At startup, before the first check, Run removes from the loaded state
the domain, hostname and certificate entries of names no longer in
DNSWATCHER_TARGETS, takes those names off each port entry's list of
names and removes a port entry left with none, so the dashboard,
/api/v1/status and the startup notification count only configured
names. A configured domain's own records, saved as a hostname entry
under its name, are kept. Nothing is notified. Each port check, next to
the removal of stale port entries, now also removes the certificate
entries for an address a name no longer resolves to, except while none
of its nameservers answered, as port entries already were.
Model: opus-5-5
