Backport from monorepo PR #310 (fix/april-pass):
1. WebGPU renderer race on Canvas remount
Cache the in-flight WebGPURenderer promise per canvas element so
concurrent configure() calls from R3F's useLayoutEffect await the
same init() instead of creating duplicate renderers. Fixes
intermittent 'resolve target size does not match' errors when
navigating between projects and home.
2. Duplicate item loses its scale
Add scale to the field set in useDraftNode.commit() so duplicated
items preserve their original scale instead of falling back to
[1,1,1].
Co-authored-by: Pascal <open@pascal.app>
2b588cd30f