refactor: zero lead-in, split time ruler + tempo track

- leadInMargin=0, time 0 at left edge, only 8px PADDING_LEFT
- TimelineRuler simplified: time-only labels, 40px height
- TempoTrackLane re-added to layout below time ruler (40px)
- WaveformLane PADDING_LEFT=8/zoom, leadIn=0
This commit is contained in:
2026-07-25 10:48:45 +07:00
parent f299b93372
commit b410de8855
3 changed files with 55 additions and 99 deletions
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