Get a deployment's automatic backup schedule

Answers even when nothing has been configured: no stored row means the DEFAULTS — daily, keeping 3 — not "off". is_default says which of the two you are looking at.

last_error, last_error_at and consecutive_failures describe scheduled runs that could not start (storage unreachable, TLS, credentials): a short reason with credentials removed, when it happened and how many runs in a row failed that way. They are null, null and 0 once a run starts. A failed run also appears in GET /backups as a failed job, and the retry waits 15 minutes, doubling per consecutive failure up to 6 hours. A server whose agent has not been in contact for two hours gets no new job: the round is recorded the same way, and a queued job that never started is closed as failed when its job token expires.