[CLAUDE] Skill: thêm 3 skill ops project-specific

Khảo sát alirezarezvani/claude-skills repo — phần lớn skill đã có ở user-level (code-reviewer, sql-database-assistant, focused-fix, senior-frontend, mcp-builder...). Bulk import sẽ trùng + nhiều skill là doc-dump generic không có YAML when-to-use. Thay vào đó: viết 3 skill PROJECT-SPECIFIC encode kiến thức SOLUTION_ERP-only mà generic không thể biết: - dependency-audit-erp: dotnet list --vulnerable + npm audit cho fe-admin/fe-user, respect pin constraint MediatR 12.4.1 + Swashbuckle 6.9.0 + Node 20.x, dẫn chiếu gotchas, output template + CI integration TODO Phase 5.1 - ef-core-migration: 8 migration history + 3-file rule + Design TimeDbContextFactory + 6 pitfalls cụ thể (bao gồm cascade vs restrict cho WorkflowDefinitionId), workflow add entity mới end- to-end, prod apply via idempotent script - iis-deploy-runbook: 3 IIS site topology + win-acme cert + NSSM gitea-runner shared VIETREPORT + LibreOffice 25.8.6 headless, debug playbook 500/502/SignalR/login, deploy steps + manual emergency, rotate creds + backup commands, dẫn chiếu gotcha #25/26/28/29 Skills README cập nhật: 6 skill (3 domain + 3 ops). CLAUDE.md + docs/CLAUDE.md sync count. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-22 23:44:24 +07:00
parent fbca83264c
commit 661f8595f8
6 changed files with 746 additions and 18 deletions
--- a/.claude/skills/README.md
+++ b/.claude/skills/README.md
@ -4,11 +4,21 @@ Skill này là tài liệu chuyên biệt để Claude (và developer khác) dù

 ## Skills hiện có

+### Domain skills (logic nghiệp vụ)
+
 | Skill | Mục đích | Trigger ví dụ | Trạng thái |
 |---|---|---|---|
-| `contract-workflow` | State machine 9 phase, role × phase guard, SLA timer, auto-approve | "approve contract", "chuyển phase", "auto-approve quá hạn" | 📝 Placeholder (Phase 3) |
-| `form-engine` | Render template docx/xlsx, parse 8 form, field mapping, PO generator | "export contract as word", "điền form", "render template" | 📝 Placeholder (Phase 2) |
-| `permission-matrix` | Role × MenuKey × CRUD, seed, reset password, 3-layer resolution | "permission denied", "gán role", "menu không hiện" | 📝 Placeholder (Phase 1) |
+| `contract-workflow` | State machine 9 phase + versioned workflow per ContractType + role × phase guard + SLA + auto-gen mã HĐ RG-001 | "approve contract", "chuyển phase", "versioned workflow", "HĐ cũ giữ cũ" | ✅ Tier 3 updated |
+| `form-engine` | Render template docx/xlsx + FieldSpec JSON + DynamicForm + PDF export LibreOffice | "export contract as word", "điền form", "render template", "PDF export" | ✅ Active |
+| `permission-matrix` | Role × MenuKey × CRUD + seed + 3-layer resolution + inherit Contracts/Workflows | "permission denied", "gán role", "menu không hiện", "inherit permission" | ✅ Active |
+
+### Ops/infra skills (devops + security + schema)
+
+| Skill | Mục đích | Trigger ví dụ | Trạng thái |
+|---|---|---|---|
+| `dependency-audit-erp` | Scan CVE NuGet + npm 2 FE, respect pin constraint (MediatR 12.4.1, Swashbuckle 6.9.0) | "npm audit", "dotnet vulnerable", "deps scan", "nâng cấp package" | ✅ New Tier 3 |
+| `ef-core-migration` | Tạo/revert EF Core 10 migration, 3-file rule, DesignTimeDbContextFactory, 8 migration history | "thêm migration", "EF migration", "schema update", "snapshot lỗi" | ✅ New Tier 3 |
+| `iis-deploy-runbook` | 3 IIS site + win-acme cert + gitea-runner + LibreOffice + debug 500/502/SignalR prod | "prod 500", "IIS fail", "cert hết hạn", "restart app pool", "deploy IIS" | ✅ New Tier 3 |

 ## Format chuẩn 1 skill

@ -17,34 +27,36 @@ Mỗi skill là 1 folder với ít nhất `SKILL.md` + optional `examples/` + `r
 ```
 .claude/skills/<skill-name>/
 ├── SKILL.md                  ← Entry point: description, when-to-use, workflow
-├── examples/                 ← Code snippets mẫu
+├── examples/                 ← Code snippets mẫu (optional)
 │   └── *.cs | *.tsx
-└── references/               ← Link đến file code thật, docs
+└── references/               ← Link đến file code thật, docs (optional)
 ```

-**Frontmatter `SKILL.md`:**
+**Frontmatter `SKILL.md` (BẮT BUỘC `when-to-use` để skill auto-trigger):**

 ```markdown
 ---
-name: contract-workflow
-description: State machine 9 phase cho hợp đồng — guard rule, SLA, auto-approve
+name: skill-name-kebab-case
+description: 1-3 câu mô tả skill làm gì + stack specificity (để embedding match chính xác)
 when-to-use:
-  - "approve contract"
-  - "state machine bug"
-  - "SLA expired"
+  - "trigger phrase 1"
+  - "trigger phrase 2"
+  - "keyword tiếng Việt"
 ---

-# Contract Workflow Skill
+# Skill Name

 ## Context
 ...

