The contract test's child did a live git ls-remote + curl to github.com on
every bun run test (update_check config now gates it off); the headless
test gets a fresh GSTACK_HOME so the suppression is actually exercised; a
new OV6 test drives the script three times to pin ack-at-emit and gate
sequencing; hermetic seeding covers the config-keyed privacy gate; the
EVALS_HERMETIC=0 debug seeding reaches marker parity.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>