Package-scoped Bun validation and reporting

Run bun typecheck from every affected OpenCode package directory, never invoke tsc directly, and run tests only from their owning package; the repository root intentionally blocks tests. Follow the user-prescribed command scope and order exactly. In validation-only work, do not edit or format files, mutate VCS, start services, or add unrequested checks, including prohibited generated checks. Report each command’s exact exit code, duration, test/file/assertion totals, failures, warnings, and notable expected logs, plus aggregate totals and explicitly skipped commands.