debug: check if pnpm-store volume is mounted in job container

.gitea/workflows/deploy-production.yaml

@@ -21,6 +21,16 @@ jobs:
         with:
           fetch-depth: 2
 
+      - name: Debug cache mounts
+        run: |
+          echo "=== /pnpm-store ==="
+          ls -la /pnpm-store 2>/dev/null || echo "NOT MOUNTED"
+          echo "=== PNPM_STORE_DIR=$PNPM_STORE_DIR ==="
+          echo "=== mount points ==="
+          mount | grep pnpm || echo "no pnpm mounts"
+          echo "=== docker volumes ==="
+          docker volume ls 2>/dev/null || echo "no docker access"
+
       - run: corepack enable && corepack prepare pnpm@latest --activate
 
       - run: pnpm install --frozen-lockfile