feat: deploy siriusdevops.com main site to GKE

Add siriusdevops-site manifests:
- Deployment + ClusterIP Service (nginx:alpine, port 80)
- HTTPRoute for siriusdevops.com via external-http-gateway
- Kustomization overlay wiring

apps/base/customer1/http-route.yaml

@@ -13,3 +13,18 @@ spec:
       - name: n8n-service  # The name of your Kubernetes Service
         port: 80
 
+---
+apiVersion: gateway.networking.k8s.io/v1
+kind: HTTPRoute
+metadata:
+  name: siriusdevops-route
+  namespace: customer1
+spec:
+  parentRefs:
+  - name: external-http-gateway
+  hostnames:
+  - "siriusdevops.com"
+  rules:
+    - backendRefs:
+      - name: siriusdevops-site-svc
+        port: 80

apps/base/customer1/kustomization.yaml

@@ -5,3 +5,4 @@ resources:
   - namespace.yaml
   - http-route.yaml
   - service.yaml
+  - siriusdevops-site

apps/base/customer1/siriusdevops-site/deployment.yaml

@@ -0,0 +1,77 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: siriusdevops-site
+  namespace: customer1
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: siriusdevops-site
+  template:
+    metadata:
+      labels:
+        app: siriusdevops-site
+    spec:
+      containers:
+      - name: nginx
+        image: ghcr.io/sirius0xdev/siriusdevops:latest
+        imagePullPolicy: Always
+        ports:
+        - containerPort: 80
+          protocol: TCP
+        resources:
+          requests:
+            cpu: 10m
+            memory: 64Mi
+          limits:
+            cpu: 50m
+            memory: 128Mi
+
+        startupProbe:
+          httpGet:
+            path: /
+            port: 80
+            scheme: HTTP
+          initialDelaySeconds: 15
+          periodSeconds: 5
+          timeoutSeconds: 5
+          failureThreshold: 30
+          successThreshold: 1
+
+        readinessProbe:
+          httpGet:
+            path: /
+            port: 80
+            scheme: HTTP
+          initialDelaySeconds: 3
+          periodSeconds: 5
+          timeoutSeconds: 5
+          failureThreshold: 3
+          successThreshold: 1
+
+        livenessProbe:
+          httpGet:
+            path: /
+            port: 80
+            scheme: HTTP
+          initialDelaySeconds: 40
+          periodSeconds: 10
+          timeoutSeconds: 5
+          failureThreshold: 3
+          successThreshold: 1
+
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: siriusdevops-site-svc
+  namespace: customer1
+spec:
+  selector:
+    app: siriusdevops-site
+  ports:
+    - protocol: TCP
+      port: 80
+      targetPort: 80
+  type: ClusterIP

apps/base/customer1/siriusdevops-site/kustomization.yaml

@@ -0,0 +1,4 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - deployment.yaml