- Added `Sidebar` component with responsive layout for chat navigation.
- Implemented `ChatStore` for managing chat data and fetching user chats.
- Integrated JSON:API `ChatCollection` for consistent backend responses.
- Added `GetUserChatsAction` to retrieve paginated user chats.
- Refactored frontend to separate `ChatStore` and `MessageStore` for improved state management.
- Updated styles, components, and tests for seamless chat interactions.
- Removed `SocialMediaService` and migrated core post generation logic to `GeneratePostService`.
- Added `GetAllChatMessagesAction` for fetching chat history.
- Introduced `MessageDto`, `MessageResource`, and `MessageCollection` for consistent backend API responses.
- Updated frontend state and services to support JSON:API-compliant chat messages and history retrieval.
- Improved typings and casting for chat message data.
Implement Authentication States, show logout options in auth store and services.
Make DB and controllers to make messages grouped by chats.
Refactor backend code to use DTO.
