- Add a reactive useColorModel API for format state, channel edits, Reka bridges, and slider presentation
- Move the app color panel and ColorInputRoot onto the shared model and remove superseded picker helpers
- Document the public contract and cover precise RGB plus OkHCL intent round trips
- 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