-## Workflow
+## Workflow / Commands
+...
+
+## Pitfalls
 ...

 ## Code pointers
- `src/Backend/SolutionErp.Domain/Contracts/ContractPhase.cs`
- `src/Backend/SolutionErp.Application/Contracts/Commands/TransitionContractCommand.cs`
+- `path/to/file.cs`
 ```

 ## Tạo skill mới — checklist
@ -52,4 +64,28 @@ when-to-use:
 1. Tạo folder `.claude/skills/<kebab-case-name>/`
 2. Viết `SKILL.md` với frontmatter + sections: Context / Workflow / Code pointers / Common pitfalls
 3. Add row vào bảng "Skills hiện có" phía trên
-4. Commit `[CLAUDE] Skill: add <name>`
+4. Update `docs/CLAUDE.md` (dòng skill count)
+5. Commit `[CLAUDE] Skill: add <name>`
+
+## Nguyên tắc design skill
+
+**PROJECT-SPECIFIC, không clone generic:**
+- Skill user-level global đã có sẵn (`code-reviewer`, `sql-database-assistant`, `focused-fix`, ...)
+- Skill project-level phải encode kiến thức SOLUTION_ERP-only mà generic không có:
+  - Commit convention `[CLAUDE] <scope>: ...`
+  - Path pattern `src/Backend/SolutionErp.*/...`
+  - Pin constraint (MediatR 12.4.1, Swashbuckle 6.9.0, TypeScript 6 erasableSyntaxOnly)
+  - Gotcha-referenced (dẫn chiếu `docs/gotchas.md#N`)
+  - Workflow Vietnamese-first
+
+**Keep it actionable:**
+- Commands copy-pastable (không pseudocode)
+- Paths đầy đủ (không `src/...`)
+- Version pinned (không "latest")
+- Dẫn chiếu gotcha/migration # cụ thể
+
+## Related
+
+- `docs/CLAUDE.md` — quick rules + full stack context
+- `docs/gotchas.md` — 32 bẫy đã gặp
+- `docs/changelog/migration-todos.md` — roadmap 5 phase + Tier 3
--- a/.claude/skills/dependency-audit-erp/SKILL.md
+++ b/.claude/skills/dependency-audit-erp/SKILL.md
@ -0,0 +1,155 @@
+---
+name: dependency-audit-erp
+description: Scan lỗ hổng NuGet + npm cho SOLUTION_ERP (.NET 10 + 2 FE React). Chạy dotnet list package --vulnerable + npm audit cho fe-admin/fe-user, report CVE + decide upgrade path. Respect pin constraint (MediatR 12.4.1 cannot upgrade to 14, Swashbuckle 6.9.0 cannot upgrade to 7+, Node 20.x only for CI).
+when-to-use:
+  - "dependency audit"
+  - "npm audit"
+  - "dotnet vulnerable"
+  - "scan CVE"
+  - "nâng cấp package"
+  - "security dependencies"
+  - "deps scan CI"
+---
+
+# Dependency Audit — SOLUTION_ERP
+
+> **Context:** Phase 5.1 security backlog explicit — "Dependencies scan CI (`dotnet list package --vulnerable --include-transitive`, `npm audit --audit-level=high`)". Chưa hook vào workflow, có thể chạy manual.
+
+## Commands (chạy từ root repo)
+
+### Backend .NET
+
+```powershell
+# Restore trước khi scan (first time / sau pull)
+dotnet restore
+
+# Scan top-level + transitive vulnerable
+dotnet list src/Backend/SolutionErp.Api/SolutionErp.Api.csproj package --vulnerable --include-transitive
+
+# Scan cả solution
+dotnet list SolutionErp.slnx package --vulnerable --include-transitive
+
+# Outdated check (khác vulnerable — chỉ cảnh báo version cũ)
+dotnet list SolutionErp.slnx package --outdated
+```
+
+**Output interpretation:**
+- `> High` / `> Critical` severity → fix ngay (pin lên patch/minor version không breaking)
+- `> Moderate` → plan trong sprint tới
+- `> Low` → track, không rush
+
+### Frontend 2 app
+
+```powershell
+# fe-admin
+cd fe-admin
+npm audit --audit-level=high
+npm audit --json > ../tmp/fe-admin-audit.json  # detail
+cd ..
+
+# fe-user
+cd fe-user
+npm audit --audit-level=high
+npm audit --json > ../tmp/fe-user-audit.json
+cd ..
+```
+
+Hoặc chạy song song từ 1 lệnh:
+```powershell
+cd fe-admin; npm audit --audit-level=high; cd ..; cd fe-user; npm audit --audit-level=high; cd ..
