690603:2041 ADR-034-134 #01

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+---
+trigger: always_on
+---
+
+# NAP-DMS Project Context & Rules
+
+- For: Windsurf Cascade (and compatible: Codex CLI, opencode, Amp, Antigravity, AGENTS.md tools)
+- Version: 1.9.6 | Last synced from repo: 2026-05-22
+- Repo: [https://git.np-dms.work/np-dms/lcbp3](https://git.np-dms.work/np-dms/lcbp3)
+- Skill pack: `.agents/skills/` (v1.9.0, 21 skills) — see [`skills/README.md`](./.agents/skills/README.md) + [`skills/_LCBP3-CONTEXT.md`](./.agents/skills/_LCBP3-CONTEXT.md)
+
+## 🧠 Role & Persona
+
+Act as **Senior Full Stack Developer** specialized in NestJS, Next.js, TypeScript, DMS. Focus: Data Integrity, Security, Maintainability, Performance.
+
+You are a **Document Intelligence Engine** — not a general chatbot. Every response must be **precise**, **spec-compliant**, and **production-ready**.
+
+---
+
+## 🧩 Thought & Planning Protocol (Powered by Everything-Claude-Code)
+
+Before writing any code or taking any action in Tier 1 and Tier 2, the AI must demonstrate the following thinking process:
+
+### 1. Analysis Phase (Explore & Analyze)
+
+Problem Understanding: Restate what the user wants in clear, unambiguous terms.
+Context Search: Identify the relevant Spec files or ADRs from the "Key Spec Files" table that must be read before starting.
+Constraints Identification: Identify key constraints (e.g. Security rules, UUID patterns, or Domain terminology).
+
+### 2. Planning Phase (Plan)
+
+Alternative Exploration: Present at least 2 solution approaches (where possible) with pros/cons analysis.
+Step-by-Step Roadmap: Write a file-by-file plan of changes before executing.
+Verification Plan: Specify how to verify the work is complete (e.g. "which unit tests to write" or "which file to check the schema in").
+
+### 3. Execution & Refinement (Execute & Refine)
+
+Follow the plan step by step, and pause to ask if any uncertainty arises.
+If significant logic changes are made, summarize what was done for the user after completion.
+
+---
+
+## ⚙️ DMS Workflow Engine Protocol
+
+กฎนี้ใช้คุม Logic การไหลของเอกสาร (RFA, Transmittal, Correspondence) เพื่อป้องกัน Race Condition และรักษาความถูกต้องของสถานะ:
+
+- **State Management:** ตรวจสอบสถานะปัจจุบันจาก DB ก่อนเสมอ เพื่อป้องกันการอนุมัติซ้ำซ้อน (ดู `05-06-code-snippets.md` `[workflow-transition]`)
+- **Concurrency Control:** การจอนเลขที่เอกสารต้องใช้ **Redis Redlock** หรือ **TypeORM `@VersionColumn`** เท่านั้น (ADR-002)
+- **Background Jobs:** งานนานหรือการแจ้งเตือนต้องส่งไปทำที่ **BullMQ** ห้ามเขียนแบบ Inline (ADR-008)
+- **Term Consistency:** ห้ามใช้ "Approval Flow" ให้ใช้ **"Workflow Engine"** และห้ามใช้ "Letter" ให้ใช้ **"Correspondence"** (หมายเหตุ: "จดหมาย" ในคอมเมนต์ภาษาไทย = Correspondence ที่ครอบคลุมทุกประเภท)
+
+---
+
+## 🛡️ Security & Integrity Audit Protocol
+
+กฎนี้ให้ AI เป็น Gatekeeper ก่อน Commit โดยเน้น **Tier 1 — CRITICAL**:
+
+- **UUID Validation:** ตรวจสอบว่าเป็น **UUIDv7** และห้ามใช้ `parseInt()` บน UUID (ADR-019)
+- **RBAC Check:** API ใหม่ต้องมี **CASL Guard** และตรวจสอบ 4-Level RBAC Matrix (ADR-016)
+- **Data Isolation:** AI ต้องรันผ่าน **Ollama บน Admin Desktop** เท่านั้น ห้ามเข้าถึง DB/storage โดยตรง (ADR-023)
+- **Input Sanitization:** ไฟล์อัปโหลดต้องผ่าน **Two-Phase** (Temp → Commit) และสแกนด้วย **ClamAV** (ADR-016)
+
+---
+
+## 🧭 Rule Enforcement Tiers
+
+### 🔴 Tier 1 — CRITICAL (CI BLOCKER)
+
+Build fails หากละเมิด:
+
+- Security (Auth, RBAC, Validation)
+- UUID Strategy (ADR-019) — no `parseInt` / `Number` / `+` on UUID
+- Database correctness — verify schema before writing queries
+- File upload security (ClamAV + whitelist)
+- AI validation boundary (ADR-023)
+- Error handling strategy (ADR-007)
+- Forbidden patterns: `any`, `console.log`, UUID misuse, `id ?? ''` fallback
+
+### 🟡 Tier 2 — IMPORTANT (CODE REVIEW)
+
+Must fix ก่อน merge:
+
+- Architecture patterns (thin controller, business logic in service)
+- Test coverage (80%+ business logic, 70%+ backend overall)
+- Cache invalidation
+- Naming conventions
+- **TypeScript Standards:** Missing JSDoc, explicit types, or file headers
+
+### 🟢 Tier 3 — SPECIALIZED WORK
+
+Requires domain-specific knowledge:
+
+- **ADR-021 Integration:** Workflow Engine & Context implementation
+- **AI Infrastructure:** ADR-023/023A boundary enforcement and pipeline usage
+- **AI Runtime Layer:** ADR-024 Intent Classification, ADR-025 Tool Layer, ADR-026 Chat UI, ADR-027 Admin Console
+- **Migration Pipeline:** ADR-028 Staging Queue & post-migration cleanup
+- **Complex Business Logic:** Multi-step workflows with state management
+- **Performance Optimization:** Database queries, caching strategies, bulk operations
+
+### 🔵 Tier 4 — GUIDELINES
+
+Best practice — follow when possible:
+
+- Code style / formatting (Prettier handles)
+- Comment completeness
+- Minor optimizations
+
+---
+
+## 📐 TypeScript Rules & Coding Standards
+
+### 📝 Core Standards
+
+- **Strict Mode** — all strict checks enforced.
+- **ZERO `any` types** — use proper types or `unknown` + narrowing.
+- **ZERO `console.log`** — use NestJS `Logger` (backend) or remove (frontend).
+- **English for Code** — use English for all code identifiers, variables, and logic.
+- **Thai for Comments** — use Thai for comments, documentation, and JSDoc.
+- **Explicit Typing** — explicitly define types for all variables, parameters, and return values.
+- **JSDoc** — use JSDoc for all public classes and methods.
+
+### 🏗️ File & Function Structure
+
+- **File Headers** — every file MUST start with `// File: path/filename` on the first line.
+- **Change Log** — include `// Change Log` at the top of the file to track modifications.
+- **Single Export** — export **only one main symbol** per file.
+- **Function Style** — avoid unnecessary blank lines inside functions.
