Add GitOps stack for abrban.com with Gitea Actions CI/CD.

Harbor in-cluster builds via Kaniko, ArgoCD auto-sync, and production Helm values for abrban.com domains.

Co-authored-by: Cursor <cursoragent@cursor.com>

gitops/k3s/registries.yaml

@@ -0,0 +1,15 @@
+# k3s containerd registry config — apply on each node at /etc/rancher/k3s/registries.yaml
+# Proxy-cache only works through harbor-core (not harbor-registry or Traefik /v2/ alone).
+#
+# Apply: ./scripts/apply-k3s-registries.sh
+
+mirrors:
+  registry.abrban.com:
+    endpoint:
+      - http://harbor-core.cloudhost.svc.cluster.local  # use ClusterIP on single-node (see script)
+
+configs:
+  registry.abrban.com:
+    auth:
+      username: harbor_registry_user
+      password: REPLACE_WITH_REGISTRY_CREDENTIAL_PASSWORD