Close WP-0039: metered worker identity live with OpenBao-custodied tokens

Migration 0010 was applied (WP-0038 columns, first production deployment of
WP-0038), and the API was redeployed on activity-core:wp0039-20260923. The loop
claims with 200. The metered token authenticates as
rein-aharness-metered@railiance01, and paired with the loop identity it is
rejected with 403. The manifest declares the live API image.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 151606@bnt-lap001
Assistant-Session: 3c0a4ad5-bb8b-4bf7-b9f0-fa5f29204e48

k8s/railiance/20-runtime.yaml

@@ -1332,7 +1332,7 @@ spec:
     spec:
       containers:
         - name: api
-          image: activity-core:fi-publication-20260914
+          image: activity-core:wp0039-20260923
           imagePullPolicy: Never
           command: ["uvicorn", "activity_core.api:app", "--host", "0.0.0.0", "--port", "8010"]
           ports: