Add an optional admin-triggered key rotation on pg-boss that re-encrypts
the whole encrypted-column corpus to the active key, reusing the same
column registry as the command-line tool (which stays the canonical path).
POST /api/admin/encryption/rotate enqueues a singleton run and is gated by
cookie-only admin plus a fresh second factor. The run is idempotent
(rows already on the active key are skipped), active-key-only, and never
adds or drops a key — the env key map stays operator-owned, so a key drop
remains a deliberate redeploy. It fails closed per row and reports totals
into the audit trail the status view reads.
Add a read-only admin Encryption section that surfaces what the rotation
tooling computes: per encrypted-column rows-per-key-id, legacy-key row
counts, and overall rotation progress, plus a 'safe to drop the legacy
key' state once every column sits on the active key. GET
/api/admin/encryption/status drives it and returns only key ids and
counts — never key material. A shared scan over the canonical encrypted-
column registry backs both this view and the rotation run. Cookie-only
admin.