The forge container used the host's resolvers, where the swarm domain has
no records — so every outbound call to a swarm name failed with "no such
host". Forgejo's webhook deliveries died there: knowledge, config-pr and
vcs-activity alike, which is why the swarm-controller's receiver has never
logged a verified delivery and knowledge propagation has been running on
its hourly fallback.
An earlier fix taught the container authelia's name with a `networking.hosts`
entry. That covered one name and left the rest, so use the resolver every
other service container already uses and drop the override — hive-matrix
records why a second answer that can disagree with the first is worse than
none.
Closes#3824