- Switch editor state from reactive() to shallowReactive() to avoid deep
Proxy wrapping of Set, arrays, and nested objects
- Replace Vue watch on renderVersion with useRafFn dirty-flag loop that
polls for changes without going through Vue's watcher scheduler
- Coalesce wheel events: accumulate deltaX/deltaY/zoomDelta between
frames and flush once per rAF instead of per event
- Coalesce Safari gesturechange events: buffer the latest scale/position
and apply once per rAF
- Fix Set.delete() on shallowReactive state to use replace pattern