Fix Kubernetes NodePort range (30000-32767)

- Frontend: nodePort 3000 → 30080
- Backend: nodePort 5001 → 30501, service port 5001 → 8080
- Keycloak: nodePort 8080 → 30808

Kubernetes requires NodePort to be in range 30000-32767.
The service port (internal) and targetPort (container) remain
unchanged for compatibility with existing configurations.

infra/k8s/base/backend-service.yaml

@@ -11,7 +11,7 @@ spec:
     app: workclub-api
   ports:
     - name: http
-    port: 5001
+      port: 8080
       targetPort: 8080
-    nodePort: 5001
+      nodePort: 30501
       protocol: TCP

infra/k8s/base/frontend-service.yaml

@@ -13,5 +13,5 @@ spec:
     - name: http
       port: 3000
       targetPort: 3000
-    nodePort: 3000
+      nodePort: 30080
       protocol: TCP

infra/k8s/base/keycloak-service.yaml

@@ -13,5 +13,5 @@ spec:
     - name: http
       port: 8080
       targetPort: 8080
-    nodePort: 8080
+      nodePort: 30808
       protocol: TCP