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/README.md.gotmpl

@@ -0,0 +1,39 @@
+## Apache APISIX for Kubernetes
+
+Apache APISIX is a dynamic, real-time, high-performance API gateway.
+
+APISIX provides rich traffic management features such as load balancing, dynamic upstream, canary release, circuit breaking, authentication, observability, and more.
+
+You can use Apache APISIX to handle traditional north-south traffic, as well as east-west traffic between services. It can also be used as a [k8s ingress controller](https://github.com/apache/apisix-ingress-controller/).
+
+This chart bootstraps all the components needed to run Apache APISIX on a Kubernetes Cluster using [Helm](https://helm.sh).
+
+## Prerequisites
+
+* Kubernetes v1.14+
+* Helm v3+
+
+## Install
+
+To install the chart with the release name `my-apisix`:
+
+```sh
+helm repo add apisix https://apache.github.io/apisix-helm-chart
+helm repo update
+
+helm install [RELEASE_NAME] apisix/apisix --namespace ingress-apisix --create-namespace
+```
+
+## Uninstall
+
+ To uninstall/delete a Helm release `my-apisix`:
+
+ ```sh
+helm delete [RELEASE_NAME] --namespace ingress-apisix
+ ```
+
+The command removes all the Kubernetes components associated with the chart and deletes the release.
+
+## Parameters
+
+{{ template "chart.valuesSection" . }}