新增等级调价单并审核

{
    "description": "string",
    "details": [
        {
            "multiUnitList": [
                {
                    "id": 0,
                    "prices": [
                        {
                            "index": 0,
                            "price": 0
                        }
                    ]
                }
            ],
            "skuId": 0
        }
    ],
    "levelIndex": [
        0
    ]
}