number of edges (hub detection)
-	AccessCount int
-}
-
-// NodeMetadata contains observation metadata
-type NodeMetadata struct {
-	CreatedAt    time.Time
-	Project      string
-	Type         string
-	Title        string
-	IsSuperseded bool
-}
-
-// CSRGraph represents a graph in Compressed Sparse Row format for memory efficiency
-type CSRGraph struct {
-	RowPtr  []int32   // Node adjacency list pointers
-	ColIdx  []int32   // Edge destination IDs
-	Weights []float32 // Edge weights
-	mu      sync.RWMutex
-}
-
-// ObservationGraph manages the observation relationship graph
-type ObservationGraph struct {
-	nodes   map[int64]*Node
-	csr     *CSRGraph
-	edges   []Edge
-	nodesMu sync.RWMutex
-	edgesMu sync.RWMutex
-}
-
-// NewObservationGraph creates a new empty observation graph
-func NewObservationGraph() *ObservationGraph {
-	return &ObservationGraph{
-		nodes: make(map[int64]*Node),
-		edges: make([]Edge, 0),
-		csr:   &CSRGraph{},
-	}
-}
-
-// AddNode adds or updates a node in the graph
-func (g *ObservationGraph) AddNode(node *Node) {
-	g.nodesMu.Lock()
-	defer g.nodesMu.Unlock()
-
-	g.nodes[node.ID] = node
-}
-
-// AddEdge adds an edge to the graph
-func (g *ObservationGraph) AddEdge(edge Edge) {
-	g.edgesMu.Lock()
-	defer g.edgesMu.Unlock()
-
-	g.edges = append(g.edges, edge)
-
-	// Update degree counts
-	g.nodesMu.Lock()
-	if fromNode, ok := g.nodes[edge.FromID]; ok {
-		fromNode.Degree++
-	}
-	if toNode, ok := g.nodes[edge.ToID]; ok {
-		toNode.Degree++
-	}
-	g.nodesMu.Unlock()
-}
-
-// BuildCSR converts edge list to CSR format for efficient traversal
-func (g *ObservationGraph) BuildCSR() error {
-	g.edgesMu.RLock()
-	g.nodesMu.RLock()
-	defer g.edgesMu.RUnlock()
-	defer g.nodesMu.RUnlock()
-
-	if len(g.nodes) == 0 {
-		return fmt.Errorf("no nodes in graph")
-	}
-
-	// Create node ID to index mapping
-	nodeIDs := make([]int64, 0, len(g.nodes))
-	for id := range g.nodes {
-		nodeIDs = append(nodeIDs, id)
-	}
-	sort.Slice(nodeIDs, func(i, j int) bool {
-		return nodeIDs[i] < nodeIDs[j]
-	})
-
-	idToIdx := make(map[int64]int32)
-	for idx, id := range nodeIDs {
-		// #nosec G115 - observation count will never exceed int32 max (2.1B) in practice
-		idToIdx[id] = int32(idx)
-	}
-
-	// Count edges per node
-	edgeCounts := make([]int, len(nodeIDs))
-	for _, edge := range g.edges {
-		if fromIdx, ok := idToIdx[edge.FromID]; ok {
-			edgeCounts[fromIdx]++
-		}
-	}
-
-	// Build row pointers
-	rowPtr := make([]int32, len(nodeIDs)+1)
-	rowPtr[0] = 0
-	for i := 0; i < len(nodeIDs); i++ {
-		// #nosec G115 - edge counts per node will not exceed int32 max
-		rowPtr[i+1] = rowPtr[i] + int32(edgeCounts[i])
-	}
-
-	// Build column indices and weights
-	totalEdges := rowPtr[len(nodeIDs)]
-	colIdx := make([]int32, totalEdges)
-	weights := make([]float32, totalEdges)
-
-	// Temporary counter for filling CSR
-	currentPos := make([]int32, len(nodeIDs))
-	copy(currentPos, rowPtr[:len(nodeIDs)])
-
-	for _, edge := range g.edges {
-		fromIdx, fromOk := idToIdx[edge.FromID]
-		toIdx, toOk := idToIdx[edge.ToID]
-
-		if fromOk && toOk {
-			pos := currentPos[fromIdx]
-			colIdx[pos] = toIdx
-			weights[pos] = edge.Weight
-			currentPos[fromIdx]++
-		}
-	}
-
-	g.csr.mu.Lock()
-	g.csr.RowPtr = rowPtr
-	g.csr.ColIdx = colIdx
-	g.csr.Weights = weights
-	g.csr.mu.Unlock()
-
-	log.Info().
-		Int("nodes", len(nodeIDs)).
-		Int("edges", int(totalEdges)).
-		Msg("Built CSR graph representation")
-
-	return nil
-}
-
-// GetNeighbors returns neighboring nodes and their edge weights
-func (g *ObservationGraph) GetNeighbors(nodeID int64) ([]int64, []float32, error) {
-	g.csr.mu.RLock()
-	defer g.csr.mu.RUnlock()
-
-	// Find node index in CSR
-	g.nodesMu.RLock()
-	nodeIDs := make([]int64, 0, len(g.nodes))
-	for id := range g.nodes {
-		nodeIDs = append(nodeIDs, id)
-	}
-	g.nodesMu.RUnlock()
-
-	sort.Slice(nodeIDs, func(i, j int) bool {
-		return nodeIDs[i] < nodeIDs[j]
-	})
-
-	nodeIdx := sort.Search(len(nodeIDs), func(i int) bool {
-		return nodeIDs[i] >= nodeID
-	})
-
-	if nodeIdx >= len(nodeIDs) || nodeIDs[nodeIdx] != nodeID {
-		return nil, nil, fmt.Errorf("node %d not found", nodeID)
-	}
-
-	// Extract neighbors from CSR
-	startIdx := g.csr.RowPtr[nodeIdx]
-	endIdx := g.csr.RowPtr[nodeIdx+1]
-
-	neighborCount := endIdx - startIdx
-	neighbors := make([]int64, neighborCount)
-	weights := make([]float32, neighborCount)
-
-	for i := int32(0); i < neighborCount; i++ {
-		neighborIdx := g.csr.ColIdx[startIdx+i]
-		neighbors[i] = nodeIDs[neighborIdx]
-		weights[i] = g.csr.Weights[startIdx+i]
-	}
-
-	return neighbors, weights, nil
-}
-
-// GetNode retrieves a node by ID
-func (g *ObservationGraph) GetNode(nodeID int64) (*Node, error) {
-	g.nodesMu.RLock()
-	defer g.nodesMu.RUnlock()
-
-	node, ok := g.nodes[nodeID]
-	if !ok {
-		return nil, fmt.Errorf("node %d not found", nodeID)
-	}
-
-	return node, nil
-}
-
-// FindHubs identifies hub nodes (high degree) in the graph
-func (g *ObservationGraph) FindHubs(percentile float64) []int64 {
-	g.nodesMu.RLock()
-	defer g.nodesMu.RUnlock()
-
-	if len(g.nodes) == 0 {
-		return nil
-	}
-
-	// Collect all degrees
-	degrees := make([]int, 0, len(g.nodes))
-	nodeIDs := make([]int64, 0, len(g.nodes))
-
-	for id, node := range g.nodes {
-		degrees = append(degrees, node.Degree)
-		nodeIDs = append(nodeIDs, id)
-	}
-
-	// Sort by degree
-	type nodeDegree struct {
-		ID     int64
-		Degree int
-	}
-
-	nodeDegrees := make([]nodeDegree, len(nodeIDs))
-	for i := range nodeIDs {
-		nodeDegrees[i] = nodeDegree{
-			ID:     nodeIDs[i],
-			Degree: degrees[i],
-		}
-	}
-
-	sort.Slice(nodeDegrees, func(i, j int) bool {
-		return nodeDegrees[i].Degree > nodeDegrees[j].Degree
-	})
-
-	// Return top percentile
-	cutoff := int(math.Ceil(float64(len(nodeDegrees)) * (1.0 - percentile)))
-	if cutoff > len(nodeDegrees) {
-		cutoff = len(nodeDegrees)
-	}
-
-	hubs := make([]int64, cutoff)
-	for i := 0; i < cutoff; i++ {
-		hubs[i] = nodeDegrees[i].ID
-	}
-
-	log.Info().
-		Int("total_nodes", len(g.nodes)).
-		Int("hubs", len(hubs)).
-		Float64("percentile", percentile).
-		Msg("Identified hub nodes")
-
-	return hubs
-}
-
-// Stats returns graph statistics
-func (g *ObservationGraph) Stats() GraphStats {
-	g.nodesMu.RLock()
-	g.edgesMu.RLock()
-	defer g.nodesMu.RUnlock()
-	defer g.edgesMu.RUnlock()
-
-	stats := GraphStats{
-		NodeCount: len(g.nodes),
-		EdgeCount: len(g.edges),
-	}
-
-	if len(g.nodes) > 0 {
-		degrees := make([]int, 0, len(g.nodes))
-		for _, node := range g.nodes {
-			degrees = append(degrees, node.Degree)
-		}
-
-		sort.Ints(degrees)
-		stats.AvgDegree = float64(sum(degrees)) / float64(len(degrees))
-		stats.MaxDegree = degrees[len(degrees)-1]
-		stats.MinDegree = degrees[0]
-
-		// Median
-		mid := len(degrees) / 2
-		if len(degrees)%2 == 0 {
-			stats.MedianDegree = float64(degrees[mid-1]+degrees[mid]) / 2.0
-		} else {
-			stats.MedianDegree = float64(degrees[mid])
-		}
-	}
-
-	// Count edge types
-	stats.EdgeTypes = make(map[RelationType]int)
-	for _, edge := range g.edges {
-		stats.EdgeTypes[edge.Relation]++
-	}
-
-	return stats
-}
-
-// GraphStats contains graph statistics
-type GraphStats struct {
-	EdgeTypes    map[RelationType]int
-	AvgDegree    float64
-	MedianDegree float64
-	NodeCount    int
-	EdgeCount    int
-	MaxDegree    int
-	MinDegree    int
-}
-
-// BuildFromObservations constructs a graph from a list of observations
-func BuildFromObservations(ctx context.Context, observations []*models.Observation) (*ObservationGraph, error) {
-	graph := NewObservationGraph()
-
-	// Add nodes
-	for _, obs := range observations {
-		// Extract title from sql.NullString
-		title := ""
-		if obs.Title.Valid {
-			title = obs.Title.String
-		}
-
-		node := &Node{
-			ID:     obs.ID,
-			Degree: 0,
-			Metadata: NodeMetadata{
-				Project:      obs.Project,
-				Type:         string(obs.Type),
-				Title:        title,
-				CreatedAt:    time.UnixMilli(obs.CreatedAtEpoch),
-				IsSuperseded: obs.IsSuperseded,
-			},
-			LastAccess:  time.Now(),
-			AccessCount: 0,
-		}
-		graph.AddNode(node)
-	}
-
-	// Detect edges (will be implemented in edge_detector.go)
-	edges, err := DetectEdges(ctx, observations)
-	if err != nil {
-		return nil, fmt.Errorf("detect edges: %w", err)
-	}
-
-	for _, edge := range edges {
-		graph.AddEdge(edge)
-	}
-
-	// Build CSR representation
-	if err := graph.BuildCSR(); err != nil {
-		return nil, fmt.Errorf("build CSR: %w", err)
-	}
-
-	return graph, nil
-}
-
-// Helper function to sum integers
-func sum(values []int) int {
-	total := 0
-	for _, v := range values {
-		total += v
-	}
-	return total
-}
-
-// String returns a human-readable representation of RelationType
-func (r RelationType) String() string {
-	switch r {
-	case RelationFileOverlap:
-		return "file_overlap"
-	case RelationSemantic:
-		return "semantic"
-	case RelationTemporal:
-		return "temporal"
-	case RelationConcept:
-		return "concept"
-	default:
-		return "unknown"
-	}
-}

