Core Improvements:
- Add detailed function-level documentation
- Fix session state initialization issues
- Implement consistent error handling
- Add comprehensive logging system
- Standardize code formatting

Documentation:
- Add type hints and return values
- Document side effects and requirements
- Add usage examples
- Improve class and module documentation
- Add process flow documentation

Structure:
- Reorganize utility functions
- Group related functionality
- Improve file organization
- Standardize import ordering
- Clean up unused code

Testing:
- Fix state initialization bugs
- Improve error messages
- Add validation checks
- Enhance logging coverage