k8s/messaging: add kafka kmsvc and temporal workflows

- Kafka 3-broker cluster (RF=3, min-ISR=2)
- kmsvc SQS-like API on Kafka
- Redis dedup (standalone, can extend to HA)
- Temporal workflow orchestration (Cassandra backend)

k8s/sqs/charts/management-service/templates/ingress-grpc.yaml

@@ -0,0 +1,27 @@
+{{- if and .Values.ingress.enabled .Values.ingress.grpcEnabled }}
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: management-service-grpc
+  namespace: {{ .Values.namespace }}
+  annotations:
+    cert-manager.io/cluster-issuer: {{ .Values.ingress.clusterIssuer }}
+    nginx.ingress.kubernetes.io/backend-protocol: "GRPC"
+spec:
+  ingressClassName: {{ .Values.ingress.className }}
+  tls:
+    - hosts:
+        - {{ .Values.ingress.host }}
+      secretName: {{ .Values.ingress.tlsSecretName }}
+  rules:
+    - host: {{ .Values.ingress.host }}
+      http:
+        paths:
+          - path: {{ .Values.ingress.grpcPathPrefix }}
+            pathType: Prefix
+            backend:
+              service:
+                name: management-service
+                port:
+                  number: {{ .Values.grpcPort }}
+{{- end }}