internal/maintenance/service.go

@@ -1,290 +0,0 @@
-// Package maintenance provides scheduled maintenance tasks for claude-mnemonic.
-package maintenance
-
-import (
-	"context"
-	"sync"
-	"time"
-
-	"github.com/lukaszraczylo/claude-mnemonic/internal/config"
-	"github.com/lukaszraczylo/claude-mnemonic/internal/db/gorm"
-	"github.com/rs/zerolog"
-)
-
-// Service handles scheduled maintenance tasks.
-type Service struct {
-	log              zerolog.Logger
-	lastRunTime      time.Time
-	promptStore      *gorm.PromptStore
-	store            *gorm.Store
-	vectorCleanupFn  func(ctx context.Context, deletedIDs []int64)
-	config           *config.Config
-	summaryStore     *gorm.SummaryStore
-	stopCh           chan struct{}
-	doneCh           chan struct{}
-	observationStore *gorm.ObservationStore
-	lastRunDuration  time.Duration
-	totalCleanedObs  int64
-	totalOptimizeRun int64
-	mu               sync.Mutex
-	running          bool
-}
-
-// NewService creates a new maintenance service.
-func NewService(
-	store *gorm.Store,
-	observationStore *gorm.ObservationStore,
-	summaryStore *gorm.SummaryStore,
-	promptStore *gorm.PromptStore,
-	vectorCleanupFn func(ctx context.Context, deletedIDs []int64),
-	cfg *config.Config,
-	log zerolog.Logger,
-) *Service {
-	return &Service{
-		store:            store,
-		observationStore: observationStore,
-		summaryStore:     summaryStore,
-		promptStore:      promptStore,
-		vectorCleanupFn:  vectorCleanupFn,
-		config:           cfg,
-		log:              log.With().Str("component", "maintenance").Logger(),
-		stopCh:           make(chan struct{}),
-		doneCh:           make(chan struct{}),
-	}
-}
-
-// Start begins the maintenance loop.
-func (s *Service) Start(ctx context.Context) {
-	s.mu.Lock()
-	if s.running {
-		s.mu.Unlock()
-		return
-	}
-	s.running = true
-	s.mu.Unlock()
-
-	defer func() {
-		s.mu.Lock()
-		s.running = false
-		s.mu.Unlock()
-		close(s.doneCh)
-	}()
-
-	if !s.config.MaintenanceEnabled {
-		s.log.Info().Msg("Maintenance disabled, not starting scheduler")
-		return
-	}
-
-	interval := max(time.Duration(s.config.MaintenanceIntervalHours)*time.Hour, time.Hour)
-
-	s.log.Info().
-		Dur("interval", interval).
-		Int("retention_days", s.config.ObservationRetentionDays).
-		Bool("cleanup_stale", s.config.CleanupStaleObservations).
-		Msg("Starting maintenance scheduler")
-
-	// Initial run after 5 minutes (allow system to stabilize)
-	time.Sleep(5 * time.Minute)
-	s.runMaintenance(ctx)
-
-	ticker := time.NewTicker(interval)
-	defer ticker.Stop()
-
-	for {
-		select {
-		case <-ctx.Done():
-			s.log.Info().Msg("Maintenance shutting down due to context cancellation")
-			return
-		case <-s.stopCh:
-			s.log.Info().Msg("Maintenance shutting down due to stop signal")
-			return
-		case <-ticker.C:
-			s.runMaintenance(ctx)
-		}
-	}
-}
-
-// Stop signals the maintenance service to stop.
-func (s *Service) Stop() {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-
-	if !s.running {
-		return
-	}
-
-	close(s.stopCh)
-}
-
-// Wait waits for the maintenance service to finish.
-func (s *Service) Wait() {
-	<-s.doneCh
-}
-
-// runMaintenance executes all maintenance tasks.
-func (s *Service) runMaintenance(ctx context.Context) {
-	start := time.Now()
-	s.log.Info().Msg("Starting maintenance run")
-
-	var totalCleaned int64
-
-	// Task 1: Clean up old observations by age
-	if s.config.ObservationRetentionDays > 0 {
-		cleaned, err := s.cleanupOldObservations(ctx)
-		if err != nil {
-			s.log.Error().Err(err).Msg("Failed to cleanup old observations")
-		} else {
-			totalCleaned += cleaned
-			s.log.Info().Int64("cleaned", cleaned).Msg("Cleaned old observations by age")
-		}
-	}
-
-	// Task 2: Clean up stale observations
-	if s.config.CleanupStaleObservations {
-		cleaned, err := s.cleanupStaleObservations(ctx)
-		if err != nil {
-			s.log.Error().Err(err).Msg("Failed to cleanup stale observations")
-		} else {
-			totalCleaned += cleaned
-			s.log.Info().Int64("cleaned", cleaned).Msg("Cleaned stale observations")
-		}
-	}
-
-	// Task 3: Optimize database
-	if err := s.store.Optimize(ctx); err != nil {
-		s.log.Error().Err(err).Msg("Failed to optimize database")
-	} else {
-		s.totalOptimizeRun++
-	}
-
-	// Task 4: Clean up old prompts (keep last 1000 per session)
-	cleanedPrompts, err := s.cleanupOldPrompts(ctx)
-	if err != nil {
-		s.log.Error().Err(err).Msg("Failed to cleanup old prompts")
-	} else if cleanedPrompts > 0 {
-		s.log.Info().Int64("cleaned", cleanedPrompts).Msg("Cleaned old prompts")
-	}
-
-	// Update metrics
-	s.mu.Lock()
-	s.lastRunTime = time.Now()
-	s.lastRunDuration = time.Since(start)
-	s.totalCleanedObs += totalCleaned
-	s.mu.Unlock()
-
-	s.log.Info().
-		Dur("duration", time.Since(start)).
-		Int64("observations_cleaned", totalCleaned).
-		Msg("Maintenance run completed")
-}
-
-// cleanupOldObservations deletes observations older than the retention period.
-func (s *Service) cleanupOldObservations(ctx context.Context) (int64, error) {
-	cutoffEpoch := time.Now().AddDate(0, 0, -s.config.ObservationRetentionDays).Unix()
-
-	// Get IDs of old observations
-	var deletedIDs []int64
-	err := s.store.GetDB().WithContext(ctx).
-		Model(&gorm.Observation{}).
-		Where("created_at_epoch < ?", cutoffEpoch).
-		Pluck("id", &deletedIDs).Error
-	if err != nil {
-		return 0, err
-	}
-
-	if len(deletedIDs) == 0 {
-		return 0, nil
-	}
-
-	// Delete in batches to avoid long transactions
-	batchSize := 100
-	for i := 0; i < len(deletedIDs); i += batchSize {
-		end := min(i+batchSize, len(deletedIDs))
-		batch := deletedIDs[i:end]
-
-		if err := s.store.GetDB().WithContext(ctx).
-			Where("id IN ?", batch).
-			Delete(&gorm.Observation{}).Error; err != nil {
-			return int64(i), err
-		}
-
-		// Sync vector DB deletions
-		if s.vectorCleanupFn != nil {
-			s.vectorCleanupFn(ctx, batch)
-		}
-	}
-
-	return int64(len(deletedIDs)), nil
-}
-
-// cleanupStaleObservations deletes observations marked as stale.
-func (s *Service) cleanupStaleObservations(ctx context.Context) (int64, error) {
-	// Get IDs of stale observations (is_superseded = true)
-	var deletedIDs []int64
-	err := s.store.GetDB().WithContext(ctx).
-		Model(&gorm.Observation{}).
-		Where("is_superseded = ?", true).
-		Pluck("id", &deletedIDs).Error
-	if err != nil {
-		return 0, err
-	}
-
-	if len(deletedIDs) == 0 {
-		return 0, nil
-	}
-
-	// Delete in batches
-	batchSize := 100
-	for i := 0; i < len(deletedIDs); i += batchSize {
-		end := min(i+batchSize, len(deletedIDs))
-		batch := deletedIDs[i:end]
-
-		if err := s.store.GetDB().WithContext(ctx).
-			Where("id IN ?", batch).
-			Delete(&gorm.Observation{}).Error; err != nil {
-			return int64(i), err
-		}
-
-		// Sync vector DB deletions
-		if s.vectorCleanupFn != nil {
-			s.vectorCleanupFn(ctx, batch)
-		}
-	}
-
-	return int64(len(deletedIDs)), nil
-}
-
-// cleanupOldPrompts removes old prompts keeping only the most recent per session.
-func (s *Service) cleanupOldPrompts(ctx context.Context) (int64, error) {
-	// Delete prompts older than 30 days that aren't the most recent in their session
-	cutoffEpoch := time.Now().AddDate(0, 0, -30).Unix()
-
-	result := s.store.GetDB().WithContext(ctx).
-		Where("created_at_epoch < ?", cutoffEpoch).
-		Delete(&gorm.UserPrompt{})
-
-	return result.RowsAffected, result.Error
-}
-
-// Stats returns maintenance statistics.
-func (s *Service) Stats() map[string]any {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-
-	return map[string]any{
-		"enabled":           s.config.MaintenanceEnabled,
-		"interval_hours":    s.config.MaintenanceIntervalHours,
-		"retention_days":    s.config.ObservationRetentionDays,
-		"cleanup_stale":     s.config.CleanupStaleObservations,
-		"last_run":          s.lastRunTime,
-		"last_duration_ms":  s.lastRunDuration.Milliseconds(),
-		"total_cleaned_obs": s.totalCleanedObs,
-		"total_optimizes":   s.totalOptimizeRun,
-		"running":           s.running,
-	}
-}
-
-// RunNow triggers an immediate maintenance run.
-func (s *Service) RunNow(ctx context.Context) {
-	go s.runMaintenance(ctx)
-}

internal/pattern/detector.go

@@ -1,499 +0,0 @@
-// Package pattern provides pattern detection and recognition functionality.
-package pattern
-
-import (
-	"context"
-	"fmt"
-	"sort"
-	"strings"
-	"sync"
-	"time"
-
-	"github.com/lukaszraczylo/claude-mnemonic/internal/db/gorm"
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-	"github.com/rs/zerolog/log"
-)
-
-// DetectorConfig contains configuration for the pattern detector.
-type DetectorConfig struct {
-	// MinMatchScore is the minimum similarity score to consider a match (0.0-1.0).
-	MinMatchScore float64
-	// MinFrequencyForPattern is the minimum occurrences before creating a pattern.
-	MinFrequencyForPattern int
-	// AnalysisInterval is how often to run background pattern analysis.
-	AnalysisInterval time.Duration
-	// MaxPatternsToTrack is the maximum number of active patterns.
-	MaxPatternsToTrack int
-	// MaxCandidates is the maximum number of candidates to track (LRU eviction).
-	MaxCandidates int
-}
-
-// DefaultConfig returns the default detector configuration.
-func DefaultConfig() DetectorConfig {
-	return DetectorConfig{
-		MinMatchScore:          0.3, // 30% similarity threshold
-		MinFrequencyForPattern: 2,   // At least 2 occurrences to form a pattern
-		AnalysisInterval:       5 * time.Minute,
-		MaxPatternsToTrack:     1000,
-		MaxCandidates:          500, // Prevent unbounded growth
-	}
-}
-
-// PatternSyncFunc is a callback for syncing patterns to vector store.
-type PatternSyncFunc func(pattern *models.Pattern)
-
-// Detector detects and tracks recurring patterns across observations.
-type Detector struct {
-	ctx              context.Context
-	patternStore     *gorm.PatternStore
-	observationStore *gorm.ObservationStore
-	syncFunc         PatternSyncFunc
-	candidates       map[string]*candidatePattern
-	cancel           context.CancelFunc
-	config           DetectorConfig
-	wg               sync.WaitGroup
-	candidatesMu     sync.RWMutex
-}
-
-// SetSyncFunc sets the callback for syncing patterns to vector store.
-func (d *Detector) SetSyncFunc(fn PatternSyncFunc) {
-	d.syncFunc = fn
-}
-
-// candidatePattern tracks a potential pattern before it reaches frequency threshold.
-type candidatePattern struct {
-	patternType    models.PatternType
-	title          string
-	signature      []string
-	observationIDs []int64
-	projects       []string
-	lastSeenEpoch  int64
-}
-
-// NewDetector creates a new pattern detector.
-func NewDetector(patternStore *gorm.PatternStore, observationStore *gorm.ObservationStore, config DetectorConfig) *Detector {
-	ctx, cancel := context.WithCancel(context.Background())
-	return &Detector{
-		config:           config,
-		patternStore:     patternStore,
-		observationStore: observationStore,
-		candidates:       make(map[string]*candidatePattern),
-		ctx:              ctx,
-		cancel:           cancel,
-	}
-}
-
-// Start begins background pattern analysis.
-func (d *Detector) Start() {
-	d.wg.Add(1)
-	go d.backgroundAnalysis()
-	log.Info().Dur("interval", d.config.AnalysisInterval).Msg("Pattern detector started")
-}
-
-// Stop stops background pattern analysis.
-func (d *Detector) Stop() {
-	d.cancel()
-	d.wg.Wait()
-	log.Info().Msg("Pattern detector stopped")
-}
-
-// backgroundAnalysis runs periodic pattern analysis.
-func (d *Detector) backgroundAnalysis() {
-	defer d.wg.Done()
-
-	ticker := time.NewTicker(d.config.AnalysisInterval)
-	defer ticker.Stop()
-
-	for {
-		select {
-		case <-d.ctx.Done():
-			return
-		case <-ticker.C:
-			if err := d.AnalyzeRecentObservations(d.ctx); err != nil {
-				log.Warn().Err(err).Msg("Background pattern analysis failed")
-			}
-		}
-	}
-}
-
-// AnalyzeObservation processes a new observation for pattern detection.
-// This is called synchronously when a new observation is stored.
-func (d *Detector) AnalyzeObservation(ctx context.Context, obs *models.Observation) (*DetectionResult, error) {
-	result := &DetectionResult{}
-
-	// Extract signature from observation
-	signature := models.ExtractSignature(
-		obs.Concepts,
-		obs.Title.String,
-		obs.Narrative.String,
-	)
-	if len(signature) == 0 {
-		return result, nil // Nothing to detect
-	}
-
-	// Check against existing patterns
-	matches, err := d.patternStore.FindMatchingPatterns(ctx, signature, d.config.MinMatchScore)
-	if err != nil {
-		return nil, err
-	}
-
-	if len(matches) > 0 {
-		// Found existing pattern match
-		bestMatch := matches[0]
-		for _, m := range matches[1:] {
-			if models.CalculateMatchScore(signature, m.Signature) > models.CalculateMatchScore(signature, bestMatch.Signature) {
-				bestMatch = m
-			}
-		}
-
-		// Update the pattern with new occurrence
-		if err := d.patternStore.IncrementPatternFrequency(ctx, bestMatch.ID, obs.Project, obs.ID); err != nil {
-			log.Warn().Err(err).Int64("pattern_id", bestMatch.ID).Msg("Failed to update pattern frequency")
-		}
-
-		result.MatchedPattern = bestMatch
-		result.MatchScore = models.CalculateMatchScore(signature, bestMatch.Signature)
-		result.IsNewPattern = false
-
-		log.Debug().
-			Int64("pattern_id", bestMatch.ID).
-			Str("pattern_name", bestMatch.Name).
-			Float64("score", result.MatchScore).
-			Msg("Observation matched existing pattern")
-
-		return result, nil
-	}
-
-	// No existing pattern match - check candidates
-	candidateKey := generateCandidateKey(signature)
-	d.candidatesMu.Lock()
-	defer d.candidatesMu.Unlock()
-
-	if candidate, exists := d.candidates[candidateKey]; exists {
-		// Update existing candidate
-		candidate.observationIDs = append(candidate.observationIDs, obs.ID)
-
-		// Add project if not already present
-		found := false
-		for _, p := range candidate.projects {
-			if p == obs.Project {
-				found = true
-				break
-			}
-		}
-		if !found {
-			candidate.projects = append(candidate.projects, obs.Project)
-		}
-		candidate.lastSeenEpoch = time.Now().UnixMilli()
-
-		// Check if candidate should be promoted to pattern
-		if len(candidate.observationIDs) >= d.config.MinFrequencyForPattern {
-			pattern, err := d.promoteCandidate(ctx, candidateKey, candidate)
-			if err != nil {
-				log.Warn().Err(err).Msg("Failed to promote candidate to pattern")
-			} else {
-				result.MatchedPattern = pattern
-				result.IsNewPattern = true
-				log.Info().
-					Str("pattern_name", pattern.Name).
-					Int("frequency", pattern.Frequency).
-					Msg("New pattern detected and stored")
-			}
-		}
-	} else {
-		// Create new candidate - with immediate size check to prevent unbounded growth
-		// between periodic cleanups (which run every 5 minutes)
-		if d.config.MaxCandidates > 0 && len(d.candidates) >= d.config.MaxCandidates {
-			// Evict oldest candidate immediately rather than waiting for periodic cleanup
-			var oldestKey string
-			var oldestTime int64 = time.Now().UnixMilli()
-			for k, c := range d.candidates {
-				if c.lastSeenEpoch < oldestTime {
-					oldestTime = c.lastSeenEpoch
-					oldestKey = k
-				}
-			}
-			if oldestKey != "" {
-				delete(d.candidates, oldestKey)
-				log.Debug().Str("evicted_key", oldestKey).Msg("Evicted oldest candidate to make room")
-			}
-		}
-
-		patternType := models.DetectPatternType(obs.Concepts, obs.Title.String, obs.Narrative.String)
-		d.candidates[candidateKey] = &candidatePattern{
-			signature:      signature,
-			observationIDs: []int64{obs.ID},
-			projects:       []string{obs.Project},
-			patternType:    patternType,
-			title:          obs.Title.String,
-			lastSeenEpoch:  time.Now().UnixMilli(),
-		}
-		log.Debug().
-			Str("candidate_key", candidateKey).
-			Strs("signature", signature).
-			Msg("New pattern candidate created")
-	}
-
-	return result, nil
-}
-
-// promoteCandidate converts a candidate to a stored pattern.
-func (d *Detector) promoteCandidate(ctx context.Context, key string, candidate *candidatePattern) (*models.Pattern, error) {
-	// Generate pattern name from signature
-	name := generatePatternName(candidate.patternType, candidate.signature, candidate.title)
-
-	// Create base pattern using NewPattern with first observation
-	firstProject := ""
-	if len(candidate.projects) > 0 {
-		firstProject = candidate.projects[0]
-	}
-	var firstObsID int64
-	if len(candidate.observationIDs) > 0 {
-		firstObsID = candidate.observationIDs[0]
-	}
-	pattern := models.NewPattern(
-		name,
-		candidate.patternType,
-		"Automatically detected pattern from recurring observations",
-		candidate.signature,
-		firstProject,
-		firstObsID,
-	)
-
-	// Add remaining projects and observations
-	for i := 1; i < len(candidate.projects); i++ {
-		pattern.Projects = append(pattern.Projects, candidate.projects[i])
-	}
-	for i := 1; i < len(candidate.observationIDs); i++ {
-		pattern.ObservationIDs = append(pattern.ObservationIDs, candidate.observationIDs[i])
-	}
-	pattern.Frequency = len(candidate.observationIDs)
-
-	id, err := d.patternStore.StorePattern(ctx, pattern)
-	if err != nil {
-		return nil, err
-	}
-	pattern.ID = id
-
-	// Sync to vector store if callback is set
-	if d.syncFunc != nil {
-		d.syncFunc(pattern)
-	}
-
-	// Remove from candidates
-	delete(d.candidates, key)
-
-	return pattern, nil
-}
-
-// AnalyzeRecentObservations analyzes recent observations for pattern detection.
-// This is used for background batch analysis.
-func (d *Detector) AnalyzeRecentObservations(ctx context.Context) error {
-	// Get observations from the last 24 hours that haven't been analyzed
-	observations, err := d.observationStore.GetRecentObservations(ctx, "", 100)
-	if err != nil {
-		return err
-	}
-
-	analyzed := 0
-	patternsFound := 0
-	for _, obs := range observations {
-		result, err := d.AnalyzeObservation(ctx, obs)
-		if err != nil {
-			log.Warn().Err(err).Int64("obs_id", obs.ID).Msg("Failed to analyze observation")
-			continue
-		}
-		analyzed++
-		if result.MatchedPattern != nil {
-			patternsFound++
-		}
-	}
-
-	if analyzed > 0 {
-		log.Info().
-			Int("analyzed", analyzed).
-			Int("patterns_found", patternsFound).
-			Msg("Background pattern analysis completed")
-	}
-
-	// Clean up old candidates (older than 7 days)
-	d.cleanupOldCandidates()
-
-	return nil
-}
-
-// cleanupOldCandidates removes candidates that haven't been seen recently
-// and enforces the max candidates limit using LRU eviction.
-func (d *Detector) cleanupOldCandidates() {
-	d.candidatesMu.Lock()
-	defer d.candidatesMu.Unlock()
-
-	threshold := time.Now().Add(-7 * 24 * time.Hour).UnixMilli()
-
-	// First pass: remove expired candidates
-	for key, candidate := range d.candidates {
-		if candidate.lastSeenEpoch < threshold {
-			delete(d.candidates, key)
-		}
-	}
-
-	// Second pass: enforce max candidates limit using LRU eviction
-	if d.config.MaxCandidates > 0 && len(d.candidates) > d.config.MaxCandidates {
-		// Find oldest candidates to evict using O(n log n) sort instead of O(n²) selection sort
-		type keyAge struct {
-			key string
-			age int64
-		}
-		candidates := make([]keyAge, 0, len(d.candidates))
-		for k, c := range d.candidates {
-			candidates = append(candidates, keyAge{k, c.lastSeenEpoch})
-		}
-
-		// Sort by age ascending (oldest first) - O(n log n)
-		sort.Slice(candidates, func(i, j int) bool {
-			return candidates[i].age < candidates[j].age
-		})
-
-		// Delete oldest entries
-		toEvict := len(d.candidates) - d.config.MaxCandidates
-		for i := 0; i < toEvict; i++ {
-			delete(d.candidates, candidates[i].key)
-		}
-
-		log.Debug().Int("evicted", toEvict).Int("remaining", len(d.candidates)).Msg("Evicted old pattern candidates (LRU)")
-	}
-}
-
-// CandidateCount returns the current number of pattern candidates.
-func (d *Detector) CandidateCount() int {
-	d.candidatesMu.RLock()
-	defer d.candidatesMu.RUnlock()
-	return len(d.candidates)
-}
-
-// GetPatternInsight returns a formatted insight string for a pattern.
-// GetPatternInsight returns a formatted insight string for a pattern.
-func (d *Detector) GetPatternInsight(ctx context.Context, patternID int64) (string, error) {
-	pattern, err := d.patternStore.GetPatternByID(ctx, patternID)
-	if err != nil {
-		return "", err
-	}
-	if pattern == nil {
-		return "", fmt.Errorf("pattern not found: %d", patternID)
-	}
-
-	return formatPatternInsight(pattern), nil
-}
-
-// DetectionResult contains the result of pattern detection.
-type DetectionResult struct {
-	MatchedPattern *models.Pattern
-	MatchScore     float64
-	IsNewPattern   bool
-}
-
-// generateCandidateKey creates a unique key for a signature.
-func generateCandidateKey(signature []string) string {
-	if len(signature) == 0 {
-		return ""
-	}
-	// Use strings.Builder to avoid O(n²) string concatenation
-	var b strings.Builder
-	// Pre-allocate: estimate average signature element is 10 chars + separator
-	b.Grow(len(signature) * 11)
-	for _, s := range signature {
-		b.WriteString(s)
-		b.WriteByte('|')
-	}
-	return b.String()
-}
-
-// generatePatternName creates a human-readable name for a pattern.
-func generatePatternName(patternType models.PatternType, signature []string, title string) string {
-	// Use title if available and meaningful
-	if title != "" && len(title) < 60 {
-		return title
-	}
-
-	// Otherwise generate from type and signature
-	prefix := ""
-	switch patternType {
-	case models.PatternTypeBug:
-		prefix = "Bug Pattern: "
-	case models.PatternTypeRefactor:
-		prefix = "Refactor Pattern: "
-	case models.PatternTypeArchitecture:
-		prefix = "Architecture Pattern: "
-	case models.PatternTypeAntiPattern:
-		prefix = "Anti-Pattern: "
-	case models.PatternTypeBestPractice:
-		prefix = "Best Practice: "
-	}
-
-	// Use first few signature elements
-	if len(signature) > 0 {
-		name := prefix
-		for i, s := range signature {
-			if i >= 3 {
-				break
-			}
-			if i > 0 {
-				name += ", "
-			}
-			name += s
-		}
-		return name
-	}
-
-	return prefix + "Unnamed"
-}
-
-// formatPatternInsight creates a human-readable insight from a pattern.
-func formatPatternInsight(pattern *models.Pattern) string {
-	insight := "I've encountered this pattern " +
-		itoa(pattern.Frequency) + " times"
-
-	if len(pattern.Projects) > 1 {
-		insight += " across " + itoa(len(pattern.Projects)) + " projects"
-	}
-
-	insight += ". "
-
-	if pattern.Recommendation.Valid && pattern.Recommendation.String != "" {
-		insight += "What works: " + pattern.Recommendation.String
-	} else {
-		switch pattern.Type {
-		case models.PatternTypeBug:
-			insight += "This appears to be a recurring bug pattern."
-		case models.PatternTypeAntiPattern:
-			insight += "This is an identified anti-pattern to avoid."
-		case models.PatternTypeBestPractice:
-			insight += "This is a validated best practice."
-		default:
-			insight += "This is a recognized pattern in the codebase."
-		}
-	}
-
-	return insight
-}
-
-// itoa converts int to string without importing strconv.
-func itoa(n int) string {
-	if n == 0 {
-		return "0"
-	}
-	negative := false
-	if n < 0 {
-		negative = true
-		n = -n
-	}
-	var digits []byte
-	for n > 0 {
-		digits = append([]byte{byte('0' + n%10)}, digits...)
-		n /= 10
-	}
-	if negative {
-		digits = append([]byte{'-'}, digits...)
-	}
-	return string(digits)
-}

