REFACTOR(repo): restructure infra folder structure

- Remove argocd/, helm-values/, ingress/ subdirectories
- Move files to parent directory with standardized names
- Add namespace.yaml to all apps with Goldilocks labels
- Preserve vault/ subdirectories (falco, velero)
- Update main kustomization.yaml to reference argocd.yaml files directly
- Comment out argocd.yaml in each app's kustomization.yaml to prevent
  circular reference

Applications restructured:
- cert-manager (2 ArgoCD apps)
- external-secrets
- reloader
- vault (2 ArgoCD apps)
- velero (2 ArgoCD apps)
- falco
- cnpg
- haproxy
- metallb
- vpa
- argocd

vpa/helm-values.yaml

@@ -0,0 +1,28 @@
+# VPA Helm Values
+# Reference: https://github.com/FairwindsOps/charts/tree/master/stable/vpa
+
+# Recommender - recommends resource requests based on historical usage
+recommender:
+  enabled: true
+  replicaCount: 1
+
+  resources:
+    limits:
+      cpu: null
+      memory: 1Gi
+    requests:
+      cpu: 50m
+      memory: 512Mi
+
+# Updater - applies recommended resource requests to pods
+# Disabled because we're using updateMode: Off (recommendations only)
+updater:
+  enabled: false
+
+# Admission Controller - injects resource requests into new pods
+# Disabled because we're using updateMode: Off (recommendations only)
+admissionController:
+  enabled: false
+
+# Optional: Configure default VPA behavior
+# metrics-server should be installed in the cluster