Add VictoriaMetrics observability stack + sync catalog for monitoring test

- VM stack 10 charts: victoria-metrics-cluster/auth, victoria-logs-cluster,
  victoria-metrics-agent/alert, opentelemetry-collector, kube-state-metrics,
  prometheus-node-exporter, alertmanager, perses (JWT/OIDC, Infisical-ready)
- ArgoCD ApplicationSet (syncWave) + per-chart dip-values overlays
- doc/victoria-metrics-architecture.md, define-chart-resources updates
- includes pending working-tree changes (mlflow, kubeflow, apisix, CLAUDE.md)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

manifests/helm/perses/0.21.0/templates/tests/test.yaml

@@ -0,0 +1,28 @@
+{{- if .Values.testFramework.enabled -}}
+apiVersion: v1
+kind: Pod
+metadata: 
+  name: {{ .Release.Name }}-test
+  namespace: {{ .Release.Namespace }}
+  labels: 
+    type: helm-chart-test
+  annotations:
+    "helm.sh/hook": test
+    "helm.sh/hook-delete-policy": "before-hook-creation,hook-succeeded"
+spec:
+  serviceAccountName: {{ .Release.Name }}-test
+  containers: 
+    - name: bats-test
+      image: "{{ .Values.testFramework.image.registry}}/{{ .Values.testFramework.image.repository}}:{{ .Values.testFramework.image.tag }}"
+      imagePullPolicy: {{ .Values.testFramework.image.pullPolicy }}
+      command: ["bats", "-t", "/tests/run.sh"]
+      volumeMounts: 
+        - name: tests
+          mountPath: /tests
+          readOnly: true
+  volumes: 
+    - name: tests
+      configMap: 
+        name: {{ .Release.Name }}-test
+  restartPolicy: Never
+{{- end -}}