fix(docker): use ENTRYPOINT for docker-entrypoint.sh; ensure newlines separate instructions

fix(docker): replace infinite health-poll loop with entrypoint script with 30s timeout

fix(docker): replace unused BACKEND_URL with ALLOWED_ORIGINS env var for CORS

fix: expose port 8000 for FastAPI backend in Dockerfile

fix: replace sleep 3 race condition with health check loop before starting Gradio

chore: force HF Spaces rebuild

chore: force HF Spaces rebuild

fix: add HF Spaces metadata and fix Dockerfile entrypoint

fix: rename DocerkFile to Dockerfile