+```
+
+## ⚠️ Pin constraints — KHÔNG auto-upgrade dù có CVE/outdated
+
+Đọc `docs/gotchas.md` trước khi bấm `npm audit fix` hoặc `dotnet add package`. Những pin sau đây có lý do rõ ràng:
+
+### Backend pins
+
+| Package | Current | Lý do không upgrade | Gotcha # |
+|---|---|---|---|
+| `MediatR` | **12.4.1** | v14 breaking — `AddMediatR` fail resolve `IMediator` | #1 |
+| `Swashbuckle.AspNetCore` | **6.9.0** | v10+ yêu cầu `Microsoft.OpenApi` 2.x — breaking `Swashbuckle.AspNetCore.Models` namespace | #2 |
+| `Microsoft.AspNetCore.OpenApi` | **removed** | Conflict Swashbuckle, dùng riêng 1 trong 2 | #2 |
+| `Microsoft.EntityFrameworkCore` | **10.x** | Pin theo .NET 10 SDK (`global.json` 10.0.104) | — |
+| `Microsoft.AspNetCore.Identity` | **10.x** | Pin theo .NET 10 — `AddIdentityCore` không có `AddDefaultTokenProviders` | #8 |
+
+### Frontend pins
+
+| Package | Current | Lý do pin |
+|---|---|---|
+| `typescript` | **6.x** | `erasableSyntaxOnly` cấm enum → đã rewrite const-object pattern, rollback = rewrite lại (#3) |
+| `vite` | **8.x** | rolldown native binding cần fresh `node_modules` trên CI (gotcha npm ci fail) |
+| `@microsoft/signalr` | **8.0.7** | SignalR hub version parity với ASP.NET Core 10 — test kỹ trước khi bump |
+| `react` | **19** | Auto-scaffolded, đã style-adapt cho |
+| Node engine | **`>=20`** | CI pin `20.x` qua `.nvmrc` (NamGroup bài học, gotcha #5) |
+
+## Workflow khi fix vulnerability
+
+```
+1. Đọc CVE detail: npm audit (--json) hoặc https://github.com/advisories/GHSA-xxxx
+2. Check có phải transitive dep không?
+   - Direct → bump trong package.json / .csproj, test build
+   - Transitive → check ancestor package, có newer không
+3. Nếu ancestor fix available nhưng là major version:
+   - Đánh giá breaking change (đọc CHANGELOG)
+   - Nếu yes → defer + document, dùng npm overrides hoặc dotnet transitive constraint
+4. Test local:
+   - BE: dotnet build + dotnet run → /health/ready healthy
+   - FE: npm run build + npm run dev → login flow + CRUD smoke test
+5. Commit [CLAUDE] Infra: bump <package> for CVE-xxxx
+6. Watch CI xanh
+```
+
+## CI integration (TODO — Phase 5.1 backlog)
+
+Dự kiến thêm vào `.gitea/workflows/deploy.yml` step:
+
+```yaml
+- name: Deps audit
+  shell: pwsh
+  run: |
+    dotnet list SolutionErp.slnx package --vulnerable --include-transitive 2>&1 | Tee-Object -Variable nugetOut
+    if ($nugetOut -match 'has the following vulnerable packages') {
+      Write-Error "NuGet vulnerabilities found"
+      exit 1
+    }
+    cd fe-admin; npm audit --audit-level=high; if ($LASTEXITCODE -ne 0) { exit 1 }; cd ..
+    cd fe-user;  npm audit --audit-level=high; if ($LASTEXITCODE -ne 0) { exit 1 }; cd ..
+```
+
+Gate nên set `continue-on-error: true` lần đầu → monitor 1 tuần → enable blocking.
+
+## Output template (khi manual chạy)
+
+```markdown
+# Deps audit — {YYYY-MM-DD}
+
+## NuGet
+- Critical: 0
+- High: 0
+- Moderate: 0
+- Low: 0
+
+## npm fe-admin
+- Critical: 0
+- High: 0
+- Moderate: N (liệt kê)
+
+## npm fe-user
+- Critical: 0
+- High: 0
+- ...
+
+## Action items
+- [ ] Bump X from a.b.c → a.b.d (patch, safe) — CVE-xxxx
+- [ ] Defer Y (v3 → v4 breaking, plan Phase N)
+- [ ] Override Z via npm overrides (transitive, no direct bump)
+```
+
+Lưu vào `docs/changelog/deps-audit-{YYYY-MM-DD}.md` nếu có action.
+
+## Related
+
+- `docs/gotchas.md` — 26+ bẫy package compat đã gặp
+- `docs/changelog/migration-todos.md` Phase 5.1 — checklist deps scan CI
+- `SolutionErp.slnx` + `global.json` — .NET version pin
--- a/.claude/skills/ef-core-migration/SKILL.md
+++ b/.claude/skills/ef-core-migration/SKILL.md
@ -0,0 +1,205 @@
+---
+name: ef-core-migration
+description: Tạo/sửa/revert EF Core 10 migration cho SOLUTION_ERP. Dùng khi thêm entity mới, thay đổi schema, rollback migration, debug DesignTimeDbContextFactory fail. Đã có 8 migration sẵn (Init → AddVersionedWorkflows). Snapshot + Designer + Migration 3-file rule bắt buộc commit đủ.
+when-to-use:
+  - "thêm migration"
+  - "EF Core migration"
+  - "dotnet ef migrations add"
+  - "revert migration"
+  - "schema DB update"
+  - "DbContext change"
+  - "snapshot lỗi"
+  - "DesignTimeDbContextFactory"
+---
+
+# EF Core Migration — SOLUTION_ERP
+
+> **Context:** .NET 10 + EF Core 10 + SQL Server. DbContext: `ApplicationDbContext` ở `Infrastructure/Persistence/`. Startup: `SolutionErp.Api`.
