v0.14.0 — Chromium app window for the detached notepad

Open the detached notepad as a Chromium app-mode window instead of a normal browser tab.

• The default detached window is now launched by the Host with the local Edge / Chrome --app=URL form: no tabs, no address bar, a dedicated window with its own taskbar entry and independent minimize / restore.
• Settings → Notepad → Detached window gains a Window form choice: app window (default) or system browser window. If no Chromium browser is found, the client falls back to the previous browser-window path.
• Every app window uses a dedicated temporary Chromium profile (--user-data-dir), --window-size, --no-first-run and --no-default-browser-check, so it does not restore unrelated tabs or attach to the user’s main browser session.
• A duplicate request while the detached page is alive returns the existing window instead of spawning another one.
• A page favicon is served to give the app window its notepad icon.
• Note: this is a dedicated Chromium window, not a DSH Electron BrowserWindow. DSH’s main process denies window.open and exposes no window-creation IPC to plugins; a true Electron window needs a desktop-side core change. The README documents this boundary.

独立窗口改为 Chromium 应用窗口，不再默认打开普通浏览器标签页。

• 默认由宿主调用本机 Edge / Chrome 的 --app=URL，打开无标签页、无地址栏的独立应用窗口，有自己的任务栏窗口和最小化 / 还原。
• 设置页新增「窗口形式」：独立应用窗口（默认）/ 系统浏览器窗口；找不到浏览器时自动回退到原来的浏览器窗口。
• app 模式使用独立的临时 Chromium profile、窗口尺寸、--no-first-run 和 --no-default-browser-check，不会恢复无关标签页或附加到用户主浏览器会话。
• 独立窗口仍由插件回环服务 + 随机 token 提供；DSH 最小化 / 关闭页面不影响它，关闭窗口或点「收回面板」后浮窗自动恢复。
• 这不是 DSH 自己的 Electron BrowserWindow：主进程拒绝 window.open 且插件没有创建窗口的 IPC；真正的 BrowserWindow 需要桌面端核心改动，README 已说明边界。

v0.13.0 — detached notepad window

Detach the notepad into an independent window that survives the DSH interface being minimized or closed.

• A new header button and a Settings → Notepad → Detached window card open the same workspace note in a plugin-owned standalone window.
• The DSH floating panel collapses to its restore pill while detached; closing the standalone window, pressing its "Return to panel" button, the restore pill, or the Settings action brings the panel back.
• The standalone page is served by a token-guarded loopback server, not the DSH login route, so an external browser window keeps reading and writing <workspace>/.dsh/notepad.json while DSH is minimized or its page is closed.
• The detached window has its own minimize / restore, editing, Enter split, Backspace empty-card removal, archive / restore / delete, copy, AI improvement through the Host model selection, image preview, auto / manual save, dark mode and the configured theme and typography.
• Heartbeats and page-exit beacons keep the panel and window from fighting over the same note; a retired window is not revived by a URL prefetch.
• Security: the window token is random per Host process, the server binds 127.0.0.1 only, every API requires the token and a same-origin request, and images are confined to the workspace notepad image directory.

独立窗口：让记事本脱离 DSH 界面，DSH 最小化或关闭页面时仍可显示和编辑。

• 标题栏新增「↗」按钮，设置页新增「独立窗口」卡片；脱离期间浮窗收起为右下角小圆钮。
• 独立窗口有自己的最小化 / 还原，支持编辑、Enter 拆分、段首 Backspace 删除空段、归档 / 恢复 / 删除、复制、AI 优化、图片预览、自动 / 手动保存和深色模式。
• 独立窗口由插件自己的回环服务 + 随机 token 提供，不经过 DSH 登录 Cookie，所以在 DSH 最小化或页面关闭后仍能继续写回同一份工作区笔记；DSH 浮窗会通过心跳检测窗口关闭并自动恢复。
• 安全：只监听 127.0.0.1，所有 API 要求 token + 同源，图片只能读取该工作区 .dsh/notepad/images/。

v0.12.0 — edge-only arrow jumps and live sidebar badges

Switch cards from the text edges; refresh sidebar badges on save.

