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/apisix/2.14.0/charts/apisix-ingress-controller/Chart.yaml

@@ -0,0 +1,18 @@
+annotations:
+  artifacthub.io/prerelease: "true"
+apiVersion: v2
+appVersion: 2.0.1
+description: Apache APISIX Ingress Controller for Kubernetes
+icon: https://apache.org/logos/res/apisix/apisix.png
+keywords:
+- ingress
+- apisix
+- nginx
+- crd
+maintainers:
+- name: tao12345666333
+name: apisix-ingress-controller
+sources:
+- https://github.com/apache/apisix-helm-chart
+type: application
+version: 1.1.1