- Implemented GET and POST endpoints for managing tags in `src/app/api/admin/tags/route.ts`.
- Created PUT and DELETE endpoints for timeline events in `src/app/api/admin/timeline/[id]/route.ts`.
- Added GET and POST endpoints for timeline management in `src/app/api/admin/timeline/route.ts`.
- Developed file upload functionality with validation in `src/app/api/admin/upload/route.ts`.
- Introduced PUT and DELETE endpoints for managing uses items in `src/app/api/admin/uses/[id]/route.ts`.
- Added GET and POST endpoints for uses management in `src/app/api/admin/uses/route.ts`.
feat: enhance admin UI components for better user experience
- Created `AdminSidebar` component for navigation in `src/components/admin/AdminSidebar.tsx`.
- Developed `ImageUpload` component for handling image uploads in `src/components/admin/ImageUpload.tsx`.
- Implemented `RichTextEditor` component for rich text editing in `src/components/admin/RichTextEditor.tsx`.
- Added `TagsInput` component for managing tags in `src/components/admin/TagsInput.tsx`.
- Created `TiptapRenderer` component for rendering HTML content in `src/components/writing/TiptapRenderer.tsx`.
feat: establish database interaction layer with Prisma
- Added database connection and session management in `src/lib/db.ts` and `src/lib/auth.ts`.
- Implemented CRUD operations for posts, products, projects, settings, timeline events, and uses items in respective files under `src/lib/db/`.
- Introduced utility functions for formatting dates and slug generation in `src/lib/types.ts`.
