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

node-exporter/helm-values.yaml

@@ -0,0 +1,33 @@
+# Prometheus Node Exporter Helm Values
+# Chart: https://github.com/prometheus-community/helm-charts/tree/main/charts/prometheus-node-exporter
+
+fullnameOverride: node-exporter
+
+hostNetwork: true
+hostPID: true
+
+resources:
+  requests:
+    cpu: 10m
+    memory: 50Mi
+
+service:
+  type: ClusterIP
+  clusterIP: None
+
+# Prometheus ServiceMonitor 설정
+prometheus:
+  monitor:
+    enabled: true
+    additionalLabels:
+      release: prometheus
+    namespace: monitoring
+    attachMetadata:
+      node: true
+    relabelings:
+      - targetLabel: cluster
+        replacement: "mayne-cluster"
+
+tolerations:
+  - effect: NoSchedule
+    operator: Exists