[CLAUDE] Docs: chốt Session 20 — PE Detail UI restructure 3 yêu cầu UX (Chunk D)

Wrap-up docs cho 3 chunk code đã push:
- 9dee00d Chunk A — BE auto-seed Hạng mục mặc định + FE reorder section
- 2bba851 Chunk B — Nested grid HangMucCard, NCC expand inline + drop SuppliersTab
- f2f01f4 Chunk C — Section Ý kiến gộp đồng cấp cùng Phòng (1 box/Step, chỉ hiện signed)

Files updated:
- docs/STATUS.md — Last updated + Recently Done row S20 trên cùng (giữ S19 nguyên văn §6.5)
- docs/HANDOFF.md — Last updated + TL;DR Session 20 section ở đầu + pending S21+ + hard blocker ops (giữ S19 nguyên văn §6.5)
- docs/changelog/migration-todos.md — Phase 9 Session 20 done section + 9 defer item S21+ (giữ S19 nguyên văn §6.5)
- docs/changelog/sessions/2026-05-11-1100-pe-ui-restructure-s20.md (NEW) — session log

KHÔNG đụng rules/architecture/PROJECT-MAP/workflow-contract/forms-spec/database-guide/
schema-diagram/CLAUDE.md per §6.5 (S20 không thêm migration / gotcha mới, drift unchanged từ S19 → defer cron audit 2026-06-01).

Path filter CI sẽ skip (docs-only commit).

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

docs/changelog/migration-todos.md

@@ -157,6 +157,32 @@ Session log: `2026-04-28-chot-session-4-budget.md`.
 
