Add self-contained API simulators lab with Compose and Helm.

Ship Proxmox, oVirt, VMware, and OpenStack behind one Postgres stack,
Makefile helpers (up/clean/helm up|down/push), and a Helm chart with
namespace, Let's Encrypt ingresses, migrate inits, and skip-if-seeded jobs.

charts/api-simulators-lab/templates/NOTES.txt

@@ -0,0 +1,28 @@
+1. Namespace: {{ include "lab.namespace" . }}
+
+2. Point DNS (or /etc/hosts for local-only) at the Ingress controller:
+{{- range $name, $ing := .Values.ingresses }}
+{{- if $ing.enabled }}
+   {{ $ing.host }}
+{{- end }}
+{{- end }}
+
+3. Open simulators (TLS via cert-manager / Let's Encrypt when enabled):
+{{- range $name, $ing := .Values.ingresses }}
+{{- if $ing.enabled }}
+{{- $https := or $ing.tls $.Values.certManager.enabled }}
+   http{{ if $https }}s{{ end }}://{{ $ing.host }}{{ $ing.path | default "/" }}
+{{- end }}
+{{- end }}
+
+{{- if .Values.certManager.enabled }}
+
+cert-manager ClusterIssuer: {{ include "lab.clusterIssuer" . }}
+{{- if .Values.certManager.createClusterIssuer }}
+  (created by this chart; email={{ .Values.certManager.email }})
+{{- else }}
+  (expected to already exist in the cluster)
+{{- end }}
+{{- end }}
+
+Configure namespace / hosts / TLS under `.Values.namespace`, `.Values.ingresses`, `.Values.certManager`.