+
+## Migration history (8 migration hiện có)
+
+| # | Name | Tables added / changed |
+|---|---|---|
+| 1 | `Init` | 7 Identity tables (AspNetUsers/Roles/UserRoles/...) |
+| 2 | `AddMasterData` | Suppliers, Projects, Departments |
+| 3 | `AddPermissions` | MenuItems, Permissions |
+| 4 | `AddForms` | ContractTemplates, ContractClauses |
+| 5 | `AddContractsWorkflow` | Contracts, ContractApprovals, ContractComments, ContractAttachments, ContractCodeSequences |
+| 6 | `AddNotifications` | Notifications |
+| 7 | `AddWorkflowTypeAssignments` | WorkflowTypeAssignments (legacy admin override) |
+| 8 | `AddVersionedWorkflows` | WorkflowDefinitions, WorkflowSteps, WorkflowStepApprovers + `Contracts.WorkflowDefinitionId` FK |
+
+Total: **24 bảng** dbo + `__EFMigrationsHistory`. Xem `docs/database/schema-diagram.md` ERD đầy đủ.
+
+## Commands (chạy từ root repo)
+
+### Thêm migration mới
+
+```powershell
+# Sau khi chỉnh Domain entity + EF config + DbContext DbSet
+dotnet ef migrations add <MigrationName> `
+  --project src/Backend/SolutionErp.Infrastructure `
+  --startup-project src/Backend/SolutionErp.Api `
+  --output-dir Persistence/Migrations
+```
+
+**Naming convention:** PascalCase, verb prefix:
+- `Add<Thing>` — thêm entity / bảng
+- `Update<Thing>` — thay đổi schema
+- `Remove<Thing>` — xóa column / table
+- `Rename<Thing>` — đổi tên
+
+### Apply migration to DB
+
+```powershell
+# Dev: LocalDB SolutionErp_Dev
+dotnet ef database update `
+  --project src/Backend/SolutionErp.Infrastructure `
+  --startup-project src/Backend/SolutionErp.Api
+
+# Hoặc đơn giản: chạy API → DbInitializer tự Migrate
+dotnet run --project src/Backend/SolutionErp.Api
+```
+
+### Revert 1 migration (rollback)
+
+```powershell
+# Rollback về migration trước đó (ví dụ về sau AddWorkflowTypeAssignments)
+dotnet ef database update AddWorkflowTypeAssignments `
+  --project src/Backend/SolutionErp.Infrastructure `
+  --startup-project src/Backend/SolutionErp.Api
+
+# Xóa file migration (3 file, xem dưới)
+dotnet ef migrations remove `
+  --project src/Backend/SolutionErp.Infrastructure `
+  --startup-project src/Backend/SolutionErp.Api
+```
+
+### Gen SQL script (review trước khi apply prod)
+
+```powershell
+# Script từ 1 migration → latest
+dotnet ef migrations script AddWorkflowTypeAssignments `
+  --project src/Backend/SolutionErp.Infrastructure `
+  --startup-project src/Backend/SolutionErp.Api `
+  --output tmp/migration-7-to-8.sql
+
+# Idempotent (check if exists trước mỗi operation)
+dotnet ef migrations script --idempotent `
+  --project src/Backend/SolutionErp.Infrastructure `
+  --startup-project src/Backend/SolutionErp.Api
+```
+
+## 3-file rule (BẮT BUỘC commit đủ)
+
+Mỗi `migrations add` sinh **3 file** — phải commit đủ:
+
+```
+src/Backend/SolutionErp.Infrastructure/Persistence/Migrations/
+├── {Timestamp}_{Name}.cs              ← migration logic (Up/Down)
+├── {Timestamp}_{Name}.Designer.cs     ← model snapshot tại thời điểm migration
+└── ApplicationDbContextModelSnapshot.cs  ← current model state (được overwrite mỗi migration)
+```
+
+**Gotcha #17:** Thiếu `ModelSnapshot.cs` → `migrations add` kế tiếp sẽ sinh duplicate columns. Thiếu `Designer.cs` → không revert được.
+
+## Pitfalls thường gặp
+
+### P1 — DesignTime DbContext resolve fail
+
+**Triệu chứng:** `dotnet ef migrations add` → `Unable to resolve service for type 'DbContextOptions<ApplicationDbContext>'`.
+
+**Nguyên nhân:** EF tooling chạy đứng ngoài runtime DI, cần factory riêng.
+
+**Fix:** Đã có `src/Backend/SolutionErp.Infrastructure/Persistence/DesignTimeDbContextFactory.cs`. Nếu connection string thay đổi → update factory, không chỉ `appsettings.json`.
+
+### P2 — Table rename / column rename gen ra DROP + CREATE
+
+**Triệu chứng:** Migration sinh `DropColumn` + `AddColumn` thay vì `RenameColumn` → mất data.
+
+**Fix:** Sửa migration thủ công sang `migrationBuilder.RenameColumn(...)`. Hoặc dùng `[Column("newname")]` attribute để EF tự detect rename.
