Implement Proxy Server for Brave Search Integration

[RBV801]

We should implement a proxy server to handle the Brave Search API requests. This will help us:

1. Keep API keys secure
2. Handle CORS issues
3. Implement rate limiting
4. Add caching if needed

Proposed Implementation

Create a simple Express.js server that will:

• Accept requests from our frontend
• Forward them to Brave Search API
• Return the results to our frontend

The proxy server should be implemented in a separate repository (proxy-server2) and should include:

• Express.js server setup
• Environment variables for API keys
• Basic error handling
• CORS configuration

This will serve as a proof of concept (POC) that we can later enhance with additional features.