curl --request POST \
  --url https://api.ruxa.ai/api/v1/tasks/create \
  --header 'Authorization: Bearer sk-xxxxxx' \
  --header 'Content-Type: application/json' \
  --data '{
    "callback_url": "https://your-domain.com/api/callback",
    "input": {
      "prompt": "背景变成像素风",
      "size": "2:3",
      "image": "https://example.com/your-image.png"
    },
    "model": "gpt-4o-image"
  }'

{
  "code": 200,
  "message": "success",
  "data": {
    "taskId": "task_gpt-4o-image_1766304530229_cf4dafd2"
  }
}