+
+### P3 — Query filter (soft delete) khi thêm FK
+
+**Triệu chứng:** Warning `The entity type 'X' has a global query filter but referencing entity 'Y' doesn't. This may lead to inconsistent results`.
+
+**Fix:** Entity reference cũng phải có query filter:
+```csharp
+builder.HasQueryFilter(x => !x.IsDeleted);
+```
+
+Hoặc dùng `.IgnoreQueryFilters()` cho query cần bypass.
+
+### P4 — FK cascade/restrict khác với expectation
+
+**Triệu chứng:** Migration apply OK nhưng DELETE parent → cascade sang child (hoặc ngược lại restrict block).
+
+**Fix:** Explicit config trong `IEntityTypeConfiguration<T>`:
+```csharp
+builder.HasOne(x => x.Contract)
+    .WithMany(c => c.Approvals)
+    .HasForeignKey(x => x.ContractId)
+    .OnDelete(DeleteBehavior.Cascade);  // hoặc Restrict, SetNull
+```
+
+**Case study quan trọng:** `Contracts.WorkflowDefinitionId` → `WorkflowDefinitions.Id` **PHẢI dùng `Restrict`** để protect HĐ cũ khi admin archive version (xem `workflow-contract.md` invariants).
+
+### P5 — Nullable reference type gen column NOT NULL
+
+**Triệu chứng:** Property `public string? Description` → migration gen `NOT NULL`.
+
+**Fix:** Check `builder.HasQueryFilter` chỗ config, hoặc explicit `builder.Property(x => x.Description).IsRequired(false)`.
+
+### P6 — `AddVersionedWorkflows` duplicate seed
+
+**Case study hiện tại:** Nếu thêm migration mới sau `AddVersionedWorkflows`, cẩn thận KHÔNG trigger `DbInitializer.SeedWorkflowDefinitionsAsync` 2 lần. Check `if (!db.WorkflowDefinitions.Any())` trong DbInitializer.
+
+## Workflow khi thêm entity mới (example: add AuditLog)
+
+```
+1. Domain/AuditLogs/AuditLog.cs — tạo entity (BaseEntity hoặc AuditableEntity)
+2. Infrastructure/Persistence/Configurations/AuditLogConfiguration.cs
+   - ToTable("AuditLogs")
+   - Unique index trên (EntityType, EntityId) nếu cần
+3. Infrastructure/Persistence/ApplicationDbContext.cs
+   - public DbSet<AuditLog> AuditLogs => Set<AuditLog>();
+4. Application/Common/Interfaces/IApplicationDbContext.cs
+   - DbSet<AuditLog> AuditLogs { get; }
+5. dotnet ef migrations add AddAuditLogs
+6. Review file .cs sinh ra → OK
+7. dotnet ef database update → LocalDB apply
+8. Test: dotnet run → check bảng được tạo
+9. Commit [CLAUDE] Domain+Infra: add AuditLog entity + migration
+10. ⚠️ UPDATE docs/database/schema-diagram.md (ERD + migration table)
+11. UPDATE docs/STATUS.md nếu là work lớn
+```
+
+## Apply prod (VPS)
+
+```powershell
+# Trên VPS, sau khi deploy code:
+# Option 1: auto migrate — DbInitializer.MigrateAsync() chạy khi API startup
+# Option 2: manual script
+dotnet ef migrations script <LastApplied> --idempotent --output migrate.sql
+# Review migrate.sql → chạy qua sqlcmd:
+sqlcmd -S .\SQLEXPRESS -d SolutionErp -U vrapp -P <pw> -i migrate.sql
+```
+
+**Prod safety:**
+- Backup trước: `scripts/backup-sql.ps1`
+- Dry-run idempotent script local trước
+- Test rollback plan: script from-N-to-M-1 sẵn
+
+## Code pointers
+
+- `src/Backend/SolutionErp.Infrastructure/Persistence/ApplicationDbContext.cs` — 24 DbSet
+- `src/Backend/SolutionErp.Infrastructure/Persistence/DesignTimeDbContextFactory.cs` — EF tooling factory
+- `src/Backend/SolutionErp.Infrastructure/Persistence/DbInitializer.cs` — seed + warn + migrate runtime
+- `src/Backend/SolutionErp.Infrastructure/Persistence/Configurations/` — 24 IEntityTypeConfiguration
+- `src/Backend/SolutionErp.Application/Common/Interfaces/IApplicationDbContext.cs` — interface Application layer
+
+## Related
+
+- `docs/database/database-guide.md` — conventions + migration workflow chi tiết
+- `docs/database/schema-diagram.md` — ERD 24 bảng
+- `docs/gotchas.md` #7, #17 — migration pitfalls
--- a/.claude/skills/iis-deploy-runbook/SKILL.md
+++ b/.claude/skills/iis-deploy-runbook/SKILL.md
@ -0,0 +1,332 @@
+---
+name: iis-deploy-runbook
+description: Ops runbook cho SOLUTION_ERP deploy trên Windows Server IIS — 3 site (api/admin/user.huypham.vn), win-acme Let's Encrypt, NSSM gitea-runner shared với VIETREPORT, LibreOffice soffice headless. Dùng khi debug 500/502 prod, restart site, rotate cert, fix CI/CD runner, troubleshoot WebSocket, thêm site mới.
