curl -X POST https://morimori.app/api/v2/orders/wtr-embed \
  -H "Authorization: Bearer YOUR_API_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "idempotencyKey": "key-embed-001",
    "files": [
      {
        "fileName": "image.jpg",
        "watermarks": [{"text": "MORI_WATERMARK"}]
      }
    ]
  }'

{
  "data": {
    "orderName": "<string>",
    "orderId": "<string>",
    "files": [
      {
        "fileId": "<string>",
        "fileName": "<string>",
        "uploadUrl": "<string>",
        "fileKey": "<string>"
      }
    ]
  }
}