Found while building the VPS replica clusters (Phase 2): all three
CNPG clusters' backup.barmanObjectStore blocks only configure continuous
WAL archiving. CNPG's bootstrap.recovery needs at least one real Backup
object in the object store before it has anything to restore -
'no target backup found', confirmed live against pg-authentik. This gap
was systemic (gitlab has it too, not fixed here - out of scope for
tonight, no VPS standby depends on it).
immediate: true fires one backup right away in addition to the daily
01:00 schedule, to unblock the in-progress VPS restore now rather than
waiting up to 24h for the first scheduled run.
