fix: 密码箱弹窗改回前台 dialog-overlay 风格（深浅色适配，保留顶层渲染修复）

- routes/notes.js CRUD + 文件名安全校验 + 实体 .txt 存储 workspace/
- NoteEditor 浮窗(可拖拽)↔固定(280px)切换，📌 工具栏入口
- 编辑器 900ms 防抖自动保存 + Ctrl+S + dirty 指示
- 文件管理器：新建/重命名/删除/空态/错误态
- server 挂载 /api/notes，gitignore workspace/

.gitignore

@@ -8,3 +8,4 @@ server.pid
 releases/
 public/dist/
 backups/
+workspace/

docs/workbench-plan.md

@@ -0,0 +1,83 @@
+# 工作台模块项目计划（tools/workbench）
+
+> 独立完整项目流程：调研 ✓ → 设计规范 ✓ → 本计划 → 实现 → 审查 → 验证。
+> 布局调研：lib-1（VSCode 四层 / Dashy Workspace / Vivaldi Web Panels / Arc pinned / Homepage groups + iframe 技术建议）。
+> 设计规范：frontend-pack/design skill（8px 网格、语义色 token、层次/留白/焦点环/深浅色/加载空错误态）。
+
+## 1. 模块定位
+
+「面板工作台」：浏览器式多面板聚合界面（左侧侧边栏 + 顶部工具栏 + 右侧 iframe 内容区），叠加密码库快捷取用。仅管理员（adminOnly）可进入。
+
+## 2. 技术方案
+
+| 项 | 决定 |
+|---|---|
+| 风格 | **MUI**（与后台一致，MD3 主题复用 frontend/src/admin/theme.js） |
+| 路由 | 独立页面 `/workbench`（React Router，挂管理后台路由树外或独立 BrowserRouter 区——用后台同一入口 admin 应用内加路由最简，basename /admin 下 `/admin/workbench`？——**决定：独立入口**（admin.html 已有），路由挂 `/admin/workbench`，与 Dashboard 等并列，顶栏入口按钮跳转；整页全屏布局不带 AdminLayout 侧栏（工作台自带侧边栏） |
+| 代码位置 | `frontend/src/tools/workbench/`（独立工具区，页面+组件+密码库组件+工具函数全在这，方便后续升级） |
+| 鉴权 | 入口守卫：无 token → 跳 /login.html；非 admin → 403 提示返回（复用后台守卫模式） |
+| 数据 | admin_links API（复用 frontend/src/api/adminLinks.js）+ passwords API（复用） |
+| proxy | `/api/proxy/fetch?url=&token=`（iframe query token，复用 Embed.jsx 的 needsProxy 逻辑） |
+
+## 3. 文件结构
+
+```
+frontend/src/tools/workbench/
+├── Workbench.jsx            # 页面入口（路由挂载点 + 鉴权守卫 + 布局组装）
+├── components/
+│   ├── Toolbar.jsx          # 顶部工具栏（◀▶↻ 地址栏 搜索 添加 密码库 侧栏开关 返回）
+│   ├── Sidebar.jsx          # 左侧边栏（固定区 + 分组列表 + 折叠 + 拖拽调宽可选）
+│   ├── PanelFrame.jsx       # iframe 内容区（加载态/超时/失败回退/LRU 保留）
+│   ├── AddPanelDialog.jsx   # 添加面板弹窗（URL/命名/分组/图标 + 打开方式）
+│   └── VaultDrawer.jsx      # 密码库抽屉（PIN 解锁/搜索/复制，MUI）
+├── hooks/
+│   ├── usePanels.js         # 面板数据/打开集合/历史栈/持久化(localStorage)
+│   └── useVault.js          # 密码库解锁状态/条目加载（复用 passwords API）
+└── index.js                 # 模块导出（便于未来升级替换）
+```
+
+## 4. 功能清单
+
+### 核心（必须）
+- [ ] 鉴权守卫（adminOnly）
+- [ ] 工具栏：◀ 后退 / ▶ 前进（当前面板历史栈）、↻ 刷新、只读地址栏、🔍 搜索（面板名/URL/分组）、＋添加、🔑 密码库、侧边栏折叠、返回前台
+- [ ] 侧边栏：admin_links 按 category 分组 + 固定区（pin），点击切换，当前项左侧 2px primary 指示条 + surface-container 底（MUI 化：ListItemButton selected 态）
+- [ ] iframe 区：懒加载（首次激活创建）、display:none 切换保留状态、**超时+load 双保险加载态**、失败（超时/空白启发式）显示「在新标签打开」回退按钮
+- [ ] 打开方式：内嵌（默认）/ 新标签（target=_blank）/ 弹窗（modal）——面板项右键或添加时选择，存面板设置
+- [ ] 添加面板弹窗：URL + 标题 + 分组 + 图标（favicon 预览）+ 打开方式；保存到 admin_links（复用现有 API）
+- [ ] localStorage 持久化：打开面板集合、当前面板、历史栈、侧边栏折叠态
+- [ ] 密码库抽屉：PIN 解锁（复用 /api/passwords/unlock，服务端会话互通）→ 条目列表（标题/用户名）+ 搜索 + 详情（密码明文）+ 一键复制（clipboard）；未设 PIN 引导去 /passwords.html；只读取用不编辑
+- [ ] 空态/加载态/错误态：无面板引导添加、加载骨架、加载失败重试
+
+### 进阶（尽力）
+- [ ] LRU iframe 保留（最多 3 个活跃，超出销毁最久未用，记录 URL 重建）
+- [ ] 每面板定时刷新（可选 30s/5min/30min）
+- [ ] 侧边栏拖拽调宽 + 记忆
+- [ ] 分组折叠状态持久化
+
+## 5. 设计规范（design skill + 调研要点）
+
+- 8px 网格间距；一屏内不超过 2 种圆角（MUI 默认 8px/20px pill）
+- 语义色 token（MD3）：工具栏/侧边栏 surface-container、选中 primary-container、hover surface-variant
+- 选中态：左侧 2px primary 指示条（VSCode 模式）或 MUI selected 态，二选一统一
+- 深色模式默认适配（后台已有 data-theme 机制）
+- 焦点环（focus-visible）、语义 HTML（nav/main/aside/button）、触控目标 ≥40px
+- 加载态用骨架/居中 spinner；空态带图标+CTA；错误态带重试
+- iframe title 属性必须；allow 权限策略按面板
+- 工具栏高度 48-56px、侧边栏默认 240px（可 180-360 拖拽）
+
+## 6. 实施与质量流程
+
+1. 派 designer 按本计划实现（一个会话，MUI + 复用后台主题/api）
+2. ora 审查（鉴权/安全/iframe 处理/状态管理/无障碍）→ 修复
+3. 验证：npm run build + 后台入口跳转 + admin 权限拦截 + 面板切换/proxy/密码库全链路冒烟
+4. commit + 用户验收
+
+## 7. 验收标准
+
+- [ ] 非 admin 无法进入（无 token 跳登录、非 admin 403）
+- [ ] 面板分组/固定/切换/关闭/添加/持久化全部可用
+- [ ] proxy 面板正常嵌入；X-Frame-Options 拒绝的面板有回退提示
+- [ ] 密码库解锁→搜索→复制链路通（与服务端会话互通）
+- [ ] 深浅色、320/768/1440 三档响应式正常
+- [ ] build 通过、无 console 错误

