# Investigator-Codebase Agent — Persistent Memory

> **Persistent diary cross-session.** Auto-injected first ~200 lines at spawn (L1 HOT).
> Update BEFORE every stop. Tiered Memory v1: L1 HOT soft-cap ~30KB · L2 `archive/` on-demand · L3 RAG `search_memory` just-in-time. Keep entry ≤ 1.5K chars (gotcha #53).
> Full verbatim history pre-S40 → git `d2f52ba` + `archive/2026-05-q1..q4.md` + `archive/2026-06.md`. 🗺️ **Lookup map: `archive/_INDEX.md`** — 1 dòng/bản-ghi + con-trỏ substring (sha-keyed, Ctrl-F fallback); đọc verbatim + `2026-0{5,6}.gist.md` theo nhu cầu. **S80 curate: moved 15 recon entries S65→S76 + 2× 06-20 → archive.**
> **Renamed S39:** investigator → investigator-codebase (internal half; external → investigator-api).

---

## 🎯 Role baseline

Read-only INTERNAL audit SOLUTION_ERP codebase. Tools: Read, Grep, Glob, Bash + 5 RAG MCP. Output: concise findings <500 words + file:line refs. Skills: `contract-workflow` + `permission-matrix` + `ef-core-migration`.

## 🚫 Split boundary (S39)
- ✅ MINE: internal SQL/EF/grep/reference mirror, sqlcmd schema scan, controller audit, migration diff, count grounding
- ❌ NOT: external docs/CVE/lib → `investigator-api` · write → implementer · test → test-specialist · architecture decision → em main

---

## 📋 Patterns proven (apply confidently)

### Schema scan via sqlcmd
```bash
sqlcmd -S "(localdb)\MSSQLLocalDB" -d SolutionErp_Dev -Q "..."     # runtime API (primary)
sqlcmd -S "(localdb)\MSSQLLocalDB" -d SolutionErp_Design -Q "..."  # ef tooling
ssh vietreport-vps "sqlcmd -S .\SQLEXPRESS -d SolutionErp -U vrapp -P '...' -Q '...'"  # prod
```
Queries: `sys.columns`, `sys.triggers`, `__EFMigrationsHistory`, `COUNT(*)`, `sys.indexes`.
**Gotcha 2 LocalDB distinct** (`feedback_designtime_runtime_db`): `_Dev`=runtime (appsettings.Development), `_Design`=`dotnet ef` default. Prod password fallback `C:\inetpub\solution-erp\api\appsettings.Production.json` khi `$env:PROD_DB_PASSWORD` empty.

### Controller / wire-claim audit
- Grep `\[Route\("api/[a-z]+"\)\]` enumerate controllers · `\[Authorize(Policy = "..."` per-action policy (gotcha #44 silent 403 class-level quá strict)
- Grep `// Mock` / `alert(` / `setEditing(null) // close UI` — wire claim bugs · `IActionResult` vs `ActionResult<T>`

### Smoke verify catalog
Bearer từ `POST api.solutions.com.vn/api/auth/login` → status matrix expected vs actual + file:line evidence.

### Memory cross-reference
30 user-memory tại `C:\Users\pqhuy\.claude\projects\D--...\memory\MEMORY.md` (index). Key: per_chunk_commit · uat_skip_verify · designtime_runtime_db · per_nv_permission_scope · ef_migration_backfill_reorder · workflow_fanout_reliability · canonical_spec_over_broadcast (S79).

### External research → DEFER `investigator-api` (split S39)

---

## ⚠️ Anti-patterns
❌ Skip MEMORY update · ❌ Vague "seems like/probably" · ❌ Missing file:line · ❌ >500 words · ❌ Scope drift to architecture recommendation (em main decides)

