feat: add direct PostgreSQL and ACK deployment support

deploy/ack/service.yaml

@@ -0,0 +1,28 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: zhinian-web
+  namespace: zhinian
+spec:
+  type: ClusterIP
+  selector:
+    app.kubernetes.io/name: zhinian
+    app.kubernetes.io/component: web
+  ports:
+    - name: http
+      port: 3000
+      targetPort: 3000
+---
+# Deliberately selectorless: the public Ingress routes internal API paths here,
+# where there are no endpoints, instead of forwarding them to Web.
+apiVersion: v1
+kind: Service
+metadata:
+  name: zhinian-public-deny
+  namespace: zhinian
+spec:
+  type: ClusterIP
+  ports:
+    - name: deny
+      port: 80
+      targetPort: 8080