## Summary
- allow dragging a single image asset from the Assets panel onto the
canvas
- insert an Image component with its source bound to the dragged asset
in one undoable mutation
- preserve asset-folder drops and canceled drags
- build the Builder once in CI and reuse the compact build artifact
across all E2E shards
## E2E timing
Recent CI showed shard test runtimes of roughly 101–145 seconds, while
every shard also repeated a roughly two-minute Builder build. The four
shards are already reasonably balanced, so a fifth shard would not
address the primary bottleneck.
The shared artifact is about 30 MB uncompressed and roughly 5 MB
compressed because checked-out public assets are excluded. This should
return individual shard jobs to the 2–3 minute range.
## Validation
- 45 focused unit tests
- image asset to canvas E2E using the prebuilt-artifact path
- image asset to folder regression E2E
- Builder typecheck
- lint
- package-boundary validation
- workflow YAML validation
- shell syntax validation
Oleg Isonen
ef94d85ccf
