Mirror the Plex player split (plexPlayerHooks.ts / plexPlayerControls.tsx). The shell
keeps owning the shared refs and passes them into each hook; the once-bound keyboard
handler + layer-stack registration stay in the shell (they orchestrate every cluster).
Behaviour-preserving code-motion — PlayerModal 1332 -> 890 lines.
New lib/playerModalHooks.ts:
- useYtVolume (per-account wheel/arrow volume, on shared playerVolume.ts)
- useNativeControlsYield (iframe-focus overlay yield)
- useYtBigView (F-maximise + our true-fullscreen; YT-specific, not Plex's useFullscreen)
- useYtProgress (player create + resume + 5s checkpoint + auto-watch + auto-advance)
New components/playerModalControls.tsx: PlayerTransportControls (moved as-is) + the
AutoMode/LoopMode types.
Self-E2E (localdev): play a feed video -> plays; transport bar (Auto/Loop); wheel volume
persists ({"volume":100}); F maximises + docked bar; exit big view; Close destroys the
player. Gate green: typecheck, knip, eslint (0 err), prettier, 247 vitest.
Noted a pre-existing bug (kept byte-identical here, flagged separately): the native-yield
effect removes a "blur-sm" listener but adds "blur" — the blur listener leaks.
