- useEditorSetup() / useEditorSetupWithClear() in tests/e2e/fixtures.ts
- Migrated 17 specs to shared fixture, removing ~300 lines of boilerplate
- Moved getSelectedNode/getSelectedNodes to shared store helpers
- Replaced inline getSelectedNode in 4 specs with shared import
- Test duplication: 329 → 308 clones (10.12% → 9.08%)
Paste now targets the selected frame/group/component/section instead of
always placing nodes on the page root, matching Figma's behavior:
- Single container selected: paste as child
- Non-container child selected: paste as sibling in its parent
- Entered container (double-click): paste inside it
- Nothing or multiple nodes selected: paste on the page
Also applies to image paste via placeImageFiles.
Fixes#79
