Improvements
2- Domain-link responses now flag environment variables that still embed the old IP:port base URL, preventing mixed-content issues for apps like Flarum.
- Flarum template notes now cover no-SMTP sign-up behavior and the FORUM_URL setting after domain linking.
Bug Fixes
2- Deleting a container with remove volumes now also removes its named volumes (with a sharing guard, so a volume still used by another container is never touched); previously they silently accumulated on disk.
- Port resolution on domain-link now accepts the container-side port as well as the host-side port.