The scan omitted six files the config itself cites, so jsdelivr.net,
api.github.com and image.tmdb.org were listed as system-only while no scanned
source referenced them; changing those hosts would have fallen through to the
base config and its user certificate authorities undetected.
Also assert the reverse direction, so a domain no scanned source produces
fails instead of silently losing its guard.
Scope user-installed CA trust to the user-entered server hosts that need it
and pin the hard-coded first-party hosts to system anchors. The base config
applied user CAs to every host, including plex.tv token exchange and the
OAuth proxy.
edde746