- 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
- 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
- Move fig-roundtrip.test.ts into focused import, export, roundtrip, and heavy fixture files
- Add shared fig fixture helpers for fixture parsing and valid node type checks
- Preserve the original 51 passing and 8 skipped fig tests under BUN_HEAVY_TESTS=false
- Extend scoped non-null assertion enforcement to the fig test folder
