fix(ci): exclude kustomization.yaml from kubectl apply

kustomization.yaml 是給 -k 用的，不能直接 apply

Co-Authored-By: Claude <noreply@anthropic.com>

.github/workflows/deploy-prod.yml

@@ -160,7 +160,12 @@ jobs:
           export KUBECONFIG=${{ env.KUBECONFIG }}
           export PATH=$HOME/bin:$PATH
           echo "📦 Applying K8s manifests..."
-          kubectl apply -f k8s/awoooi-prod/ --namespace=${{ env.K8S_NAMESPACE }}
+          # 排除 kustomization.yaml (那是給 -k 用的，不能直接 apply)
+          for f in k8s/awoooi-prod/*.yaml; do
+            if [[ "$(basename "$f")" != "kustomization.yaml" ]]; then
+              kubectl apply -f "$f" --namespace=${{ env.K8S_NAMESPACE }}
+            fi
+          done
 
       - name: Rollout Restart Deployments
         run: |