A CORS Mismatch That Broke DocMind AI on a Fresh Netlify Deploy

A CORS mismatch caused a Netlify-hosted frontend to fail when communicating with a FastAPI backend after a domain change. The issue was a domain mismatch between the frontend and backend's CORS configuration. The fix was a one-line addition to the backend's CORS configuration to allow the new domain. This highlights the importance of double-checking CORS configuration when deploying to new domains.