Document folder uploads and upload queue in English and Chinese

docs/user-guide/terminal-and-files.md

@@ -38,7 +38,7 @@ The file list provides hidden-file visibility, sorting, checkboxes for multiple
 
 **Actions** provides copy, cut, paste, rename, delete, properties, permission editing, compression, extraction and opening files. Right-click a file or folder to open a menu at the pointer; right-clicking a selected item preserves the multi-selection. Right-click the empty list area for new file/folder, paste, upload and refresh actions. Escape or clicking elsewhere closes the menu. Symbolic links have an arrow marker and their target in Properties. Copy preserves links; deleting a link does not delete its target. Special filesystem objects cannot be copied or archived.
 
-Copy, move, upload and extraction let you skip conflicts, keep both names or confirm replacement for the batch. Replacement of a same-name folder replaces that whole folder; it does not merge its contents. Long tasks show actual bytes or completed entries, can be cancelled, and report individual failures. Completed items remain completed when a later item fails or the task is cancelled. Switching manager sections keeps active file work and editor state in the current page.
+Copy, move and extraction let you skip conflicts, keep both names or confirm replacement for the batch. Replacement of a same-name folder replaces that whole folder; it does not merge its contents. Long tasks show actual bytes or completed entries, can be cancelled, and report individual failures. Completed items remain completed when a later item fails or the task is cancelled. Switching manager sections keeps active file work and editor state in the current page.
 
 ## Recycle bin
 
@@ -48,7 +48,17 @@ The recycle bin supports restoring with an unused name or keeping both copies, p
 
 ## Transfer and edit
 
-Upload multiple files or a folder from your browser. Transfers use 1 MiB chunks, byte progress and private temporary files; only a completed upload receives its final filename. Cancelled uploads are removed and hourly maintenance removes transfers idle for at least an hour. A stopped service may leave clearly named `.framely-upload-*` temporary files, never a falsely complete final file. Uploads are limited to 64 GiB per file and 64 simultaneous transfer records.
+Drag files, folders or a mixed selection from your computer onto a folder in the list, icon grid, sidebar or breadcrumbs. Drop onto empty file-list space to upload into the current folder. The highlighted target shows its path. Files, the recycle-bin content and preview overlays are not upload destinations.
+
+Before any writing, a confirmation shows the canonical destination path, counts and total size. Choose **Skip**, **Overwrite** or **Keep both** (default). Existing folders are merged; the policy applies only to same-name files and other destination files are retained. Skip is checked before transfer. Overwrite replaces the original only after successful completion; keep-both results show the new filename. Type conflicts fail individually. Destination changes and nested symbolic-link traversal are rejected.
+
+**Upload queue** groups selections by destination and provides individual/batch cancellation, retry of failed tasks and removal of finished records. **Simultaneous file uploads** defaults to 3, accepts 1–8, and is saved for the device user independently of view and folder sorting. Increasing it starts more work immediately; reducing it lets active files finish. Each file uses at most two chunk requests; the queue has at most eight chunk requests in flight. Browsing and changing manager sections do not stop uploads or change their destination.
+
+Folder drag-and-drop preserves empty folders. The Upload folder button uses the browser directory API when available; its legacy file-input fallback can only return files, so use drag-and-drop for empty folders. Large directories are enumerated asynchronously; folder readers are drained until empty. A selection may contain at most 100,000 entries.
+
+The queue lasts only for this browser page. Refreshing or closing warns about unfinished work and attempts cancellation; server inactivity cleanup is the fallback. Completed files are retained. Failed transfers retry from the beginning; there is no cross-refresh resume.
+
+Upload multiple files or a folder from your browser. Transfers use 16 MiB chunks, byte progress and private temporary files; only a completed upload receives its final filename. Cancelled uploads are removed and hourly maintenance removes transfers idle for at least an hour. A stopped service may leave clearly named `.framely-upload-*` temporary files, never a falsely complete final file. Uploads are limited to 64 GiB per file and 64 simultaneous transfer records.
 
