Add new infra architecture

infrastructure/platform/mail/mailu/kustomization.yaml

@@ -0,0 +1,24 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+namespace: bakery-ia
+
+resources:
+  - mailu-configmap.yaml
+  - mailu-secrets.yaml
+  - mailu-pvc.yaml
+  - mailu-deployment.yaml
+  - mailu-services.yaml
+  - mailu-antispam.yaml
+  - mailu-networkpolicy.yaml
+  # NOTE: mailu-ingress.yaml removed - ingress is now centralized in platform/networking
+  # NOTE: mailu-replacement.yaml removed - using official Mailu stack
+  # NOTE: email-config.yaml removed - configuration consolidated into mailu-configmap.yaml
+  # NOTE: Network policy kept here for self-contained module (could be moved to global security)
+  # NOTE: Mailu uses shared Redis (redis-service) with database 15 - no separate Redis needed
+
+labels:
+- includeSelectors: true
+  pairs:
+    app: mailu
+    platform: mail
+    managed-by: kustomize