internal/privacy/secrets.go

@@ -1,98 +0,0 @@
-// Package privacy provides utilities for protecting sensitive data.
-package privacy
-
-import (
-	"regexp"
-	"slices"
-	"strings"
-)
-
-// secretPatterns contains compiled regular expressions for detecting secrets.
-// These patterns are designed to catch common secret formats with minimal false positives.
-var secretPatterns = []*regexp.Regexp{
-	// API keys with common prefixes
-	regexp.MustCompile(`(?i)(api[_-]?key|apikey)\s*[:=]\s*['"]?[a-zA-Z0-9_-]{20,}['"]?`),
-
-	// Passwords in configuration
-	regexp.MustCompile(`(?i)(password|passwd|pwd)\s*[:=]\s*['"][^'"]{8,}['"]`),
-
-	// Secret tokens
-	regexp.MustCompile(`(?i)(secret[_-]?key|secret[_-]?token|auth[_-]?token)\s*[:=]\s*['"]?[a-zA-Z0-9_-]{20,}['"]?`),
-
-	// OpenAI API keys
-	regexp.MustCompile(`sk-[a-zA-Z0-9]{20,}`),
-
-	// Anthropic API keys
-	regexp.MustCompile(`sk-ant-[a-zA-Z0-9-]{20,}`),
-
-	// GitHub tokens
-	regexp.MustCompile(`gh[pous]_[a-zA-Z0-9]{36,}`),
-	regexp.MustCompile(`github_pat_[a-zA-Z0-9_]{22,}`),
-
-	// AWS keys
-	regexp.MustCompile(`AKIA[0-9A-Z]{16}`),
-	regexp.MustCompile(`(?i)aws[_-]?secret[_-]?access[_-]?key\s*[:=]\s*['"]?[a-zA-Z0-9/+=]{40}['"]?`),
-
-	// Private keys (PEM format indicators)
-	regexp.MustCompile(`-----BEGIN (RSA |EC |DSA |OPENSSH )?PRIVATE KEY-----`),
-
-	// JWT tokens (base64.base64.base64 format)
-	regexp.MustCompile(`eyJ[a-zA-Z0-9_-]+\.eyJ[a-zA-Z0-9_-]+\.[a-zA-Z0-9_-]+`),
-
-	// Generic secret assignment patterns
-	regexp.MustCompile(`(?i)bearer\s+[a-zA-Z0-9_-]{20,}`),
-}
-
-// ContainsSecrets checks if the given text contains any patterns that look like secrets.
-// Returns true if potential secrets are detected.
-func ContainsSecrets(text string) bool {
-	if text == "" {
-		return false
-	}
-
-	for _, pattern := range secretPatterns {
-		if pattern.MatchString(text) {
-			return true
-		}
-	}
-	return false
-}
-
-// RedactSecrets replaces detected secrets with a redaction marker.
-// This allows the text to be stored while protecting sensitive data.
-func RedactSecrets(text string) string {
-	if text == "" {
-		return text
-	}
-
-	result := text
-	for _, pattern := range secretPatterns {
-		result = pattern.ReplaceAllStringFunc(result, func(match string) string {
-			// Preserve the key name, redact only the value
-			if idx := strings.Index(match, "="); idx != -1 {
-				return match[:idx+1] + "[REDACTED]"
-			}
-			if idx := strings.Index(match, ":"); idx != -1 {
-				return match[:idx+1] + "[REDACTED]"
-			}
-			// For standalone secrets, show just the prefix
-			if len(match) > 8 {
-				return match[:4] + "...[REDACTED]"
-			}
-			return "[REDACTED]"
-		})
-	}
-	return result
-}
-
-// SanitizeObservation checks multiple fields of an observation for secrets.
-// Returns true if any secrets were found.
-// This function is used as a validation gate before storing observations.
-func SanitizeObservation(narrative string, facts []string) bool {
-	if ContainsSecrets(narrative) {
-		return true
-	}
-	return slices.ContainsFunc(facts, func(fact string) bool {
-		return ContainsSecrets(fact)
-	})
-}

internal/privacy/secrets_test.go

@@ -1,213 +0,0 @@
-package privacy
-
-import (
-	"testing"
-)
-
-func TestContainsSecrets(t *testing.T) {
-	tests := []struct {
-		name     string
-		input    string
-		expected bool
-	}{
-		{
-			name:     "empty string",
-			input:    "",
-			expected: false,
-		},
-		{
-			name:     "normal text",
-			input:    "This is just some regular text about a bug fix",
-			expected: false,
-		},
-		{
-			name:     "API key pattern",
-			input:    "api_key=abc123def456ghi789jkl012mno345pqr678",
-			expected: true,
-		},
-		{
-			name:     "api-key with dash",
-			input:    `api-key: "abc123def456ghi789jkl012mno"`,
-			expected: true,
-		},
-		{
-			name:     "password in config",
-			input:    `password="super_secret_password_123"`,
-			expected: true,
-		},
-		{
-			name:     "OpenAI key format",
-			input:    "sk-abc123def456ghi789jkl012mno345pqr678",
-			expected: true,
-		},
-		{
-			name:     "Anthropic key format",
-			input:    "sk-ant-api03-abc123def456ghi789jkl012mno345",
-			expected: true,
-		},
-		{
-			name:     "GitHub PAT",
-			input:    "ghp_1234567890abcdefghijklmnopqrstuvwxyz",
-			expected: true,
-		},
-		{
-			name:     "GitHub PAT new format",
-			input:    "github_pat_12ABCDEFGHIJ3456789abc_defghijklmno",
-			expected: true,
-		},
-		{
-			name:     "AWS access key",
-			input:    "AKIAIOSFODNN7EXAMPLE",
-			expected: true,
-		},
-		{
-			name:     "Private key header",
-			input:    "-----BEGIN RSA PRIVATE KEY-----",
-			expected: true,
-		},
-		{
-			name:     "JWT token",
-			input:    "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIn0.dozjgNryP4J3jVmNHl0w5N_XgL0n3I9PlFUP0THsR8U",
-			expected: true,
-		},
-		{
-			name:     "bearer token",
-			input:    "Bearer abc123def456ghi789jkl012mno345",
-			expected: true,
-		},
-		{
-			name:     "secret_key in code",
-			input:    `secret_key = "my_super_secret_token_here"`,
-			expected: true,
-		},
-		{
-			name:     "short password is not detected",
-			input:    `password="short"`,
-			expected: false, // Too short to trigger
-		},
-		{
-			name:     "word password in sentence",
-			input:    "The password field should be validated",
-			expected: false,
-		},
-		{
-			name:     "word api in code",
-			input:    "The API returns JSON data",
-			expected: false,
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			result := ContainsSecrets(tt.input)
-			if result != tt.expected {
-				t.Errorf("ContainsSecrets(%q) = %v, want %v", tt.input, result, tt.expected)
-			}
-		})
-	}
-}
-
-func TestRedactSecrets(t *testing.T) {
-	tests := []struct {
-		name     string
-		input    string
-		expected string
-	}{
-		{
-			name:     "empty string",
-			input:    "",
-			expected: "",
-		},
-		{
-			name:     "no secrets",
-			input:    "This is safe text",
-			expected: "This is safe text",
-		},
-		{
-			name:     "API key gets redacted",
-			input:    "api_key=abc123def456ghi789jkl012mno345pqr678",
-			expected: "api_key=[REDACTED]",
-		},
-		{
-			name:     "OpenAI key gets redacted",
-			input:    "The key is sk-abc123def456ghi789jkl012mno345pqr678",
-			expected: "The key is sk-a...[REDACTED]",
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			result := RedactSecrets(tt.input)
-			if result != tt.expected {
-				t.Errorf("RedactSecrets(%q) = %q, want %q", tt.input, result, tt.expected)
-			}
-		})
-	}
-}
-
-func TestSanitizeObservation(t *testing.T) {
-	tests := []struct {
-		name      string
-		narrative string
-		facts     []string
-		expected  bool
-	}{
-		{
-			name:      "clean observation",
-			narrative: "Fixed a bug in the login flow",
-			facts:     []string{"Users can now log in", "Session management improved"},
-			expected:  false,
-		},
-		{
-			name:      "secret in narrative",
-			narrative: "Set API key api_key=abc123def456ghi789jkl012mno345",
-			facts:     []string{"Configuration updated"},
-			expected:  true,
-		},
-		{
-			name:      "secret in facts",
-			narrative: "Updated configuration",
-			facts:     []string{"Added api_key=abc123def456ghi789jkl012mno345"},
-			expected:  true,
-		},
-		{
-			name:      "empty facts",
-			narrative: "Clean narrative",
-			facts:     []string{},
-			expected:  false,
-		},
-		{
-			name:      "nil facts",
-			narrative: "Clean narrative",
-			facts:     nil,
-			expected:  false,
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			result := SanitizeObservation(tt.narrative, tt.facts)
-			if result != tt.expected {
-				t.Errorf("SanitizeObservation() = %v, want %v", result, tt.expected)
-			}
-		})
-	}
-}
-
-func BenchmarkContainsSecrets(b *testing.B) {
-	text := "This is a normal piece of text that does not contain any secrets or sensitive information"
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		ContainsSecrets(text)
-	}
-}
-
-func BenchmarkContainsSecretsWithSecret(b *testing.B) {
-	text := "api_key=abc123def456ghi789jkl012mno345pqr678"
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		ContainsSecrets(text)
-	}
-}