frontend/src/admin/AdminLayout.jsx

@@ -15,6 +15,7 @@ import ListItemIcon from '@mui/material/ListItemIcon';
 import ListItemText from '@mui/material/ListItemText';
 import MenuIcon from '@mui/icons-material/Menu';
 import HomeIcon from '@mui/icons-material/Home';
+import GridViewIcon from '@mui/icons-material/GridView';
 import LogoutIcon from '@mui/icons-material/Logout';
 import DashboardIcon from '@mui/icons-material/Dashboard';
 import SettingsIcon from '@mui/icons-material/Settings';
@@ -88,6 +89,10 @@ export default function AdminLayout() {
             </IconButton>
           )}
           <Typography variant="h6" sx={{ flexGrow: 1 }}>管理后台</Typography>
+          <Button color="inherit" onClick={() => navigate('/workbench')} title="面板工作台" sx={{ minWidth: 0, px: { xs: 1, sm: 1.5 } }}>
+            <GridViewIcon sx={{ fontSize: 18, mr: { xs: 0, sm: 0.5 } }} />
+            <Box component="span" sx={{ display: { xs: 'none', sm: 'inline' } }}>工作台</Box>
+          </Button>
           <Button color="inherit" href="/" title="返回前台">
             <HomeIcon sx={{ mr: 0.5, fontSize: 18 }} />返回前台
           </Button>

