vars in Razdfile.yml problem

```

vars:
  TARGET_CWD: '{{.TARGET_CWD | default "/root/hello-world"}}'
  PANE_ID:
    sh: |
      herdr agent list | jq -r --arg cwd "{{.TARGET_CWD}}" '
        .result.agents[]
        | select(.cwd == $cwd and .agent == "omp")
        | .pane_id
      ' | head -n1
```