- Gaps show the default pose: a disabled three.js action leaves the skeleton
frozen on its last frame, so evaluateAt now resets any character with no clip
under the playhead to its bind (T) pose via Skeleton.pose() (skeletons cached
per character). Fixes blank space after a clip holding the clip's last pose.
- Animation drags now show the shared DragGhost tilt card with the clip
thumbnail: the drawer's native-DnD handlers drive dragItem/dragPosition/
assetDraggingUnder and suppress the browser's default drag image, matching
object/character pickup motion.