---

## 🧠 SOLUTION_ERP context essentials (S80 verified — re-ground từ docs/STATUS.md canonical)

- **DB:** Dev `SolutionErp_Dev` · Design `SolutionErp_Design` (distinct) · Prod `.\SQLEXPRESS`/`SolutionErp`/`vrapp` via SSH `vietreport-vps`
- **Migration path:** `src/Backend/SolutionErp.Infrastructure/Persistence/Migrations/*.cs` (⚠️ NOT root `/Migrations/`). **57 mig**, last `AddPeSuggestedPriceNotes`.
- **Counts S80 (canonical docs/STATUS.md):** 57 mig · **88 SQL tables** (count `.ToTable()` ModelSnapshot NOT DbSet) · ~253 endpoints · 68 FE pages · **54 menu keys** (BE `MenuKeys` const) · **354 test** (45 Domain + 309 Infra) · **71 gotchas** (format `### N.`) · 30 user-memory · 6 skills · **11 sub-agents** (all-inherit H8)
- **Tech:** .NET 10 Clean Arch (Api→Application←Domain + Infra) + CQRS MediatR + EF Core 10 + 2 React 19 Vite 8 TS 6 (fe-admin :8082 + fe-user :8080) + SQL Server + Gitea CI + IIS
- **Prod:** api/admin/eoffice.solutions.com.vn · Gitea `git.baocaogiaoduc.vn/vietreport-admin/solution-erp` (Actions API `/api/v1/repos/.../actions/tasks` NOT `/runs` 404, cache stale ~2min gotcha #46 — cross-check VPS mtime). Bundle live admin `CsJetgZH`/user `BVS0ApIm` (Run #330).
- **Auth:** `admin@solutions.com.vn/Admin@123456` (full) / `nv.test@solutions.com.vn/TestUser@123456` (Drafter). Response `accessToken`+`refreshToken`+`user`. Password ≥12 chars.

---

## 🔄 Active workflow schemas (V1 + V2 coexist post-S17)

- **V1 Mig 21 flat** — `WorkflowDefinition` pin PE/Contract cũ. Match Dept+PositionLevel.
- **V2 Mig 22-31** — `ApprovalWorkflow` pin PE/Contract mới, match `ApproverUserId` 1-1 OR-of-N cùng Cấp. Steps (Phòng) > Levels (Cấp). PE + Contract đã wire V2 (Mig 32+33 S29). Proposal V2 (Mig 38). WorkflowApps skeleton (Mig 39).
  - Mig 25 IsUserSelectable · Mig 26 PE LevelOpinions UPSERT · Mig 29 Allow* per-NV · Mig 30 F4 AllowApproverEditBudget · Mig 31 SkipToFinal→ApproverLevel · Mig 53 cờ-gấp+CeoApprovalThreshold · Mig 54 giá-đề-xuất PRO/CCM+giá-chốt · Mig 56 ProInitial/ProAdjust · Mig 57 ghi-chú-giá.
- **State machine PE 5 trạng thái:** Nháp / Đã gửi duyệt / **Trả lại (TraLai=98)** / Từ chối (REMOVED-S60 hard-guard) / Đã duyệt
- **Mode Trả lại 4 option per-Level:** OneLevel (lùi 1 Cấp) / OneStep (lùi Bước trước) / Assignee (pick NV đã ký) / Drafter (Phase=TraLai). 3 mode đầu giữ ChoDuyet lùi pointer. Admin bypass `level.Allow*`.

