Two bugs caused dragged shelves to snap to a weird position on commit:
1. `MoveRegistryNodeTool` wrote `useLiveTransforms.set(id, { ..., rotation: 0 })`,
so during the drag `ParametricNodeRenderer` applied `<group rotation={[0,0,0]}>`
and the shelf visually un-rotated. On commit the live transform cleared
and the renderer re-read the node's true rotation — the snap-back read
as "reverts to a weird position." Now we capture `originalRotationY`
from the node at mount time and forward it on every set.
2. `<GeometrySystem>` reset `group.position.set(0,0,0)` /
`group.rotation.set(0,0,0)` after every rebuild. That was carry-over
from legacy per-kind systems that didn't bind `position` on the group.
`ParametricNodeRenderer` now drives the transform via JSX prop, and
the reset clobbered it — React doesn't necessarily re-render on a
rebuild tick, so R3F never re-applied the prop and the registered
`<group>` stayed at the origin. Removed the reset; builders are
expected to emit local-space children.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