internal/reranking/assets.go

@@ -1,14 +0,0 @@
-// Package reranking provides cross-encoder reranking for search results.
-package reranking
-
-import (
-	_ "embed"
-)
-
-// Cross-encoder model and tokenizer files - embedded for all platforms
-//
-//go:embed assets/model.onnx
-var crossEncoderModelData []byte
-
-//go:embed assets/tokenizer.json
-var crossEncoderTokenizerData []byte

internal/reranking/assets/tokenizer_config.json

@@ -1,57 +0,0 @@
-{
-  "added_tokens_decoder": {
-    "0": {
-      "content": "[PAD]",
-      "lstrip": false,
-      "normalized": false,
-      "rstrip": false,
-      "single_word": false,
-      "special": true
-    },
-    "100": {
-      "content": "[UNK]",
-      "lstrip": false,
-      "normalized": false,
-      "rstrip": false,
-      "single_word": false,
-      "special": true
-    },
-    "101": {
-      "content": "[CLS]",
-      "lstrip": false,
-      "normalized": false,
-      "rstrip": false,
-      "single_word": false,
-      "special": true
-    },
-    "102": {
-      "content": "[SEP]",
-      "lstrip": false,
-      "normalized": false,
-      "rstrip": false,
-      "single_word": false,
-      "special": true
-    },
-    "103": {
-      "content": "[MASK]",
-      "lstrip": false,
-      "normalized": false,
-      "rstrip": false,
-      "single_word": false,
-      "special": true
-    }
-  },
-  "clean_up_tokenization_spaces": true,
-  "cls_token": "[CLS]",
-  "do_basic_tokenize": true,
-  "do_lower_case": true,
-  "mask_token": "[MASK]",
-  "model_max_length": 512,
-  "never_split": null,
-  "pad_token": "[PAD]",
-  "sep_token": "[SEP]",
-  "strip_accents": null,
-  "tokenize_chinese_chars": true,
-  "tokenizer_class": "BertTokenizer",
-  "unk_token": "[UNK]"
-}

internal/reranking/service.go

@@ -1,380 +0,0 @@
-// Package reranking provides cross-encoder reranking for search results.
-// Uses MS-MARCO MiniLM L6 v2 cross-encoder model for relevance scoring.
-package reranking
-
-import (
-	"bytes"
-	"fmt"
-	"math"
-	"sort"
-	"sync"
-
-	"github.com/rs/zerolog/log"
-	"github.com/sugarme/tokenizer"
-	"github.com/sugarme/tokenizer/pretrained"
-	ort "github.com/yalue/onnxruntime_go"
-)
-
-const (
-	// ModelName is the human-readable name for the cross-encoder model
-	ModelName = "ms-marco-MiniLM-L6-v2"
-	// ModelVersion is the short version string for identification
-	ModelVersion = "msmarco-v2"
-	// MaxSequenceLength is the maximum combined query+document token length
-	MaxSequenceLength = 512
-	// DefaultCandidateLimit is the default number of candidates to rerank
-	DefaultCandidateLimit = 100
-	// DefaultResultLimit is the default number of results to return after reranking
-	DefaultResultLimit = 10
-)
-
-// Candidate represents a search result candidate for reranking.
-type Candidate struct {
-	Metadata   map[string]any
-	RerankInfo map[string]float64
-	ID         string
-	Content    string
-	Score      float64
-}
-
-// RerankResult represents a reranked search result.
-type RerankResult struct {
-	Metadata        map[string]any
-	ID              string
-	Content         string
-	OriginalScore   float64
-	RerankScore     float64
-	CombinedScore   float64
-	OriginalRank    int
-	RerankRank      int
-	RankImprovement int
-}
-
-// Service provides cross-encoder reranking functionality.
-type Service struct {
-	tk      *tokenizer.Tokenizer
-	session *ort.DynamicAdvancedSession
-	mu      sync.Mutex
-
-	// Weight for combining scores: combined = alpha*rerank + (1-alpha)*original
-	// Default 0.7 favors cross-encoder score
-	Alpha float64
-}
-
-// Config holds configuration for the reranking service.
-type Config struct {
-	// Alpha is the weight for combining scores (0.0-1.0)
-	// Higher values favor cross-encoder scores, lower values favor bi-encoder scores
-	Alpha float64
-}
-
-// DefaultConfig returns sensible defaults for reranking.
-func DefaultConfig() Config {
-	return Config{
-		Alpha: 0.7, // Favor cross-encoder by default
-	}
-}
-
-// NewService creates a new cross-encoder reranking service.
-// Note: ONNX runtime must be initialized before calling this (via embedding.NewService).
-func NewService(cfg Config) (*Service, error) {
-	// Load tokenizer from embedded data
-	tk, err := pretrained.FromReader(bytes.NewReader(crossEncoderTokenizerData))
-	if err != nil {
-		return nil, fmt.Errorf("load cross-encoder tokenizer: %w", err)
-	}
-
-	// Configure tokenizer for sequence classification (pairs)
-	tk.WithTruncation(&tokenizer.TruncationParams{
-		MaxLength: MaxSequenceLength,
-		Strategy:  tokenizer.LongestFirst,
-		Stride:    0,
-	})
-
-	// Cross-encoder outputs a single logit for relevance scoring
-	inputNames := []string{"input_ids", "attention_mask", "token_type_ids"}
-	outputNames := []string{"logits"}
-
-	session, err := ort.NewDynamicAdvancedSessionWithONNXData(
-		crossEncoderModelData,
-		inputNames,
-		outputNames,
-		nil,
-	)
-	if err != nil {
-		return nil, fmt.Errorf("create cross-encoder ONNX session: %w", err)
-	}
-
-	alpha := cfg.Alpha
-	if alpha <= 0 || alpha > 1 {
-		alpha = 0.7
-	}
-
-	return &Service{
-		tk:      tk,
-		session: session,
-		Alpha:   alpha,
-	}, nil
-}
-
-// Rerank reranks candidates using the cross-encoder model.
-// Takes a query and list of candidates, returns reranked results.
-func (s *Service) Rerank(query string, candidates []Candidate, limit int) ([]RerankResult, error) {
-	if len(candidates) == 0 {
-		return nil, nil
-	}
-
-	if limit <= 0 {
-		limit = DefaultResultLimit
-	}
-
-	s.mu.Lock()
-	defer s.mu.Unlock()
-
-	// Score all query-document pairs
-	scores, err := s.scoreAll(query, candidates)
-	if err != nil {
-		return nil, fmt.Errorf("score candidates: %w", err)
-	}
-
-	// Build results with combined scores
-	results := make([]RerankResult, len(candidates))
-	for i, c := range candidates {
-		// Normalize cross-encoder score to 0-1 range using sigmoid
-		normalizedRerank := sigmoid(scores[i])
-
-		results[i] = RerankResult{
-			ID:            c.ID,
-			Content:       c.Content,
-			OriginalScore: c.Score,
-			RerankScore:   normalizedRerank,
-			CombinedScore: s.Alpha*normalizedRerank + (1-s.Alpha)*c.Score,
-			Metadata:      c.Metadata,
-			OriginalRank:  i + 1,
-		}
-	}
-
-	// Sort by combined score (descending)
-	sort.Slice(results, func(i, j int) bool {
-		return results[i].CombinedScore > results[j].CombinedScore
-	})
-
-	// Assign rerank positions and calculate improvement
-	for i := range results {
-		results[i].RerankRank = i + 1
-		results[i].RankImprovement = results[i].OriginalRank - results[i].RerankRank
-	}
-
-	// Apply limit
-	if len(results) > limit {
-		results = results[:limit]
-	}
-
-	log.Debug().
-		Int("candidates", len(candidates)).
-		Int("returned", len(results)).
-		Float64("alpha", s.Alpha).
-		Msg("Cross-encoder reranking completed")
-
-	return results, nil
-}
-
-// RerankByScore reranks candidates and returns sorted by pure cross-encoder score.
-// Useful when you want to completely replace bi-encoder ranking.
-func (s *Service) RerankByScore(query string, candidates []Candidate, limit int) ([]RerankResult, error) {
-	if len(candidates) == 0 {
-		return nil, nil
-	}
-
-	if limit <= 0 {
-		limit = DefaultResultLimit
-	}
-
-	s.mu.Lock()
-	defer s.mu.Unlock()
-
-	scores, err := s.scoreAll(query, candidates)
-	if err != nil {
-		return nil, fmt.Errorf("score candidates: %w", err)
-	}
-
-	results := make([]RerankResult, len(candidates))
-	for i, c := range candidates {
-		normalizedRerank := sigmoid(scores[i])
-		results[i] = RerankResult{
-			ID:            c.ID,
-			Content:       c.Content,
-			OriginalScore: c.Score,
-			RerankScore:   normalizedRerank,
-			CombinedScore: normalizedRerank, // Use pure rerank score
-			Metadata:      c.Metadata,
-			OriginalRank:  i + 1,
-		}
-	}
-
-	// Sort by rerank score only
-	sort.Slice(results, func(i, j int) bool {
-		return results[i].RerankScore > results[j].RerankScore
-	})
-
-	for i := range results {
-		results[i].RerankRank = i + 1
-		results[i].RankImprovement = results[i].OriginalRank - results[i].RerankRank
-	}
-
-	if len(results) > limit {
-		results = results[:limit]
-	}
-
-	return results, nil
-}
-
-// scoreAll scores all query-document pairs using the cross-encoder.
-// Returns raw logits (before sigmoid normalization).
-func (s *Service) scoreAll(query string, candidates []Candidate) ([]float64, error) {
-	batchSize := len(candidates)
-
-	// Tokenize all query-document pairs
-	pairs := make([]tokenizer.EncodeInput, batchSize)
-	for i, c := range candidates {
-		// Cross-encoder takes query and document as a pair
-		pairs[i] = tokenizer.NewDualEncodeInput(
-			tokenizer.NewRawInputSequence(query),
-			tokenizer.NewRawInputSequence(c.Content),
-		)
-	}
-
-	encodings, err := s.tk.EncodeBatch(pairs, true)
-	if err != nil {
-		return nil, fmt.Errorf("tokenize pairs: %w", err)
-	}
-
-	// Find max sequence length
-	seqLength := 0
-	for _, enc := range encodings {
-		if len(enc.Ids) > seqLength {
-			seqLength = len(enc.Ids)
-		}
-	}
-	if seqLength > MaxSequenceLength {
-		seqLength = MaxSequenceLength
-	}
-
-	inputShape := ort.NewShape(int64(batchSize), int64(seqLength))
-
-	// Create input tensors
-	inputIdsData := make([]int64, batchSize*seqLength)
-	attentionMaskData := make([]int64, batchSize*seqLength)
-	tokenTypeIdsData := make([]int64, batchSize*seqLength)
-
-	for b := 0; b < batchSize; b++ {
-		copyLen := len(encodings[b].Ids)
-		if copyLen > seqLength {
-			copyLen = seqLength
-		}
-		for i := 0; i < copyLen; i++ {
-			inputIdsData[b*seqLength+i] = int64(encodings[b].Ids[i])
-		}
-
-		copyLen = len(encodings[b].AttentionMask)
-		if copyLen > seqLength {
-			copyLen = seqLength
-		}
-		for i := 0; i < copyLen; i++ {
-			attentionMaskData[b*seqLength+i] = int64(encodings[b].AttentionMask[i])
-		}
-
-		copyLen = len(encodings[b].TypeIds)
-		if copyLen > seqLength {
-			copyLen = seqLength
-		}
-		for i := 0; i < copyLen; i++ {
-			tokenTypeIdsData[b*seqLength+i] = int64(encodings[b].TypeIds[i])
-		}
-	}
-
-	inputIdsTensor, err := ort.NewTensor(inputShape, inputIdsData)
-	if err != nil {
-		return nil, fmt.Errorf("create input_ids tensor: %w", err)
-	}
-	defer func() { _ = inputIdsTensor.Destroy() }()
-
-	attentionMaskTensor, err := ort.NewTensor(inputShape, attentionMaskData)
-	if err != nil {
-		return nil, fmt.Errorf("create attention_mask tensor: %w", err)
-	}
-	defer func() { _ = attentionMaskTensor.Destroy() }()
-
-	tokenTypeIdsTensor, err := ort.NewTensor(inputShape, tokenTypeIdsData)
-	if err != nil {
-		return nil, fmt.Errorf("create token_type_ids tensor: %w", err)
-	}
-	defer func() { _ = tokenTypeIdsTensor.Destroy() }()
-
-	// Cross-encoder outputs [batch, 1] logits
-	outputShape := ort.NewShape(int64(batchSize), 1)
-	outputTensor, err := ort.NewEmptyTensor[float32](outputShape)
-	if err != nil {
-		return nil, fmt.Errorf("create output tensor: %w", err)
-	}
-	defer func() { _ = outputTensor.Destroy() }()
-
-	// Run inference
-	inputTensors := []ort.Value{inputIdsTensor, attentionMaskTensor, tokenTypeIdsTensor}
-	outputTensors := []ort.Value{outputTensor}
-
-	if err := s.session.Run(inputTensors, outputTensors); err != nil {
-		return nil, fmt.Errorf("run cross-encoder inference: %w", err)
-	}
-
-	// Extract scores
-	flatOutput := outputTensor.GetData()
-	scores := make([]float64, batchSize)
-	for i := 0; i < batchSize; i++ {
-		scores[i] = float64(flatOutput[i])
-	}
-
-	return scores, nil
-}
-
-// Score scores a single query-document pair.
-// Returns the raw cross-encoder logit and normalized score.
-func (s *Service) Score(query, document string) (rawScore, normalizedScore float64, err error) {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-
-	scores, err := s.scoreAll(query, []Candidate{{Content: document}})
-	if err != nil {
-		return 0, 0, err
-	}
-
-	rawScore = scores[0]
-	normalizedScore = sigmoid(rawScore)
-	return rawScore, normalizedScore, nil
-}
-
-// Close releases model resources.
-func (s *Service) Close() error {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-
-	if s.session != nil {
-		if err := s.session.Destroy(); err != nil {
-			return fmt.Errorf("destroy cross-encoder session: %w", err)
-		}
-		s.session = nil
-	}
-
-	return nil
-}
-
-// sigmoid applies the sigmoid function to normalize scores to 0-1 range.
-func sigmoid(x float64) float64 {
-	if x > 20 {
-		return 1.0
-	}
-	if x < -20 {
-		return 0.0
-	}
-	return 1.0 / (1.0 + math.Exp(-x))
-}

