Live cluster had a Longhorn PVC `signalcontrol-data` mounted at /app/data
since 2026-04-14, but the bluejay-infra git manifest never declared it. As a
result, when ArgoCD recreated the Deployment from git (after deletion to fix
an unrelated selector-label mismatch caught during cert-manager recovery),
the new pod started without /app/data and crashed with `SQLite Error 14:
unable to open database file 'data/signalcontrol.db'`.
Bring git in line with reality: declare the PVC, mount it, and switch the
Deployment to `strategy.type: Recreate` (RWO PVC blocks rolling updates per
existing memory feedback_k8s_rwo_rollout.md).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>