- Replace remaining empty mock callbacks with explicit undefined returns
- Remove the last no-empty-function test exceptions
- Validate check and affected renderer/text tests
- Remove remaining test non-null assertions and delete the broad test override
- Add explicit guards for canvas, design panel, auto-layout, SVG, Kiwi, hit-test, scene graph, text editor, and clipboard tests
- Validate check plus affected engine and E2E coverage
- Remove stale imports and unused locals from split engine and e2e tests
- Drop the targeted no-unused-vars test allowances
- Keep check and affected test suites warning-free
- Configure oxfmt custom import groups for workspace, app, package, and test aliases
- Keep type imports grouped with their matching source category instead of one global tail group
- Expand the format script to cover formatter config, Vite files, and scripts
- Move top-level engine and e2e prefixed test files under domain folders
- Update fixture path helpers after moving render and pen tests
- Add lint coverage to prevent new top-level prefixed test files
- Refresh testing docs for the new fig and layout paths