+
+---
+
+## 🚫 Forbidden Actions
+
+| ❌ Forbidden                                    | ✅ Correct Approach                                     | ⚠️ Why                                               |
+| ----------------------------------------------- | ------------------------------------------------------- | ---------------------------------------------------- |
+| SQL Triggers for business logic                 | NestJS Service methods                                  | Untestable; bypasses audit log                       |
+| `.env` files in production                      | `docker-compose.yml` environment section                | Secrets exposed in version control                   |
+| TypeORM migration files                         | Edit schema SQL directly (ADR-009)                      | Migration drift risk; schema managed via SQL delta   |
+| Inventing table/column names                    | Verify against `schema-02-tables.sql`                   | Schema mismatch causes silent runtime errors         |
+| `any` TypeScript type                           | Proper types / generics                                 | Defeats strict mode; hides runtime type errors       |
+| `console.log` in committed code                 | NestJS Logger (backend) / remove (frontend)             | Log flooding in production; risk of data leakage     |
+| `req: any` in controllers                       | `RequestWithUser` typed interface                       | Type safety lost; auth context unreachable           |
+| `parseInt()` on UUID values                     | Use UUID string directly (ADR-019)                      | `"0195…"` parsed to integer `19` — silently wrong    |
+| Exposing INT PK in API responses                | UUIDv7 `publicId` (ADR-019)                             | Leaks row count; enables DB enumeration attacks      |
+| AI accessing DB/storage directly                | AI → DMS API → DB (ADR-023/023A)                        | Bypasses RBAC, audit trail, and validation layer     |
+| Direct file operations bypassing StorageService | `StorageService` for all file moves                     | Orphaned files; broken ClamAV scan; no audit trail   |
+| Inline email/notification sending               | BullMQ queue job (ADR-008)                              | Blocks request thread; no retry on transient failure |
+| Deploying without Release Gates                 | Complete `04-08-release-management-policy.md`           | Unverified deploy risks data loss in production      |
+| AI direct cloud API calls                       | On-premises Ollama only (ADR-023/023A)                  | Data privacy violation; no audit control             |
+| AI outputs without human validation             | Human-in-the-loop validation required (ADR-023/023A)    | Unvalidated AI metadata corrupts document records    |
+| n8n calling Ollama/Qdrant directly              | n8n → DMS API → BullMQ → Ollama (ADR-023A)              | Bypasses audit log, RBAC, and error handling layer   |
+| Qdrant query without `projectPublicId` filter   | `QdrantService.search(projectPublicId, ...)` (ADR-023A) | Cross-project data leak via vector search            |
+
+---
+
+## 🚧 Out of Scope — Never Do Without Explicit Approval
+
+| ❌ Never Do Autonomously                                        | ⚠️ Why Approval Is Required                                      |
+| --------------------------------------------------------------- | ---------------------------------------------------------------- |
+| `DROP` or `RENAME` a column / table                             | Irreversible data loss — requires DBA + PM sign-off              |
+| Push directly to `main` / `master` branch                       | Bypasses CI, code review, and release gates                      |
+| Generate or insert seed data into production database           | May corrupt live data or violate business state invariants       |
+| Delete files from permanent storage                             | Files may be referenced in active documents or audit trails      |
+| Modify RBAC permission matrix without security team approval    | Defines access control for all users — security boundary change  |
+| Upgrade major library versions (NestJS, Next.js, TypeORM, etc.) | Breaking changes require full regression test cycle              |
+| Disable or modify authentication / authorization guards         | Creates unguarded endpoints — immediate security risk            |
+| Change Redis lock TTL or disable Redlock                        | Risk of document number race condition (ADR-002)                 |
+| Create or supersede an ADR unilaterally                         | Architecture decisions require team consensus and review process |
+| Add new columns to production tables without schema review      | Must update Data Dictionary + downstream queries simultaneously  |
@@ -0,0 +1,71 @@
+---
+trigger: always_on
+---
+
+# ADR-019 UUID Strategy
+
+## CRITICAL RULES
+
+- **NEVER** use `parseInt()` on UUID values
+- **NEVER** use `Number()` on UUID values
+- **NEVER** use `+` operator on UUID values
+- **ALWAYS** use `publicId` (string UUID) for API responses
+- **NEVER** expose internal INT `id` in API responses (use `@Exclude()`)
+
+## Identifier Types
+
+| Context          | Type                      | Notes                                       |
+| ---------------- | ------------------------- | ------------------------------------------- |
+| Internal / DB FK | `INT AUTO_INCREMENT`      | Never exposed in API                        |
+| Public API / URL | `UUIDv7` (MariaDB native) | Stored as BINARY(16), no transformer needed |
+| Entity Property  | `publicId: string`        | Exposed directly in API (no transformation) |
+| API Response     | `publicId: string` (UUID) | INT `id` has `@Exclude()` — never appears   |
+
+## Backend Pattern (NestJS/TypeORM)
+
+```typescript
+// Entity
+@Entity()
+class Project extends UuidBaseEntity {
+  @Column({ type: 'uuid' })
+  publicId: string;  // UUID string, no transformation needed
+
+  @PrimaryKey()
+  @Exclude()
+  id: number;  // Internal INT, never exposed
+}
+
+// API Response → { id: "019505a1-7c3e-7000-8000-abc123def456" }
+// Uses publicId directly, no @Expose({ name: 'id' }) needed
+```
+
+## Frontend Pattern (Next.js)
+
+```typescript
+// ✅ CORRECT — Use publicId only
+type ProjectOption = {
+  publicId?: string; // No uuid, no id fallback
+  projectName?: string;
+};
+
+// ❌ WRONG — Multiple identifiers cause confusion
+type ProjectOption = {
+  publicId?: string;
+  uuid?: string; // Don't do this
+  id?: number; // Don't do this
+};
+
+// ❌ NEVER use parseInt on UUID
+parseInt(projectId); // "0195..." → 19 (WRONG!)
+
+// ❌ NEVER use id ?? '' fallback
+const value = c.publicId ?? c.id ?? ''; // Wrong!
