- 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