internal/reranking/service_test.go

@@ -1,448 +0,0 @@
-package reranking
-
-import (
-	"sync"
-	"testing"
-
-	"github.com/lukaszraczylo/claude-mnemonic/internal/embedding"
-)
-
-// initONNX initializes the ONNX runtime via the embedding service.
-// Must be called before creating reranking service.
-func initONNX(t *testing.T) func() {
-	t.Helper()
-	embSvc, err := embedding.NewService()
-	if err != nil {
-		t.Fatalf("Failed to initialize ONNX via embedding service: %v", err)
-	}
-	return func() {
-		embSvc.Close()
-	}
-}
-
-// TestSigmoid tests the sigmoid normalization function.
-func TestSigmoid(t *testing.T) {
-	tests := []struct {
-		name    string
-		input   float64
-		wantMin float64
-		wantMax float64
-	}{
-		{"positive large", 10, 0.9999, 1.0},
-		{"positive small", 1, 0.7, 0.8},
-		{"zero", 0, 0.4999, 0.5001},
-		{"negative small", -1, 0.2, 0.3},
-		{"negative large", -10, 0, 0.0001},
-		{"very positive", 25, 0.999999, 1.0},
-		{"very negative", -25, 0, 0.000001},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			got := sigmoid(tt.input)
-			if got < tt.wantMin || got > tt.wantMax {
-				t.Errorf("sigmoid(%v) = %v, want in range [%v, %v]",
-					tt.input, got, tt.wantMin, tt.wantMax)
-			}
-		})
-	}
-}
-
-// TestDefaultConfig tests the default configuration values.
-func TestDefaultConfig(t *testing.T) {
-	cfg := DefaultConfig()
-
-	if cfg.Alpha < 0 || cfg.Alpha > 1 {
-		t.Errorf("DefaultConfig().Alpha = %v, want in range [0, 1]", cfg.Alpha)
-	}
-	if cfg.Alpha != 0.7 {
-		t.Errorf("DefaultConfig().Alpha = %v, want 0.7", cfg.Alpha)
-	}
-}
-
-// TestNewService tests service creation.
-func TestNewService(t *testing.T) {
-	cleanup := initONNX(t)
-	defer cleanup()
-
-	cfg := DefaultConfig()
-	svc, err := NewService(cfg)
-	if err != nil {
-		t.Fatalf("NewService() error = %v", err)
-	}
-	defer svc.Close()
-
-	if svc == nil {
-		t.Fatal("NewService() returned nil")
-	}
-
-	if svc.Alpha != cfg.Alpha {
-		t.Errorf("Service.Alpha = %v, want %v", svc.Alpha, cfg.Alpha)
-	}
-}
-
-// TestScore tests single pair scoring.
-func TestScore(t *testing.T) {
-	cleanup := initONNX(t)
-	defer cleanup()
-
-	cfg := DefaultConfig()
-	svc, err := NewService(cfg)
-	if err != nil {
-		t.Fatalf("NewService() error = %v", err)
-	}
-	defer svc.Close()
-
-	query := "What is the capital of France?"
-	relevant := "Paris is the capital and largest city of France."
-	irrelevant := "Dogs are popular pets known for their loyalty."
-
-	// Score relevant document
-	_, relevantNorm, err := svc.Score(query, relevant)
-	if err != nil {
-		t.Fatalf("Score(relevant) error = %v", err)
-	}
-
-	// Score irrelevant document
-	_, irrelevantNorm, err := svc.Score(query, irrelevant)
-	if err != nil {
-		t.Fatalf("Score(irrelevant) error = %v", err)
-	}
-
-	// Relevant document should score higher
-	if relevantNorm <= irrelevantNorm {
-		t.Errorf("Expected relevant (%v) > irrelevant (%v)",
-			relevantNorm, irrelevantNorm)
-	}
-}
-
-// TestRerank tests the reranking functionality.
-func TestRerank(t *testing.T) {
-	cleanup := initONNX(t)
-	defer cleanup()
-
-	cfg := DefaultConfig()
-	svc, err := NewService(cfg)
-	if err != nil {
-		t.Fatalf("NewService() error = %v", err)
-	}
-	defer svc.Close()
-
-	query := "How to handle errors in Go?"
-	candidates := []Candidate{
-		{
-			ID:      "1",
-			Content: "Python exception handling with try/except blocks.",
-			Score:   0.8, // High bi-encoder score but irrelevant
-		},
-		{
-			ID:      "2",
-			Content: "Go error handling uses explicit return values. Functions return error as the last value.",
-			Score:   0.6, // Lower bi-encoder score but relevant
-		},
-		{
-			ID:      "3",
-			Content: "JavaScript uses Promise.catch for async error handling.",
-			Score:   0.7,
-		},
-	}
-
-	results, err := svc.Rerank(query, candidates, 3)
-	if err != nil {
-		t.Fatalf("Rerank() error = %v", err)
-	}
-
-	if len(results) != 3 {
-		t.Fatalf("Rerank() returned %d results, want 3", len(results))
-	}
-
-	// The Go error handling document should rank higher after reranking
-	var goRank int
-	for i, r := range results {
-		if r.ID == "2" {
-			goRank = i + 1
-			break
-		}
-	}
-
-	if goRank == 0 {
-		t.Error("Go document not found in results")
-	}
-
-	// Verify all results have required fields populated
-	for i, r := range results {
-		if r.ID == "" {
-			t.Errorf("Result %d has empty ID", i)
-		}
-		if r.Content == "" {
-			t.Errorf("Result %d has empty Content", i)
-		}
-		if r.RerankRank != i+1 {
-			t.Errorf("Result %d has RerankRank %d, want %d", i, r.RerankRank, i+1)
-		}
-	}
-}
-
-// TestRerankEmpty tests reranking with empty input.
-func TestRerankEmpty(t *testing.T) {
-	cleanup := initONNX(t)
-	defer cleanup()
-
-	cfg := DefaultConfig()
-	svc, err := NewService(cfg)
-	if err != nil {
-		t.Fatalf("NewService() error = %v", err)
-	}
-	defer svc.Close()
-
-	results, err := svc.Rerank("test query", nil, 10)
-	if err != nil {
-		t.Fatalf("Rerank(nil) error = %v", err)
-	}
-
-	if results != nil {
-		t.Errorf("Rerank(nil) = %v, want nil", results)
-	}
-
-	results, err = svc.Rerank("test query", []Candidate{}, 10)
-	if err != nil {
-		t.Fatalf("Rerank([]) error = %v", err)
-	}
-
-	if results != nil {
-		t.Errorf("Rerank([]) = %v, want nil", results)
-	}
-}
-
-// TestRerankLimit tests that limit is respected.
-func TestRerankLimit(t *testing.T) {
-	cleanup := initONNX(t)
-	defer cleanup()
-
-	cfg := DefaultConfig()
-	svc, err := NewService(cfg)
-	if err != nil {
-		t.Fatalf("NewService() error = %v", err)
-	}
-	defer svc.Close()
-
-	candidates := make([]Candidate, 20)
-	for i := range candidates {
-		candidates[i] = Candidate{
-			ID:      string(rune('A' + i)),
-			Content: "Test document content for ranking.",
-			Score:   0.5,
-		}
-	}
-
-	results, err := svc.Rerank("test query", candidates, 5)
-	if err != nil {
-		t.Fatalf("Rerank() error = %v", err)
-	}
-
-	if len(results) != 5 {
-		t.Errorf("Rerank() returned %d results, want 5", len(results))
-	}
-}
-
-// TestRerankByScore tests pure cross-encoder ranking.
-func TestRerankByScore(t *testing.T) {
-	cleanup := initONNX(t)
-	defer cleanup()
-
-	cfg := DefaultConfig()
-	svc, err := NewService(cfg)
-	if err != nil {
-		t.Fatalf("NewService() error = %v", err)
-	}
-	defer svc.Close()
-
-	query := "machine learning algorithms"
-	candidates := []Candidate{
-		{
-			ID:      "1",
-			Content: "Cooking recipes for Italian pasta dishes.",
-			Score:   0.9, // High original score
-		},
-		{
-			ID:      "2",
-			Content: "Neural networks are a type of machine learning algorithm.",
-			Score:   0.3, // Low original score
-		},
-	}
-
-	results, err := svc.RerankByScore(query, candidates, 2)
-	if err != nil {
-		t.Fatalf("RerankByScore() error = %v", err)
-	}
-
-	// Document 2 should rank first since it's about ML
-	if results[0].ID != "2" {
-		t.Errorf("Expected ML document to rank first, got %v", results[0].ID)
-	}
-
-	// CombinedScore should equal RerankScore when using RerankByScore
-	for _, r := range results {
-		if r.CombinedScore != r.RerankScore {
-			t.Errorf("RerankByScore: CombinedScore (%v) != RerankScore (%v)",
-				r.CombinedScore, r.RerankScore)
-		}
-	}
-}
-
-// TestRankImprovement tests that rank improvement is calculated correctly.
-func TestRankImprovement(t *testing.T) {
-	cleanup := initONNX(t)
-	defer cleanup()
-
-	cfg := DefaultConfig()
-	svc, err := NewService(cfg)
-	if err != nil {
-		t.Fatalf("NewService() error = %v", err)
-	}
-	defer svc.Close()
-
-	// Create candidates where we know the expected reranking
-	candidates := []Candidate{
-		{ID: "A", Content: "Unrelated content about weather forecasting.", Score: 0.9},
-		{ID: "B", Content: "How to fix memory leaks in Go programs.", Score: 0.8},
-		{ID: "C", Content: "More unrelated content about gardening tips.", Score: 0.7},
-	}
-
-	results, err := svc.Rerank("debugging memory issues in Go", candidates, 3)
-	if err != nil {
-		t.Fatalf("Rerank() error = %v", err)
-	}
-
-	for _, r := range results {
-		// RankImprovement = OriginalRank - RerankRank
-		// Positive means moved up, negative means moved down
-		expectedImprovement := r.OriginalRank - r.RerankRank
-		if r.RankImprovement != expectedImprovement {
-			t.Errorf("ID %s: RankImprovement = %d, want %d (orig=%d, new=%d)",
-				r.ID, r.RankImprovement, expectedImprovement,
-				r.OriginalRank, r.RerankRank)
-		}
-	}
-}
-
-// TestConcurrentRerank tests concurrent reranking calls.
-func TestConcurrentRerank(t *testing.T) {
-	cleanup := initONNX(t)
-	defer cleanup()
-
-	cfg := DefaultConfig()
-	svc, err := NewService(cfg)
-	if err != nil {
-		t.Fatalf("NewService() error = %v", err)
-	}
-	defer svc.Close()
-
-	candidates := []Candidate{
-		{ID: "1", Content: "Test document one.", Score: 0.5},
-		{ID: "2", Content: "Test document two.", Score: 0.5},
-	}
-
-	var wg sync.WaitGroup
-	errors := make(chan error, 10)
-
-	for i := 0; i < 10; i++ {
-		wg.Add(1)
-		go func(idx int) {
-			defer wg.Done()
-			_, err := svc.Rerank("concurrent test query", candidates, 2)
-			if err != nil {
-				errors <- err
-			}
-		}(i)
-	}
-
-	wg.Wait()
-	close(errors)
-
-	for err := range errors {
-		t.Errorf("Concurrent Rerank error: %v", err)
-	}
-}
-
-// TestClose tests service cleanup.
-func TestClose(t *testing.T) {
-	cleanup := initONNX(t)
-	defer cleanup()
-
-	cfg := DefaultConfig()
-	svc, err := NewService(cfg)
-	if err != nil {
-		t.Fatalf("NewService() error = %v", err)
-	}
-
-	err = svc.Close()
-	if err != nil {
-		t.Errorf("Close() error = %v", err)
-	}
-
-	// Double close should not panic
-	err = svc.Close()
-	if err != nil {
-		t.Errorf("Close() on closed service error = %v", err)
-	}
-}
-
-// TestMetadataPreserved tests that metadata is preserved through reranking.
-func TestMetadataPreserved(t *testing.T) {
-	cleanup := initONNX(t)
-	defer cleanup()
-
-	cfg := DefaultConfig()
-	svc, err := NewService(cfg)
-	if err != nil {
-		t.Fatalf("NewService() error = %v", err)
-	}
-	defer svc.Close()
-
-	candidates := []Candidate{
-		{
-			ID:       "1",
-			Content:  "Test content.",
-			Score:    0.5,
-			Metadata: map[string]any{"custom": "value1", "num": 42},
-		},
-		{
-			ID:       "2",
-			Content:  "Another test.",
-			Score:    0.5,
-			Metadata: map[string]any{"custom": "value2"},
-		},
-	}
-
-	results, err := svc.Rerank("query", candidates, 2)
-	if err != nil {
-		t.Fatalf("Rerank() error = %v", err)
-	}
-
-	for _, r := range results {
-		if r.Metadata == nil {
-			t.Errorf("Result %s has nil metadata", r.ID)
-			continue
-		}
-
-		// Find original candidate
-		var original *Candidate
-		for i := range candidates {
-			if candidates[i].ID == r.ID {
-				original = &candidates[i]
-				break
-			}
-		}
-
-		if original == nil {
-			t.Errorf("Could not find original for result %s", r.ID)
-			continue
-		}
-
-		// Check metadata preserved
-		if original.Metadata["custom"] != r.Metadata["custom"] {
-			t.Errorf("Metadata not preserved for %s", r.ID)
-		}
-	}
-}

