Complete EMAIL-WP-0004 transactional invitation mail delivery.

Ship the railiance01 deploy package (OpenBao/ESO custody, NetworkPolicy,
probes), provider failure classification and suppression, T04 unit and live
proof, and non-secret NK-WP-0024 hand-back evidence. Workplan finished.

deploy/k8s/railiance/clustersecretstore.yaml.template

@@ -0,0 +1,30 @@
+# Template copy of the railiance-platform add-on store. Prefer applying from:
+#   ~/railiance-platform/argocd/platform-addons/openbao-secretstore/openbao-email-connect.clustersecretstore.yaml
+#
+# Do not apply until CCR-2026-0010 is approved and Secret
+# external-secrets/openbao-email-connect-eso-token exists
+# (./openbao-eso-token-apply.sh).
+---
+apiVersion: external-secrets.io/v1beta1
+kind: ClusterSecretStore
+metadata:
+  name: openbao-email-connect
+  labels:
+    app.kubernetes.io/part-of: railiance-gitops
+    railiance-platform/component: external-secrets
+    app.kubernetes.io/name: email-connect
+spec:
+  provider:
+    vault:
+      # In-cluster OpenBao on railiance01 (not the public bao.coulomb.social UI).
+      server: http://openbao.openbao.svc:8200
+      path: platform
+      version: v2
+      auth:
+        tokenSecretRef:
+          name: openbao-email-connect-eso-token
+          namespace: external-secrets
+          key: token
+  conditions:
+    - namespaces:
+        - email-connect