- Split builtin lowering into focused API owners and keep module dispatch separate.
- Share byte conversion, receiver checks, and filesystem option parsing; remove redundant forwarding and clarify names.
- Preserve compiler output and diagnostics, with import boundaries enforced by the code-quality checks.
- Enforce oxlint and oxfmt for owned JavaScript and TypeScript with independent CI checks.
- Preserve compiler import boundaries and protected fixtures while cleaning up lint findings.
- Standardize source formatting and validate import, fixture, and embedded-source protections.