- backend: HOST env (default 127.0.0.1, dev-safe; 0.0.0.0 in container) - frontend: VITE_BASE drives base/assetsDir/manifest for portal embedding - backward compatible: no env => identical to previous behavior
- backend: HOST env (default 127.0.0.1, dev-safe; 0.0.0.0 in container) - frontend: VITE_BASE drives base/assetsDir/manifest for portal embedding - backward compatible: no env => identical to previous behavior