v0.2.0: drop cursor, add source_entries lifecycle, mandate memory frontmatter

Lifecycle redesign:
- Each proposal records source_entries: [<ts>...] in frontmatter listing
  the journal timestamps that fed its cluster.
- After apply/reject, skill calls adam/scripts/adam-archive.mjs which moves
  matching entries from journal.jsonl to journal/actioned-<id>.jsonl.
- Agent reads applied/ + rejected/ frontmatter on each /reflect, builds an
  excluded-timestamps set, skips any leftover already-actioned entries.
- cursor field in state.json is vestigial; agent ignores it.

Effect: journal stays bounded by active observations. Rule changes
re-evaluate the remainder without manual rewind. Race-safer for parallel
sessions on shared state.json (no cursor write contention).

Memory drafting:
- agents/adam.md adds 'Memory drafting protocol' parallel to Skill drafting.
- Memory proposals MUST contain auto-memory frontmatter (name, description,
  type, originSessionId) in '# Proposed change' body.
- Skill enforces frontmatter check at apply time; refuses if missing.

Tests: 18 -> 21. Two new tests for adam-archive happy path + no-op.

Migration: existing applied proposals lack source_entries. Their backing
journal entries archived as a one-time bulk migration; legacy proposals
annotated with migration note.

README.md

@@ -36,15 +36,16 @@ LLM coding sessions reveal repeated friction the moment you stop and look. ADAM
 ├── skills/adam-self-improvement/SKILL.md  # /reflect protocol
 ├── commands/reflect.md       # /reflect slash command
 └── adam/
-    ├── journal.jsonl         # append-only signal log
-    ├── journal/              # rotated daily logs (>5 MB threshold)
-    ├── state.json            # cursor + per-session counters
-    ├── usage.json            # skill/agent invocation tallies
+    ├── journal.jsonl         # append-only signal log (active observations)
+    ├── journal/              # rotated daily logs + actioned-<id>.jsonl per applied/rejected proposal
+    ├── state.json            # per-session counters (cursor field is vestigial as of v0.2.0)
+    ├── usage.json            # skill/agent invocation tallies + payload visibility counters
     ├── proposals/            # queued, awaiting review
     ├── applied/              # approved + auto-applied archive
     ├── rejected/             # rejected (with reason)
     ├── trash/                # soft-deleted artifacts (recoverable)
-    └── tests/run-tests.sh    # 18 verification tests
+    ├── scripts/              # adam-archive.mjs (called by skill on apply/reject)
+    └── tests/run-tests.sh    # 21 verification tests
 ```
 
 ## Install
@@ -71,7 +72,7 @@ After install:
 ```
 Sum:
 +2  Signal repeated ≥3× across ≥2 sessions
-+2  Struggle signal repeated ≥3× within a single session (does not stack with above)
++2  Struggle signal appearing ≥1× within a single session (does not stack)
 +2  Transcript contains positive endorsement near related action
 +1  Multi-axis cluster (≥2 distinct struggle types in same session)
 -1  Type-bias penalty (≥3 rejections, applied:rejected <1:2)
@@ -88,6 +89,14 @@ auto_apply_eligible requires ALL:
   cross_session_evidence == true (single-session-only proposals always queue)
 ```
 
+## Lifecycle: how proposals become permanent
+
+Every proposal records the journal entry timestamps that fed its cluster (`source_entries` in frontmatter). When you apply or reject a proposal, the skill calls `adam/scripts/adam-archive.mjs` which moves matching entries from `journal.jsonl` to `journal/actioned-<id>.jsonl`. Effects:
+
+- The `journal.jsonl` stays bounded by **active** observations only.
+- The next `/reflect` reads applied/ + rejected/ frontmatter, builds an excluded-timestamps set, and skips any leftover journal entries that were already actioned.
+- Rule changes (e.g. lowering a threshold) immediately re-evaluate the remaining active observations — no manual cursor rewind needed.
+
 ## What it will not do
 
 - No background LLM spend. The analyst runs only when you invoke `/reflect`.