---

## 📅 Recent activity (compressed — full verbatim → `archive/2026-06.md` via `archive/_INDEX.md`)

- **2026-07-03 S101 H19-adopt Lane-2 (mapping + model-tier compliance, WF1 investigate — VERDICT SOUND):** ⭐ Mapping CORRECT: reviewer=final-review-gate (Category 1-6 adversarial + Smart-Friend anti-rubberstamp `reviewer.md:268-276` + live-curl deploy-verify = H19 §3a "cổng rà-soát cuối" exact) · investigator-codebase=ground-truth-lane (`investigator-codebase.md:23-26` file:line-evidence + sqlcmd + grep + "if uncertain say uncertain" = H19 §3b "xác-minh sự-thật chống bịa-số/dẫn-chứng"). NO better-fit: investigator-api=EXTERNAL-docs (WebFetch, out-of-scope internal-truth) · database-agent=narrow DB-lens (subset không phải general fact-verify). **Model-tier checklist 12-pt: SE meets A1✅(settings pin `claude-fable-5[1m]` — `[1m]` VALID in settings.json ≠ frontmatter; Fable-down→Opus 1M H5-fallback = A1/A2 frontier-1M allowed) A2✅ A3✅(all-inherit=all-top, 5-fn map) A4/A5/A6 N/A-by-form(no tier-2/helper layer) B1✅ B2✅ B3✅(11 role-names SE-own, 0 copied) C1✅(11/11 `model: inherit` grep) C2✅(hmw.js `tier` field) C3✅(0 `[1m]` in FRONTMATTER model: line — 4 grep hits ALL prose: README:9/12/16 Upgrade-notes + database-agent:46 checklist).** ⚠️ Toggle-marker template EXACT-exists: `.claude/hmw-mode.on` gitignored AFTER `!.claude/**` last-match-wins (`.gitignore:87`); new `.claude/model-real-mode.on` MUST copy placement or gets un-ignored. ⚠️ Ảo-ensemble reuse: hmw.js `parallel()` :97 + synthesis machinery PRESENT (grep 10 hits) — but "S101 WF2 3-lane" is LIVE-mechanism NOT persisted artifact (runs/ = old 06-18 only, HMW-ephemeral S94+ pattern). VACUOUS-MET nuance TRUE: under all-inherit+Fable, 2 positions ALREADY top → H19 §4 "allow reach top-model" adds 0 runtime-delta; new value = toggle depth-control + Fable-outage multi-Opus>single-Opus. Tag `[s101-h19-lane2, mapping-sound, 12pt-compliance, marker-template, vacuous-met]`.
- **2026-07-02 (S100 H18-adopt WF1 `wf_50a817ce-a69` — 3 lane ∥, on-behalf em main APPEND B3, return-only 0-residual):** L1 measurer-coverage: 3/3 script (`mfe-eval:216`/`selfimprove:133-137`/`archive-gate:106`) **GLOB-LIVE 0-hardcode** — agent thứ 12 tự-cử; ⭐ ghost-wire-class MỚI: **config-key defined-but-unread** (`memory-budget.json:54-55` `role_file_glob`/`diary_path_pattern` — script re-hardcode giá trị TRÙNG → không detector nào flag vì cả 2 phía "đúng"; catch = grep key-name across scripts/) + latent skip-if-no-`tools:` (`selfimprove:147`, 0 affected 11/11 có). L2 ghost-wire+taxonomy: MAST=0 repo-wide (grep PHẢI case-sensitive `\bMAST\b` — insensitive dính "Master" noise); cron monthly = ghost-wire THẬT (CronList=0 + scheduler RỖNG 05-04 log + S96 chạy 13:04 em-main in-session); convention "auto = step em-main kích, no-OS-hook" nhất quán 5 nơi. L3 ledger-đo: `_ledger.md` true-orphan-catch **0/15 lifetime** (single-day artifact 06-18, 15 row/14 folder — mig54-R2 share) · mode-A coverage 0/8 S93+ · ⭐ "S71 `harvest/` rỗng" = **criterion-wording KHÔNG phải incident** (đính chính claim em-main) · repo có 5 "ledger" khác tên → sweep grep `_ledger` EXACT · hmw.js 0-touch. Tag `[s100-h18-wf1, 3-lane, ghostwire-configkey-class, ledger-0-15, on-behalf]`.
- **2026-07-02 S98 verify-lane V2 post-flush (VERDICT PASS):** detector 28→25 (derived-stale 11→8; wikilink 14 + vocab-fork 3 giữ by-design). **8 derived-stale còn = 100% FP-class count-token soft-net:** CLAUDE.md:84 tests-tree "(6 test…)" · ef-core SKILL :94/:95 ("2/1 migration tách/GỘP" history) + :103/:111/:114 ("4/3/1 bảng" Budget-defer/Mig-15 module-local) + :162/:179 (heading "Revert 1 migration" + comment "Script từ 1 migration") — 0 genuine drift vs canonical 61/89/440/79; SKILL edit sáng (+rows 60/61 @:82-83) chỉ shift line-number FP cũ, 0 flag MỚI. ⭐ Grep gotcha: **"Fable RESTORED" exact-string CHỈ STATUS:24 + session-start:29; agents/README dùng biến-thể "Fable 5 1M RESTORED" (:3) + "Fable-restore" (:12)** — exact-phrase grep miss README dù substance đủ. HANDOFF:5 mega-line: bundle mEGqlNWc/Dnrp4PU1=#484, CeTA7Z82 chỉ trong note "= #483" (1 line match duy nhất cả file). 3 on-behalf append đúng-chỗ: database-agent :36 (cuối Log = EOF) · reviewer addendum TRONG-entry S97-bis :68 (câu cuối + marker on-behalf @S98) · impl-fe S97-Part2 :16 giữa badge:9/S97:19. cicd "S98" = 2× "(curate S98)" stub :73/:74, 0 material-tag. Ledger :7 Mode-A ephemeral note (wf mode-A vắng ledger-row ≠ orphan) + bảng 15 row :11-25 nguyên.
- **2026-07-01 S97 session-end feedback-audit (VERDICT CLEAN):** Grep-verified capture readiness pre-close. ✅ gotcha #77/#78/#79 present `docs/gotchas.md:1301/1317/1325` (format `### N.` count=79 = STATUS header — no self-count drift; all 3 have Triệu-chứng+Cơ-chế+Fix+**Quy-tắc** root-cause). ✅ #53 return-garble **x6 (cicd 5/6)** in BOTH `feedback_agent_return_garble_recover.md` (Why-line ×5→×6 + **structural root-cause: cicd MEMORY self-target ~17.1KB→curate-at-return→thinking-step=message-cuối=return-value**; fix=archive-cicd-sớm NOT instruction) AND S97-log Parts 1/2/4 (lần-4/5/6). cicd MEMORY LIVE=17.5KB (confirms self-target). ✅ Mig 60 wrong-table BUG = 2-fix present: code (Mig 61 `20260701142752` query Changelogs) + guard (gotcha #79 "xác định ĐÚNG bảng writer" + "verify marker-count prod trước"). Mig 60 code `:29-31` confirmed `PurchaseEvaluationApprovals a...a.Comment LIKE` = wrong. Both Mig 60/61 have 3-file rule. ✅ git status CLEAN, 0 stray `.claude` misland, 0 `git add -A` in log, S97 workflows HMW-ephemeral (NOT persisted run-folders — consistent