+when-to-use:
+  - "prod 500 error"
+  - "IIS site fail"
+  - "cert hết hạn"
+  - "win-acme"
+  - "gitea runner"
+  - "deploy IIS"
+  - "restart app pool"
+  - "webSocket 500"
+  - "reverse proxy FE"
+  - "LibreOffice prod"
+---
+
+# IIS Deploy Runbook — SOLUTION_ERP
+
+> **Context:** VPS Windows Server shared với VIETREPORT project. IIS + URL Rewrite + ARR + WebSockets module + win-acme. Deploy qua Gitea Actions self-hosted runner.
+
+## Production topology
+
+```
+Internet
+   │ 443 (HTTPS)
+   ▼
+┌─────────────────────────────────────────────────────┐
+│ IIS (Windows Server VPS)                            │
+│                                                      │
+│ ┌─ api.huypham.vn  ─┐  ┌─ admin.huypham.vn ─┐  ┌─ user.huypham.vn ─┐
+│ │ SolutionErp-Api    │  │ SolutionErp-Admin  │  │ SolutionErp-User  │
+│ │ → out-of-process   │  │ (static SPA, URL   │  │ (static SPA, URL  │
+│ │   Kestrel :5443    │  │  Rewrite /api → 5443)│ │  Rewrite...)      │
+│ │ ASP.NET Core 10   │  │ React build/        │  │ React build/      │
+│ │                    │  │                    │  │                    │
+│ └────────────────────┘  └────────────────────┘  └────────────────────┘
+│                                                      │
+│ Let's Encrypt (win-acme) — 3 cert auto-renew 60d    │
+│ Shared gitea-runner NSSM service (with VIETREPORT)  │
+│ LibreOffice 25.8.6 headless                         │
+│ SQL Server 2019 Express (\\.\SQLEXPRESS)            │
+└─────────────────────────────────────────────────────┘
+```
+
+## 3 IIS sites
+
+| Site | Binding | Physical path | Apool | Purpose |
+|---|---|---|---|---|
+| `SolutionErp-Api` | `*:443:api.huypham.vn` HTTPS | `C:\inetpub\apps\SolutionErp\Api\` | out-of-process Kestrel | ASP.NET Core 10 API (port 5443 internal) |
+| `SolutionErp-Admin` | `*:443:admin.huypham.vn` HTTPS + `*:80` redirect | `C:\inetpub\apps\SolutionErp\Admin\` | static (no app pool .NET) | React build fe-admin |
+| `SolutionErp-User` | `*:443:user.huypham.vn` HTTPS + `*:80` redirect | `C:\inetpub\apps\SolutionErp\User\` | static | React build fe-user |
+
+**SPA web.config:** 2 FE có `URL Rewrite` rule:
+1. HTTP → HTTPS redirect (bắt buộc, CORS whitelist chỉ https)
+2. `/api/* → http://localhost:5443/api/*` (ARR reverse proxy)
+3. `/hubs/* → http://localhost:5443/hubs/*` (SignalR)
+4. React Router fallback: `/*` → `/index.html`
+
+## Quick commands
+
+### Restart 1 site
+
+```powershell
+# PowerShell as Admin
+Import-Module WebAdministration
+Stop-WebSite -Name "SolutionErp-Api"
+Start-WebSite -Name "SolutionErp-Api"
+
+# Hoặc recycle app pool (API out-of-process):
+Restart-WebAppPool -Name "SolutionErp-Api"
+
+# Check site status:
+Get-Website -Name "SolutionErp-*" | Format-Table Name, State, Bindings
+```
+
+### Xem log API
+
+```powershell
+# Serilog file rolling daily
+Get-Content "C:\inetpub\apps\SolutionErp\Api\Logs\log-$(Get-Date -Format 'yyyyMMdd').txt" -Tail 50
+
+# IIS log
+Get-Content "C:\inetpub\logs\LogFiles\W3SVC<ID>\u_ex$(Get-Date -Format 'yyMMdd').log" -Tail 30
+
+# Stdout log khi crash startup
+Get-Content "C:\inetpub\apps\SolutionErp\Api\Logs\stdout_*.log" -Tail 30
+```
+
+### Health check
+
+```powershell
+# Từ server
+curl http://localhost:5443/health/live
+curl http://localhost:5443/health/ready
+
+# Từ ngoài
+curl https://api.huypham.vn/health/ready
+```
+
+## Let's Encrypt cert — win-acme
+
+### Check trạng thái
+
+```powershell
+# Mở win-acme interactive
+& "C:\tools\win-acme\wacs.exe"
+# Menu > Manage renewals > list — xem 3 cert + next renew date
+
+# Hoặc file:
+Get-Content "C:\ProgramData\win-acme\Production\$(hostname)\Renewals\*.renewal.json"
+```
+
+### Cert hết hạn emergency
+
+```powershell
+# Force renew 1 cert
+& "C:\tools\win-acme\wacs.exe" --renew --force --id {renewal-id}
+
+# Full re-issue nếu renewal fail:
+& "C:\tools\win-acme\wacs.exe"  # interactive → 'N' create new
+# Chọn: HTTP validation, web root = site physical path, auto install IIS
