[Bug]: 使用uploadServiceUpload自定义上传Blob/File 原型链丢失无法使用原生文件上传到自定义接口

### 如何复现

```
import { initService } from '@/utils/request'
const request = initService()

export function HandleUploadServiceUpload(type, file, callback, option) {
  console.log('HandleUploadServiceUpload', type, file, callback, option)
  console.log('=== UEditorPlus v4.4.0 file 参数验证 ===')
  // 1. 基本类型检查
  console.log('file:', file)
  console.log('typeof file:', typeof file)
  console.log('file.constructor.name:', file?.constructor?.name)
  // 2. 严格类型检查
  console.log('file instanceof Blob:', file instanceof Blob)
  console.log('file instanceof File:', file instanceof File)
  console.log('Object.prototype.toString.call(file):', Object.prototype.toString.call(file))
  // 3. 属性检查
  console.log('file.name:', file?.name)
  console.log('file.size:', file?.size)
  console.log('file.type:', file?.type)
  console.log('file.slice:', typeof file?.slice)

// 5. 调用栈追踪（关键！）
  console.trace('uploadServiceUpload 调用栈')
  const formData = new FormData()
  formData.append('img', file.blob)
  return request({
    url: 'api/upload',
    method: 'post',
    data: formData
  }).then(res => {
    if (res.code === 200) {
      callback.success({
        url: res.data.url,
        state: 'SUCCESS'
      })
    }
  })
}
```

结果中的File和Blob均为普通对象，无法上传

GVP ModStartLib/ueditor-plus

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GVPModStartLib/ueditor-plus

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