- Added `moderator` role to `User` type for improved role assignment flexibility.
- Introduced `updateAdmin` method in user and content services to handle partial admin-specific updates.
- Enhanced `Content` type with `categoryId` and `iconUrl` to support richer categorization.
Introduce `OptionalAuthGuard` to allow conditional authentication for routes. Update `AuthModule` to include `AuthGuard`, `OptionalAuthGuard`, and `RolesGuard` in providers and exports for broader reuse.
feat(app): integrate `AdminModule` into app module
Add `AdminModule` to the app's main module to enable administration functionalities.
feat(users): enhance user profiles with bio and avatar fields
Extend `UpdateUserDto` to include optional `bio` and `avatarUrl` fields for better user customization.
feat(categories): add functionality to count all categories
Implement `countAll` method in `CategoriesRepository` to fetch the total number of categories using raw SQL counting.
Added UsersModule to manage user-related operations. Includes UsersService for CRUD operations, consent updates, and 2FA handling. Implemented UsersController with endpoints for public profiles, account management, and admin user listing. Integrated with CryptoService and database schemas.