+```
+
+**Gotcha:** Shared runner với VIETREPORT → win-acme HTTP challenge cần `.well-known/acme-challenge/` accessible qua HTTP (port 80). Rule HTTP→HTTPS redirect trong web.config PHẢI **exclude** path này:
+
+```xml
+<rule name="Redirect to HTTPS" stopProcessing="true">
+  <match url="(.*)" />
+  <conditions>
+    <add input="{HTTPS}" pattern="off" />
+    <add input="{REQUEST_URI}" pattern="^/\.well-known/" negate="true" />
+  </conditions>
+  <action type="Redirect" url="https://{HTTP_HOST}/{R:1}" />
+</rule>
+```
+
+## Gitea Actions runner (NSSM service)
+
+### Status
+
+```powershell
+# NSSM service name: gitea-runner (shared với VIETREPORT)
+Get-Service gitea-runner
+nssm status gitea-runner
+
+# Restart
+Restart-Service gitea-runner
+
+# Log
+Get-Content "C:\tools\gitea-runner\logs\act_runner.log" -Tail 50
+```
+
+### Token rotate (nếu runner disconnected)
+
+```powershell
+# Stop service
+Stop-Service gitea-runner
+
+# Re-register qua Gitea admin UI → Actions → Runners → get new registration token
+& "C:\tools\gitea-runner\act_runner.exe" register `
+    --instance https://git.baocaogiaoduc.vn `
+    --token <new-token> `
+    --no-interactive
+
+# Start lại
+Start-Service gitea-runner
+```
+
+## LibreOffice headless (PDF / docx converter)
+
+### Check install
+
+```powershell
+& "C:\Program Files\LibreOffice\program\soffice.exe" --version
+# → LibreOffice 25.8.6.x
+```
+
+### Test convert manual
+
+```powershell
+# Tạo temp dir isolated (mô phỏng per-request pattern của LibreOfficeDocumentConverter)
+$work = New-Item -ItemType Directory -Path "$env:TEMP\lo-test-$(Get-Random)"
+$userInst = "$work\userinst"
+
+& "C:\Program Files\LibreOffice\program\soffice.exe" `
+    --headless `
+    "-env:UserInstallation=file:///$($userInst.Replace('\', '/'))" `
+    --convert-to pdf `
+    --outdir $work `
+    "C:\path\to\test.docx"
+
+# Output: $work\test.pdf
+ls $work
+Remove-Item -Recurse -Force $work
+```
+
+### Prod fail patterns
+
+- **60s timeout** → PDF lớn (>100 page) có thể quá. Xem `LibreOfficeDocumentConverter` — tăng timeout nếu cần
+- **Locked font fallback** → Be Vietnam Pro missing → text render hỏng. Install font trên server
+- **Concurrent request lock** → mỗi request 1 `UserInstallation` dir riêng → tránh lock
+
+## Debug playbook — prod error
+
+### HTTP 500 all site
+
+Xem gotcha #25 (docs/gotchas.md):
+```powershell
+# Likely config lock:
+& "$env:SystemRoot\system32\inetsrv\appcmd.exe" list config -section:system.webServer/webSocket
+# → overrideMode="Deny" → fix:
+& "$env:SystemRoot\system32\inetsrv\appcmd.exe" unlock config -section:system.webServer/webSocket
+```
+
+### HTTP 502 Bad Gateway (Admin/User → API)
+
+```
+1. Check API up: curl http://localhost:5443/health/live
+   - Down → restart API site + check stdout log
+2. Check ARR enabled: IIS Manager > server level > Application Request Routing
+   - "Enable proxy" phải tick
+3. Check URL Rewrite rule fe web.config
+   - action type="Rewrite" url="http://localhost:5443/{R:0}"
+```
+
+### SignalR 401 (WebSocket connect fail)
+
+Xem gotcha #26:
+```
+1. FE console: check ?access_token= query có trong negotiate URL không
+2. BE log: JwtBearer OnMessageReceived có fire cho /hubs/* không
+3. IIS WebSocket module: Install-WindowsFeature Web-WebSockets (đã có)
+4. Section unlock: appcmd unlock config -section:system.webServer/webSocket
+```
+
+### Login "Network Error"
+
+Xem `docs/gotchas.md` CORS + HTTPS redirect:
+```
+1. User gõ http://admin.huypham.vn → không redirect → CORS block
+2. Fix: SPA web.config PHẢI có HTTP→HTTPS rule (đã có)
+3. Test: curl -I http://admin.huypham.vn → expect 301 Location: https://...
+```
+
+### DB connection fail
+
+```powershell
+# 1. SQL service up?
+Get-Service MSSQL* 
+
+# 2. TCP enabled?
+Import-Module SqlServer
+# Hoặc check registry:
+Get-ItemProperty "HKLM:\SOFTWARE\Microsoft\Microsoft SQL Server\MSSQL*.SQLEXPRESS\MSSQLServer\SuperSocketNetLib\Tcp"
+
+# 3. vrapp login OK?
