curl --request POST \
  --url http://localhost:8080/api/auth/send-otp \
  --header 'Content-Type: application/json' \
  --data '
{
  "identifier": "[email protected]",
  "type": "EMAIL",
  "device_id": "web-client-id",
  "trace_id": "abc-123"
}
'

{
  "success": true,
  "error": true,
  "message": "<string>",
  "data": {
    "cooldown_seconds": 60,
    "trace_id": "trace-xyz"
  }
}