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

prometheus/argocd.yaml

@@ -0,0 +1,50 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: prometheus
+  namespace: argocd
+  finalizers:
+    - resources-finalizer.argocd.argoproj.io
+spec:
+  project: default
+
+  sources:
+    # Helm chart from external repository
+    - repoURL: https://prometheus-community.github.io/helm-charts
+      chart: kube-prometheus-stack
+      targetRevision: 80.0.0
+      helm:
+        valueFiles:
+          - $values/prometheus/helm-values.yaml
+    # Values file from Git repository
+    - repoURL: https://gitea0213.kro.kr/bluemayne/monitoring.git
+      targetRevision: main
+      ref: values
+    # Vault secrets from Git repository
+    - repoURL: https://gitea0213.kro.kr/bluemayne/monitoring.git
+      targetRevision: main
+      path: prometheus
+
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: prometheus
+
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+      allowEmpty: false
+
+    syncOptions:
+      - CreateNamespace=true
+      - PrunePropagationPolicy=foreground
+      - PruneLast=true
+
+    retry:
+      limit: 5
+      backoff:
+        duration: 5s
+        factor: 2
+        maxDuration: 3m
+
+  revisionHistoryLimit: 10