增加采购验退，调整代码结构

啊鑫

2024-07-24 687c7eb08e7c3a803a3b60dedc9c394dbb6ba411

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{
  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft": "Warning",
      "Microsoft.Hosting.Lifetime": "Information"
    }
  },
  "AllowedHosts": "*"
}