- Introduced `ActiveNodeStrategy` type to define strategies for updating `activeNodeId` when a message is deleted.
- Updated `DeleteMessageResponse` to include `newActiveNodeId` for tracking changes to the active node after deletion.
- Modified the `DELETE` endpoint to accept `activeNodeStrategy` as a query parameter, allowing for flexible handling of active node updates.
- Enhanced the `delete` method in `MessageService` to implement the new strategies, ensuring consistent behavior during message deletions.
- Added `setAsActive` property to `CreateMessageDto` for controlling active node status in topics.
- Updated `messageTable` and `topicTable` schemas to include foreign key constraints and improved handling of active node references.
- Refactored message and topic service methods to utilize `.returning()` for better data retrieval after inserts and updates.
- Implemented hard delete functionality for messages and topics, replacing soft delete logic to ensure data integrity.
- Updated MessageStatus type to include 'pending' as a new state, reflecting the message processing lifecycle.
- Modified CreateMessageDto and UpdateMessageDto interfaces to utilize the updated MessageStatus type for improved clarity and consistency in message status management.
