PASS crash.reclaim: Claim survives abrupt exit and a new worker replaces the expired owner
PASS crash.fence: Old worker completion rejected; replacement completion accepted
PASS http.delivery: Four workers deliver all 80 accepted jobs
PASS http.deduplication: 120 requests cause exactly 80 receiver business effects
PASS http.attempts: Attempt history contains the expected first failures and successful retries
PASS api.authorization: Missing administrator token is rejected
PASS api.boundary: Foreign Host and Origin requests are rejected
PASS api.storage: Storage failure returns retryable HTTP 503 without accepting an event
PASS restore.at-least-once: Restoring an older queue snapshot redelivers without duplicate receiver effect
PASS restore.identity: Restored acceptance still recognizes the same event identity
PASS restore.corruption: Corrupt snapshot rejected before destination creation
PASS restore.no-overwrite: Existing restore directory remains untouched
PASS integrity.final: Queue integrity and foreign-key checks pass
PASS theory.retry-budget: Declared four-attempt timeout/backoff calculation totals 15 seconds
PASS backup.schedule: Finite scheduler creates two checked snapshots and stops
{"checks": 15, "passed": 15, "elapsed_seconds": 1.761}
