- Add GitHub OAuth flow with /comfy/auth/github and /comfy/auth/callback
- User allowlist via GITHUB_ALLOWED_USERS environment variable
- CSRF protection with state parameter
- Keep same dark mode login page design (saved screenshot)
- Strip Origin header from proxied requests (fixes ComfyUI 403s)
- Add manual CORS headers to proxy responses
Env vars: GITHUB_CLIENT_ID, GITHUB_CLIENT_SECRET, GITHUB_ALLOWED_USERS
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>