fix(neuron-prod): add PVC and volume mount for neuron-license SQLite data

The license server writes its database to /data/neuron-license.db.
The deployment had no volume, causing CrashLoopBackOff on first start.

servers/legion/k8s/neuron-technologies/prod/pvc.yaml

@@ -10,3 +10,16 @@ spec:
   resources:
     requests:
       storage: 10Gi
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: neuron-license-data
+  namespace: neuron-prod
+spec:
+  storageClassName: local-path
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 2Gi