Auto-authenticate as guest on HF Spaces using HF_SPACE env var

Fix auth issues: detect HF Spaces by port, add POST support to guest route

Skip auth entirely on HF Spaces to fix mobile and incognito issues

Fix iframe redirect loops with HF-specific detection and SameSite cookies

Restore retry logic and SameSite=none cookies to fix redirect loops

Add security headers to allow Hugging Face iframe embedding

Update auth config for iframe compatibility with SameSite=none cookies

Add NEXTAUTH_URL to fix redirect loop

Add AUTH_TRUST_HOST env var to fix authentication on Hugging Face

Fix Dockerfile: create public directory instead of copying

Add standalone output configuration for Docker deployment

Fix TypeScript error: use valid error type 'offline:chat'

Allow lockfile updates during build

Add missing @ai-sdk/openai dependency

Fix Dockerfile: use existing node user with UID 1000

Deploy AI chatbot to Hugging Face Spaces

initial commit