[CLAUDE] Docs: S87 closeout — PE multi-winner + budget=0 + cấp-KẾT-THÚC (Mig 58) + Section B 3-cột (Mig 59)

STATUS + HANDOFF S87 narrative + count flush (Migrations 57->59, test 377->402,
gotcha 73 unchanged) + session log 2026-06-24-S87 + agent-memory harvest
(cicd-monitor #344 / implementer-backend / investigator-codebase / reviewer /
test-specialist — spawn-record on-disk).

State THẬT: Mig 59 · 88 bảng (cicd flag 89 drift, re-ground monthly) · 402 test
(45D+357I) · gotcha 73 · menu 54 · bundle admin CXCKlNay/user Di40ewrF
(Run #344; #345 cicd-verifying Section B). Docs-only -> CI skip.

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

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

@@ -70,6 +70,8 @@ Bearer từ `POST api.solutions.com.vn/api/auth/login` → status matrix expecte
 
 ## 📅 Recent activity (compressed — full verbatim → `archive/2026-06.md` via `archive/_INDEX.md`)
 
+- **2026-06-24 PE 3-change recon (Lưu Trần/anh Kiệt CCM — multi-winner + budget=0-valid + per-step terminal):** ⭐ (A1 winner) cardinality=**SINGLE** scalar `PE.SelectedSupplierId Guid?` (`PurchaseEvaluation.cs:28`); cmd `SelectPurchaseEvaluationWinnerCommand(PEId,Guid?)` `PurchaseEvaluationDetailFeatures.cs:392` handler `:398-423` (null=clear S85-C5); ctrl `/select-winner` `PurchaseEvaluationsController.cs:167-172`. winnerQuoteTotal=**DERIVED** SUM `Quote.ThanhTien WHERE SupplierId==Selected` 3 sites: read `PurchaseEvaluationFeatures.cs:1089` + submit-guard `PurchaseEvaluationWorkflowService.cs:191` + ccm-delegate `:868`. ⚠️ Quote ALREADY has `IsSelected bool` (`PurchaseEvaluationQuote.cs:15` per-item winner, UNUSED by total). Multi-winner = NEW junction OR reuse IsSelected + change predicate `==Selected`→`IN selectedSet`. FE single `<Select>` `PeDetailTabs.tsx:961-991` (NccSelectorRow). (A2 budget=0) BLOCKED 2 layers: validator `.GreaterThan(0).When(HasValue)` create `:55` + UpdateDraft `:233` + budget-adjust `:339`; submit-guard `effectiveBudget<=0`→missing `PurchaseEvaluationWorkflowService.cs:213-216` (effective=`BudgetPeriodAmount??ProInitialAmount` S85-D3). FE `effBudget<=0` `PeDetailTabs.tsx:211,237` canSubmit `:242`. To allow 0: relax `>0`→`>=0` validator + submit `<0` + FE. winnerQuoteTotal-gate SEPARATE `:194`. (A3 terminal) `ApprovalWorkflowLevel` already has 6 per-slot bool flags (`ApprovalWorkflow.cs:104-131`: AllowReturnOneLevel/OneStep/ToAssignee/ToDrafter/EditDetails/EditBudget/**SkipToFinal**); `CeoApprovalThreshold decimal?` on WORKFLOW `:43`. Finalize branches `ApproveV2Async`: terminal `nextIdx>=steps.Count` `:905-916` + ccm-delegate opt-in `:854-891` + skipToFinal `:803-844`. "Approve-ends-here" = NEW per-Level bool mirror SkipToFinal but set Phase=DaDuyet (like ccm-delegate but no threshold). Designer FE = `fe-admin/ApprovalWorkflowsV2Page.tsx`. **schema-decision forks→em-main:** (1) multi-winner storage: reuse Quote.IsSelected vs new PE↔Supplier winner-junction (2) budget=0 vs budget-null distinction post-relax (3) terminal flag scope per-Level vs per-Step + interaction w/ CeoApprovalThreshold (both finalize → ordering). → _INDEX.
+
 - **2026-06-23 PE UAT recon D2/D4/D5 (anh Kiệt FDC go-live):** ⭐ (D2-urgent authz) `PurchaseEvaluationUrgentFeatures.cs:49-50` BẤT-ĐỐI-XỨNG `isPro=IsUrgent?hasPro:(hasPro&&isDeptManager)` — GẮN=role-only / GỠ=DeptManager-only. NO DrafterUserId match (handler chỉ load entity, never reads DrafterUserId). Để drafter gỡ cờ mình: sửa :49-50 OR `actor.Id==entity.DrafterUserId`. Endpoint `PUT /purchase-evaluations/{id}/urgent` (controller:91). ⚠️ cờ KHÔNG split-by-drafter (PRO/CCM = role, drafter ≠ tất nhiên PRO/CCM). (D5) FE PE-create dropdown=`PeWorkspaceCreateView.tsx:94-104` GET `/approval-workflows-v2?applicableType={1|2}` filter `isUserSelectable`. **Dev DB: PE type1/type2 selectable=0** (6 selectable đều type3-9 Contract/Proposal/Leave/OT/Xe/Ticket NOT PE) → prod UNVERIFIED (SSH-paren-quote-trap). Validator REQUIRE workflow CẢ 2 tầng: `PurchaseEvaluationFeatures.cs:48` create NotEmpty (S83) + submit-guard `PurchaseEvaluationWorkflowService.cs:225` ConflictException. (D4 required) create-validator `:35-57`: Type/TenGoiThau≤500/ProjectId/WorkItemId/ApprovalWorkflowId NotEmpty + BudgetPeriodAmount>0-when-present. Submit-guard `:174-228`: SelectedSupplierId + winnerQuoteTotal>0 + BudgetPeriodAmount>0 + Bảng-so-sánh-attachment + ApprovalWorkflowId. → _INDEX.
 - **2026-06-20 governance-landing map (RC-sig + User-Mark H12/13 + objective-criteria):** ⭐ WHERE-to-land 3 AI_INFRA gov broadcasts. `harness-11-engine.md` = CANONICAL engine (D5/D6/D7 safety-tier + D8 one-direction-lock + D9 single-writer + D10 Bash-residual + CAVEAT no-OS-hook). `error-ledger.md` = §L.a AS-1..13 + §L.b 7-step. adap-report FORMAT richest = `2026-06-18-Governance-harness-11.md`. rules.md §6.6 = objective-criteria. **report-before-stamp ⊂ D7 (extend, đừng duplicate → C3 vocab-fork).** → _INDEX.
 - **2026-06-20 Harness-14 Eval/Budget/Outcome audit:** ⭐ H-14 = time/age/recency-decay KHÔNG được làm căn-cứ cắt feature. (1) BUDGET aligned: `memory-budget.json` 0 decay/TTL/age hit; `keep_floor=5`=newest-protection (drains OLDEST), cap seed-by-MEASURE. (2) detectors = canonical-anchor-vs-STATUS + disk-cross-check, ZERO age-window. (3) EVAL genuine: `eval/golden-set-solution_erp.jsonl` (14q) + `evaluator.md` recall@5≥0.7 — weekly-manual no-automation. (4) anti-downgrade = Harness-8 "all-inherit chất-lượng>chi-phí" PARTIAL (no generic rule in rules.md, grep 0). → _INDEX.