A head unit is a large screen sitting an arm's length further away than a phone,
and Plezy drew phone-sized controls on it: the primary button measured 8.3 mm
against the 64 dp a car needs. The whole surface is now scaled - 1.35 by default,
adjustable in Appearance - by giving the app a smaller logical viewport and
scaling the result back, so text, spacing and touch targets grow together instead
of a font size being nudged in isolation.
The scale sits above the messenger and the root Scaffold so snackbars and dialogs
are scaled too, and insets are divided back into the scaled space so a system bar
still reserves its physical size. A scaled surface is also a short one: the setup
screen's fixed offsets and the now-playing transport are laid out to survive it,
and a mistyped scale in a hand-edited settings file is clamped rather than
failing startup.
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.
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.
Un-gates music libraries; adds CardShape.square plumbing (circular
artists), artists/albums/tracks browse groupings with per-grouping
sorts, audio playlists tab, artist + album detail screens with dpad
track rows, music context-menu actions, and a stub MusicPlaybackService
seam for the upcoming engine.
edde746