FEAT(goldilocks): add vpa and goldilocks

- for resource optimization
- Add VPA (Vertical Pod Autoscaler) for automatic resource
  recommendation
- Add Goldilocks dashboard for visualizing VPA recommendations
- Update kustomization.yaml to include both applications

vpa/kustomization.yaml

@@ -0,0 +1,6 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+  # ArgoCD Application 리소스는 infrastructure/kustomization.yaml에서 관리
+  # - argocd/vpa.yaml