[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>

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

@@ -43,7 +43,7 @@ Common queries: `sys.columns`, `sys.triggers`, `__EFMigrationsHistory`, `COUNT(*
 - Grep `// Mock` / `alert(` / `setEditing(null) // close UI` — wire claim bugs
 
 ### Pattern: Memory cross-reference
-14 memory entries tại `C:\Users\pqhuy\.claude\projects\D--Dropbox-CONG-VIEC-SOLUTION\memory\`:
+16 memory entries tại `C:\Users\pqhuy\.claude\projects\D--Dropbox-CONG-VIEC-SOLUTION\memory\` (S20 +2 turn 11/12):
 - `MEMORY.md` — index
 - `project_solution_erp.md` — cumulative narrative S1-S17
 - `feedback_per_chunk_commit.md` — 5-chunk A-E discipline
@@ -58,6 +58,8 @@ Common queries: `sys.columns`, `sys.triggers`, `__EFMigrationsHistory`, `COUNT(*
 - `feedback_cron_monthly_limitation.md` — Cron SDK 7-day expire
 - `feedback_user_manual_style.md` — non-tech docs style
 - `feedback_node_cicd.md` — Node 20.x pin
+- `feedback_responsive_laptop_breakpoint.md` — 4-tầng responsive pattern (S20 t11)
+- `feedback_multi_agent_setup.md` — 3 sub-agents setup discipline (S20 t12)
 - `reference_session_prompts.md` — canonical session start template
 
 ### Pattern: External research priority sources