internal/scoring/calculator.go

@@ -1,139 +0,0 @@
-// Package scoring provides importance score calculation for observations.
-package scoring
-
-import (
-	"math"
-	"time"
-
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-)
-
-// Calculator computes importance scores for observations.
-type Calculator struct {
-	config *models.ScoringConfig
-}
-
-// NewCalculator creates a new scoring calculator.
-// If config is nil, uses the default configuration.
-func NewCalculator(config *models.ScoringConfig) *Calculator {
-	if config == nil {
-		config = models.DefaultScoringConfig()
-	}
-	return &Calculator{config: config}
-}
-
-// Calculate computes the importance score for an observation at the given time.
-//
-// The scoring formula:
-//
-//	FinalScore = (BaseScore × TypeWeight × RecencyDecay) + FeedbackContrib + ConceptContrib + RetrievalContrib
-//
-// Where:
-//   - BaseScore = 1.0
-//   - TypeWeight = observation type multiplier (e.g., bugfix=1.3, change=0.9)
-//   - RecencyDecay = 0.5^(age_days / half_life_days) - halves every 7 days by default
-//   - FeedbackContrib = user_feedback × feedback_weight
-//   - ConceptContrib = sum(concept_weights) × concept_weight_factor
-//   - RetrievalContrib = log2(retrieval_count + 1) × 0.1 × retrieval_weight
-func (c *Calculator) Calculate(obs *models.Observation, now time.Time) float64 {
-	return c.CalculateComponents(obs, now).FinalScore
-}
-
-// CalculateComponents returns the individual components of the importance score.
-// Useful for debugging and explaining scores to users.
-// This is the core calculation method - Calculate() delegates to this.
-func (c *Calculator) CalculateComponents(obs *models.Observation, now time.Time) ScoreComponents {
-	// 1. Get base type weight
-	typeWeight := models.TypeBaseScore(obs.Type)
-
-	// 2. Calculate recency decay: 0.5^(age_days / half_life_days)
-	ageDays := now.Sub(time.UnixMilli(obs.CreatedAtEpoch)).Hours() / 24.0
-	if ageDays < 0 {
-		ageDays = 0 // Handle future timestamps gracefully
-	}
-	recencyDecay := math.Pow(0.5, ageDays/c.config.RecencyHalfLifeDays)
-
-	// Core score = 1.0 × type_weight × recency_decay
-	coreScore := 1.0 * typeWeight * recencyDecay
-
-	// 3. User feedback contribution: feedback × weight
-	feedbackContrib := float64(obs.UserFeedback) * c.config.FeedbackWeight
-
-	// 4. Concept boost contribution: sum of matching concept weights × factor
-	conceptBoost := 0.0
-	for _, concept := range obs.Concepts {
-		if weight, ok := c.config.ConceptWeights[concept]; ok {
-			conceptBoost += weight
-		}
-	}
-	conceptContrib := conceptBoost * c.config.ConceptWeight
-
-	// 5. Retrieval boost: log2(count + 1) × 0.1 × weight (diminishing returns)
-	retrievalContrib := 0.0
-	if obs.RetrievalCount > 0 {
-		// log2(count + 1) gives diminishing returns: 1→1, 3→2, 7→3, 15→4, etc.
-		retrievalBoost := math.Log2(float64(obs.RetrievalCount)+1) * 0.1
-		retrievalContrib = retrievalBoost * c.config.RetrievalWeight
-	}
-
-	// Final score with minimum threshold
-	finalScore := coreScore + feedbackContrib + conceptContrib + retrievalContrib
-	if finalScore < c.config.MinScore {
-		finalScore = c.config.MinScore
-	}
-
-	return ScoreComponents{
-		TypeWeight:       typeWeight,
-		RecencyDecay:     recencyDecay,
-		CoreScore:        coreScore,
-		FeedbackContrib:  feedbackContrib,
-		ConceptContrib:   conceptContrib,
-		RetrievalContrib: retrievalContrib,
-		FinalScore:       finalScore,
-		AgeDays:          ageDays,
-	}
-}
-
-// ScoreComponents contains the breakdown of an importance score calculation.
-type ScoreComponents struct {
-	TypeWeight       float64 `json:"type_weight"`
-	RecencyDecay     float64 `json:"recency_decay"`
-	CoreScore        float64 `json:"core_score"`
-	FeedbackContrib  float64 `json:"feedback_contrib"`
-	ConceptContrib   float64 `json:"concept_contrib"`
-	RetrievalContrib float64 `json:"retrieval_contrib"`
-	FinalScore       float64 `json:"final_score"`
-	AgeDays          float64 `json:"age_days"`
-}
-
-// BatchCalculate computes scores for multiple observations.
-// Returns a map of observation ID to calculated score.
-func (c *Calculator) BatchCalculate(observations []*models.Observation, now time.Time) map[int64]float64 {
-	scores := make(map[int64]float64, len(observations))
-	for _, obs := range observations {
-		scores[obs.ID] = c.Calculate(obs, now)
-	}
-	return scores
-}
-
-// RecalculateThreshold returns the minimum duration before an observation
-// should have its score recalculated. This prevents excessive recalculation
-// while ensuring scores stay reasonably fresh.
-func (c *Calculator) RecalculateThreshold() time.Duration {
-	// Recalculate at most every 6 hours
-	// This balances freshness with performance
-	return 6 * time.Hour
-}
-
-// UpdateConfig updates the calculator's scoring configuration.
-// This allows runtime tuning of scoring parameters.
-func (c *Calculator) UpdateConfig(config *models.ScoringConfig) {
-	if config != nil {
-		c.config = config
-	}
-}
-
-// GetConfig returns the current scoring configuration.
-func (c *Calculator) GetConfig() *models.ScoringConfig {
-	return c.config
-}

internal/scoring/calculator_test.go

@@ -1,638 +0,0 @@
-// Package scoring provides importance score calculation for observations.
-package scoring
-
-import (
-	"testing"
-	"time"
-
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"github.com/stretchr/testify/suite"
-)
-
-// CalculatorSuite is a test suite for the Calculator.
-type CalculatorSuite struct {
-	suite.Suite
-	calc   *Calculator
-	config *models.ScoringConfig
-	now    time.Time
-}
-
-func (s *CalculatorSuite) SetupTest() {
-	s.config = models.DefaultScoringConfig()
-	s.calc = NewCalculator(s.config)
-	s.now = time.Date(2025, 1, 15, 12, 0, 0, 0, time.UTC)
-}
-
-func TestCalculatorSuite(t *testing.T) {
-	suite.Run(t, new(CalculatorSuite))
-}
-
-// =============================================================================
-// GOOD SCENARIOS - Expected normal operations
-// =============================================================================
-
-func (s *CalculatorSuite) TestCalculate_GoodScenarios_NewObservation() {
-	// A brand new observation should have score close to type weight
-	obs := &models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeBugfix,
-		CreatedAtEpoch: s.now.UnixMilli(),
-	}
-
-	score := s.calc.Calculate(obs, s.now)
-
-	// Expected: 1.0 × 1.3 (bugfix weight) × 1.0 (no decay) = 1.3
-	s.InDelta(1.3, score, 0.01, "new bugfix should score ~1.3")
-}
-
-func (s *CalculatorSuite) TestCalculate_GoodScenarios_OneWeekOld() {
-	// One week old observation should have half the recency score
-	obs := &models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeDiscovery,
-		CreatedAtEpoch: s.now.Add(-7 * 24 * time.Hour).UnixMilli(),
-	}
-
-	score := s.calc.Calculate(obs, s.now)
-
-	// Expected: 1.0 × 1.1 (discovery) × 0.5 (7 days half-life) = 0.55
-	s.InDelta(0.55, score, 0.05, "7-day old discovery should score ~0.55")
-}
-
-func (s *CalculatorSuite) TestCalculate_GoodScenarios_TwoWeeksOld() {
-	// Two weeks old should have 1/4 recency score
-	obs := &models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeFeature,
-		CreatedAtEpoch: s.now.Add(-14 * 24 * time.Hour).UnixMilli(),
-	}
-
-	score := s.calc.Calculate(obs, s.now)
-
-	// Expected: 1.0 × 1.2 (feature) × 0.25 (14 days = 2 half-lives) = 0.30
-	s.InDelta(0.30, score, 0.05, "14-day old feature should score ~0.30")
-}
-
-func (s *CalculatorSuite) TestCalculate_GoodScenarios_PositiveFeedback() {
-	// Positive feedback should boost score
-	obs := &models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeChange,
-		CreatedAtEpoch: s.now.UnixMilli(),
-		UserFeedback:   1, // thumbs up
-	}
-
-	score := s.calc.Calculate(obs, s.now)
-
-	// Expected: (1.0 × 0.9) + 0.30 (feedback) = 1.20
-	s.InDelta(1.20, score, 0.01, "thumbs up should boost score by 0.30")
-}
-
-func (s *CalculatorSuite) TestCalculate_GoodScenarios_NegativeFeedback() {
-	// Negative feedback should reduce score
-	obs := &models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeChange,
-		CreatedAtEpoch: s.now.UnixMilli(),
-		UserFeedback:   -1, // thumbs down
-	}
-
-	score := s.calc.Calculate(obs, s.now)
-
-	// Expected: (1.0 × 0.9) - 0.30 (feedback) = 0.60
-	s.InDelta(0.60, score, 0.01, "thumbs down should reduce score by 0.30")
-}
-
-func (s *CalculatorSuite) TestCalculate_GoodScenarios_WithConcepts() {
-	// Observation with valuable concepts should get boost
-	obs := &models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeBugfix,
-		CreatedAtEpoch: s.now.UnixMilli(),
-		Concepts:       []string{"security", "gotcha"},
-	}
-
-	score := s.calc.Calculate(obs, s.now)
-
-	// Concept boost: (0.30 + 0.25) × 0.20 = 0.11
-	// Expected: 1.3 + 0.11 = 1.41
-	s.InDelta(1.41, score, 0.05, "security+gotcha concepts should boost score")
-}
-
-func (s *CalculatorSuite) TestCalculate_GoodScenarios_WithRetrievals() {
-	// Popular observations should get retrieval boost
-	obs := &models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeDiscovery,
-		CreatedAtEpoch: s.now.UnixMilli(),
-		RetrievalCount: 7, // log2(8) = 3
-	}
-
-	score := s.calc.Calculate(obs, s.now)
-
-	// Retrieval boost: log2(7+1) × 0.1 × 0.15 = 3 × 0.1 × 0.15 = 0.045
-	// Expected: 1.1 + 0.045 ≈ 1.145
-	s.InDelta(1.145, score, 0.05, "7 retrievals should add small boost")
-}
-
-func (s *CalculatorSuite) TestCalculate_GoodScenarios_CombinedFactors() {
-	// Test with all factors combined
-	obs := &models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeBugfix,
-		CreatedAtEpoch: s.now.Add(-7 * 24 * time.Hour).UnixMilli(), // 7 days old
-		UserFeedback:   1,
-		Concepts:       []string{"security"},
-		RetrievalCount: 3,
-	}
-
-	score := s.calc.Calculate(obs, s.now)
-
-	// Core: 1.0 × 1.3 × 0.5 = 0.65
-	// Feedback: 0.30
-	// Concept: 0.30 × 0.20 = 0.06
-	// Retrieval: log2(4) × 0.1 × 0.15 = 2 × 0.1 × 0.15 = 0.03
-	// Total ≈ 1.04
-	s.InDelta(1.04, score, 0.1, "combined factors should result in ~1.04")
-}
-
-// =============================================================================
-// WORSE SCENARIOS - Degraded but acceptable operations
-// =============================================================================
-
-func (s *CalculatorSuite) TestCalculate_WorseScenarios_VeryOldObservation() {
-	// Very old observation should have low but non-zero score
-	obs := &models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeChange,
-		CreatedAtEpoch: s.now.Add(-90 * 24 * time.Hour).UnixMilli(), // 90 days old
-	}
-
-	score := s.calc.Calculate(obs, s.now)
-
-	// 90 days = ~12.86 half-lives → decay ≈ 0.00014
-	// Core: 1.0 × 0.9 × 0.00014 = 0.000126
-	// But minimum score is 0.01
-	s.GreaterOrEqual(score, 0.01, "very old observation should still meet minimum")
-	s.Less(score, 0.1, "very old observation should be low scoring")
-}
-
-func (s *CalculatorSuite) TestCalculate_WorseScenarios_NegativeFeedbackOld() {
-	// Old observation with negative feedback should still have minimum score
-	obs := &models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeChange,
-		CreatedAtEpoch: s.now.Add(-60 * 24 * time.Hour).UnixMilli(),
-		UserFeedback:   -1,
-	}
-
-	score := s.calc.Calculate(obs, s.now)
-
-	s.GreaterOrEqual(score, s.config.MinScore, "should never go below minimum score")
-}
-
-func (s *CalculatorSuite) TestCalculate_WorseScenarios_UnknownConcepts() {
-	// Unknown concepts should not affect score negatively
-	obs := &models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeDiscovery,
-		CreatedAtEpoch: s.now.UnixMilli(),
-		Concepts:       []string{"unknown-concept", "another-unknown"},
-	}
-
-	score := s.calc.Calculate(obs, s.now)
-
-	// Should just be the base score without concept boost
-	s.InDelta(1.1, score, 0.01, "unknown concepts should not affect score")
-}
-
-func (s *CalculatorSuite) TestCalculate_WorseScenarios_MixedConcepts() {
-	// Mix of known and unknown concepts
-	obs := &models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeDiscovery,
-		CreatedAtEpoch: s.now.UnixMilli(),
-		Concepts:       []string{"security", "unknown-concept"},
-	}
-
-	score := s.calc.Calculate(obs, s.now)
-
-	// Only security should contribute
-	// Expected: 1.1 + (0.30 × 0.20) = 1.16
-	s.InDelta(1.16, score, 0.05, "only known concepts should boost score")
-}
-
-// =============================================================================
-// BAD SCENARIOS - Edge cases and error conditions
-// =============================================================================
-
-func (s *CalculatorSuite) TestCalculate_BadScenarios_FutureTimestamp() {
-	// Observation created in the future (clock skew)
-	obs := &models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeBugfix,
-		CreatedAtEpoch: s.now.Add(24 * time.Hour).UnixMilli(), // 1 day in future
-	}
-
-	score := s.calc.Calculate(obs, s.now)
-
-	// Should handle gracefully - age should be 0
-	s.InDelta(1.3, score, 0.01, "future timestamp should be treated as now")
-}
-
-func (s *CalculatorSuite) TestCalculate_BadScenarios_ZeroEpoch() {
-	// Missing creation timestamp
-	obs := &models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeDiscovery,
-		CreatedAtEpoch: 0, // Missing timestamp
-	}
-
-	score := s.calc.Calculate(obs, s.now)
-
-	// This will be treated as very old (1970)
-	s.GreaterOrEqual(score, s.config.MinScore, "should still meet minimum")
-}
-
-func (s *CalculatorSuite) TestCalculate_BadScenarios_EmptyObservation() {
-	// Minimal observation with defaults
-	obs := &models.Observation{
-		ID:             1,
-		Type:           "", // Empty type
-		CreatedAtEpoch: s.now.UnixMilli(),
-	}
-
-	score := s.calc.Calculate(obs, s.now)
-
-	// Unknown type should default to 1.0 weight
-	s.InDelta(1.0, score, 0.01, "empty type should use default weight 1.0")
-}
-
-func (s *CalculatorSuite) TestCalculate_BadScenarios_ExtremeRetrievalCount() {
-	// Very high retrieval count
-	obs := &models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeDiscovery,
-		CreatedAtEpoch: s.now.UnixMilli(),
-		RetrievalCount: 1000000, // Extreme value
-	}
-
-	score := s.calc.Calculate(obs, s.now)
-
-	// log2(1000001) ≈ 19.93, so boost = 19.93 × 0.1 × 0.15 ≈ 0.30
-	// Score should be reasonable, not exploding
-	s.Less(score, 2.0, "extreme retrieval count should not explode score")
-}
-
-func (s *CalculatorSuite) TestCalculate_BadScenarios_NegativeRetrievalCount() {
-	// Negative retrieval count (should not happen but test defensively)
-	obs := &models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeDiscovery,
-		CreatedAtEpoch: s.now.UnixMilli(),
-		RetrievalCount: -5,
-	}
-
-	score := s.calc.Calculate(obs, s.now)
-
-	// Should not panic and should give base score
-	s.InDelta(1.1, score, 0.01, "negative retrieval should be ignored")
-}
-
-// =============================================================================
-// EDGE CASES - Boundary conditions
-// =============================================================================
-
-func (s *CalculatorSuite) TestCalculate_EdgeCases_ExactlyOneHalfLife() {
-	obs := &models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeChange, // 0.9 weight
-		CreatedAtEpoch: s.now.Add(-7 * 24 * time.Hour).UnixMilli(),
-	}
-
-	score := s.calc.Calculate(obs, s.now)
-	s.InDelta(0.45, score, 0.01, "exactly 7 days should give 0.5 decay")
-}
-
-func (s *CalculatorSuite) TestCalculate_EdgeCases_ExactlyTwoHalfLives() {
-	obs := &models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeChange,
-		CreatedAtEpoch: s.now.Add(-14 * 24 * time.Hour).UnixMilli(),
-	}
-
-	score := s.calc.Calculate(obs, s.now)
-	s.InDelta(0.225, score, 0.01, "exactly 14 days should give 0.25 decay")
-}
-
-func (s *CalculatorSuite) TestCalculate_EdgeCases_AllTypeWeights() {
-	types := []struct {
-		t      models.ObservationType
-		weight float64
-	}{
-		{models.ObsTypeBugfix, 1.3},
-		{models.ObsTypeFeature, 1.2},
-		{models.ObsTypeDiscovery, 1.1},
-		{models.ObsTypeDecision, 1.1},
-		{models.ObsTypeRefactor, 1.0},
-		{models.ObsTypeChange, 0.9},
-	}
-
-	for _, tt := range types {
-		s.Run(string(tt.t), func() {
-			obs := &models.Observation{
-				ID:             1,
-				Type:           tt.t,
-				CreatedAtEpoch: s.now.UnixMilli(),
-			}
-			score := s.calc.Calculate(obs, s.now)
-			s.InDelta(tt.weight, score, 0.01)
-		})
-	}
-}
-
-func (s *CalculatorSuite) TestCalculate_EdgeCases_MinimumScoreEnforced() {
-	// Create worst case scenario
-	obs := &models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeChange,                                    // Lowest weight 0.9
-		CreatedAtEpoch: time.Date(2000, 1, 1, 0, 0, 0, 0, time.UTC).UnixMilli(), // Very old
-		UserFeedback:   -1,                                                      // Negative feedback
-	}
-
-	score := s.calc.Calculate(obs, s.now)
-
-	s.Equal(s.config.MinScore, score, "should be exactly minimum score")
-}
-
-func (s *CalculatorSuite) TestCalculate_EdgeCases_AllConceptsMaxWeight() {
-	// Observation with all high-value concepts
-	obs := &models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeBugfix,
-		CreatedAtEpoch: s.now.UnixMilli(),
-		Concepts:       []string{"security", "gotcha", "best-practice", "anti-pattern"},
-	}
-
-	score := s.calc.Calculate(obs, s.now)
-
-	// security=0.30, gotcha=0.25, best-practice=0.20, anti-pattern=0.20 = 0.95
-	// Concept contrib: 0.95 × 0.20 = 0.19
-	// Total: 1.3 + 0.19 = 1.49
-	s.InDelta(1.49, score, 0.05, "all high-value concepts should boost significantly")
-}
-
-// =============================================================================
-// CALCULATE COMPONENTS TESTS
-// =============================================================================
-
-func (s *CalculatorSuite) TestCalculateComponents_ReturnsAllComponents() {
-	obs := &models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeBugfix,
-		CreatedAtEpoch: s.now.Add(-7 * 24 * time.Hour).UnixMilli(),
-		UserFeedback:   1,
-		Concepts:       []string{"security"},
-		RetrievalCount: 7,
-	}
-
-	components := s.calc.CalculateComponents(obs, s.now)
-
-	s.InDelta(1.3, components.TypeWeight, 0.01)
-	s.InDelta(0.5, components.RecencyDecay, 0.01)
-	s.InDelta(0.65, components.CoreScore, 0.05)
-	s.InDelta(0.30, components.FeedbackContrib, 0.01)
-	s.InDelta(0.06, components.ConceptContrib, 0.02)
-	s.Greater(components.RetrievalContrib, 0.0)
-	s.InDelta(7.0, components.AgeDays, 0.1)
-	s.Greater(components.FinalScore, 0.0)
-}
-
-func (s *CalculatorSuite) TestCalculateComponents_MatchesCalculate() {
-	obs := &models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeFeature,
-		CreatedAtEpoch: s.now.Add(-3 * 24 * time.Hour).UnixMilli(),
-		UserFeedback:   -1,
-		Concepts:       []string{"performance", "architecture"},
-		RetrievalCount: 15,
-	}
-
-	score := s.calc.Calculate(obs, s.now)
-	components := s.calc.CalculateComponents(obs, s.now)
-
-	s.InDelta(score, components.FinalScore, 0.001, "Calculate and CalculateComponents should match")
-}
-
-// =============================================================================
-// BATCH CALCULATE TESTS
-// =============================================================================
-
-func (s *CalculatorSuite) TestBatchCalculate_Empty() {
-	scores := s.calc.BatchCalculate(nil, s.now)
-	s.Empty(scores)
-
-	scores = s.calc.BatchCalculate([]*models.Observation{}, s.now)
-	s.Empty(scores)
-}
-
-func (s *CalculatorSuite) TestBatchCalculate_Multiple() {
-	obs := []*models.Observation{
-		{ID: 1, Type: models.ObsTypeBugfix, CreatedAtEpoch: s.now.UnixMilli()},
-		{ID: 2, Type: models.ObsTypeFeature, CreatedAtEpoch: s.now.Add(-7 * 24 * time.Hour).UnixMilli()},
-		{ID: 3, Type: models.ObsTypeChange, CreatedAtEpoch: s.now.Add(-14 * 24 * time.Hour).UnixMilli()},
-	}
-
-	scores := s.calc.BatchCalculate(obs, s.now)
-
-	s.Len(scores, 3)
-	s.Contains(scores, int64(1))
-	s.Contains(scores, int64(2))
-	s.Contains(scores, int64(3))
-
-	s.InDelta(1.3, scores[1], 0.01)   // New bugfix
-	s.InDelta(0.6, scores[2], 0.1)    // 7-day feature
-	s.InDelta(0.225, scores[3], 0.05) // 14-day change
-}
-
-// =============================================================================
-// CONFIGURATION TESTS
-// =============================================================================
-
-func (s *CalculatorSuite) TestNewCalculator_NilConfig() {
-	calc := NewCalculator(nil)
-	s.NotNil(calc)
-	s.NotNil(calc.config)
-	s.Equal(7.0, calc.config.RecencyHalfLifeDays)
-}
-
-func (s *CalculatorSuite) TestUpdateConfig() {
-	newConfig := &models.ScoringConfig{
-		RecencyHalfLifeDays: 14.0, // Changed from 7
-		FeedbackWeight:      0.50,
-		ConceptWeight:       0.10,
-		RetrievalWeight:     0.05,
-		MinScore:            0.001,
-		ConceptWeights:      map[string]float64{"test": 0.5},
-	}
-
-	s.calc.UpdateConfig(newConfig)
-
-	obs := &models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeChange,
-		CreatedAtEpoch: s.now.Add(-14 * 24 * time.Hour).UnixMilli(),
-	}
-
-	score := s.calc.Calculate(obs, s.now)
-
-	// With 14-day half-life, 14 days = exactly one half-life
-	// Expected: 1.0 × 0.9 × 0.5 = 0.45
-	s.InDelta(0.45, score, 0.01)
-}
-
-func (s *CalculatorSuite) TestUpdateConfig_NilIgnored() {
-	originalConfig := s.calc.GetConfig()
-	s.calc.UpdateConfig(nil)
-	s.Equal(originalConfig, s.calc.GetConfig())
-}
-
-func (s *CalculatorSuite) TestGetConfig() {
-	config := s.calc.GetConfig()
-	s.NotNil(config)
-	s.Equal(7.0, config.RecencyHalfLifeDays)
-}
-
-func (s *CalculatorSuite) TestRecalculateThreshold() {
-	threshold := s.calc.RecalculateThreshold()
-	s.Equal(6*time.Hour, threshold)
-}
-
-// =============================================================================
-// STANDALONE TESTS (non-suite)
-// =============================================================================
-
-func TestNewCalculator_DefaultConfig(t *testing.T) {
-	calc := NewCalculator(nil)
-	require.NotNil(t, calc)
-	assert.Equal(t, 7.0, calc.config.RecencyHalfLifeDays)
-	assert.Equal(t, 0.30, calc.config.FeedbackWeight)
-	assert.Equal(t, 0.01, calc.config.MinScore)
-}
-
-func TestCalculator_ConcurrentAccess(t *testing.T) {
-	calc := NewCalculator(nil)
-	now := time.Now()
-
-	// Test that calculator is safe for concurrent reads
-	done := make(chan bool, 10)
-	for i := 0; i < 10; i++ {
-		go func(id int64) {
-			obs := &models.Observation{
-				ID:             id,
-				Type:           models.ObsTypeBugfix,
-				CreatedAtEpoch: now.UnixMilli(),
-			}
-			score := calc.Calculate(obs, now)
-			assert.Greater(t, score, 0.0)
-			done <- true
-		}(int64(i))
-	}
-
-	for i := 0; i < 10; i++ {
-		<-done
-	}
-}
-
-func TestCalculator_DecayPrecision(t *testing.T) {
-	calc := NewCalculator(nil)
-	now := time.Now()
-
-	// Test that decay is mathematically correct
-	testCases := []struct {
-		days          int
-		expectedDecay float64
-	}{
-		{0, 1.0},
-		{7, 0.5},
-		{14, 0.25},
-		{21, 0.125},
-		{28, 0.0625},
-	}
-
-	for _, tc := range testCases {
-		t.Run(string(rune('0'+tc.days/7))+"_half_lives", func(t *testing.T) {
-			obs := &models.Observation{
-				ID:             1,
-				Type:           models.ObsTypeRefactor, // 1.0 weight
-				CreatedAtEpoch: now.Add(-time.Duration(tc.days) * 24 * time.Hour).UnixMilli(),
-			}
-			components := calc.CalculateComponents(obs, now)
-			assert.InDelta(t, tc.expectedDecay, components.RecencyDecay, 0.001)
-		})
-	}
-}
-
-func TestTypeBaseScore_UnknownType(t *testing.T) {
-	score := models.TypeBaseScore("unknown-type")
-	assert.Equal(t, 1.0, score, "unknown type should default to 1.0")
-}
-
-func TestTypeBaseScore_AllKnownTypes(t *testing.T) {
-	expected := map[models.ObservationType]float64{
-		models.ObsTypeBugfix:    1.3,
-		models.ObsTypeFeature:   1.2,
-		models.ObsTypeDiscovery: 1.1,
-		models.ObsTypeDecision:  1.1,
-		models.ObsTypeRefactor:  1.0,
-		models.ObsTypeChange:    0.9,
-	}
-
-	for obsType, expectedScore := range expected {
-		t.Run(string(obsType), func(t *testing.T) {
-			score := models.TypeBaseScore(obsType)
-			assert.Equal(t, expectedScore, score)
-		})
-	}
-}
-
-func TestCalculator_RetrievalBoostDiminishingReturns(t *testing.T) {
-	calc := NewCalculator(nil)
-	now := time.Now()
-
-	// Test that retrieval boost has diminishing returns
-	// When retrieval count doubles, the boost should NOT double (log2 gives diminishing returns)
-
-	// Collect boosts for different counts
-	boosts := make([]float64, 0)
-	retrievalCounts := []int{1, 3, 7, 15, 31, 63, 127}
-
-	for _, count := range retrievalCounts {
-		obs := &models.Observation{
-			ID:             1,
-			Type:           models.ObsTypeRefactor,
-			CreatedAtEpoch: now.UnixMilli(),
-			RetrievalCount: count,
-		}
-		components := calc.CalculateComponents(obs, now)
-		boosts = append(boosts, components.RetrievalContrib)
-	}
-
-	// Verify boost increases but at a decreasing rate
-	for i := 1; i < len(boosts); i++ {
-		// Each boost should be higher than the previous
-		assert.Greater(t, boosts[i], boosts[i-1],
-			"boost should increase with more retrievals")
-
-		// But not proportionally - calculate the ratios
-		if i >= 2 {
-			ratio1 := boosts[i-1] / boosts[i-2]
-			ratio2 := boosts[i] / boosts[i-1]
-			// The growth ratio should be decreasing (diminishing returns)
-			assert.Less(t, ratio2, ratio1+0.01, // Allow small floating point tolerance
-				"growth rate should decrease (diminishing returns)")
-		}
-	}
-}