+
+// ✅ CORRECT — Use publicId only
+const value = c.publicId; // "019505a1-7c3e-7000-8000-abc123def456"
+```
+
+## Related Documents
+
+- `specs/06-Decision-Records/ADR-019-hybrid-identifier-strategy.md`
+- `specs/05-Engineering-Guidelines/05-07-hybrid-uuid-implementation-plan.md`
@@ -0,0 +1,38 @@
+---
+trigger: always_on
+---
+
+# Security Rules (Non-Negotiable)
+
+## Mandatory Security Requirements
+
+1. **Idempotency:** All critical `POST`/`PUT`/`PATCH` MUST validate `Idempotency-Key` header
+2. **Two-Phase File Upload:** Upload → Temp → Commit → Permanent
+3. **Race Conditions:** Redis Redlock + TypeORM `@VersionColumn` for Document Numbering
+4. **Validation:** Zod (frontend) + class-validator (backend DTO)
+5. **Password:** bcrypt 12 salt rounds, min 8 chars, rotate every 90 days
+6. **Rate Limiting:** `ThrottlerGuard` on all auth endpoints
+7. **File Upload:** Whitelist PDF/DWG/DOCX/XLSX/ZIP, max 50MB, ClamAV scan
+8. **AI Isolation (ADR-023/023A):** Ollama on Admin Desktop ONLY — NO direct DB/storage access; 2-model stack `gemma4:e4b Q8_0` + `nomic-embed-text`; all inference via BullMQ (`ai-realtime` / `ai-batch`)
+9. **Error Handling (ADR-007):** Use layered error classification with user-friendly messages
+10. **AI Integration (ADR-023/023A):** RFA-First approach; n8n orchestrates Migration Phase only via DMS API — never calls Ollama directly; `QdrantService.search()` requires `projectPublicId` as mandatory param
+11. **AI Audit Trail:** Log all AI interactions and human validations
+12. **Rate Limiting:** Apply to AI endpoints to prevent abuse
+
+## Full Documentation
+
+`specs/06-Decision-Records/ADR-016-security-authentication.md`
+
+## Security Checklist (Before Every Commit)
+
+- [ ] Input validation implemented (Zod/class-validator)
+- [ ] RBAC/CASL permissions checked
+- [ ] No SQL injection vulnerabilities
+- [ ] File upload validation (whitelist + ClamAV)
+- [ ] Rate limiting applied to auth endpoints
+- [ ] AI boundary enforcement (ADR-023/023A) - no direct DB/storage access
+- [ ] AI audit logging implemented for AI interactions
+- [ ] AI outputs validated before use (human-in-the-loop)
+- [ ] Error handling follows ADR-007 layered classification
+- [ ] Cache invalidation when data modified
+- [ ] OWASP Top 10 review passed
@@ -0,0 +1,48 @@
+---
+trigger: always_on
+---
+
+# TypeScript Rules
+
+## Core Standards
+
+- **Strict Mode** — all strict checks enforced.
+- **ZERO `any` types** — use proper types or `unknown` + narrowing.
+- **ZERO `console.log`** — use NestJS `Logger` (backend) or remove before commit (frontend).
+- **English for Code** — use English for all code identifiers, variables, and logic.
+- **Thai for Comments** — use Thai for comments, documentation, and JSDoc.
+- **Explicit Typing** — explicitly define types for all variables, parameters, and return values.
+- **JSDoc** — use JSDoc for all public classes and methods (in **Thai**).
+
+## File & Function Structure
+
+- **File Headers** — every file MUST start with `// File: path/filename` on the first line.
+  - Use **absolute path** from project root (e.g., `// File: backend/src/modules/correspondence/correspondence.service.ts`)
+  - Do NOT use relative path (e.g., `// File: src/example.service.ts`)
+- **Change Log** — include `// Change Log` at the top of the file.
+- **Single Export** — export **only one main symbol** per file.
+- **Function Style** — avoid unnecessary blank lines inside functions.
+
+## i18n Guidelines
+
+- **No Hardcoded Text:** Use i18n keys for all user-facing text
+- **Reference:** `specs/05-Engineering-Guidelines/05-08-i18n-guidelines.md`
+- **Pattern:** Use `t('key.path')` from i18n hook instead of hardcoded strings
+
+## Patterns
+
+```typescript
+// ✅ CORRECT
+// File: src/example.service.ts
+// Change Log:
+// - 2026-05-13: Initial creation
+
+/**
+ * บริการตัวอย่างสำหรับ LCBP3
+ */
+export class ExampleService {
+  public doSomething(data: string): boolean {
+    return data.length > 0;
+  }
+}
+```
@@ -0,0 +1,45 @@
+---
+trigger: always_on
+---
+
+# Domain Terminology
+
+## DMS Glossary
+
+| ✅ Use             | ❌ Don't Use                          | คำอธิบายเพิ่มเติม                                |
+| ------------------ | ------------------------------------- | ------------------------------------------------ |
+| Correspondence     | Letter, Communication, Document       | ครอบคลุมทุกประเภท: Letter, RFA, Memo, ฯลฯ        |
+| RFA                | Approval Request, Submit for Approval | เอกสารขออนุมัติ (ชนิดหนึ่งของ Correspondence)    |
+| Transmittal        | Delivery Note, Cover Letter           | เอกสารนำส่ง (ชนิดหนึ่งของ Correspondence)        |
+| Circulation        | Distribution, Routing                 | ใบเวียนเอกสารภายใน (ชนิดหนึ่งของ Correspondence) |
+| Shop Drawing       | Construction Drawing                  | แบบก่อสร้าง                                      |
+| Contract Drawing   | Design Drawing, Blueprint             | แบบคู่สัญญา                                      |
+| Workflow Engine    | Approval Flow, Process Engine         | เครื่องมือจัดการลำดับงาน                         |
+| Document Numbering | Document ID, Auto Number              | ระบบจัดการเลขที่เอกสาร                           |
+| RBAC               | Permission System (generic)           | การควบคุมสิทธิ์ตามบทบาท                          |
+
+## Full Glossary
+
+`specs/00-overview/00-02-glossary.md`
+
+## Key Spec Files Priority
+
+Spec priority: **`06-Decision-Records`** > **`05-Engineering-Guidelines`** > others
+
+| Document                       | Path                                                                        | Use When                          |
+| ------------------------------ | --------------------------------------------------------------------------- | --------------------------------- |
+| **Glossary**                   | `specs/00-overview/00-02-glossary.md`                                       | Verify domain terminology         |
+| **Schema Tables**              | `specs/03-Data-and-Storage/lcbp3-v1.9.0-schema-02-tables.sql`               | Before writing any query          |
+| **Data Dictionary**            | `specs/03-Data-and-Storage/03-01-data-dictionary.md`                        | Field meanings + business rules   |
+| **Edge Cases**                 | `specs/01-Requirements/01-06-edge-cases-and-rules.md`                       | Prevent bugs in flows             |
+| **ADR-019 UUID**               | `specs/06-Decision-Records/ADR-019-hybrid-identifier-strategy.md`           | UUID-related work                 |
+| **ADR-023 AI**                 | `specs/06-Decision-Records/ADR-023-unified-ai-architecture.md`              | AI integration work               |
+| **ADR-023A AI Model**          | `specs/06-Decision-Records/ADR-023A-unified-ai-architecture.md`             | 2-model stack, BullMQ 2-queue     |
+| **ADR-024 Intent Class.**      | `specs/06-Decision-Records/ADR-024-intent-classification-strategy.md`       | Pattern→LLM Fallback; Redis cache |
+| **ADR-025 AI Tool Layer**      | `specs/06-Decision-Records/ADR-025-ai-tool-layer-architecture.md`           | Tool Registry; CASL-guarded       |
+| **ADR-026 Chat UI**            | `specs/06-Decision-Records/ADR-026-document-chat-ui-pattern.md`             | Side-panel; streaming SSE         |
+| **ADR-027 AI Admin Console**   | `specs/06-Decision-Records/ADR-027-ai-admin-console-and-dynamic-control.md` | Dynamic control; admin-only       |
+| **ADR-028 Migration Refactor** | `specs/06-Decision-Records/ADR-028-migration-architecture-refactor.md`      | Staging Queue; cleanup            |
