- Changed the required Python version from >=3.13 to >=3.10.
- Added 'exceptiongroup' package with version 1.2.2 and its dependencies.
- Included 'typing-extensions' as a dependency for compatibility with Python versions < 3.11 in multiple packages.
- Updated the version of 'telegram-mcp' to 1.5.0 and changed its source to editable.
- Updated .env.example with new Telegram API credentials and session string options.
- Expanded .gitignore to exclude session files and configuration.
- Refactored main.py to support string session authentication and added new functions for contact and message management.
- Updated README.md to reflect new features, installation instructions, and usage examples.
- Added python-dotenv as a dependency in pyproject.toml for environment variable management.
