curl --request POST \
  --url https://api.orcarouter.ai/v1/asset/real-human/sessions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "return_url": "https://your-app.com/verify/done"
}
'

{
  "session_id": "Xa9f...40位随机串",
  "h5_link": "https://verify.example.com/?session=...",
  "status": "pending"
}