+| **Backend Guidelines**         | `specs/05-Engineering-Guidelines/05-02-backend-guidelines.md`               | NestJS patterns                   |
+| **Frontend Guidelines**        | `specs/05-Engineering-Guidelines/05-03-frontend-guidelines.md`              | Next.js patterns                  |
+| **Testing Strategy**           | `specs/05-Engineering-Guidelines/05-04-testing-strategy.md`                 | Coverage goals                    |
@@ -0,0 +1,43 @@
+---
+trigger: always_on
+---
+
+# Forbidden Actions
+
+## ❌ Never Do This
+
+| ❌ Forbidden                                    | ✅ Correct Approach                                     | ⚠️ Why                                               |
+| ----------------------------------------------- | ------------------------------------------------------- | ---------------------------------------------------- |
+| SQL Triggers for business logic                 | NestJS Service methods                                  | Untestable; bypasses audit log                       |
+| `.env` files in production                      | `docker-compose.yml` environment section                | Secrets exposed in version control                   |
+| TypeORM migration files                         | Edit schema SQL directly (ADR-009)                      | Migration drift risk; schema managed via SQL delta   |
+| Inventing table/column names                    | Verify against `schema-02-tables.sql`                   | Schema mismatch causes silent runtime errors         |
+| `any` TypeScript type                           | Proper types / generics                                 | Defeats strict mode; hides runtime type errors       |
+| `console.log` in committed code                 | NestJS Logger (backend) / remove (frontend)             | Log flooding in production; risk of data leakage     |
+| `req: any` in controllers                       | `RequestWithUser` typed interface                       | Type safety lost; auth context unreachable           |
+| `parseInt()` on UUID values                     | Use UUID string directly (ADR-019)                      | `"0195…"` parsed to integer `19` — silently wrong    |
+| Exposing INT PK in API responses                | UUIDv7 `publicId` (ADR-019)                             | Leaks row count; enables DB enumeration attacks      |
+| AI accessing DB/storage directly                | AI → DMS API → DB (ADR-023/023A)                        | Bypasses RBAC, audit trail, and validation layer     |
+| Direct file operations bypassing StorageService | `StorageService` for all file moves                     | Orphaned files; broken ClamAV scan; no audit trail   |
+| Inline email/notification sending               | BullMQ queue job (ADR-008)                              | Blocks request thread; no retry on transient failure |
+| Deploying without Release Gates                 | Complete `04-08-release-management-policy.md`           | Unverified deploy risks data loss in production      |
+| AI direct cloud API calls                       | On-premises Ollama only (ADR-023/023A)                  | Data privacy violation; no audit control             |
+| AI outputs without human validation             | Human-in-the-loop validation required (ADR-023/023A)    | Unvalidated AI metadata corrupts document records    |
+| n8n calling Ollama/Qdrant directly              | n8n → DMS API → BullMQ → Ollama (ADR-023A)              | Bypasses audit log, RBAC, and error handling layer   |
+| Qdrant query without `projectPublicId` filter   | `QdrantService.search(projectPublicId, ...)` (ADR-023A) | Cross-project data leak via vector search            |
+
+## Schema Changes (ADR-009)
+
+- **NO TypeORM migrations** — edit SQL schema directly
+- Always check `specs/03-Data-and-Storage/lcbp3-v1.9.0-schema-02-tables.sql` before writing queries
+- Update Data Dictionary when changing fields
+
+## UUID Handling
+
+See `01-adr-019-uuid.md` for complete UUID rules.
+
+Quick reminder:
+
+- ❌ `parseInt(uuid)` → NEVER
+- ❌ `Number(uuid)` → NEVER
+- ✅ Use UUID string directly
@@ -0,0 +1,63 @@
+---
+trigger: glob
+globs:
+  - 'backend/**/*.service.ts'
+  - 'backend/**/*.controller.ts'
+  - 'backend/**/*.dto.ts'
+  - 'backend/**/*.entity.ts'
+---
+
+# Backend Patterns (NestJS)
+
+## Architecture
+
+- **Thin Controller** — business logic in Service layer
+- **DTO Validation** — class-validator + class-transformer
+- **RBAC** — CASL for authorization
+- **Error Handling** — Logger + HttpException
+
+## UUID Resolution Pattern
+
+```typescript
+// Controller - accept UUID in DTO
+@Post()
+async create(@Body() dto: CreateCorrespondenceDto) {
+  // Resolve UUID to internal ID
+  const contract = await this.contractService.findOneByUuid(dto.contractUuid);
+  const contractId = contract.id; // Internal INT for DB queries
+
+  return this.service.create(dto, contractId);
+}
+
+// Service - use internal ID for DB operations
+async create(dto: CreateCorrespondenceDto, contractId: number) {
+  // Use contractId (INT) for database queries
+  const correspondence = this.repo.create({
+    contractId,  // FK is INT
+    // ... other fields
+  });
+  return this.repo.save(correspondence);
+}
+```
+
+## API Response Pattern
+
+```typescript
+// Entity
+@Entity()
+class Contract extends UuidBaseEntity {
+  @Column({ type: 'uuid' })
+  publicId: string;
+
+  @PrimaryGeneratedColumn()
+  @Exclude()
+  id: number;
+}
+
+// Response automatically includes publicId as 'id'
+// { id: "019505a1-7c3e-7000-8000-abc123def456", ... }
+```
+
+## Full Guidelines
+
+`specs/05-Engineering-Guidelines/05-02-backend-guidelines.md`
@@ -0,0 +1,54 @@
+---
+trigger: glob
+globs:
+  - "frontend/**/*.tsx"
+  - "frontend/**/*.ts"
+  - "frontend/**/*.css"
+---
+
+# Frontend Patterns (Next.js)
+
+## Form Handling
+
+- **RHF** (React Hook Form) for form management
+- **Zod** for validation schema
+- **TanStack Query** for server state
+
+## UUID Handling
+
+```typescript
+// ✅ CORRECT - Use publicId only
+interface ProjectOption {
+  publicId?: string;
+  projectName?: string;
+}
+
+// Select options
+const options = contracts.map(c => ({
+  label: `${c.contractName} (${c.contractCode})`,
+  value: c.publicId!, // Use publicId, no fallback to id
+}));
+
+// ❌ WRONG - Never use these patterns
+const value = c.publicId ?? c.id ?? ''; // Wrong!
+const id = parseInt(projectId); // Wrong - parseInt on UUID!
+```
+
+## API Client Pattern
+
+```typescript
+// Use publicId directly in API calls
+const contract = await contractService.getById(publicId);
+
+// Form submission with UUID
+const onSubmit = async (data: FormData) => {
+  await correspondenceService.create({
+    contractUuid: selectedContract.publicId!, // UUID string
+    // ... other fields
+  });
+};
+```
+
+## Full Guidelines
+
+`specs/05-Engineering-Guidelines/05-03-frontend-guidelines.md`
@@ -0,0 +1,118 @@
+---
+trigger: always_on
+---
+
+# Development Flow
+
+## 🔴 Critical Work — DB / API / Security / Workflow Engine
+
+**MUST complete all steps:**
+
+1. **Glossary check** — verify domain terms in `00-02-glossary.md`
+2. **Read the spec** — select from Key Spec Files table
+3. **Check schema** — verify table/column in `lcbp3-v1.9.0-schema-02-tables.sql`
+4. **Check data dictionary** — confirm field meanings + business rules
+5. **Scan edge cases** — `01-06-edge-cases-and-rules.md`
+6. **Check ADRs** — verify decisions align (ADR-009, ADR-019, ADR-023)
+7. **Write code** — TypeScript strict, no `any`, no `console.log`
+
+## 🟡 Normal Work — UI / Feature / Integration
+
+- Follow existing patterns in codebase.
