The unit runner only collected files that imported node:test, silently
excluding ~20 bare-assert files (several were failing on main, unnoticed).
Collect every *.test.{mjs,js}; known-broken files live in an explicit
QUARANTINE map that is reported on every run (never silently skipped) with
a stale-entry check.
Co-Authored-By: Claude Opus 4.8 <[email protected]>