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
  ]
}