Find managed instances that should be dead but aren't: state running/pending,
a real TTL deadline, and now beyond that deadline + grace. Instances with no
TTL are never orphans (nothing promised they'd self-terminate). graceMs
overrides the default for testing/tuning.
Find managed instances that should be dead but aren't: state running/pending, a real TTL deadline, and now beyond that deadline + grace. Instances with no TTL are never orphans (nothing promised they'd self-terminate).
graceMsoverrides the default for testing/tuning.