• Arrow keys used to leave a segment from its first / last logical line, so a caret anywhere on the first line (or the first column of the last line, or any row of a soft-wrapped line) jumped to a neighbour card.
• ↑ now leaves the card only at the very start of the text and ↓ only at the very end; a multi-line card keeps its arrows for its own caret, including the middle columns of its first / last line.
• The sidebar unsent badge stayed stale for the current workspace whenever the counts response carried a differently spelled path: the Workspace id is now resolved from the Session's Workspace membership first (then a case-insensitive projection / registry path match).
• The live note count overrides the polled value for that row, and a finished save wakes every mounted view's badge refresh instead of waiting for the poll (now 15s as a backstop for outside edits).

方向键只在分段文本最开头 / 最末尾切换相邻分段；侧边栏工作区角标随当前笔记实时更新。

• 以前按「首行 / 末行」判断，光标在首行任意列、末行第一列，或长文本软换行出来的行上都会误跳到相邻分段。
• 现在只有光标在文本最开头时 ↑ 才跳到上一段末尾、在文本最末尾时 ↓ 才跳到下一段开头；多行分段内部（含首行 / 末行中间列）正常移动光标。
• 侧边栏未发送角标：工作区 id 先按当前会话的工作区成员关系解析（再退回大小写不敏感的投影 / 注册表路径匹配），当前工作区那一行始终显示笔记里的实时数量。
• 任一会话保存成功后会立刻唤醒其它会话的角标刷新，15 秒轮询只作为外部改动的兜底。

v0.11.2 — new-session sends stay in the workspace

Create new-session sends inside the current workspace.

• sessions.create only attaches a Session to a Workspace when the request names its workspaceId; the notepad created with a bare cwd, so "send into a new session" landed in the sidebar's Ungrouped bucket even though the working directory was right.
• The notepad now resolves the owning Workspace from the current Session's membership first, then from the normalized cwd path (Windows drive / UNC case-insensitive), waits for the Workspace projection's ready baseline, and only falls back to cwd when no Workspace claims the directory.
• A failed Workspace attachment still publishes a real Session; that Session receives the text instead of creating a second Ungrouped one.

修复「在新会话中发送」的新会话落到侧边栏「未分组」。

• sessions.create 只有带上 workspaceId 才会把会话挂进工作区；记事本以前只传 cwd，所以工作目录正确、会话却出现在「未分组」。
• 现在先按当前会话的工作区成员关系匹配，再按规范化后的 cwd 路径匹配（Windows 盘符 / UNC 大小写不敏感），并等待工作区投影的 ready 基线；都匹配不到才退回 cwd。
• workspaceId 附件失败时 Host 仍会发布真实会话，直接用它继续发送，不会再建第二个未分组会话。

v0.11.1 — frosted-glass selection label

Give the selection label a frosted-glass background.

• The "select all / N selected" label no longer paints an opaque block: its background is now the panel surface at 80% opacity with its own saturation + blur (following the panel blur setting) and a matching 12px fade on the right edge.
• Overflowing action buttons sliding underneath now show as a soft frosted blur instead of being hidden by a solid strip; the label stays readable in both flat and glass panel styles.

全选区域改为毛玻璃底色。

• 「全选 / 已选 N 段」不再画不透明色块：底色改为面板表面色的 80% 透明度，并叠加饱和度与模糊（跟随面板模糊度设置），右缘保留同色 12px 渐隐。
• 溢出滑到标签下方的操作按钮现在会被柔和的毛玻璃虚化，而不是被纯色条完全盖住；纯色扁平与毛玻璃两种面板样式下文字都保持可读。

v0.11.0 — undo composer inserts / replaces, never replay sends

Record composer inserts / replaces in undo, keep sends irreversible.