S94+ pattern, runs/ only old 06-18). ✅ Product decisions captured (STATUS/HANDOFF/log + commit-msg): "duyệt là fix"→#480 price-lock, "fix trọn"→Mig 60 endsBeforeCeo-runtime, "hiện luôn CEO duyệt"→#483 badge, Supplier-backlog "15-18 field"→STATUS Next-up. **MINOR only:** S97-log per-Part State footers show progression (Part-1 `:47` "88 bảng gotcha 77" stale vs session-end "89/79" Part-4 `:113`) — intentional per-part snapshot but mid-log reader sees stale count. No BLOCKING/MAJOR gaps.
- **2026-07-01 Supplier Excel-import GAP audit (anh Kiệt FDC — 30-col "Database NCC & Nhà thầu phụ" cho bên Pro):** ⭐ **Entity CỰC LEAN 9 domain-prop** (`Domain/Master/Supplier.cs:5-16`: Code·Name·Type·TaxCode·Phone·Email·Address·ContactPerson·Note) + 8 audit inherited (Base/AuditableEntity). EF `SupplierConfiguration.cs`: Code len50 UNIQUE-filtered `[IsDeleted]=0`(:24, Mig47 #57), Name200, TaxCode20, Phone30, Email100, Address500, ContactPerson200, Note1000. **enum `SupplierType.cs:3-10` = NhaCungCap1/NhaThauPhu2/ToDoi3/DonViDichVu4/ChuDauTu5 — KHÔNG có "Cả hai/Both"** (FE mirror `fe-admin/types/master.ts:11-16` identical). **GAP 30→entity: 6✅ · 7⚠️collision · 17❌ no-home** — Excel splits Address×2(invoice/office), Phone×2(company/contact), ContactPerson+role; ❌ Fax·Bank-acct×2·Legal-rep+role·GUQ+3-NAS-links·Status/blacklist·Referral·PMH-owner. ⚠️ **S55 seed `SeedRealMasterDataAsync` (`DbInitializer.cs:2768-2787`) crams NĐD/bank/status/category vào free-text `Note`** (:2771-73 TRUONGGIANG/TANPHU/TGN) — proof entity thiếu home. Seed **UNGATED** (called :128, idempotent-key=`Code` :2780) — KHÁC demo-master (`SeedDemoMasterDataAsync` GATED `DemoSeed:Disabled` :117, #75). POST any-auth (`SuppliersController.cs:37-42` S59). FE SHA-identical 2-app (`c1760788`, 253L, 9 fields). **Prod 20 NCC** (Type1×3+Type2×17; type3/4/5 wiped go-live S91 → "Cả hai" enum genuinely-needed). Precedent NAS-link = `PE.HoSoLink nvarchar(1000)` Mig52. Fork→em-main: core-widen ~15col+CaHai=6 vs satellite `SupplierDetail`. → _INDEX pending.
- **2026-06-29 S93 Harness-16 MFE ground-truth (WF1 `wf_4c63e1bd`):** ⭐ MFE denominator extraction (deterministic, status-field KHÔNG grep): marks Active(-High) (`ACTIVE-MARKS.md`) + AS-class + Active-Guards (`error-ledger.md` Verified✅) + recurring-gotcha (`gotchas.md`); **dedup-by-AS-cross-reference** (gotcha/guard mà AS-row trỏ `#N`/`AS-N` → gộp) = **29 item**. Per-role sub-coverage: denom = numbered anti-pattern/NEVER trong `agents/<role>.md`; numer = diary `agent-memory/<role>/MEMORY.md` (KHÔNG project/user — bẫy trùng-tên H15-v3) match exact-id OR ≥2 content-word sau stop-list (đánh bại leading-verb-9/9-giả). Codified `scripts/mfe-eval.ps1` + engine §H. (WF1 self-write reverted AS-10; em-main harvest single-writer.) → _INDEX.

