curl --request POST \
  --url https://cloud-api.phala.com/api/v1/cvms/{cvm_id}/shutdown

{
  "id": 123,
  "name": "<string>",
  "status": "<string>",
  "teepod_id": 123,
  "app_id": "<string>",
  "vcpu": 123,
  "memory": 123,
  "disk_size": 123,
  "created_at": "2023-11-07T05:31:56Z",
  "teepod": {
    "id": 123,
    "name": "<string>"
  },
  "user_id": 123,
  "vm_uuid": "<string>",
  "instance_id": "<string>",
  "app_url": "<string>",
  "base_image": "<string>",
  "manifest_version": 123,
  "version": "<string>",
  "runner": "<string>",
  "docker_compose_file": "<string>",
  "features": [
    "<string>"
  ],
  "encrypted_env_pubkey": "<string>"
}