Apache ProxyPass targets host port 8069; update compose, CI, CORS defaults, deployment docs, and production .env files for https://sinbad2.ujaen.es/generadorexamenesllm/.
This adds nginx dual-path routing, forwarded proxy headers, Uvicorn proxy-headers, production security settings, and deployment docs for https://sinbad2.ujaen.es/generadorexamenesllm/.