internal/scoring/recalculator.go

@@ -1,186 +0,0 @@
-// Package scoring provides importance score calculation for observations.
-package scoring
-
-import (
-	"context"
-	"sync"
-	"time"
-
-	"github.com/rs/zerolog"
-
-	"github.com/lukaszraczylo/claude-mnemonic/internal/db/gorm"
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-)
-
-// ObservationStore defines the interface for observation storage operations needed by the recalculator.
-type ObservationStore interface {
-	GetObservationsNeedingScoreUpdate(ctx context.Context, threshold time.Duration, limit int) ([]*models.Observation, error)
-	UpdateImportanceScores(ctx context.Context, scores map[int64]float64) error
-	GetConceptWeights(ctx context.Context) (map[string]float64, error)
-}
-
-// Recalculator periodically recalculates importance scores for observations.
-type Recalculator struct {
-	log        zerolog.Logger
-	store      ObservationStore
-	calculator *Calculator
-	stopCh     chan struct{}
-	doneCh     chan struct{}
-	interval   time.Duration
-	batchSize  int
-	mu         sync.Mutex
-	running    bool
-}
-
-// NewRecalculator creates a new background recalculator.
-func NewRecalculator(store ObservationStore, calc *Calculator, log zerolog.Logger) *Recalculator {
-	return &Recalculator{
-		store:      store,
-		calculator: calc,
-		log:        log.With().Str("component", "recalculator").Logger(),
-		interval:   1 * time.Hour, // Run every hour
-		batchSize:  500,           // Process 500 observations at a time
-		stopCh:     make(chan struct{}),
-		doneCh:     make(chan struct{}),
-	}
-}
-
-// Start begins the background recalculation loop.
-// This should be called in a goroutine.
-func (r *Recalculator) Start(ctx context.Context) {
-	r.mu.Lock()
-	if r.running {
-		r.mu.Unlock()
-		return
-	}
-	r.running = true
-	r.mu.Unlock()
-
-	defer func() {
-		r.mu.Lock()
-		r.running = false
-		r.mu.Unlock()
-		close(r.doneCh)
-	}()
-
-	// Initial run
-	r.recalculate(ctx)
-
-	r.mu.Lock()
-	interval := r.interval
-	r.mu.Unlock()
-
-	ticker := time.NewTicker(interval)
-	defer ticker.Stop()
-
-	for {
-		select {
-		case <-ctx.Done():
-			r.log.Info().Msg("recalculator shutting down due to context cancellation")
-			return
-		case <-r.stopCh:
-			r.log.Info().Msg("recalculator stopping")
-			return
-		case <-ticker.C:
-			r.recalculate(ctx)
-		}
-	}
-}
-
-// Stop stops the background recalculation loop.
-func (r *Recalculator) Stop() {
-	r.mu.Lock()
-	if !r.running {
-		r.mu.Unlock()
-		return
-	}
-	r.mu.Unlock()
-
-	close(r.stopCh)
-	<-r.doneCh
-}
-
-// recalculate performs a single recalculation batch.
-func (r *Recalculator) recalculate(ctx context.Context) {
-	now := time.Now()
-	threshold := r.calculator.RecalculateThreshold()
-
-	r.mu.Lock()
-	batchSize := r.batchSize
-	r.mu.Unlock()
-
-	observations, err := r.store.GetObservationsNeedingScoreUpdate(ctx, threshold, batchSize)
-	if err != nil {
-		r.log.Error().Err(err).Msg("failed to get observations for score update")
-		return
-	}
-
-	if len(observations) == 0 {
-		return
-	}
-
-	scores := r.calculator.BatchCalculate(observations, now)
-
-	if err := r.store.UpdateImportanceScores(ctx, scores); err != nil {
-		r.log.Error().Err(err).Msg("failed to update importance scores")
-		return
-	}
-
-	r.log.Info().
-		Int("count", len(scores)).
-		Dur("elapsed", time.Since(now)).
-		Msg("recalculated importance scores")
-}
-
-// RecalculateNow triggers an immediate recalculation.
-// This is useful for testing or when scores need to be updated urgently.
-func (r *Recalculator) RecalculateNow(ctx context.Context) error {
-	r.recalculate(ctx)
-	return nil
-}
-
-// RefreshConceptWeights reloads concept weights from the database.
-// Call this after updating concept weights to apply changes.
-func (r *Recalculator) RefreshConceptWeights(ctx context.Context) error {
-	weights, err := r.store.GetConceptWeights(ctx)
-	if err != nil {
-		return err
-	}
-
-	config := r.calculator.GetConfig()
-	config.ConceptWeights = weights
-	r.calculator.UpdateConfig(config)
-
-	r.log.Info().Int("count", len(weights)).Msg("refreshed concept weights")
-	return nil
-}
-
-// Stats returns statistics about the recalculator.
-type Stats struct {
-	Running     bool          `json:"running"`
-	Interval    time.Duration `json:"interval"`
-	BatchSize   int           `json:"batch_size"`
-	HalfLife    float64       `json:"half_life_days"`
-	MinScore    float64       `json:"min_score"`
-	ConceptsLen int           `json:"concepts_count"`
-}
-
-// GetStats returns current recalculator statistics.
-func (r *Recalculator) GetStats() Stats {
-	r.mu.Lock()
-	defer r.mu.Unlock()
-
-	config := r.calculator.GetConfig()
-
-	return Stats{
-		Running:     r.running,
-		Interval:    r.interval,
-		BatchSize:   r.batchSize,
-		HalfLife:    config.RecencyHalfLifeDays,
-		MinScore:    config.MinScore,
-		ConceptsLen: len(config.ConceptWeights),
-	}
-}
-
-// Ensure ObservationStore satisfies the interface
-var _ ObservationStore = (*gorm.ObservationStore)(nil)

