infra: add PVCs for GPU test pipeline (cargo-target-cuda-test + test-data)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

infra/k8s/argo/cargo-target-cuda-test-pvc.yaml

@@ -0,0 +1,16 @@
+# infra/k8s/argo/cargo-target-cuda-test-pvc.yaml
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: cargo-target-cuda-test
+  namespace: foxhunt
+  labels:
+    app.kubernetes.io/name: cargo-target
+    app.kubernetes.io/component: ci-cache
+    app.kubernetes.io/part-of: foxhunt
+spec:
+  accessModes: [ReadWriteOnce]
+  storageClassName: scw-bssd-retain
+  resources:
+    requests:
+      storage: 30Gi

infra/k8s/training/test-data-pvc.yaml

@@ -0,0 +1,15 @@
+# infra/k8s/training/test-data-pvc.yaml
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: test-data-pvc
+  namespace: foxhunt
+  labels:
+    app.kubernetes.io/name: test-data
+    app.kubernetes.io/part-of: foxhunt
+spec:
+  accessModes: [ReadWriteOnce]
+  storageClassName: scw-bssd
+  resources:
+    requests:
+      storage: 10Gi