DRY pass follow-up (note #1026). All 13 admin-store actions repeated the same
lastError-capture/rethrow wrapper; the 6 Tier-A maintenance actions additionally
repeated the dry_run POST shape.
- _guard(fn): one copy of the lastError=null / try / catch(set lastError; rethrow)
wrapper, used by all 13 actions.
- _dryRunPost(url, {dryRun, ...extra}): the dry_run POST shape on top of _guard,
used by the 6 maintenance actions. reconcile maps sourceId -> source_id.
Public exports + every action signature unchanged (object-opts for Tier-A,
positional for cascade/bulk/tag ops), so no card/view changes. Behavior identical.
Added frontend spec (the admin store had none): _dryRunPost endpoint+body+default,
sourceId->source_id mapping, and _guard capturing lastError + clearing on success.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
