Fixes: 1) Fix missing import for `send_message` moved to method scope in Telegram message handler; 2) Correct Swagger UI socket connection setting to `False`.
Extra: 1) Minor code cleanup and reformatting in viewsets and settings.
Fixes: 1) Replace generic serializers with context-specific implementations in schema definitions.
Extra: 1) Minor code cleanup and reorganization for improved readability and maintainability; 2) Add comments for new serializers.
Fixes: 1) Replaced legacy `TELEGRAM_API_TOKEN` configuration with `TELEGRAM_TOKEN`; 2) Incorporated anti-spam checks for user messages to prevent abuse.
Extra: Refactored websocket consumers by integrating Telegram support and enhancing thread-assignment workflows; improved logging and API consistency; minor cleanup and deprecations.
Fixes: 1) Corrected `admin.py` imports for consistency and model alignment;
Extra: Refactored `choices.py` for reusable enums; restructured `models.py` for clarity and maintainability.
