[CLAUDE] Docs: S52 closeout — Phase 11 D+E+F deployed + database-agent + session-limit recovery

STATUS/HANDOFF S52 (Phase 11 product COMPLETE, test 200, Mig 46, roster 11, bundle DYfjnpY0/_3S0BPJ2). Session log. Proxy-append implementer-backend + test-specialist diaries (Wave 2 agent killed by session-limit truoc MEMORY step).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

docs/HANDOFF.md

@@ -2,7 +2,28 @@
 
 > **Tiering rule (S40):** giữ **2-3 session gần nhất**. Cũ hơn → `docs/changelog/sessions/`. Full brief history pre-S40 → `docs/_archive/HANDOFF-preS40-fullhistory.md`.
 
-**Last updated:** 2026-06-08 (Session 51 — **P11-C Vehicle+Driver catalogs (Mig 44) + gotcha #57 ext 3 HRM catalog (Mig 45)**, HMW-mode ON product feature, deployed prod Run #371. 7-agent fan-out, reviewer caught Driver FE↔BE required-field contract mismatch → fixed. test 181→186, tables 91→92, bundle admin `Cg9mvltU`/user `YgqDvsqr`. ⚠️ RAG/Qdrant DOWN cả session (file-based fallback). gotcha #57 EXT Master (Department/Supplier/Project, Mig 46) → separate worktree session. Prev S50: Harness 1·2·3 verified-runtime.)
+**Last updated:** 2026-06-08 (Session 52 — **Phase 11 product backlog ĐÓNG TRỌN (P11-D+E+F deployed prod)** + database-agent adopt. HMW-mode ON. 3 commit (`e9ee97f`+`6a66429`+`dcf76f8`). Test 186→**200**. Mig 46. Bundle admin `DYfjnpY0`/user `_3S0BPJ2` (deploy verified curl độc lập). ⚠️ **Session-limit hit giữa Wave 2** → recovery on-disk + em main solo FE + curl-self-verify. 🔴 database-agent CHỜ CLI restart. Prev S51: P11-C Vehicle+Driver.)
+
+---
+
+## S52 (2026-06-08) — Phase 11 D+E+F close + database-agent adopt (HMW-mode ON · session-limit recovery · deployed prod)
+
+**User: `/session-start` → "Cả 3 (D+E+F)" → pivot "Adopt database-agent" → để em chạy. 3 commit deployed prod.**
+
+**Done (3 commit, deploy verified curl độc lập — no cicd-spawn do limit):**
+- **database-agent adopt** (`e9ee97f`) — AI_INFRA broadcast `2026-06-08-Agent-database-codebase-agents`. Floor DB1–DB11 **READ-advisory** (impl-backend vẫn author) · skill `sql-database-assistant`+`ef-core-migration` · color OMIT · `store_memory` strip · DB11 vá S43 lost-update. **codebase-agent SKIP n-a** (investigator + csharp-lsp Windows no-op). Roster 10→**11**. **Nấc executed-file → CHỜ restart.**
+- **Wave 1 (`6a66429`) P11-E+F migration-free:** P11-F MaTicket gen-on-Create (`IT/2026/NNN` Serializable). P11-E AttendanceReport monthly aggregate (OtPolicy multiplier, day-type in-memory) + Excel ClosedXML + fe-admin report page (download authed blob). reviewer PASS (gotcha #44 disarmed: decoy `"QTV"`=display-code). +5 test.
+- **Wave 2 (`dcf76f8`) P11-D Mig 46:** round-robin least-loaded dept-"IT" (seed dept IT + nv.cao/nv.truong, ordering sau SeedDemoUsers) + SlaDueAt-by-Priority (4/8/24/72h) + `ItTicketSlaJob` (breach+warning, **no auto-transition**) + PUT /assign + FE badge 2-app SHA256 mirror. +9 test. em main self-review (limit).
+- **Deploy verified:** admin `DYfjnpY0`/user `_3S0BPJ2` rotate · api 200 (Mig 46 applied) · /it-tickets+/assign+/attendances/report 401 wired. **Test 200 PASS** (58+142).
+
+**⚠️ Session-limit recovery lesson:** 3 agent killed mid-Wave-2 (FE/test/cicd, "resets 1:10pm"). Recovery: BE/test verify-on-disk (build 0-err + 200 test) · **em main solo FE redo** (gotcha #53-class fallback) · **curl-self-verify** deploy thay cicd-spawn. → **git/disk/prod = source-of-truth, KHÔNG agent return-message** (`feedback_implementer_truncation_mitigation`).
+
+**🔴 NEXT SESSION:**
+- **🔴 RESTART CLI** → activate `database-agent` (registry load, no hot-reload) → spawn-test 1 task DB nhỏ (đọc schema `sys.tables` / introspect ItTicket) → upgrade executed-file → **verified-runtime**. adap-report nấc update.
+- **Memory-proxy debt:** Wave 2 `implementer-backend` + `test-specialist` diaries KHÔNG update (killed trước MEMORY step) → em main proxy-append S52 learnings (round-robin dept-pool · SLA-window-shared-map · seed-ordering-sau-SeedDemoUsers · round-robin/SLA-due test pattern). **Đã proxy S52 closeout** (xem agent-memory).
+- **H1/H2 monitor closeout SKIPPED S52** (session-limit) → next `/session-start` re-report tooling/harvest diff.
+- **Follow-up minor:** ItTicket reassign-UI (endpoint `/assign` sẵn) · P11-E menu-key promote (hiện via button) · **gotcha #57 EXT Master = Mig 47** (Mig 46 đã dùng P11-D) · RAG re-index S42-S52 (AI_INFRA op, stale 05-29).
+- **Product:** Phase 11 = DONE. Next = Phase 9 Ops (SMTP/creds/backup/UAT real-user) — anh main coordinate.
 
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