* feat: rewind to track start on previous when past 8 seconds
Adds MprisController.previousOrRewind() which rewinds the current track
to position 0 if more than 8 seconds in (with canSeek check), and falls
back to previous() otherwise — matching traditional media player behaviour.
All previous() call sites across Media.qml, MediaPlayerTab.qml,
MediaOverviewCard.qml, LockScreenContent.qml and DMSShellIPC.qml
are updated to use the new shared function.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix: poll position in MprisController for previousOrRewind accuracy
Without a polling timer, activePlayer.position is never updated in
contexts that don't display a seekbar (e.g. the DankBar widget), causing
the position > 8 check in previousOrRewind() to always see 0 and fall
through to previous() instead of rewinding.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>