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/secret.yaml

@@ -0,0 +1,16 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ include "lab.fullname" . }}
+  namespace: {{ include "lab.namespace" . }}
+  labels:
+    {{- include "lab.labels" . | nindent 4 }}
+type: Opaque
+stringData:
+  ticketSigningKey: {{ .Values.ticketSigningKey | quote }}
+  postgres-password: {{ .Values.postgres.auth.password | quote }}
+{{- range $name, $sim := .Values.simulators }}
+{{- if and $sim.enabled $sim.db }}
+  {{ $name }}-db-password: {{ $sim.db.password | quote }}
+{{- end }}
+{{- end }}