Enable console-managed Kubernetes zones

The Kubernetes config left blocklist.managed_zones empty, so the Zones page was read-only even though the pod has a writable persistent data volume. Configure a managed-zone directory on that volume so the console can create and update zone records; existing local_zones files remain operator-owned and read-only.

deploy/k8s/00-config.yaml

@@ -81,6 +81,7 @@ data:
     blocklist:
       enabled: true
       default_action: nxdomain
+      managed_zones: /var/lib/fancy-dns/managed-zones
       local_zones: [/etc/fancy-dns/zones/*.zone]
       lists:
         - name: haas