feat(RAILIANCE-WP-0027): prepare operator-only OpenBao access

Assistant: codex
Assistant-Model: gpt-5.6-sol
Assistant-Session: 01a02b90-83bf-75c2-81c8-aa705414e4d4

helm/openbao-public-ingress.rollback.yaml

@@ -0,0 +1,33 @@
+# Rollback-only public listener for an attended RMASTER-WP-0020-T09 reversal.
+# This file is never applied by the ordinary platform deployment path.
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: openbao-ui-gateway
+  namespace: openbao
+  labels:
+    app.kubernetes.io/name: openbao-ui-gateway
+    app.kubernetes.io/part-of: railiance-platform
+    railiance-platform/component: secrets
+  annotations:
+    cert-manager.io/cluster-issuer: letsencrypt-prod
+    traefik.ingress.kubernetes.io/router.middlewares: >-
+      openbao-openbao-rate-limit@kubernetescrd,
+      openbao-openbao-hsts@kubernetescrd
+spec:
+  ingressClassName: traefik
+  tls:
+    - secretName: bao-tls
+      hosts:
+        - bao.coulomb.social
+  rules:
+    - host: bao.coulomb.social
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: openbao-ui-gateway
+                port:
+                  number: 8080