# 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`.
> **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
27 user-memory tại `C:\Users\pqhuy\.claude\projects\D--...\memory\MEMORY.md` (index). Key: per_chunk_commit · uat_skip_verify · audit_reuse_before_clone · designtime_runtime_db · per_nv_permission_scope · ef_migration_backfill_reorder · status_handoff_tiering (S40) · 7agent_split_upgrade (S39).

### 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 (S40 verified — re-grounded)

- **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/`). **40 mig**, last `20260528090839_AddAttendances`.
- **Counts S40:** 40 mig · **84 SQL tables** (77 DbSet + 7 Identity, count `.ToTable()` ModelSnapshot NOT DbSet) · ~211 endpoints · 65 FE pages (36 admin + 29 user `*Page.tsx`) · ~53 menu keys (BE `MenuKeys` const) · **130 test** (58 Domain + 72 Infra) · **55 gotchas** (format `### N.` highest #55) · 27 user-memory · 6 skills · 7 sub-agents
- **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)
- **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 S37 inline ApproveV2Async). WorkflowApps skeleton (Mig 39 S38 — ApproveV2 advance DEFER Phase 11).
  - Mig 25 IsUserSelectable · Mig 26 PE LevelOpinions UPSERT · Mig 29 Allow* per-NV (F1/F3 per Approver slot + F2 `Users.AllowDrafterSkipToFinal`) · Mig 30 F4 AllowApproverEditBudget · Mig 31 SkipToFinal→ApproverLevel
- **State machine PE 5 trạng thái:** Nháp / Đã gửi duyệt / **Trả lại (TraLai=98)** / Từ chối / 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 (FIFO — older → archive/git)

- **2026-06-01 (MONTHLY DRIFT AUDIT):** Ground truth code: **migrations=42** (last `AddLeaveBalances`, path `.../Persistence/Migrations/*.cs`) · **gotchas highest=#56** (file header NO self-count → drift chỉ ở file *reference* gotchas.md) · tests=154 (58 Domain+96 Infra, em main verified) · tables≈91 (45 config class nhưng Catalogs=4+ContractDetails=7+7 Identity untracked → khớp STATUS 91, KHÔNG cheap-exact). **Biggest drift: ef-core-migration SKILL** (frontmatter:3 "31 migration"→42, :19 history "31"→42 + thiếu rows Mig 27-42, :50 "59 bảng"→91, :80 "111 test"→154, :258/:267 "59 bảng"). dependency-audit SKILL:153 "49 bẫy"→56. CLAUDE.md:53 "40 mig→84 bảng"→42/91, :66 "130 test"→154, :133 "52 bẫy"→56. docs/CLAUDE.md:65 "52"→56. **schema-diagram GAP:** migration TABLE dừng Mig 16 (line 487); detail § cuối =§15=Mig 26 (§16=Related KHÔNG phải mig) → thiếu § cho **Mig 27-42** (16 mig). database-guide:4 "47 bảng/13 mig"→91/42. STATUS:97 backlog "Curate 4 agent MEMORY 35.7/35.3/30.9/28.4" STALE (đã curate S40 `78c9de3`, all ≤16KB) → REMOVE. NO-CHANGE: contract-workflow (historical counts OK), form-engine, iis-deploy (no count), HANDOFF (S43 current), PROJECT-MAP (no count). Tag `[drift-audit, monthly, 2026-06]`.
- **2026-05-30 (P11-A WorkflowApps wire pre-flight):** 4 module Leave/OT/Travel/Vehicle. Schema pin ĐÃ CÓ SẴN (Mig 39): `Office/{Module}.cs` đều có `ApprovalWorkflowId?`+`CurrentApprovalLevelOrder?`+`WorkflowAppStatus` (5-state khớp ProposalStatus). SKELETON tại `Application/Office/WorkflowAppsFeatures.cs:11-15` (chỉ Create+List, KHÔNG Approve/Reject/Return/GetById). **Proposal = mirror HOÀN HẢO** (cùng Office ns, Mig 38): `ProposalFeatures.cs:403-486` ApproveHandler = flatten `Steps.OrderBy(Order).SelectMany(Levels.OrderBy(Order))` global level index → `allLevels[CurrentApprovalLevelOrder-1]` → actor match `Level.ApproverUserId==uid||Admin` → UPSERT LevelOpinion → advance++/DaDuyet. ⚠️ `ApprovalWorkflow.cs:72` nói Level **KHÔNG OR-of-N** (1 ApproverUserId/Level) — KHÁC memory cũ "OR-of-N", verify lại. Gap: 4 bảng `{Module}LevelOpinion` mới (Mig 41+), 3 route/controller, 4 seed WF, FE Detail+Opinion (chỉ có WorkflowAppsListPage chung). ⚠️ enum `ApplicableType` THIẾU Travel (có Leave=5/OT=6/Vehicle=7/ItTicket=8); `ExtendApplicableTypeForWorkflowApps` mig empty Up/Down (enum-only). Tag `[pre-flight, p11-a, workflowapps]`.
- **2026-05-29 (S40 STATE GROUNDING):** 7 metric verify. ✅ Migrations=**40** (path `.../Persistence/Migrations/*.cs`, last `AddAttendances`). ✅ Gotchas=**55** (`### N.`). ✅ git clean. DbSet=77 nhưng **SQL tables=84** (em main verify `.ToTable()` ModelSnapshot — 77+7 Identity, "84 docs ĐÚNG", DbSet count sai −7). Endpoints=**211** (docs ~223). FE pages fe-admin **36**+fe-user 29=**65** (docs 53 under-count). Menu keys=**53** const (docs 85 over-count). 3 số tin cậy nhất = mig/gotcha/git. Lesson: tables phải count ToTable KHÔNG DbSet. Tag `[state-grounding, docs-drift, s40]`.
- **2026-05-29 (S39 BVAAU 7-agent extract):** Đọc 8 file BVAAU `.claude/agents/` ~22K. Split 4→7 trục research(2)/implement(2)/quality(3). Boundary: repo interface=domain, EF config=infra, test=test-specialist. Tool: cả 7 agent 5 RAG MCP (+search_code BM25 +store_memory +list_projects). BVAAU Phase 0 codebase RỖNG → aspirational template chưa battle-test; SOLUTION_ERP giữ 6 skill + backend/frontend split (thay domain/infra cho 2-FE fit). VIPIX guide claim KHÔNG verify được (file miss). Tag `[cross-project, bvaau, port]`.
- **Archived S29-S37 → `archive/2026-05-q4.md` + git d2f52ba (S40 curate):** S36 G-O2 Phòng họp clean-room + FullCalendar v6 MIT eval · S36 startup MEMORY-size audit · S35 G-H2 HRM clean-room verdict · S33 G-H1 NamGroup TblNhanVien 10-bảng (105 cols main) · S33 startup RAG verify · S32 Plan G 11-module backlog · S29 Plan CA+B pre-flight (3 patterns: 9-menu terrain, V1+V2 coexist, reference-template-paths cite line-range ROI). KEY absorbed: **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`. Stale >3mo → remove.
- **Last curate: 2026-05-29 S40 em main proxy** (35.7→~20KB): archived 7 FIFO S29-S36 → q4 + git d2f52ba, refreshed stale essentials S25→S40 numbers, trimmed memory-list. Prev: S34 q3 · S32 q2 · S22 q1.