test-foundation.sh and test-discord.sh ran a nested node --test that would
exit 0 on failure under a parent runner. Both clear the variable now, and
each has a check that fails the suite if it comes back. Darkwing wrote it,
Filbert approved it (e464be6c). Nine suites green on an index export.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Rocko-authored, Filbert-reviewed inspector (r6 manifest
a4a44930...) with full review/build/verdict evidence under
docs/plans/reviews. 43/0 selftests, oracle zero-disagreement,
foundation checker PASS. Owner A9 acceptance recorded separately.