feat(devcontainer): add k8s pod template for DevPod

Mounts dev-home PVC (50Gi) and training-data PVC (read-only).
Targets gpu-dev node pool. Resource requests: 4 CPU / 16Gi,
limits: 14 CPU / 56Gi.

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

.devcontainer/pod-template.yaml

@@ -0,0 +1,41 @@
+# DevPod pod template — merged with DevPod's generated pod spec
+# Ref: https://github.com/loft-sh/devpod-provider-kubernetes
+apiVersion: v1
+kind: Pod
+metadata:
+  labels:
+    app.kubernetes.io/name: devpod
+    app.kubernetes.io/part-of: foxhunt
+    app.kubernetes.io/component: dev-environment
+spec:
+  nodeSelector:
+    k8s.scaleway.com/pool-name: gpu-dev
+  containers:
+    - name: devpod
+      resources:
+        requests:
+          cpu: "4000m"
+          memory: "16Gi"
+        limits:
+          cpu: "14000m"
+          memory: "56Gi"
+      volumeMounts:
+        - name: dev-home
+          mountPath: /home/dev
+        - name: training-data
+          mountPath: /data/training
+          readOnly: true
+  initContainers:
+    - name: init-home
+      image: busybox:latest
+      command: ["sh", "-c", "chown -R 1000:1000 /home/dev"]
+      volumeMounts:
+        - name: dev-home
+          mountPath: /home/dev
+  volumes:
+    - name: dev-home
+      persistentVolumeClaim:
+        claimName: dev-home-pvc
+    - name: training-data
+      persistentVolumeClaim:
+        claimName: training-data-pvc