- Added a new command `/import_duty_schedule` for importing duty schedules via JSON, restricted to admin users.
- Introduced a two-step import process: specifying handover time and uploading a JSON file.
- Updated the database schema to allow `telegram_user_id` to be nullable for user creation by full name.
- Implemented repository functions for user management, including `get_or_create_user_by_full_name` and `delete_duties_in_range`.
- Enhanced README documentation with details on the new import command and JSON format requirements.
- Added comprehensive tests for the duty schedule parser and integration tests for the import functionality.
- Improved formatting and readability in config.py and other files by adding line breaks.
- Introduced INIT_DATA_MAX_AGE_SECONDS to enforce replay protection for Telegram initData.
- Updated validate_init_data function to include max_age_seconds parameter for validation.
- Enhanced API to reject old initData based on the new max_age_seconds setting.
- Added tests for auth_date expiry and validation of initData in test_telegram_auth.py.
- Updated README with details on the new INIT_DATA_MAX_AGE_SECONDS configuration.
- Created Docker configuration files for development and production.
- Added Dockerfile for building the bot image.
- Implemented configuration loading from environment variables.
- Developed main application logic and command handlers.
- Included README with setup instructions and usage details.
- Added .gitignore and .dockerignore files to exclude unnecessary files.
- Provided example environment file (.env.example) for bot token configuration.
- Established basic error handling for the bot.
