general improvements (#17)

* refactor(hooks): simplify hook execution with shared context

- [x] Extract BaseInput struct to eliminate duplicate fields across hooks
- [x] Create RunHook handler pattern for session-start and user-prompt
- [x] Create RunStatuslineHook for fast statusline rendering without worker startup
- [x] Add HookContext struct to pass port, project, CWD, SessionID to handlers
- [x] Add db/interface.go with ObservationReader/Writer interfaces
- [x] Add comprehensive conflict management tests in sqlite/conflict_test.go
- [x] Add vector client tests for Count, ModelVersion, NeedsRebuild, GetStaleVectors
- [x] Add FilterByThreshold helper tests for query result filtering
- [x] Make handlers_test more robust for network-dependent update checks
- [x] Update package versions in UI

* Move to GORM + general cleanup

* feat(mcp): add observation relations discovery and scoring integration

- [x] Add find_related_observations MCP tool for discovering related observations by confidence
- [x] Integrate scoring calculator and recalculator into MCP server initialization
- [x] Add pattern, relation, and session stores to MCP server dependencies
- [x] Register MCP server in Claude Code settings during plugin installation
- [x] Update install scripts (bash, PowerShell) to configure MCP server settings
- [x] Switch plugin manifest files to template-based versioning (plugin.json.tpl, marketplace.json.tpl)
- [x] Update all MCP server tests to pass new dependency parameters

internal/pattern/detector.go

@@ -6,7 +6,7 @@ import (
 	"sync"
 	"time"
 
-	"github.com/lukaszraczylo/claude-mnemonic/internal/db/sqlite"
+	"github.com/lukaszraczylo/claude-mnemonic/internal/db/gorm"
 	"github.com/lukaszraczylo/claude-mnemonic/pkg/models"
 	"github.com/rs/zerolog/log"
 )
@@ -39,8 +39,8 @@ type PatternSyncFunc func(pattern *models.Pattern)
 // Detector detects and tracks recurring patterns across observations.
 type Detector struct {
 	config           DetectorConfig
-	patternStore     *sqlite.PatternStore
-	observationStore *sqlite.ObservationStore
+	patternStore     *gorm.PatternStore
+	observationStore *gorm.ObservationStore
 
 	// Vector sync callback
 	syncFunc PatternSyncFunc
@@ -71,7 +71,7 @@ type candidatePattern struct {
 }
 
 // NewDetector creates a new pattern detector.
-func NewDetector(patternStore *sqlite.PatternStore, observationStore *sqlite.ObservationStore, config DetectorConfig) *Detector {
+func NewDetector(patternStore *gorm.PatternStore, observationStore *gorm.ObservationStore, config DetectorConfig) *Detector {
 	ctx, cancel := context.WithCancel(context.Background())
 	return &Detector{
 		config:           config,