b6b73fdd0c
Why the seek bar appeared frozen: it was reading PlaybackState.updatePosition, which audio_service only updates on event transitions (play/pause/buffer/seek). Between events it sits unchanged, so the bar only jumped at intervals. Expose just_audio's positionStream (~200ms cadence) from the audio handler, wrap as positionProvider, and read that in both the mini bar and the full player. Now the bar advances continuously while playing. While we're here: spread the full player's vertical layout per operator — gap to seek 20→32, seek-to-primary 8→24, primary-to- secondary 16→24, plus 24 below to match. The full player had visible slack above the controls; this redistributes it.