• Plugin undo / redo now also records "insert into composer" and "replace composer" as single steps (stored as the draft text before / after the operation), so undo restores the draft the action overwrote and redo applies it again.
• A composer step only applies while the draft still equals the content that step produced; if the draft was typed into, cleared by a send or belongs to another session, the stale step is retired instead of wiping newer text.
• Sends are never undo / redo steps: notepad sends, send-to-new-session and the chat-send archive capture all commit with record: false.
• Cards a send archived (origin send / compose) are pinned to their current body and archived state in every restored snapshot, and re-appended when a snapshot predates them, so undo / redo can neither unarchive, rewrite nor resend them.

撤销 / 重做包含插入、替换，发送不可撤销 / 重做。

• 插件撤销 / 重做现在也记录「插入到输入框」和「替换输入框内容」，各记一步（存操作前后的对话框文本）：撤销会把对话框恢复成操作前的内容，重做再放回。
• 只有对话框仍等于该步留下的内容时这一步才生效；之后手动改过、被发送清空或属于别的会话时，该步自动作废，不会吞掉新输入。
• 发送不进入撤销 / 重做：记事本发送、发送到新会话、对话框发送后的自动归档都用 record: false 提交。
• 被发送归档的分段（origin 为 send / compose）在恢复历史快照时按现内容、现归档状态固定，快照里没有就补回，撤销 / 重做既不会恢复成未发送，也不会改写或重发。

v0.10.0 — archive chat sends and fold archive cards

Archive chat sends and foldable archive cards.

• A successful message sent from the conversation composer is now mirrored into the current workspace archive (origin: "compose"), persisted immediately and de-duplicated by content against every active / archived segment.
• Archive cards gained a fold toggle. Auto-saved chat messages start collapsed; manually archived and notepad-send segments (plus legacy archives) start expanded.
• Added origin metadata (manual / send / compose) to archived segments in .dsh/notepad.json, with forgiving reads for old files.

对话发送自动归档 + 归档卡片可折叠。

• 在会话输入框成功发送消息后，会作为当前工作区的归档分段保存（origin: "compose"），立即落盘，并按内容与所有活动 / 归档分段去重。
• 归档卡片新增折叠按钮：自动保存的对话消息默认折叠；手动归档、记事本发送按钮归档以及旧版归档默认展开。
• .dsh/notepad.json 的归档分段新增 origin（manual / send / compose）字段，旧文件读取时保持兼容。

v0.9.5 — bottom padding under the action buttons

Bottom padding under the action buttons.

• The right-aligned action buttons are top-aligned inside the bar with 4px of padding below, so the archive/delete group no longer touches the toolbar border.

补齐按钮栏底部间距。

• 右侧操作按钮改为顶部对齐，按钮下方保留 4px padding，归档/删除按钮组不再贴住按钮栏下边框。

v0.9.4 — spacing between the action bar and the first card

Extra vertical spacing between the action bar and the first segment card.

• The segment list now keeps 14px of top padding, so the selected card and the right-aligned hover groups no longer look cramped at that gap.

增加按钮栏与第一张分段卡片之间的垂直间距。

• 分段列表顶部 padding 从 8px 调整为 14px；选中卡片与右对齐按钮组之间不再显得贴在一起。

v0.9.3 — AI textarea grow and archive-preserving Backspace

AI rewrite height re-measurement and archive-preserving Backspace deletion.

• After an AI rewrite (or undo/redo and other programmatic text changes), every segment textarea is measured again, so a taller result expands the input instead of overflowing.
• Backspace deleting the last remaining active segment now keeps all archived segments; the fresh empty card is appended instead of replacing the whole note.

AI 优化后文本区自动撑开，Backspace 删除最后一条活动分段不再清空归档。

• AI 优化（以及撤销 / 重做等程序化改写）提交后会重新测量所有分段文本区高度，行数变多时输入框会自动长高。
• Backspace 删除最后一条活动空分段时会保留全部归档分段，只补一个新的空分段。