AI Implementation feature(869): Admin Area Blog and Blog Page (#58)

docs/architecture/backend-modules.md

@@ -3,7 +3,7 @@ type: architecture
 title: Backend Module Map
 description: NestJS modules, controllers, services, and how they are wired together.
 tags: [architecture, backend, nestjs, modules]
-timestamp: 2026-07-23T00:10:00Z
+timestamp: 2026-07-23T10:12:24Z
 ---
 
 # Module Map
@@ -29,7 +29,7 @@ also registers two global providers:
 | `SystemModule`   | `backend/src/modules/system/system.module.ts` | `SystemController` (`/api/v1/bootstrap`, `/event/status`, SSE streams) + `SystemService`.       |
 | `AdminModule`    | `backend/src/modules/admin/admin.module.ts`   | Four controllers (`AdminController` for `/api/v1/admin/users*`, `AdminGeneralController` for `/api/v1/admin/general/*`, `AdminCategoriesController` for `/api/v1/admin/categories*`, `AdminChallengesController` for `/api/v1/admin/challenges*`) plus their services (`AdminService`, `AdminGeneralService`, `AdminCategoriesService`, `AdminChallengesService`, `ChallengeFilesService`). Gated by `AdminGuard` + `@Roles('admin')`. Imports `TypeOrmModule.forFeature([UserEntity, CategoryEntity, ChallengeEntity, ChallengeFileEntity, SolveEntity])`, `AuthModule`, `UsersModule`, `SettingsModule`, and `CommonModule` (for `SseHubService`, `ThemeLoaderService`). |
 | `UploadsModule`  | `backend/src/modules/uploads/uploads.module.ts` | `UploadsController` (`/api/v1/uploads/*`). Admin-only multipart.                            |
-| `BlogModule`     | `backend/src/modules/blog/blog.module.ts`     | `BlogController` (`GET /api/v1/blog/posts`) + `BlogService` (lists `status='published'` rows). |
+| `BlogModule`     | `backend/src/modules/blog/blog.module.ts`     | `BlogController`/`BlogService` expose published posts at `GET /api/v1/blog/posts`; `AdminBlogController`/`AdminBlogService` provide guarded CRUD at `/api/v1/admin/blog/posts` using `BlogPostEntity`. |
 | `ChallengesModule` | `backend/src/modules/challenges/challenges.module.ts` | `ChallengesController` (`/api/v1/challenges/{board,status,:id,:id/solves}`) + `ChallengesEventsController` (authenticated SSE `/api/v1/events`) + `ChallengesService` (board, detail, submit, scoring util). |
 | `FrontendModule` | `backend/src/frontend/frontend.module.ts`     | Registers `SpaFallbackMiddleware` and the uploads static helper.                              |
 
@@ -47,6 +47,7 @@ also registers two global providers:
 | `SystemController`     | `/api/v1`               | Mixed (bootstrap/event/scoreboard/settings are public; `events/status` SSE is JWT-protected) | `backend/src/modules/system/system.controller.ts` |
 | `UploadsController`    | `/api/v1/uploads`       | Admin only   | `backend/src/modules/uploads/uploads.controller.ts`          |
 | `BlogController`       | `/api/v1/blog`          | Public       | `backend/src/modules/blog/blog.controller.ts`               |
+| `AdminBlogController`  | `/api/v1/admin/blog/posts` | Admin only | `backend/src/modules/blog/admin-blog.controller.ts` |
 | `ChallengesController` | `/api/v1/challenges`    | Authenticated | `backend/src/modules/challenges/challenges.controller.ts` |
 | `ChallengesEventsController` | `/api/v1/events` | Authenticated (SSE) | `backend/src/modules/challenges/events.controller.ts` |
 
@@ -89,3 +90,4 @@ also registers two global providers:
 - [System Overview](/architecture/overview.md)
 - [Key Files Index](/architecture/key-files.md)
 - [REST API Overview](/api/rest-overview.md)
+- [Blog API](/api/blog.md)