Add traefik.enable + Host/entrypoints/tls/certresolver/service labels to the
prod override, driven by MANGA_API_HOST / PROXY_NETWORK / TRAEFIK_ENTRYPOINT /
TRAEFIK_CERTRESOLVER env vars (documented in .env.example).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>