fix: Fix kubectl apply syntax for multiple files

kubectl apply -f does not accept multiple files as separate arguments on the same line. Changed to apply each manifest individually.

🤖 Generated with Claude Code

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

.gitea/workflows/build-deploy.yml

@@ -77,7 +77,10 @@ jobs:
 
       - name: Deploy to Kubernetes
         run: |
-          kubectl apply -f k8s/namespace.yaml k8s/deployment.yaml k8s/service.yaml k8s/ingress.yaml
+          kubectl apply -f k8s/namespace.yaml
+          kubectl apply -f k8s/deployment.yaml
+          kubectl apply -f k8s/service.yaml
+          kubectl apply -f k8s/ingress.yaml
 
       - name: Update deployment and verify
         run: |