Enhance app.py to implement a Gradio interface for the RegRadar AI Regulatory Compliance Assistant, featuring a chatbot, example queries, and a tool information panel. Refactor UIHandler to streamline chat processing and improve regulatory query handling. Update web_tools.py to modularize crawling and searching functionalities, enhancing code readability and maintainability.

Refactor app.py to streamline the RegRadar application, consolidating regulatory compliance features into a cohesive UI. Enhance user interaction with improved query processing, tool detection, and memory integration. Update main function to initialize and launch the application effectively.