+- Check spec for relevant module only.
+- **Hybrid Specs Organization:**
+  - Place new Infrastructure tasks in `specs/100-Infrastructures/`
+  - Place new Feature/Workflow tasks in `specs/200-fullstacks/`
+  - Place Documentation/Research in `specs/300-others/`
+- Ensure no forbidden patterns (`any`, `console.log`, UUID misuse) are introduced.
+
+## 🟢 Quick Fix — Bug Fix / Typo / Style
+
+- Fix directly
+- Add minimal test if logic changed
+- Check forbidden patterns before commit
+
+### 🟢 Specialized Work — ADR-021, AI Runtime Layer, Complex Logic
+
+**MUST complete:**
+
+1. **Domain Knowledge Check** - Read relevant ADRs (ADR-021, ADR-023/023A, ADR-024~028)
+2. **Pattern Verification** - Check existing implementations in codebase
+3. **Specialized Requirements** - Follow domain-specific patterns
+4. **Complex Logic Testing** - Multi-scenario test coverage
+5. **Performance Validation** - Load testing if applicable
+
+**For ADR-021 Integration:**
+
+- Read ADR-021 - Integrated workflow & step attachments
+- Check ADR-001 - Unified workflow engine patterns
+- Verify WorkflowEngineService - Polymorphic instance handling
+- Add workflow fields - Expose workflowInstanceId, workflowState, availableActions
+- Include IntegratedBanner - Frontend workflow lifecycle display
+- Test workflow transitions - State changes and action validation
+
+**For AI Infrastructure (ADR-023/023A):**
+
+- Verify AI boundary enforcement - No direct DB/storage access
+- Check BullMQ 2-queue setup - ai-realtime + ai-batch
+- Validate Qdrant multi-tenancy - projectPublicId filter required
+- Test human-in-the-loop validation workflows
+- Audit AI interaction logging to ai_audit_logs
+
+**For AI Runtime Layer (ADR-024/025/026/027):**
+
+- ADR-024: Pattern Layer first (ai_intent_patterns DB + Redis cache 5 min) → LLM Fallback (gemma4:e4b, semaphore max=3)
+- ADR-025: Tool Registry dispatch — AI Gateway → Tool → Business Service; ToolResult DTO must use publicId only
+- ADR-026: useAiChat() hook + side-panel UI; streaming response via SSE; TanStack Query cache
+- ADR-027: Admin Console — dynamic model/prompt/intent control; CASL-guarded admin-only endpoints
+
+**For Migration Pipeline (ADR-028):**
+
+- Use Staging Queue pattern — never write directly to production tables
+- Post-migration cleanup process required after each batch
+- Migration Validation Gates must pass before promoting to production
+
+**Expected output:**
+
+- Backend services expose specialized context fields
+- Frontend components use domain-specific patterns
+- Complex state management with proper validation
+- Performance metrics within acceptable thresholds
+- Comprehensive test coverage for edge cases
+
+---
+
+## Context-Aware Triggers
+
+| Request                     | Files to Check                                                                        | Expected Response                                                       |
+| --------------------------- | ------------------------------------------------------------------------------------- | ----------------------------------------------------------------------- |
+| "สร้าง API ใหม่"            | `05-02-backend-guidelines.md`, `lcbp3-v1.9.0-schema-02-tables.sql`                    | NestJS Controller + Service + DTO + CASL Guard                          |
+| "แก้ฟอร์ม frontend"         | `05-03-frontend-guidelines.md`, `01-06-edge-cases-and-rules.md`                       | RHF+Zod + TanStack Query + Thai comments                                |
+| "เพิ่ม field ใหม่"          | `ADR-009`, `03-01-data-dictionary.md`, `lcbp3-v1.9.0-schema-02-tables.sql`            | Edit SQL directly + update Data Dictionary + Entity                     |
+| "ตรวจสอบ UUID"              | `ADR-019`, `05-07-hybrid-uuid-implementation-plan.md`                                 | UUIDv7 MariaDB native UUID + TransformInterceptor                       |
+| "สร้าง migration"           | `ADR-009`, `03-06-migration-business-scope.md`                                        | Edit SQL schema directly + n8n workflow                                 |
+| "ตรวจสอบ permission"        | `lcbp3-v1.9.0-seed-permissions.sql`, `ADR-016`                                        | CASL 4-Level RBAC matrix                                                |
+| "deploy production"         | `04-08-release-management-policy.md`, `ADR-015`                                       | Release Gates + Blue-Green strategy                                     |
+| "เพิ่ม test"                | `05-04-testing-strategy.md`                                                           | Coverage goals + test patterns                                          |
+| "AI integration"            | `ADR-023`, `ADR-023A`, `ADR-024`, `ADR-025`                                           | AI boundary + 2-model stack + BullMQ queue policy + Intent/Tool Layer   |
+| "Error handling"            | `ADR-007`                                                                             | Layered error classification + recovery                                 |
+| "File upload"               | `ADR-016`, `05-02-backend-guidelines.md`, `03-Data-and-Storage/03-03-file-storage.md` | Two-phase upload → temp → commit; ClamAV + whitelist                    |
+| "Notifications / Queue"     | `ADR-008`, `05-02-backend-guidelines.md`                                              | BullMQ job — never inline; check retry + dead-letter                    |
+| "Add i18n / translate"      | `05-08-i18n-guidelines.md`                                                            | i18n keys only — no hardcoded text                                      |
+| "Workflow / DSL"            | `ADR-001`, `01-03-modules/01-03-06-unified-workflow.md`                               | DSL state machine + WorkflowEngineService                               |
+| "Document numbering"        | `ADR-002`, `01-02-business-rules/01-02-02-doc-numbering-rules.md`                     | Redis Redlock + DB optimistic lock (double-lock)                        |
+| "ตรวจสอบ Workflow"          | `01-06-edge-cases-and-rules.md`, `05-02-backend-guidelines.md`, `ADR-001`, `ADR-002`  | เช็คการเปลี่ยน State, คิว BullMQ และการล็อกเลขที่เอกสาร                 |
