[CLAUDE] Docs: S116 closeout — PE negative-quote (STATUS/HANDOFF/session-log + harvest)

- STATUS/HANDOFF prepend S116 (test 486->495 · bundle Dd55jBpj/DVDr1UQ4) + fix
  D1 Tests-row (486->495, 441->450 Infra) + D2 bundle-live-pointer (tooling-auditor
  caught 2 derived-summary lags below the mega-line).
- Session log 2026-07-13-S116-pe-negative-quote.md.
- Harvest: investigator-codebase on-behalf S116 (invest lanes RETURN-only) +
  reviewer/impl-fe/impl-be/test/cicd self-written · monitor diaries (harvest-curator
  self-compact moved-not-cut + tooling-auditor archive-move).
- §5.0 squash 2 wal-trailing (dfa1c8c/0edbc58, post-feature Stop-hook flush) folded here.
- Feature already shipped 88368fd (Run 386 PASS 5m28s); this commit = docs/memory/run-trace
  only -> CI skip (paths-ignore #41).

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

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

@@ -103,6 +103,9 @@ Bearer từ `POST api.solutions.com.vn/api/auth/login` → status matrix expecte
 
 ---
 
+## S116 — PE negative-quote invest (on-behalf, fable-clone ensemble)
+- **2026-07-13** `/fable-clone investigator-codebase` 4-lane (`wf_eaf52972-d18`: FE-surface/BE-surface/Budget-consumers/Edge-precedent-tests) điều tra PE cho-nhập-giá-âm ô báo giá. **Kết luận hội-tụ = FE-ONLY:** BE/DB nhận âm SẴN (0 validator `UpsertPurchaseEvaluationQuoteCommand` `PurchaseEvaluationDetailFeatures.cs:272`, `ThanhTien decimal(18,2)` no CHECK constraint — grep `HasCheckConstraint`=0); **ngân sách GIỮ NGUYÊN bằng kiến-trúc** (`PeWorkItemBudgets` chỉ ghi bởi command budget role-gated `:105/175/242`, quote write-path `:308-343` KHÔNG đụng budget). Chặn âm = 3 chốt FE (`parseVnd:51` strip `-`, `formatVndInput:52` n>0→blank, submit-gate `:2226` `>0`); pattern sign-aware `VndInlineEdit:1003` (allowNegative + neg-state + ±toggle) có SẴN cùng file → tái dùng. Precedent LeaveBalance `PurchaseEvaluationFeatures.cs:348` cho số-dư-âm. 5 consumer SUM(ThanhTien WHERE IsSelected): winnerQuoteTotal/CCM-threshold/giaTri/so-ngân-sách/submit-guard — chỉ submit-guard `:206` hard-reject. gotcha #81 độc-lập dấu (IsSelected boolean). **⚠️ Lesson:** quote sống ở `details[].quotes` KHÔNG `suppliers[].quotes` (`PeSupplier` no quotes-field) — FE-impl-agent verify-on-disk sửa spec-shape-error. **Detail đầy đủ:** `.claude/workflows/runs/2026-07-13-pe-negative-quote/` (run.md+spec) + session-log `2026-07-13-S116`. `[engine: fable-clone-ensemble · Opus-S116]`
+
 ## 🔄 Curate trigger
 - >~30KB → archive recent → L2 `archive/<period>.md` (byte-exact append) + `_INDEX.md` substring pointer. Stale >3mo → remove.
 - **Last curate: 2026-07-06 (em-main single-writer, hook-triggered @21.4KB)** — 6 stale governance/superseded entries (S93/S97/S98/S100/S101 + 07-01 Supplier-predecessor) verbatim → `archive/2026-07.md`, replaced with pointer-stubs. L1 back under target.