- Fix layer drag freezing when keyframes exist (auto-create keyframe at current time)
- Fix timeline/keyframe alignment (add 60px margin for prop-name)
- Fix keyframe dragging in timeline
- Fix Mask initialization (start with white/visible)
- Fix layer render order in JS (background first, then foregrounds)
- Add Theatre.js style timeline with expandable layers and property rows
- Add editable params area with interpolated values
- Center toolbar buttons
- Update criticalCSS in timeline.js to match Vue styles
wallen0322
cdf0c29c38