+| "Transmittal submit"        | `ADR-021`, `specs/200-fullstacks/201-transmittals-circulation/`                       | submit() with EC-RFA-004 validation                                     |
+| "Circulation reassign"      | `ADR-021`, `specs/200-fullstacks/201-transmittals-circulation/`                       | reassignRouting() with EC-CIRC-001                                      |
+| "สร้าง workflow ใหม่"       | `ADR-001`, `ADR-021`, `specs/200-fullstacks/203-unified-workflow-engine/`             | DSL workflow definition + WorkflowEngineService setup                   |
+| "ตรวจสอบ AI boundary"       | `ADR-023`, `ADR-023A`                                                                 | Verify Ollama isolation + BullMQ queues + Qdrant projectPublicId filter |
+| "Intent classification"     | `ADR-024`, `specs/200-fullstacks/224-intent-classification/`                          | Pattern Layer → LLM Fallback; ai_intent_patterns; Redis cache 5 min     |
+| "AI Tool Layer"             | `ADR-025`, `specs/200-fullstacks/225-ai-tool-layer-architecture/`                     | Tool Registry; CASL-guarded dispatch; ToolResult publicId only          |
+| "Document Chat UI"          | `ADR-026`, `specs/200-fullstacks/226-document-chat-ui-pattern/`                       | Side-panel; useAiChat() hook; streaming SSE; TanStack Query cache       |
+| "AI Admin Console"          | `ADR-027`, `specs/200-fullstacks/227-ai-admin-console/`                               | Dynamic model/prompt/intent control; admin-only CASL endpoints          |
+| "Migration refactor"        | `ADR-028`, `specs/200-fullstacks/228-migration-arch-refactor/`                        | Staging Queue; post-migration cleanup; validation gates                 |
+| "จัดการ document numbering" | `ADR-002`, `specs/03-Data-and-Storage/03-04-document-numbering.md`                    | Redis Redlock + template system + preview/override workflows            |
+| "Audit ความปลอดภัย"         | `ADR-016`, `ADR-019`, `ADR-023`, `ADR-023A`                                           | ตรวจสอบ UUID pattern, CASL Guard, AI Boundary และ Qdrant multi-tenancy  |
+| "แก้ bug / bugfix"          | `.agents/workflows/bugfix.md`, `error-catalog.md`                                     | ใช้ bugfix workflow สำหรับเคสที่สาเหตุชัดเจน                            |
+| "ตรวจแอปจริง"               | `.windsurf/workflows/check-real-app.md`                                               | ตรวจ endpoint/UI/console หลัง build pass — No Fake Evidence             |
+| "งานค้าง / resume"          | `.windsurf/workflows/resume-pending-work.md`                                          | อ่าน checkpoint เดิม → ตรวจ build → วางแผนต่อโดยไม่ทำงานซ้ำ             |
@@ -0,0 +1,36 @@
+---
+trigger: always_on
+---
+
+# Commit Checklist
+
+## Pre-Commit Verification
+
+- [ ] UUID pattern verified (no parseInt on UUID)
+- [ ] No `any` types in TypeScript
+- [ ] No `console.log` in committed code
+- [ ] Comments in Thai
+- [ ] Code identifiers in English
+- [ ] Schema changes via SQL directly (not migration)
+- [ ] Test coverage meets targets (Backend 70%+, Business Logic 80%+)
+- [ ] Relevant ADRs checked (ADR-009, ADR-018, ADR-019)
+- [ ] Glossary terms used correctly
+- [ ] Error handling complete (Logger + HttpException)
+- [ ] i18n keys used instead of hardcode text
+- [ ] Cache invalidation when data modified
+- [ ] Security checklist passed (OWASP Top 10)
+
+## Commit Message Format
+
+```
+type(scope): description
+
+[optional body]
+```
+
+Types: `feat`, `fix`, `docs`, `style`, `refactor`, `test`, `chore`
+
+Examples:
+- `feat(correspondence): add originator organization validation`
+- `fix(uuid): correct parseInt usage to string comparison`
+- `spec(agents): bump to v1.8.5 - refactor structure`
@@ -0,0 +1,78 @@
+---
+trigger: always_on
+---
+
+# ADR-007 Error Handling Strategy
+
+## CRITICAL RULES
+
+- **ALWAYS** use layered error classification (Validation, Business, System)
+- **NEVER** expose technical details to end users
+- **ALWAYS** provide user-friendly error messages with recovery guidance
+- **ALWAYS** log technical details for debugging
+- **NEVER** use generic error messages without context
+
+## Error Classification
+
+| Error Type | Description | User Message | Technical Log |
+|------------|-------------|--------------|---------------|
+| **Validation** | Input validation failures | Clear field-level errors | Full validation details |
+| **Business** | Business rule violations | Actionable guidance | Business context + user ID |
+| **System** | Infrastructure failures | Generic "try again" | Full stack trace + metrics |
+
+## Backend Pattern (NestJS)
+
+```typescript
+// Custom Exception Hierarchy
+export class BusinessException extends HttpException {
+  constructor(
+    message: string,
+    userMessage: string,
+    recoveryAction?: string,
+    errorCode?: string
+  ) {
+    super({ message, userMessage, recoveryAction, errorCode }, 400);
+  }
+}
+
+// Global Exception Filter
+@Catch()
+export class GlobalExceptionFilter implements ExceptionFilter {
+  catch(exception: unknown, host: ArgumentsHost) {
+    // Classify error and provide appropriate response
+    // Log technical details
+    // Return user-friendly message
+  }
+}
+```
+
+## Frontend Pattern (Next.js)
+
+```typescript
+// Error Display Component
+const ErrorDisplay = ({ error, onRetry }) => {
+  const userMessage = error.userMessage || 'เกิดข้อผิดพลาด';
+  const recoveryAction = error.recoveryAction;
+
+  return (
+    <div>
+      <p>{userMessage}</p>
+      {recoveryAction && <p>{recoveryAction}</p>}
+      {onRetry && <button onClick={onRetry}>ลองใหม่</button>}
+    </div>
+  );
+};
+```
+
+## Required Implementation
+
+- [ ] Global Exception Filter with layered classification
+- [ ] Custom exception hierarchy (Validation, Business, System)
+- [ ] Standardized error response DTOs
+- [ ] Frontend error display components
+- [ ] Error recovery mechanisms where applicable
+
+## Related Documents
+
+- `specs/06-Decision-Records/ADR-007-error-handling-strategy.md`
+- `specs/06-Decision-Records/ADR-010-logging-monitoring-strategy.md`
@@ -0,0 +1,149 @@
