Update .gitignore to include additional ignored files and directories for various tools and environments. Enhance README with detailed setup instructions, API key configuration, and usage guidelines for running RegRadar locally. Refactor web_tools.py to simplify crawl instructions for regulatory updates.

Update .gitignore to include __pycache__ and enhance app.py with improved regulatory query processing, tool detection, and user interaction features. Refactor streaming chat functionality and add memory search capabilities. Update requirements.txt to include openai-agents and gradio dependencies.

Refactor regulatory monitoring workflow into a chat-based interface with caching and improved error handling. Update OpenAI API key usage and adjust regulatory crawling logic. Change Gradio app structure for enhanced user interaction. Update README with SDK version change.