internal/scoring/recalculator_test.go

@@ -1,447 +0,0 @@
-// Package scoring provides importance score calculation for observations.
-package scoring
-
-import (
-	"context"
-	"sync"
-	"testing"
-	"time"
-
-	"github.com/rs/zerolog"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-
-	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
-)
-
-// MockObservationStore is a mock implementation of ObservationStore for testing.
-type MockObservationStore struct {
-	updateErr         error
-	getErr            error
-	getConceptsErr    error
-	scores            map[int64]float64
-	conceptWeights    map[string]float64
-	observations      []*models.Observation
-	updateScoresCalls int
-	mu                sync.Mutex
-}
-
-func NewMockObservationStore() *MockObservationStore {
-	return &MockObservationStore{
-		observations:   []*models.Observation{},
-		scores:         make(map[int64]float64),
-		conceptWeights: make(map[string]float64),
-	}
-}
-
-func (m *MockObservationStore) GetObservationsNeedingScoreUpdate(ctx context.Context, threshold time.Duration, limit int) ([]*models.Observation, error) {
-	m.mu.Lock()
-	defer m.mu.Unlock()
-
-	if m.getErr != nil {
-		return nil, m.getErr
-	}
-
-	// Return observations that haven't been updated within threshold
-	now := time.Now()
-	var result []*models.Observation
-	for _, obs := range m.observations {
-		if !obs.ScoreUpdatedAt.Valid || now.Sub(time.Unix(obs.ScoreUpdatedAt.Int64, 0)) > threshold {
-			result = append(result, obs)
-			if len(result) >= limit {
-				break
-			}
-		}
-	}
-	return result, nil
-}
-
-func (m *MockObservationStore) UpdateImportanceScores(ctx context.Context, scores map[int64]float64) error {
-	m.mu.Lock()
-	defer m.mu.Unlock()
-
-	m.updateScoresCalls++
-	if m.updateErr != nil {
-		return m.updateErr
-	}
-
-	for id, score := range scores {
-		m.scores[id] = score
-	}
-	return nil
-}
-
-func (m *MockObservationStore) GetConceptWeights(ctx context.Context) (map[string]float64, error) {
-	m.mu.Lock()
-	defer m.mu.Unlock()
-
-	if m.getConceptsErr != nil {
-		return nil, m.getConceptsErr
-	}
-	return m.conceptWeights, nil
-}
-
-func (m *MockObservationStore) AddObservation(obs *models.Observation) {
-	m.mu.Lock()
-	defer m.mu.Unlock()
-	m.observations = append(m.observations, obs)
-}
-
-func (m *MockObservationStore) SetConceptWeights(weights map[string]float64) {
-	m.mu.Lock()
-	defer m.mu.Unlock()
-	m.conceptWeights = weights
-}
-
-func (m *MockObservationStore) GetScore(id int64) (float64, bool) {
-	m.mu.Lock()
-	defer m.mu.Unlock()
-	score, ok := m.scores[id]
-	return score, ok
-}
-
-func (m *MockObservationStore) GetUpdateScoresCalls() int {
-	m.mu.Lock()
-	defer m.mu.Unlock()
-	return m.updateScoresCalls
-}
-
-func (m *MockObservationStore) SetUpdateError(err error) {
-	m.mu.Lock()
-	defer m.mu.Unlock()
-	m.updateErr = err
-}
-
-func (m *MockObservationStore) SetGetError(err error) {
-	m.mu.Lock()
-	defer m.mu.Unlock()
-	m.getErr = err
-}
-
-// =============================================================================
-// RECALCULATOR TESTS
-// =============================================================================
-
-func TestNewRecalculator(t *testing.T) {
-	store := NewMockObservationStore()
-	calc := NewCalculator(nil)
-	log := zerolog.Nop()
-
-	recalc := NewRecalculator(store, calc, log)
-
-	require.NotNil(t, recalc)
-	assert.NotNil(t, recalc.store)
-	assert.NotNil(t, recalc.calculator)
-	assert.Equal(t, 1*time.Hour, recalc.interval)
-	assert.Equal(t, 500, recalc.batchSize)
-	assert.False(t, recalc.running)
-}
-
-func TestRecalculator_RecalculateNow(t *testing.T) {
-	store := NewMockObservationStore()
-	calc := NewCalculator(nil)
-	log := zerolog.Nop()
-	recalc := NewRecalculator(store, calc, log)
-
-	// Add observations
-	now := time.Now()
-	store.AddObservation(&models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeBugfix,
-		CreatedAtEpoch: now.UnixMilli(),
-	})
-	store.AddObservation(&models.Observation{
-		ID:             2,
-		Type:           models.ObsTypeFeature,
-		CreatedAtEpoch: now.Add(-7 * 24 * time.Hour).UnixMilli(),
-	})
-
-	ctx := context.Background()
-	err := recalc.RecalculateNow(ctx)
-
-	require.NoError(t, err)
-
-	// Verify scores were calculated
-	score1, ok := store.GetScore(1)
-	assert.True(t, ok)
-	assert.Greater(t, score1, 0.0)
-
-	score2, ok := store.GetScore(2)
-	assert.True(t, ok)
-	assert.Greater(t, score2, 0.0)
-	assert.Less(t, score2, score1, "older observation should have lower score")
-}
-
-func TestRecalculator_RefreshConceptWeights(t *testing.T) {
-	store := NewMockObservationStore()
-	calc := NewCalculator(nil)
-	log := zerolog.Nop()
-	recalc := NewRecalculator(store, calc, log)
-
-	// Set up custom weights in store
-	customWeights := map[string]float64{
-		"security":    0.50,
-		"performance": 0.25,
-	}
-	store.SetConceptWeights(customWeights)
-
-	ctx := context.Background()
-	err := recalc.RefreshConceptWeights(ctx)
-
-	require.NoError(t, err)
-
-	// Verify weights were updated in calculator config
-	config := calc.GetConfig()
-	assert.Equal(t, 0.50, config.ConceptWeights["security"])
-	assert.Equal(t, 0.25, config.ConceptWeights["performance"])
-}
-
-func TestRecalculator_RefreshConceptWeights_Error(t *testing.T) {
-	store := NewMockObservationStore()
-	calc := NewCalculator(nil)
-	log := zerolog.Nop()
-	recalc := NewRecalculator(store, calc, log)
-
-	store.getConceptsErr = assert.AnError
-
-	ctx := context.Background()
-	err := recalc.RefreshConceptWeights(ctx)
-
-	require.Error(t, err)
-}
-
-func TestRecalculator_GetStats(t *testing.T) {
-	store := NewMockObservationStore()
-	calc := NewCalculator(nil)
-	log := zerolog.Nop()
-	recalc := NewRecalculator(store, calc, log)
-
-	// Set fields directly for testing
-	recalc.interval = 2 * time.Hour
-	recalc.batchSize = 250
-
-	stats := recalc.GetStats()
-
-	assert.False(t, stats.Running)
-	assert.Equal(t, 2*time.Hour, stats.Interval)
-	assert.Equal(t, 250, stats.BatchSize)
-	assert.Equal(t, 7.0, stats.HalfLife)
-	assert.Equal(t, 0.01, stats.MinScore)
-}
-
-func TestRecalculator_StartStop(t *testing.T) {
-	store := NewMockObservationStore()
-	calc := NewCalculator(nil)
-	log := zerolog.Nop()
-	recalc := NewRecalculator(store, calc, log)
-
-	// Use a short interval for testing
-	recalc.interval = 50 * time.Millisecond
-
-	// Add an observation
-	store.AddObservation(&models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeBugfix,
-		CreatedAtEpoch: time.Now().UnixMilli(),
-	})
-
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
-
-	// Start in goroutine
-	go recalc.Start(ctx)
-
-	// Wait for initial run and at least one tick
-	time.Sleep(100 * time.Millisecond)
-
-	// Verify it ran
-	calls := store.GetUpdateScoresCalls()
-	assert.GreaterOrEqual(t, calls, 1, "should have run at least once")
-
-	// Stop via context cancellation
-	cancel()
-	time.Sleep(100 * time.Millisecond)
-
-	// Verify stopped
-	stats := recalc.GetStats()
-	assert.False(t, stats.Running)
-}
-
-func TestRecalculator_StartTwice(t *testing.T) {
-	store := NewMockObservationStore()
-	calc := NewCalculator(nil)
-	log := zerolog.Nop()
-	recalc := NewRecalculator(store, calc, log)
-
-	recalc.interval = 1 * time.Hour // Long interval so it doesn't tick during test
-
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
-
-	// Start first time
-	go recalc.Start(ctx)
-	time.Sleep(50 * time.Millisecond)
-
-	// Try to start second time (should return immediately)
-	go recalc.Start(ctx)
-	time.Sleep(50 * time.Millisecond)
-
-	// Should still be running (only once)
-	stats := recalc.GetStats()
-	assert.True(t, stats.Running)
-
-	cancel()
-}
-
-func TestRecalculator_StopWhenNotRunning(t *testing.T) {
-	store := NewMockObservationStore()
-	calc := NewCalculator(nil)
-	log := zerolog.Nop()
-	recalc := NewRecalculator(store, calc, log)
-
-	// Stop without starting - should not panic
-	recalc.Stop()
-
-	stats := recalc.GetStats()
-	assert.False(t, stats.Running)
-}
-
-func TestRecalculator_EmptyStore(t *testing.T) {
-	store := NewMockObservationStore()
-	calc := NewCalculator(nil)
-	log := zerolog.Nop()
-	recalc := NewRecalculator(store, calc, log)
-
-	ctx := context.Background()
-	err := recalc.RecalculateNow(ctx)
-
-	require.NoError(t, err)
-	assert.Equal(t, 0, store.GetUpdateScoresCalls(), "should not call update with no observations")
-}
-
-func TestRecalculator_GetObservationsError(t *testing.T) {
-	store := NewMockObservationStore()
-	calc := NewCalculator(nil)
-	log := zerolog.Nop()
-	recalc := NewRecalculator(store, calc, log)
-
-	store.SetGetError(assert.AnError)
-
-	ctx := context.Background()
-	err := recalc.RecalculateNow(ctx)
-
-	// Should not return error (logs it instead)
-	require.NoError(t, err)
-	assert.Equal(t, 0, store.GetUpdateScoresCalls())
-}
-
-func TestRecalculator_UpdateScoresError(t *testing.T) {
-	store := NewMockObservationStore()
-	calc := NewCalculator(nil)
-	log := zerolog.Nop()
-	recalc := NewRecalculator(store, calc, log)
-
-	store.AddObservation(&models.Observation{
-		ID:             1,
-		Type:           models.ObsTypeBugfix,
-		CreatedAtEpoch: time.Now().UnixMilli(),
-	})
-
-	store.SetUpdateError(assert.AnError)
-
-	ctx := context.Background()
-	err := recalc.RecalculateNow(ctx)
-
-	// Should not return error (logs it instead)
-	require.NoError(t, err)
-	assert.Equal(t, 1, store.GetUpdateScoresCalls())
-}
-
-func TestRecalculator_BatchProcessing(t *testing.T) {
-	store := NewMockObservationStore()
-	calc := NewCalculator(nil)
-	log := zerolog.Nop()
-	recalc := NewRecalculator(store, calc, log)
-
-	// Set small batch size
-	recalc.batchSize = 3
-
-	// Add 5 observations
-	now := time.Now()
-	for i := 1; i <= 5; i++ {
-		store.AddObservation(&models.Observation{
-			ID:             int64(i),
-			Type:           models.ObsTypeBugfix,
-			CreatedAtEpoch: now.UnixMilli(),
-		})
-	}
-
-	ctx := context.Background()
-	err := recalc.RecalculateNow(ctx)
-
-	require.NoError(t, err)
-
-	// Should only process batch size (3)
-	scores := 0
-	for i := 1; i <= 5; i++ {
-		if _, ok := store.GetScore(int64(i)); ok {
-			scores++
-		}
-	}
-	assert.Equal(t, 3, scores, "should only process batch size observations")
-}
-
-func TestRecalculator_ConcurrentAccess(t *testing.T) {
-	store := NewMockObservationStore()
-	calc := NewCalculator(nil)
-	log := zerolog.Nop()
-	recalc := NewRecalculator(store, calc, log)
-
-	// Add observations
-	now := time.Now()
-	for i := 1; i <= 10; i++ {
-		store.AddObservation(&models.Observation{
-			ID:             int64(i),
-			Type:           models.ObsTypeBugfix,
-			CreatedAtEpoch: now.UnixMilli(),
-		})
-	}
-
-	ctx := context.Background()
-	var wg sync.WaitGroup
-
-	// Run multiple recalculations concurrently
-	for i := 0; i < 5; i++ {
-		wg.Add(1)
-		go func() {
-			defer wg.Done()
-			_ = recalc.RecalculateNow(ctx)
-		}()
-	}
-
-	wg.Wait()
-
-	// Should complete without race conditions
-	// (use -race flag to verify)
-	assert.GreaterOrEqual(t, store.GetUpdateScoresCalls(), 1)
-}
-
-func TestRecalculator_StatsThreadSafe(t *testing.T) {
-	store := NewMockObservationStore()
-	calc := NewCalculator(nil)
-	log := zerolog.Nop()
-	recalc := NewRecalculator(store, calc, log)
-
-	var wg sync.WaitGroup
-
-	// Concurrent reads (use -race flag to verify)
-	for i := 0; i < 10; i++ {
-		wg.Add(1)
-		go func() {
-			defer wg.Done()
-			_ = recalc.GetStats()
-		}()
-	}
-
-	wg.Wait()
-}