SendBulkResponse

{
    "success": true,
    "message": "Envio em massa concluído: 10 enviadas, 0 erros, 2 inválidos",
    "data": {
        "batchUuid": "fc04296f-170f-455b-bff8-c6d7a5e9f76f",
        "summary": {
            "total": 12,
            "success": 10,
            "failed": 0,
            "invalid": 2
        },
        "results": [
            {
                "number": "string",
                "uuid": "string",
                "messageId": "string",
                "status": "string"
            }
        ],
        "errors": [
            {
                "number": "string",
                "error": "string",
                "message": "string"
            }
        ]
    }
}