- 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
- Merge structural lint rules into oxlint.json and remove the second config file
- Add #tests/* path aliases and rewrite deep test helper imports
- Ban new deep parent-relative imports through the shared lint config
- Remove non-null assertions from copy, font export, MCP stdio, and plugin data tests
- Reuse shared assertion helpers for required fixtures, proxy nodes, and text tool output
- Enforce the non-null assertion ban for the newly cleaned test files
- Deduplicate plugin data and relaunch data during .fig parsing/export
- Unify shared plugin data into the pluginData storage path
- Refactor shadow rendering and harden CanvasKit font provider teardown
- Expand engine and renderer coverage
