/**
 * 创建文件DTO
 */
export declare class CreateFileDto {
    originalName: string;
    filename: string;
    mimeType: string;
    fileType?: string;
    extension?: string;
    size: number;
    checksum?: string;
    path?: string;
    url?: string;
    storageProvider?: string;
    userId?: string;
    uploadId?: string;
    bucket?: string;
    key?: string;
    etag?: string;
    tempPath?: string;
    status?: 'processing' | 'completed' | 'failed' | 'deleted';
    validationData?: Record<string, unknown>;
    metadata?: Record<string, unknown>;
}