Media buttons on HID remotes (USB/Bluetooth keyboards, common on Android
TV) are delivered as key events to the focused window instead of the
MediaSession, so they only worked while the app was backgrounded. A
global handler now routes play/pause, next/previous, stop, and
fast-forward/rewind to the live music session anywhere in the app and
consumes the key burst, so a press can neither leak to Android's
fallback MediaSession dispatch nor start a focused library item. Same
lifecycle as the OS media session; video playback never coexists with it
because claiming video disposes the music session first.
close#1948
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