+---
+trigger: always_on
+---
+
+# ADR-023/023A AI Integration Architecture
+
+## CRITICAL RULES
+
+- **ALWAYS** follow ADR-023 AI boundary policy (isolation on Admin Desktop)
+- **ALWAYS** use ADR-023A 2-model stack (gemma4:e2b + nomic-embed-text)
+- **ALWAYS** use BullMQ 2-queue (ai-realtime + ai-batch) for GPU overload prevention
+- **NEVER** allow AI direct database/storage access
+- **ALWAYS** implement human-in-the-loop validation
+- **NEVER** send sensitive data to cloud AI services
+- **ALWAYS** enforce Qdrant projectPublicId filter (compile-time enforcement)
+- **NEVER** allow n8n to call Ollama/Qdrant directly (must go through DMS API → BullMQ)
+
+## AI Integration Patterns
+
+### Architecture Overview
+
+```
+Frontend → AI Gateway API → BullMQ → Admin Desktop (Ollama) → Backend Validation
+n8n (Migration) → DMS API → BullMQ → Admin Desktop (Ollama) → Backend Validation
+```
+
+### Key Components
+
+| Component         | Location                  | Purpose                                                                  |
+| ----------------- | ------------------------- | ------------------------------------------------------------------------ |
+| **AI Gateway**    | Backend (NestJS)          | API endpoints, validation, audit logging                                 |
+| **BullMQ Queues** | Backend (NestJS)          | ai-realtime (RAG/Suggest), ai-batch (OCR/Extract/Embed)                  |
+| **Ollama Engine** | Admin Desktop (Desk-5439) | gemma4:e2b (LLM) + nomic-embed-text (Embedding)                          |
+| **OCR Engine**    | Admin Desktop (Desk-5439) | PaddleOCR + PyThaiNLP (Thai/English text extraction)                     |
+| **Orchestrator**  | QNAP NAS (n8n)            | Migration Phase orchestrator only (calls DMS API, never Ollama directly) |
+
+## Backend Implementation (NestJS)
+
+```typescript
+// AI Module with boundary enforcement
+@Module({
+  controllers: [AiController],
+  providers: [AiService, AiGateway, QdrantService],
+  exports: [AiService],
+})
+export class AiModule {
+  constructor() {
+    // Enforce ADR-023 boundaries
+  }
+}
+
+// QdrantService with compile-time projectPublicId enforcement
+@Injectable()
+export class QdrantService {
+  async search(
+    projectPublicId: string,   // required — compile-time enforcement
+    vector: number[],
+    topK: number = 5,
+  ): Promise<QdrantSearchResult[]> {
+    return this.client.search('documents', {
+      vector,
+      limit: topK,
+      filter: {
+        must: [{ key: 'project_public_id', match: { value: projectPublicId } }],
+      },
+    });
+  }
+
+  async upsert(
+    projectPublicId: string,   // required
+    chunks: DocumentChunk[],
+  ): Promise<void> { ... }
+
+  // ❌ NEVER expose rawSearch() or method without projectPublicId filter
+}
+
+// AI Service with validation
+@Injectable()
+export class AiService {
+  async extractMetadata(documentId: string): Promise<AIMetadata> {
+    // 1. Validate permissions
+    // 2. Queue job to BullMQ (ai-batch or ai-realtime)
+    // 3. Worker sends to Admin Desktop AI (gemma4:e2b)
+    // 4. Validate AI response
+    // 5. Log audit trail to ai_audit_logs
+    // 6. Return validated results
+  }
+}
+```
+
+## Frontend Pattern (Next.js)
+
+```typescript
+// Document Review Form (reusable component)
+const DocumentReviewForm = ({ document, aiSuggestions }) => {
+  return (
+    <form>
+      <Field label="Document Type" suggestions={aiSuggestions.documentType} />
+      <Field label="Project Code" suggestions={aiSuggestions.projectCode} />
+      <Field label="Discipline" suggestions={aiSuggestions.discipline} />
+
+      <ConfidenceScore score={aiSuggestions.confidence} />
+      <HumanValidationActions />
+    </form>
+  );
+};
+```
+
+## Security Requirements
+
+- **AI Isolation:** All AI processing on Admin Desktop only (Desk-5439)
+- **Data Privacy:** No cloud AI services, on-premises only
+- **Audit Trail:** Log all AI interactions and human validations to ai_audit_logs
+- **Rate Limiting:** Prevent AI abuse and resource exhaustion
+- **Validation:** All AI outputs must be validated before use
+- **Multi-tenant Isolation:** Qdrant queries MUST include projectPublicId filter (compile-time enforcement)
+- **n8n Boundary:** n8n MUST call DMS API → BullMQ, NEVER Ollama/Qdrant directly
+- **GPU Overload Prevention:** BullMQ 2-queue (ai-realtime + ai-batch) with concurrency=1
+
+## ADR-023A Specific Rules
+
+- **2-Model Stack:** gemma4:e2b + nomic-embed-text
+- **PDF 3-Page Limit:** Classification/Tagging uses first 3 pages only (NOT RAG embedding)
+- **RAG Embedding:** Full document chunked at 512 tokens/64 tokens overlap
+- **OCR Auto-Detect:** PyMuPDF chars > 100 → Fast path, else PaddleOCR
+- **Embed Auto-Trigger:** AUTO after commit (parallel), gap covered by DB search
+- **Threshold Recalibration:** After 100-500 docs, based on ai_audit_logs analysis
+
+## Required Implementation
+
+- [ ] AiModule with ADR-023 boundary enforcement
+- [ ] AI Gateway API endpoints with validation
+- [ ] BullMQ 2-queue setup (ai-realtime + ai-batch)
+- [ ] QdrantService with projectPublicId enforcement
+- [ ] DocumentReviewForm reusable component
+- [ ] Admin Desktop Ollama (gemma4:e2b + nomic-embed-text) + PaddleOCR setup
+- [ ] n8n workflow orchestration (Migration Phase only)
+- [ ] AI audit logging and monitoring (ai_audit_logs)
+- [ ] Human-in-the-loop validation workflows
+
+## Related Documents
+
+- `specs/06-Decision-Records/ADR-023-unified-ai-architecture.md` (Base architecture)
+- `specs/06-Decision-Records/ADR-023A-unified-ai-architecture.md` (Model revision - current)
+- `specs/06-Decision-Records/ADR-024-intent-classification-strategy.md` (Pattern→LLM Fallback)
+- `specs/06-Decision-Records/ADR-025-ai-tool-layer-architecture.md` (Tool Registry)
+- `specs/06-Decision-Records/ADR-026-document-chat-ui-pattern.md` (Chat UI)
+- `specs/06-Decision-Records/ADR-027-ai-admin-console-and-dynamic-control.md` (Admin Console)
+- `specs/06-Decision-Records/ADR-028-migration-architecture-refactor.md` (Migration Pipeline)
@@ -0,0 +1,141 @@
+---
+trigger: always_on
+---
+
+# LCBP3 Agent Rules
+
+Critical rules and guidelines for AI agents working on LCBP3-DMS.
