Enhance position management in Streamlit app by implementing position limits for DraftKings and FanDuel. Update styling for tabs and add functionality to validate player combinations based on eligible positions. Refactor position selection logic for improved user experience.

Refactor data loading logic in Streamlit app by replacing expander with a container for improved layout. Simplify data reset functionality and ensure session state is cleared effectively.

Refactor stack analysis logic in Streamlit app for improved readability and maintainability. Consolidate repeated code blocks for handling different stack sizes and ensure consistent data processing before displaying results. Add functionality to export generated tables as CSV.

Implement initial Streamlit application with MongoDB integration, including player statistics analysis and stack generation features. Add configuration files for deployment and specify required packages in requirements.txt.