[CLAUDE] Docs: chốt Session 20 WRAP — 12 turn + 14 commit + 2 memory mới + 3 sub-agents setup

Session 20 wrap-up cuối ngày 2026-05-11 sau turn 12 multi-agent setup.

### Session log mới (turn 6 + 8-12)

`docs/changelog/sessions/2026-05-11-2200-pe-polish-responsive-multiagent.md`
- Turn 6 manual budget drop tên field
- Turn 8 NCC 5-màu palette + Winner 🏆 badge (initial)
- Turn 9 revert badge → icon ✓ đậm + hover
- Turn 10 AddSupplier auto-fill master
- Turn 11 responsive laptop nhỏ 4-tầng pattern
- Turn 12 multi-agent infrastructure setup 3 sub-agents

### MD updates

STATUS.md:
- Last updated S20 WRAP 22:00
- Recently Done row mới wrap turns 6+8-12 trên đầu (giữ S20 turn 7 + S20 t1-5 nguyên §6.5)

HANDOFF.md:
- Last updated S20 WRAP
- TL;DR Session 20 WRAP trên đầu (3 chủ đề + Stats + Multi-agent state + Memory mới + Pending S21+ + Audit cadence)
- Giữ TL;DR Session 20 turn 7 + S20 + S19 nguyên văn §6.5

migration-todos.md:
- Phase 9 WRAP S20 section trên cùng (stats final + memory mới + defer S21+ Trial Week 1)
- Giữ Session 20 turn 7 + S20 + S19 nguyên §6.5

### Multi-agent MEMORY.md sync

.claude/agent-memory/investigator/MEMORY.md:
- Count 14 → 16 memory entries
- +2 entry references (feedback_responsive_laptop_breakpoint + feedback_multi_agent_setup)

### Status agents chốt session

3 sub-agents seeds-only state — chưa spawn work. KHÔNG có findings cross-agent
flush ở session này (vừa setup turn 12). Trial Week 1 kick off Session 21
với Contract V2 wire Mig 28+29 candidate.

### Tests baseline preserve

dotnet test SolutionErp.slnx — 81/81 PASS (58 Domain + 23 Infra) — Phase 9
UAT iteration defer test increment per chunk (memory feedback_uat_skip_verify).

### Path filter CI sẽ skip (.gitea/workflows paths-ignore docs/** + .claude/**)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

docs/changelog/migration-todos.md

@@ -157,6 +157,40 @@ Session log: `2026-04-28-chot-session-4-budget.md`.
 
 ## 📝 Phase 9 — UAT + Ops + carry over (Session 6+ active)
 
+### ✅ Session 20 WRAP done (2026-05-11 chốt 22:00) — 14 commit `9dee00d` → `ae1814c`
+
+12 turn 1 ngày — PE UI restructure 3 chủ đề + Mig 27 menu eOffice + Multi-agent setup.
+
+**Session log:** 3 file
+- `2026-05-11-1100-pe-ui-restructure-s20.md` (turns 1-5: PE Detail nested grid + Section gộp)
+- `2026-05-11-1700-menu-visibility-mig27.md` (turn 7: admin menu eOffice Mig 27)
+- `2026-05-11-2200-pe-polish-responsive-multiagent.md` (turns 6 + 8-12: polish + responsive + multi-agent)
+
+**Stats final S20:**
+
+| Metric | Δ | Final |
+|---|---|---|
+| Migrations | +1 (Mig 27) | 27 |
+| Endpoints | +1 (PATCH /menus/{key}) | ~142 |
+| FE pages | +1 (MenuVisibilityPage) | 34 |
+| Menu keys | +1 (MenuVisibility) | ~61 |
+| Memory entries | +2 (responsive + multi-agent) | 16 |
+| Sub-agents | +3 NEW (Inv + Imp + Rev seeds) | 3 |
+| Commits | 14 | (`9dee00d` → `ae1814c`) |
+| DB tables | 0 | 59 |
+| Tests | 0 (Phase 9 UAT defer) | 81 PASS |
+| Gotchas | 0 | 44 |
+| Skills | 0 (reuse trong agents) | 6 |
+
+**Memory entries mới (2):**
+- `feedback_responsive_laptop_breakpoint.md` (t11) — 4-tầng responsive pattern
+- `feedback_multi_agent_setup.md` (t12) — decision gate + ACCEPT/REFUSE + Windows MAX_PATH
+
+**Defer Session 21+ NEW:**
+- [ ] **Trial Week 1 — Contract V2 wire Mig 28+29** (Plan cha B HIGH) — kick off multi-agent với Investigator pre-flight + Implementer Chunk A-E + Reviewer pre-commit. Audit-reuse pattern PE V2 (memory `feedback_audit_reuse_before_clone`).
+- [ ] **Test regression Mig 27 PATCH /menus/{key}** (Plan cha C MED) — validate Key required + DisplayLabel trim
+- [ ] **Skill `permission-matrix`** cross-ref section "menu visibility" — defer cron audit 2026-06-01
+
 ### ✅ Session 20 turn 7 done (2026-05-11) — Admin Ẩn/Hiện + Đổi tên menu eOffice (Mig 27, 5 chunk `2ea2d27` → `ef394f8` → `059bfcb` → `1ed6530` → Chunk E Docs)
 
 User UAT yêu cầu admin quản lý menu eOffice (fe-user) — Ẩn/Hiện + Đổi tên. Confirm "chưa có" → tạo mới. User Q2=b clarify quan trọng: DisplayLabel CHỈ áp fe-user, admin sidebar giữ Label gốc.