The clock renders through the existing formatClockTime helper driven by
MediaQuery.alwaysUse24HourFormatOf, so it follows the OS 12/24-hour
setting instead of introducing an app preference. It re-arms a one-shot
timer onto each wall-clock minute boundary rather than polling, and
resyncs on resume because a suspended process runs no timers.
The player header is shared by the mobile and desktop/TV controls, so one
insertion point covers every form factor: the player is fullscreen
everywhere, so it never has an OS clock to defer to. Home is the
exception and only gets one on TV, where a leanback app hides the system
clock; a phone status bar and a desktop menu bar already show the time.
edde746