REFACTOR(argocd): monitoring apps

- to self-manage ArgoCD Applications
- Each app now includes its own argocd.yaml in kustomization.yaml
- Main monitoring/kustomization.yaml references app folders instead of
  individual argocd.yaml files
- Better separation of concerns - each app is self-contained and
  independently managed

goldilocks/kustomization.yaml

@@ -2,8 +2,6 @@ apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 
 resources:
-  # ArgoCD Application 리소스는 monitoring/kustomization.yaml에서 관리
-  # - argocd.yaml
-
+  - argocd.yaml
   - namespace.yaml
   - ingress.yaml