Focus chrome was implemented twice, once in the focusable wrapper and once
in the focus builders; both now go through FocusChrome. TvColorPicker's
channel row was a copy of TvNumberSpinner and is now that widget in compact
density.
Also trims unused helpers and fields and simplifies the Jellyfin browse
paths.
- Merge SeerrMovieDetails/SeerrTvDetails into one SeerrDetails model and
route both detail endpoints through a single request helper.
- Replace the three parallel tracker session/store/rebind-generation
triples in TrackersProvider with a _TrackerSlot record plus one _rebind
path.
- Fold the three JellyfinSequentialLauncher entry points onto a shared
_launchLocalQueue helper that owns loading, abort, shuffle and publish;
each caller now supplies only its fetch.
Introduces shared seams for paginated views, D-pad reorder, media control
routing, async singletons and the device method channel, then points the
open-coded copies at them.
Also removes unused models and duplicated provider/server plumbing, folds
the twice-implemented artifact store in the server, and factors the
repeated Flutter toolchain prologue in CI into a composite action.
Drops dead code across services, models, utils and widgets, including the
connection auth service, which had no implementer, and the Live TV DVR
provisioning models, which had no caller.
Tests that only covered deleted behaviour are removed or trimmed. No
behaviour change.
edde746