- Completed migration of tag management to server actions by creating `actions/tags.ts` for CRUD operations.
- Removed obsolete API routes for tags (`/api/tags`, `/api/tags/[id]`) and updated related components to utilize new server actions.
- Updated `TagForm` and `useTags` hook to handle tag creation, updating, and deletion through server actions, improving performance and simplifying client-side logic.
- Cleaned up `tags-client.ts` by removing unused types and methods, focusing on validation only.
- Marked related TODO items as complete in `TODO.md`.