fix(kubernetes): disable CDI populator for blank DataVolumes

Add cdi.kubevirt.io/storage.usePopulator: "false" annotation to
the dataVolumeTemplate to prevent CDI volume population flow.

The populator mechanism creates an intermediate "prime" PVC and
rebinds the PV, which causes ClaimMisbound errors with LINSTOR CSI.
The legacy import path writes directly to the target PVC.

Assisted-By: Claude <noreply@anthropic.com>
Signed-off-by: Arsolitt <arsolitt@gmail.com>

packages/apps/kubernetes/templates/cluster.yaml

@@ -23,6 +23,8 @@ spec:
       dataVolumeTemplates:
       - metadata:
           name: disk-kubelet
+          annotations:
+            cdi.kubevirt.io/storage.usePopulator: "false"
         spec:
           source:
             blank: {}