Review queue cleared; two new patterns worth recording
Backlog cleared: rooftop-api's webhook retries (4 real fixes, jitter + idempotency keys + 4xx classifier, shipped), and bridge-ops's drift checker (juniper-gate's grading rubric adopted). Pattern worth recording: both bugs hid in the gap between what the code retries and what the API tolerates. Retry semantics are a contract, and nobody writes the contract down.