[CLAUDE] Docs: S70 session-end closeout — Harness-9 STATUS/HANDOFF/log + doc-drift 4-flush + agent-memory provenance

- STATUS.md + HANDOFF.md: S70 entry (Harness-9 L2 dark-matter recovery + adap 2-workflow mandate, 0 production code, 3-stage Workflow run-id, 4 over-cap sub <25KB cap, P1 curate-debt CLOSED).
- docs/changelog/sessions/2026-06-17-S70-harness-9-l2-recovery.md: full session log.
- §L.g doc-drift 4-flush (H1 tooling CHỐT): dependency-audit-erp/SKILL.md:153 (65->68) + skills/README.md:20 (Mig 52->53) + :90 (65->68) + session-start.md:44 (58->68).
- §L.d/f agent-memory provenance (H2 harvest GATE CONDITIONAL PASS): 4 curate-log refresh -> S70 (was stale S40/S66/S69) + read-side fix MEMORY.md L5 header -> _INDEX.md (3/4 had 0 refs; reviewer already had it). All 4 MEMORY.md still <25KB auto-inject cap.

State unchanged (0 production code): Mig 53 / 88 tables / 306 test / 68 gotchas / menu 54 / bundle BgNCjwsG-CBvh0vtf.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

.claude/agent-memory/investigator-codebase/MEMORY.md

@@ -90,4 +90,4 @@ Bearer từ `POST api.solutions.com.vn/api/auth/login` → status matrix expecte
 
 ## 🔄 Curate trigger
 - >~30KB → archive recent → L2 `archive/<period>.md`. Stale >3mo → remove.
-- **Last curate: 2026-05-29 S40 em main proxy** (35.7→~20KB): archived 7 FIFO S29-S36 → q4 + git d2f52ba, refreshed stale essentials S25→S40 numbers, trimmed memory-list. Prev: S34 q3 · S32 q2 · S22 q1.
+- **Last curate: 2026-06-17 S70 Harness-9 (em-main + Stage-B workflow)** (47.0→24.1KB): L2 dark-matter recovery — 15 entries → `archive/2026-06.md` (additive) + 3 oldest → NEW `archive/2026-05-q4.md` (was git-only d2f52ba) + `_INDEX.md` (substring sha-keyed) + `2026-0{5,6}.gist.md` (distill-gen:1). Also Stage-A recon actor (`wf_be952f3c-97f` — substring-pointer-design decision). 0-byte-loss verified (em-main self-gate, reviewer no-StructuredOutput). Prev: S40 (35.7→~20KB q4+d2f52ba) · S34 q3 · S22 q1.