 ## 📝 Phase 9 — UAT + Ops + carry over (Session 6+ active)
 
+### ✅ Session 20 done (2026-05-11) — PE Detail UI restructure 3 yêu cầu UX user (4 chunk `9dee00d` → `2bba851` → `f2f01f4` → Chunk D Docs)
+
+User UAT live feedback: "Logic khá OK rồi, điều chỉnh UI Duyệt NCC 1 tý". 3 yêu cầu cụ thể chốt qua Q&A 4 câu (Q1=a giữ Section "Chọn NCC TP" / Q2=a NCC shared + 1 hạng mục demo / Q3=a chỉ hiện NV đã ký / Q4 public luôn skip dotnet test). FE-only restructure (1 hook BE nhẹ auto-seed Detail).
+
+- [x] **Chunk A (`9dee00d`) BE auto-seed + FE reorder section** — `CreatePurchaseEvaluationCommandHandler` thêm 1 PurchaseEvaluationDetail mặc định khi tạo phiếu: GroupCode="01", GroupName="Hạng mục chính", NoiDung=TenGoiThau, DonGiaNganSach=ThanhTienNganSach=Budget.TongNganSach (nếu link) hoặc BudgetManualAmount fallback hoặc 0; Changelog Insert audit. FE reorder PeDetailTabs section (mirror 2 app): 1.Thông tin / **2.Hạng mục lên #2** / 3.Chọn NCC / 4.NCC tham gia / 5.Ý kiến. Verify dotnet build pass.
+
+- [x] **Chunk B (`2bba851`) Nested grid Hạng mục → NCC expand** — ItemsTab restructure thành list `HangMucCard` (1 card / 1 hạng mục, expanded=true mặc định cho 1 hạng mục demo). Header: GroupCode + NoiDung + 3 stat (KL/ĐG/TT) + NS link Δ + Pencil/Trash + ▼/▶ toggle. Expand body: NCC inline table 8 cột (NCC/Liên hệ/Điều khoản TT/**File báo giá**/ĐG chưa VAT/ĐG có VAT/Thành tiền/Action). Click cell quote → QuoteDialog reuse. + Thêm NCC / Sửa NCC reuse 2 dialog cũ. Winner ✓ button per row. Drop `SuppliersTab` function dead code ~134 LOC. Giữ AddSupplierDialog + EditSupplierDialog + SupplierAttachmentsCell (HangMucCard call lại). Section 4 NCC tham gia cũ bỏ → 4 section final (1.Thông tin / 2.Hạng mục nested / 3.Chọn NCC TP thắng thầu / 4.Ý kiến). Verify npm build × 2 app pass sau khi catch TS6133 SuppliersTab + SupplierAttachmentsCell unused.
+
+- [x] **Chunk C (`f2f01f4`) Section Ý kiến gộp đồng cấp cùng Phòng** — FE-only KHÔNG đụng Mig 26 schema (vẫn UPSERT 1 row / Level qua Service). LevelOpinionsSectionV2 forEach step → 1 `StepOpinionsBox` (replace grid-cols-2 N approvers). Header: "Bước N — Tên" + dept badge emerald + "X/Y đã duyệt" counter. Body filter opinions theo step.order → sort levelOrder asc + signedAt asc → render `StepOpinionEntry` per signed (tên NV + Cấp badge slate + admin override badge amber nếu có + emerald rounded-full timestamp + comment whitespace-pre-wrap). NV chưa duyệt KHÔNG hiển thị (Q3=a). Drop `LevelOpinionBox` function. Mirror fe-admin + fe-user. Verify npm build × 2 app pass.
+
+- [x] **Chunk D Docs (current)** — STATUS Recently Done top + header narrative · HANDOFF TL;DR Session 20 + pending S21+ + hard blockers ops carry · migration-todos Phase 9 Session 20 done section (file này) · Session log mới `2026-05-11-1100-pe-ui-restructure-s20.md`. KHÔNG đụng rules/architecture/PROJECT-MAP/workflow-contract/forms-spec/database-guide/schema-diagram/CLAUDE.md (defer cron audit 2026-06-01 — per §6.5 không cố sửa khi không cần; S20 không thêm migration / gotcha mới nên count drift không đổi từ S19).
+
+**Stats final Session 20:** 26 mig (no new), 59 DB tables (no new), ~141 endpoints (no new — reuse + 1 BE hook trong existing CreatePE handler), 33 FE pages (no new), **81 test pass** (no change — Phase 9 UAT iteration skip test mỗi chunk Q4), 44 gotcha (no new). LOC delta net ~+25 FE (gross ~+700 / ~−725).
+
+**Defer Session 21+:**
+
+- [ ] **Test V2 Service wire** (Chunk B Service hook S19 + Section gộp Chunk C S20) — defer khi UAT user confirm + có sample data Production.
+- [ ] **Test regression B4 silent 403 S18** (HIGH §7 priority — vi phạm rule test-before bug fix) — per-action `[Authorize(Policy=...)]` ApprovalWorkflowsV2Controller.
+- [ ] **Test Mig 25 PATCH user-selectable** endpoint (MED — admin scope hẹp).
+- [ ] **Contract V2 wire (Mig 27/28 mirror PE pattern)** — biggest pending Plan. Mig 27 Contract.ApprovalWorkflowId + CurrentApprovalLevelOrder; Mig 28 ContractLevelOpinions; Service ApproveV2Async; ContractCreatePage Workspace Select V2; pin V2 mặc định cho ContractType; ContractDetailContent Section "Ý kiến cấp duyệt" V2 dynamic mirror S20 Chunk C.
+- [ ] **Phân quyền strict V2** — vẫn loose UAT. Sau confirm V2 flow → list/inbox/detail filter actor scope.
+- [ ] **Drop legacy V1 cleanup** sau UAT chốt (drop tables WorkflowDefinitions/Steps/Approvers + drop column RejectedAtStepIndex/RejectedFromPhase deprecated S17 + drop ApproveV1LegacyAsync branch).
+- [ ] **Drop Mig 15 cho V2 phiếu cleanup** sau UAT confirm (Mig 30 drop PurchaseEvaluationDepartmentOpinions, hoặc giữ cả 2 backward compat — Q3 user chốt giữ legacy).
+- [ ] **schema-diagram §16 PE Level Opinions V2 + §17-21 Mig 18-21** — defer cron audit 2026-06-01.
+- [ ] **Skill `ef-core-migration` frontmatter "21 migration" stale (thực 26) + `dependency-audit-erp` count gotcha 41 stale (thực 44)** — defer cron audit 2026-06-01.
+
 ### ✅ Session 19 done (2026-05-09) — PE Section 5 V2 dynamic theo ApprovalWorkflowLevel + Mig 26 (4 commit `873e7a1` → Chunk D Docs)
 
 User UAT live tiếp Session 18. 1 polish nhỏ + 1 feature lớn (Section 5 dynamic). Spec chốt 5 câu Q&A trước code (Q1=1B sync auto / Q2=2A+Admin / Q3=V2 hết / Q4=4C+placeholder / Q5=5A grid-cols-2).