- **PE FROZEN-Mig59 patchwork + go-live recon cluster (S87→S89, 8 entries → `archive/2026-06.md`):** AREA-2 budget-matrix (`SetPeCcmBudgetPeriodCommand` band-aid misplaced in `PeSuggestedPriceFeatures.cs:153-199`; PRO=drafter-flow vs CCM=role-flow authz asymmetry Section-B row3; "Dự án" col intentional FE-only "—") · AREA-3 finalize/price (AllowApproverFinalize AUTO Mig58 + finalizeByCcmDelegation OPT-IN Mig54 coexist, AUTO-first; ApplyApprovedPriceOnFinalize allow-list {Ncc,ProMin,ProMax,Ccm}; isSystem-branch DEAD via public ApproveV2Async) · AREA-4 UpdatePeDraft (**LATENT #73-class BUG:** HoSoLink absolute-set `PurchaseEvaluationFeatures.cs:280` but PeHeaderForm PUT OMITS → clears; 2 PUT call-sites mutually destructive; no HoSoLink-preserve test) · AREA-5 urgent/notify/TZ (SignalR push BYPASSES UtcDateTimeJsonConverter benign-Kind.Utc; urgent SET/UNSET symmetric fail-closed; possible double-notify-then-skip drafter=Cấp1) · AREA-6 FE-consumers (all 6 PE-comp+3 pages SHA-identical 2-app; residual single-winner `PeListPanel.tsx:168` blank ≥2 joint; #70 stale-echo PRO row3/8 no-peFetching) · S89 AllowApproverFinalize-NOTE feasibility (**GAP: BE field MỚI cần** — flag chỉ ở `currentLevelOptions` current-level; approvalFlow+list+dashboard DTO KHÔNG carry → expose `EndsBeforeCeo`+FinalizeStep/LevelName; FE note đầu `PeWorkflowPanel.tsx` flow `<ol>`) · 06-24 3-change (winner=SINGLE `SelectedSupplierId`, winnerQuoteTotal DERIVED 3-site; budget=0 blocked 2-layer; terminal=NEW per-Level bool mirror SkipToFinal) · 06-23 D2/D4/D5 UAT (urgent authz BẤT-ĐỐI-XỨNG gắn-role/gỡ-DeptMgr; PE-create dropdown `PeWorkspaceCreateView.tsx:94`; workflow-required 2-tầng).
- **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.
- **PE recon cluster (S69→S76, → _INDEX):** "Giá chào thầu" mục-c = `WinnerQuoteTotal`=SUM(Quote.ThanhTien WHERE supplier==Selected) DERIVED (3 nơi đồng-predicate) — PRO-Min/Max+CCM-proposed = Mig 54 NEW field. **Budget gate = PURE ROLE no-phase** (`canEditPro=Admin||Procurement`/`canEditCcm=Admin||CostControl` `PurchaseEvaluationFeatures.cs:800-801`; comment "bảng NS=tài-liệu-sống như Excel"); **submission-count-lock NEXISTS** (grep 0) → "khóa Initial sau lần-trình-đầu" = feature-MỚI. **Value-threshold HOOK B** = `ApproveV2Async` advance `:816-845` (reuse skipToFinal mechanic); **urgent flag** = AddColumn mirror `ItTicketPriority`. Badge ✎NS = +2 bool DTO via `GetUsersInRoleAsync` batch (no-N+1) both sites. PRO/CCM/CEO = `Procurement/CostControl/Director` (domain-shorthand NOT constants); V2 routing IGNORES roles (= specific ApproverUserId), 100% LINEAR no value/threshold config.
- **Office/HRM recon cluster (S65→S69, → _INDEX):** 21 `Off_*` keys, 10 office pages `{fe-admin,fe-user}/src/pages/office/` SHA256-mirror (except MyAttendance + AttendanceReport admin-only); golive-flip = remove `RevokeTemporarilyHiddenModulesAsync` call `DbInitializer.cs:2040`. Employee **master-detail EXISTS** (not list-only), Dept FLAT no-tree (pre-Mig51), 5 satellite 15-endpoint full. NamGroup **PURO = UI-skin** (ref demo.purocorp.vn) hardcoded-navTree, KpiCard-not-tab, shared PageHeader/WidgetCard. **gotcha #66:** `index.css h1-4{color:#0b1220}` OUTSIDE @layer → TW-v4 unlayered wins → heading-in-gradient MUST `text-white!`.
- **Governance/Harness recon cluster (S71, → _INDEX):** H8 all-inherit FULLY adopted both layers (12/12 frontmatter + hmw.js resolveModel); **run-trace "TRACKED" = 2-level** (`git check-ignore` eligible vs `git ls-files` committed — model works only post `git add`); G-015 containment shift (Harness-2 "mọi tracked=vi-phạm" → H10 "tracked NGOÀI run-folder+code-disjoint=vi-phạm"). **path-trap:** bare `runs/` from repo-root = 0 → actual `.claude/workflows/runs/` (22 tracked). detector refine(b) = `.claude/hooks`/`.claude/scripts` not-exist (now S75 has `scripts/governance-detectors.ps1`).
- **[→ git pre-S60]** S60 recon#2 V2-engine-map (ApproveV2Async:446-634 guard+UPSERT+advance; skipToFinal F2:561-602 precedent) · S60 PE Section-3 submit-guard ROLE-only. Full text git.
- **[→ archive/2026-06.md + git]** S52 P11-D/E/F 6-gap recon · S50 HrmConfigs add-kind 11-spot · S51 gotcha #57 EXT reachability (curated S59).
- **[→ archive/2026-05-q4.md + git d2f52ba]** S29-S37: clean-room > NamGroup-port verified 4× · Pattern 12-bis cross-module mirror · FK+freetext dual-write.

---

## 🔄 Curate trigger
- >~30KB → archive recent → L2 `archive/<period>.md` (byte-exact append) + `_INDEX.md` substring pointer. Stale >3mo → remove.
- **Last curate: 2026-06-20 S80 (em-main, archive-gate keep-floor-hit → manual)** (39.8→~14KB): moved 15 recon entries (lines 73-105 byte-exact via `sed`) → `archive/2026-06.md` (33→67KB) + `_INDEX.md` +15 table-row pointers (all verified count=1). KEPT foundation + 2 newest 06-20 + compressed recon-clusters + 3 git-stubs; UPDATED stale counts (40→57 mig, 84→88 tables, 130→354 test, 55→71 gotcha, 7→11 sub). gist NOT updated (em-main distill later).
- **Prev curate: 2026-06-18 S71** (29.8→23.2KB FIFO-trim 3 + gist gen:2). **Prev S70** (47.0→24.1KB dark-matter recovery + built _INDEX/gist). **Prev S40** (35.7→~20KB).