- Copy Flask v3.1 HTML templates (index.html, login.html) to backend/templates/
- Add Jinja2 support to FastAPI main.py
- Update all JavaScript fetch() calls to use /api/* endpoints
- Add JWT authentication to all requests (Authorization: Bearer token)
- Implement automatic token refresh on 401 errors
- Store JWT tokens in localStorage
Benefits:
- 100% identical UI to Flask v3.1 (proven, working design)
- Gold gradient, Montserrat font, all animations preserved
- FastAPI backend (Redis sessions, JWT auth, async)
- No React rewrite needed
- All features work immediately
UI now matches Flask exactly while using modern FastAPI backend.
Co-Authored-By: Claude Sonnet 4.5 (1M context) <noreply@anthropic.com>
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