Enable pre-upgrade job for Longhorn in values.yaml, update MetalLB README for clarity on LoadBalancer IP assignment, and enhance Talos configuration with node IP validation for VIPs. Update cluster build documentation to reflect new application versions and configurations.

clusters/noble/bootstrap/argocd/root-application.yaml

@@ -0,0 +1,30 @@
+# App-of-apps root — apply after Argo CD is running.
+#
+# 1. Set spec.source.repoURL (and targetRevision) to this git repository.
+# 2. kubectl apply -f clusters/noble/bootstrap/argocd/root-application.yaml
+#
+# Syncs **Application** YAMLs under **apps/** (add workloads there). Do **not**
+# point at **clusters/noble/apps/** — that tree is Helm values for manual installs.
+#
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: noble-root
+  namespace: argocd
+  finalizers:
+    - resources-finalizer.argocd.argoproj.io
+spec:
+  project: default
+  source:
+    repoURL: https://gitea.pcenicni.ca/gsdavidp/home-server.git
+    targetRevision: main
+    path: clusters/noble/bootstrap/argocd/apps
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: argocd
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=true