Discovered Docker apps now use the same buildAppUrl logic as
integrations when a base host is set, instead of using the raw
Docker socket URL (e.g. http://container:5432).
Extracts shared buildUrl helper and adds buildAppUrl that derives
a slug from the container name. Also passes publishedPort through
the DiscoveredApp type so host:port mode works correctly.
Thomas Camlong
7c0653672a