- Added `ContentsRepository` as a dependency to `CommentsService` and updated tests for mock setup.
- Adjusted import order in relevant files to align with project standards.
- Added `markAsRead` and `countUnreadMessages` mocks to `MessagesService` tests.
- Included enriched comment retrieval and WebSocket notification validation in `CommentsService` tests.
- Updated dependency injection to include `EventsGateway` in `CommentsService` tests.
- Added tests for comment liking (`like` and `unlike` methods).
- Improved `findAllByContentId` tests to cover enriched comment data (likes count, isLiked, and user avatar URL resolution).
- Mocked new dependencies (`CommentLikesRepository` and `S3Service`) in `CommentsService` unit tests.
- Added comprehensive unit tests for `MessagesService`, `CommentsService`, `EventsGateway`, and enhancements in `UsersService`.
- Ensured proper mocking and test coverage for newly introduced dependencies like `EventsGateway` and `RBACService`.