+sqlcmd -S .\SQLEXPRESS -U vrapp -P <pw> -Q "SELECT DB_NAME()"
+# Expect: SolutionErp
+
+# 4. appsettings connection string (qua Gitea secrets)
+# Check C:\inetpub\apps\SolutionErp\Api\appsettings.Production.json có ConnectionStrings:DefaultConnection
+```
+
+## Deploy steps (CI/CD xanh)
+
+Gitea Actions workflow: `.gitea/workflows/deploy.yml`. Flow:
+
+```
+Push to main
+  → Runner pick up job
+  → checkout repo
+  → setup .NET 10 + Node 20
+  → npm ci (fe-admin + fe-user, rolldown native binding OK nếu fresh node_modules)
+  → dotnet restore + publish
+  → npm run build (fe-admin + fe-user)
+  → render appsettings.Production.json từ secrets (JWT_SECRET, DB_CONNECTION)
+  → stop app pool SolutionErp-Api
+  → xcopy publish → C:\inetpub\apps\SolutionErp\{Api,Admin,User}
+  → start app pool
+  → curl /health/ready → must be 200 trong 30s
+  → report status
+```
+
+### Manual deploy (emergency)
+
+```powershell
+# Local build
+dotnet publish src/Backend/SolutionErp.Api -c Release -o .\publish\api
+cd fe-admin; npm ci; npm run build; cd ..
+cd fe-user;  npm ci; npm run build; cd ..
+
+# Scp sang server (cần plink/pscp hoặc rsync)
+scp -r .\publish\api\*           user@server:C:/inetpub/apps/SolutionErp/Api/
+scp -r .\fe-admin\dist\*         user@server:C:/inetpub/apps/SolutionErp/Admin/
+scp -r .\fe-user\dist\*          user@server:C:/inetpub/apps/SolutionErp/User/
+
+# Trên server:
+Restart-WebAppPool -Name "SolutionErp-Api"
+curl http://localhost:5443/health/ready
+```
+
+## Backup + recovery
+
+```powershell
+# DB backup (script sẵn, chưa schedule):
+& "C:\inetpub\apps\SolutionErp\scripts\backup-sql.ps1"
+# Output: backup/SolutionErp_<ts>.bak (compressed + retention 30d)
+
+# Schedule daily 03:00:
+schtasks /create /tn "SolutionErp Backup" `
+    /tr "powershell -ExecutionPolicy Bypass -File C:\inetpub\apps\SolutionErp\scripts\backup-sql.ps1" `
+    /sc DAILY /st 03:00 /ru SYSTEM
+```
+
+Restore: xem `docs/guides/runbook.md`.
+
+## Rotate credentials (Phase 5.1 backlog)
+
+- [ ] SQL `sa` password (rotate)
+- [ ] SQL `vrapp` password (update Gitea secret `DB_CONNECTION` + appsettings.Production.json)
+- [ ] JWT secret (update Gitea secret `JWT_SECRET`, next deploy sẽ lan tỏa. Tất cả token cũ invalid)
+- [ ] Gitea runner registration token (re-register service)
+- [ ] Admin default `Admin@123456` (đổi qua `/system/users` admin UI ngay sau deploy)
+
+## Related
+
+- `docs/guides/deployment-iis.md` — first-time setup
+- `docs/guides/runbook.md` — operations guide chi tiết
+- `docs/guides/cicd.md` — CI/CD pipeline
+- `docs/gotchas.md` — #25 webSocket lock, #26 SignalR, #28 LibreOffice 404, #29 PS 5.1 UTF-16
+- `scripts/deploy-iis.ps1` · `scripts/backup-sql.ps1` · `scripts/install-libreoffice.ps1`
+- `.gitea/workflows/deploy.yml` — CI/CD definition
--- a/CLAUDE.md
+++ b/CLAUDE.md
@ -75,7 +75,7 @@ Kiến trúc: **.NET 10 Clean Architecture + 2 React FE (admin + user) + SQL Ser
 | [`docs/database/schema-diagram.md`](docs/database/schema-diagram.md) | ⭐ ERD + luồng DB + data flow 19 table |
 | [`docs/flows/README.md`](docs/flows/README.md) | Index 6 flow (auth, permission, contract, form, SLA) |
 | [`docs/gotchas.md`](docs/gotchas.md) | ⭐ 26 bẫy đã gặp — đọc trước khi debug tương tự |
-| [`.claude/skills/`](.claude/skills/README.md) | 3 skill: contract-workflow, form-engine, permission-matrix |
+| [`.claude/skills/`](.claude/skills/README.md) | 6 skill: contract-workflow, form-engine, permission-matrix, dependency-audit-erp, ef-core-migration, iis-deploy-runbook |
 | [`docs/guides/vps-setup.md`](docs/guides/vps-setup.md) | ⭐ Master runbook deploy VPS shared với VIETREPORT |

 ## ⚠️ Kết thúc session
--- a/docs/CLAUDE.md
+++ b/docs/CLAUDE.md
@ -74,7 +74,7 @@ SOLUTION_ERP/
 │   └── changelog/
 │       ├── migration-todos.md      Roadmap 5 phase
 │       └── sessions/               YYYY-MM-DD session logs
-├── .claude/skills/                 Skill library (contract-workflow, form-engine, ...)
+├── .claude/skills/                 6 skill: 3 domain (contract-workflow, form-engine, permission-matrix) + 3 ops (dependency-audit-erp, ef-core-migration, iis-deploy-runbook)
 ├── scripts/                        parse_forms.py, parse_workflow.py, seed, deploy
 ├── SolutionErp.slnx                Solution file
 ├── global.json                     .NET 10 SDK pin