 Download a single file directly, or select multiple files/folders to download a ZIP. Download links expire after an hour. Large files stream without loading the entire file into memory; single-byte ranges support video seeking and resuming downloads.
 

docs/zh-CN/user-guide/terminal-and-files.md

@@ -36,7 +36,7 @@
 
 “操作”提供复制、剪切、粘贴、重命名、删除、属性、权限修改、压缩、解压及打开。右键文件会在指针处打开操作菜单。符号链接显示箭头，属性显示目标；复制保留链接，删除链接不会删除目标。特殊文件不能复制或压缩。
 
-复制、移动、上传、解压可按批次选择跳过、保留两份或明确确认覆盖。同名文件夹覆盖会替换整个文件夹，不合并内容。长任务显示真实字节或已完成条目，可取消并逐项报告错误；后续失败或取消不撤销已完成的项目。在当前网页内切换区域会保留文件任务及编辑状态。
+复制、移动、解压可按批次选择跳过、保留两份或明确确认覆盖。同名文件夹覆盖会替换整个文件夹，不合并内容。长任务显示真实字节或已完成条目，可取消并逐项报告错误；后续失败或取消不撤销已完成的项目。在当前网页内切换区域会保留文件任务及编辑状态。
 
 拖动侧栏与文件列表之间的分隔线可调整宽度，并在当前浏览器中记住；窄窗口会自动限制宽度。快速访问固定在顶部一定高度，目录树占据侧栏剩余高度；两个列表分别在内部滚动，标题保持可见，从右侧列表或地址栏进入文件夹时，目录树会展开并标记对应位置。
 
@@ -50,7 +50,17 @@
 
 ## 传输与编辑
 
-网页可上传多个文件或文件夹，使用 1 MiB 分块和字节进度，先写私有临时文件，完成后才获得最终文件名。取消会移除临时文件，约每小时清理闲置至少一小时的上传。服务被强行停止可能留下明确命名的 `.framely-upload-*` 临时文件，不会冒充完整结果。每个文件最大 64 GiB，同时最多保存 64 条上传记录。
+从电脑拖入文件、文件夹或混合选择。列表、图标视图、侧边目录树、快速访问及面包屑中的文件夹均为上传目标；列表空白区域对应当前目录。拖动时高亮目标并显示路径，文件条目、回收站内容及预览遮罩不接受上传。
+
+写入前弹窗确认真实目标路径、文件与文件夹数量及总大小，并选择跳过、覆盖或保留两者，默认保留两者。同名文件夹合并，策略只处理同名文件，已有其他文件保留。跳过在传输前判断；覆盖在上传完成后原子替换；保留两者会显示新文件名。类型冲突逐项报错，目标目录变化及嵌套符号链接逃逸会被拒绝。
+
+上传任务队列按批次和目标分组，可取消单项或整批、重试失败项及清除已结束记录。“同时上传文件数”默认 3，可设置 1–8，按设备用户全局保存，不改变展示方式和目录排序。增加立即补充任务，减少时让正在上传的文件完成。每文件最多两个分块请求，整个队列最多八个分块请求。上传不锁住文件页面，切换目录或管理区域后继续，目标保持确认时的路径。
+
+拖入文件夹会保留空文件夹。上传文件夹按钮优先使用浏览器目录 API；传统文件输入框只能返回文件，空文件夹请通过拖放上传。大目录异步枚举，完整读取浏览器分批返回的条目，每次最多 100,000 项。
+
+队列仅保留在当前浏览器页面，刷新或关闭前提醒，并尽力取消活动上传；服务端按闲置时间兜底清理。已完成文件保留，失败项从头重试，不提供跨刷新续传。
+
+网页可上传多个文件或文件夹，使用 16 MiB 分块和字节进度，先写私有临时文件，完成后才获得最终文件名。取消会移除临时文件，约每小时清理闲置至少一小时的上传。服务被强行停止可能留下明确命名的 `.framely-upload-*` 临时文件，不会冒充完整结果。每个文件最大 64 GiB，同时最多保存 64 条上传记录。
 
 单文件可直接下载，多选文件或文件夹以 ZIP 下载；下载链接一小时后失效。大文件流式传输，单段 Range 请求支持视频拖动和下载续传。