The filter worked but forgot itself twice over: leaving Local Library
reset it, and so did closing the app. The first one is not a bug in the
view, it is what this port does — navigating away DESTROYS the view
(project_qt_nav_eager_tabs), so a `property var filter: ({})` cannot
outlive a trip to Discover.
Both follow from one move: the funnel lives on the BRIDGE, mirrored into
the shared ui_prefs.json. The bridge outlives the view, and the file
outlives the process, so one property buys both kinds of persistence.
`setFilter()` is the only writer, so a mutator cannot change the funnel
and forget to persist it, and the view re-seeds from a Connections on
the qproperty rather than only at construction — a republish has to
reach a view that is already open.
The saved funnel is pruned where the source GATES are published, not
somewhere else, so the two can never disagree: a restored `jellyfin`
tick with no Jellyfin configured would match zero rows while the chip
that clears it is hidden by the same gate — an empty grid with a badge
counting a filter the user cannot see. Only the media-server keys are
pruned; local/offline/plex are always meaningful words.
Verified: ticked Jellyfin, went to Discover and back (badge and grid
held), restarted the process (held), pressed Clear (ui_prefs went to
{}). The prune is reasoned, not exercised — both servers are configured
on this box, so no gate is off to test it against.
cc