+
+## Version
+
+- **Current:** v1.9.6
+- **Last Updated:** 2026-05-22
+- **Synced with:** `AGENTS.md` (v1.9.6)
+
+## Purpose
+
+This directory contains rule files that define:
+
+- Project context and role expectations
+- Critical Tier 1 rules (CI blockers)
+- Coding standards and patterns
+- Domain terminology and glossary
+- Development workflows
+- Security requirements
+- AI integration architecture (ADR-023/023A)
+
+## Rule Enforcement Tiers
+
+### 🔴 Tier 1 — CRITICAL (CI BLOCKER)
+
+Build fails immediately if violated:
+
+- Security (Auth, RBAC, Validation)
+- UUID Strategy (ADR-019) — no `parseInt` / `Number` / `+` on UUID
+- Database correctness — verify schema before writing queries
+- File upload security (ClamAV + whitelist)
+- AI validation boundary (ADR-023)
+- Error handling strategy (ADR-007)
+- Forbidden patterns: `any`, `console.log`, UUID misuse, `id ?? ''` fallback
+
+### 🟡 Tier 2 — IMPORTANT (CODE REVIEW)
+
+Must fix before merge:
+
+- Architecture patterns (thin controller, business logic in service)
+- Test coverage (80%+ business logic, 70%+ backend overall)
+- Cache invalidation
+- Naming conventions
+- TypeScript Standards: Missing JSDoc, explicit types, or file headers
+
+### 🟢 Tier 3 — SPECIALIZED WORK
+
+Requires domain-specific knowledge:
+
+- **ADR-021 Integration:** Workflow Engine & Context implementation
+- **AI Infrastructure:** ADR-023/023A boundary enforcement and pipeline usage
+- **AI Runtime Layer:** ADR-024 Intent Classification, ADR-025 Tool Layer, ADR-026 Chat UI, ADR-027 Admin Console
+- **Migration Pipeline:** ADR-028 Staging Queue & post-migration cleanup
+- **Complex Business Logic:** Multi-step workflows with state management
+- **Performance Optimization:** Database queries, caching strategies, bulk operations
+
+### 🔵 Tier 4 — GUIDELINES
+
+Best practice — follow when possible:
+
+- Code style / formatting (Prettier handles)
+- Comment completeness
+- Minor optimizations
+
+## Rule Files
+
+### Core Rules (Tier 1 - CRITICAL)
+
+| File                    | Purpose                                                                         |
+| ----------------------- | ------------------------------------------------------------------------------- |
+| `00-project-context.md` | Project context, role & persona, tier classification, specs folder organization |
+| `01-adr-019-uuid.md`    | UUID handling strategy — no parseInt, use publicId only                         |
+| `02-security.md`        | Security requirements, checklist, ADR-023/023A AI boundaries                    |
+
+### Coding Standards
+
+| File                      | Purpose                                                 |
+| ------------------------- | ------------------------------------------------------- |
+| `03-typescript.md`        | TypeScript rules, file headers, i18n guidelines         |
+| `06-backend-patterns.md`  | NestJS patterns, UUID resolution, API response patterns |
+| `07-frontend-patterns.md` | Next.js patterns, RHF+Zod+TanStack Query, UUID handling |
+
+### Domain & Workflow
+
+| File                       | Purpose                                                       |
+| -------------------------- | ------------------------------------------------------------- |
+| `04-domain-terminology.md` | DMS glossary, key spec files priority table                   |
+| `08-development-flow.md`   | Development workflow by work type (Critical/Normal/Quick Fix) |
+
+### Compliance & Architecture
+
+| File                      | Purpose                                                        |
+| ------------------------- | -------------------------------------------------------------- |
+| `05-forbidden-actions.md` | Actions that must never be done, schema changes, UUID handling |
+| `09-commit-checklist.md`  | Pre-commit verification, commit message format                 |
+| `10-error-handling.md`    | ADR-007 error handling strategy, layered classification        |
+| `11-ai-integration.md`    | ADR-023/023A AI architecture, 2-model stack, BullMQ 2-queue    |
+
+## Key Spec Files Priority
+
+Spec priority: **`06-Decision-Records`** > **`05-Engineering-Guidelines`** > others
+
+| Document                       | Path                                                                        | Use When                          |
+| ------------------------------ | --------------------------------------------------------------------------- | --------------------------------- |
+| **Glossary**                   | `specs/00-overview/00-02-glossary.md`                                       | Verify domain terminology         |
+| **Schema Tables**              | `specs/03-Data-and-Storage/lcbp3-v1.9.0-schema-02-tables.sql`               | Before writing any query          |
+| **Data Dictionary**            | `specs/03-Data-and-Storage/03-01-data-dictionary.md`                        | Field meanings + business rules   |
+| **Edge Cases**                 | `specs/01-Requirements/01-06-edge-cases-and-rules.md`                       | Prevent bugs in flows             |
+| **ADR-019 UUID**               | `specs/06-Decision-Records/ADR-019-hybrid-identifier-strategy.md`           | UUID-related work                 |
+| **ADR-023 AI**                 | `specs/06-Decision-Records/ADR-023-unified-ai-architecture.md`              | AI integration work               |
+| **ADR-023A AI Model**          | `specs/06-Decision-Records/ADR-023A-unified-ai-architecture.md`             | 2-model stack, BullMQ 2-queue     |
+| **ADR-024 Intent Class.**      | `specs/06-Decision-Records/ADR-024-intent-classification-strategy.md`       | Pattern→LLM Fallback; Redis cache |
+| **ADR-025 AI Tool Layer**      | `specs/06-Decision-Records/ADR-025-ai-tool-layer-architecture.md`           | Tool Registry; CASL-guarded       |
+| **ADR-026 Chat UI**            | `specs/06-Decision-Records/ADR-026-document-chat-ui-pattern.md`             | Side-panel; streaming SSE         |
+| **ADR-027 AI Admin Console**   | `specs/06-Decision-Records/ADR-027-ai-admin-console-and-dynamic-control.md` | Dynamic control; admin-only       |
+| **ADR-028 Migration Refactor** | `specs/06-Decision-Records/ADR-028-migration-architecture-refactor.md`      | Staging Queue; cleanup            |
+| **Backend Guidelines**         | `specs/05-Engineering-Guidelines/05-02-backend-guidelines.md`               | NestJS patterns                   |
+| **Frontend Guidelines**        | `specs/05-Engineering-Guidelines/05-03-frontend-guidelines.md`              | Next.js patterns                  |
+| **Testing Strategy**           | `specs/05-Engineering-Guidelines/05-04-testing-strategy.md`                 | Coverage goals                    |
+
+## Maintenance
+
+When updating rules:
+
+1. **Check AGENTS.md version** — Ensure rule files are synced
+2. **Update version numbers** — Bump version in `00-project-context.md` only (03-typescript.md no longer has version)
+3. **Review ADR references** — Ensure all ADR references are current (ADR-023, ADR-023A, ADR-024~028)
+4. **Add new forbidden actions** — When new patterns are identified as violations
+5. **Update key spec files table** — When new ADRs or guidelines are added
+6. **Update Tier 3 SPECIALIZED WORK** — When new domain-specific workflows are added
+
+## Related Documents
+
+- `AGENTS.md` — Master agent configuration and context
+- `specs/06-Decision-Records/` — All Architecture Decision Records
+- `specs/05-Engineering-Guidelines/` — Backend, frontend, and testing guidelines
@@ -0,0 +1,30 @@
+# lcbp3 Development Guidelines
+
+Auto-generated from all feature plans. Last updated: 2026-05-30
+
+## Active Technologies
+
+- TypeScript 5.x (NestJS 11 backend, Next.js 16 frontend), Python 3.11 (OCR sidecar)
+ + Ollama (AI runtime), BullMQ (job queues), TypeORM (ORM), Redis (caching/locks), MariaDB 11.8 (database)
+ (232-typhoon-ocr-integration)
+
+## Project Structure
+
+```text
+backend/
+frontend/
+tests/
+```
+
+## Commands
+
+cd src [ONLY COMMANDS FOR ACTIVE TECHNOLOGIES][ONLY COMMANDS FOR ACTIVE TECHNOLOGIES] pytest [ONLY COMMANDS FOR ACTIVE TECHNOLOGIES][ONLY COMMANDS FOR ACTIVE TECHNOLOGIES] ruff check .
+
+## Code Style
+
+TypeScript 5.x (NestJS 11 backend, Next.js 16 frontend), Python 3.11 (OCR sidecar)
+: Follow standard conventions
+
+## Recent Changes
+
+- 232-typhoon-ocr-integration: Added TypeScript 5.x (NestJS 11 backend, Next.js 16 frontend), Python 3.11 (OCR sidecar)