Fix vercel.json schema validation error

Configure Vercel for frontend-only deployment (ignore Python backend)

Simplify: Deploy frontend only to Vercel, backend to Render/Railway

fix: remove outdated @vercel/python@3.1.0 builder which hardcodes pip3.9

fix: loosen dependency versions and revert invalid vercel.json config to allow python 3.14 wheel resolution

fix: pin Python 3.12 in vercel.json to fix faiss-cpu compatibility

Downgrade to @vercel/python@3.1.0 for Python 3.12 support

Specify Python 3.12 in vercel.json build env

Fix Python runtime version format for Vercel

Update vercel.json for monorepo with Python functions

Add Python runtime configuration to vercel.json

Simplify vercel.json - configure via Vercel dashboard instead

Remove custom installCommand - let Vercel handle Python dependencies automatically

Fix Vercel deployment: Use proper serverless handler and streamline dependencies

Fix Python runtime version for Vercel

Fix Vercel build configuration for output directory

Deploy to Vercel: Add serverless functions, frontend, and deployment docs