[细粒度PR] 后台任务实现包（23 个任务类） - #2561
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…port, scan, etc.)
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Maoweicao
marked this pull request as ready for review
April 30, 2026 11:35
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目标
补充所有后台任务实现类，作为下载管理、设置操作、本地扫描等功能的具体执行体。
变更（23 个文件）
task/impl/
CleanInvalidDownloadTask— 清理无效下载项CompressSelectedGalleriesTask— 压缩选中画廊为 zipDeleteFilesTask— 删除文件DeleteRangeDownloadTask— 批量删除指定范围下载ImportDataTask— 导入数据ScanDownloadFilesTask— 扫描下载文件StartAllDownloadTask— 全部开始下载StartRangeDownloadTask— 范围启动下载task/
CleanDownloadLogsTask、CleanRedundancyTask、DumpLogcatTaskExportDataTask、ExportDatabaseTask、ExportDownloadItemsTask、ImportDownloadItemsTaskRebuildDownloadRecordsTask、RepairAllDownloadedGalleryTask、RepairUnknownCategoryGalleryTaskResetMediaScanTask、ScanDownloadTask、ScanLocalGalleryTask、ScanRecycleBinTask依赖