REFACTOR(repo): restructure monitoring folder

- and add namespace resou...
- Remove argocd/, helm-values/, ingress/ subdirectories
- Move files to parent directory (argocd.yaml, helm-values.yaml,
  ingress.yaml)
- Update helm valueFiles paths in ArgoCD Applications
- Add namespace.yaml to all applications with Goldilocks labels
- Update destination namespaces to match folder names
- Update kustomization.yaml files to reference new structure

goldilocks/kustomization.yaml

@@ -3,7 +3,7 @@ kind: Kustomization
 
 resources:
   # ArgoCD Application 리소스는 monitoring/kustomization.yaml에서 관리
-  # - argocd/goldilocks.yaml
+  # - argocd.yaml
 
-  # Goldilocks Dashboard Ingress
-  - ingress/goldilocks-dashboard-ingress.yaml
+  - namespace.yaml
+  - ingress.yaml