Document Docker setup, nginx proxy_buffering for AI streaming, Host header fix, and verification steps; link from README and DOCKER.
Co-authored-by: Cursor <cursoragent@cursor.com>
Include Dockerfile, docker-compose on port 3130, npm mirror config, deploy scripts, and DOCKER.md; keep PM2 docs as fallback.
Co-authored-by: Cursor <cursoragent@cursor.com>