frontend/src/admin/main.jsx

@@ -1,4 +1,4 @@
-import React, { useEffect, useState } from 'react';
+import React, { lazy, Suspense, useEffect, useState } from 'react';
 import { createRoot } from 'react-dom/client';
 import { BrowserRouter, Routes, Route, Navigate } from 'react-router-dom';
 import { ThemeProvider } from '@mui/material/styles';
@@ -25,6 +25,8 @@ import Announcements from './pages/Announcements.jsx';
 import Links from './pages/Links.jsx';
 import Uploads from './pages/Uploads.jsx';
 import ImportDb from './pages/ImportDb.jsx';
+// 工作台独立分包：仅访问 /admin/workbench 时才加载（vite 自动 code-split）
+const Workbench = lazy(() => import('../tools/workbench/Workbench.jsx'));
 
 // 生产：/admin/* 由后端 fallback 到 dist/admin.html（Phase 6 需求），basename=/admin；
 // 开发：vite 多入口直接访问 /admin.html，basename 自适应为空。
@@ -76,6 +78,21 @@ function AdminApp() {
       <CssBaseline />
       <BrowserRouter basename={basename}>
         <Routes>
+          {/* 工作台：独立全屏布局，不套 AdminLayout（自带 Toolbar+Sidebar+内容区）；懒加载分包 */}
+          <Route
+            path="/workbench"
+            element={
+              <Suspense
+                fallback={
+                  <Box sx={{ display: 'flex', alignItems: 'center', justifyContent: 'center', height: '100vh' }}>
+                    <CircularProgress />
+                  </Box>
+                }
+              >
+                <Workbench />
+              </Suspense>
+            }
+          />
           <Route element={<AdminLayout />}>
             <Route index element={<Navigate to="/dashboard" replace />} />
             <Route path="/dashboard" element={<Dashboard />} />

frontend/src/api/notes.js

@@ -0,0 +1,23 @@
+import { request } from './client.js';
+
+// ── 工作台「记事本」（routes/notes.js，仅管理员） ────────────
+/** 文件列表：[{ name, size, mtime }]，按修改时间倒序 */
+export function listNotes() {
+  return request('/notes');
+}
+/** 读取内容：{ name, content, size, mtime } */
+export function getNote(filename) {
+  return request('/notes/' + encodeURIComponent(filename));
+}
+/** 创建：{ filename, content }，同名返回 409 */
+export function createNote(filename, content) {
+  return request('/notes', { method: 'POST', body: { filename, content } });
+}
+/** 更新内容：{ content } */
+export function updateNote(filename, content) {
+  return request('/notes/' + encodeURIComponent(filename), { method: 'PUT', body: { content } });
+}
+/** 删除 */
+export function deleteNote(filename) {
+  return request('/notes/' + encodeURIComponent(filename), { method: 'DELETE' });
+}

frontend/src/pages/Passwords.jsx

@@ -263,9 +263,10 @@ export default function Passwords() {
     return <div className="loading"><div className="spinner"></div></div>;
   }
 
-  // PIN 屏（设置 或 解锁）
-  if (phase === 'setup' || phase === 'locked') {
   return (
+    <>
+      {/* PIN 屏（设置 或 解锁）——全屏覆盖页，非弹窗 */}
+      {phase === 'setup' || phase === 'locked' ? (
         <div className="pin-overlay">
           <div className="pin-icon"><span className="material-icons" style={{ fontSize: 40 }}>lock</span></div>
           <div style={{ fontSize: 18, fontWeight: 500 }}>
@@ -290,11 +291,8 @@ export default function Passwords() {
             </button>
           </div>
         </div>
-    );
-  }
-
-  // 已解锁：密码箱
-  return (
+      ) : (
+        /* 已解锁：密码箱 */
         <div>
           <div className="admin-header">
             <h2>已保存的密码</h2>
@@ -342,6 +340,11 @@ export default function Passwords() {
               ))}
             </div>
           )}
+        </div>
+      )}
+
+      {/* ===== 弹窗统一挂载在顶层（setup/locked 阶段也能弹出——功能修复关键，勿移入 phase 分支） ===== */}
+      {/* 结构与论坛发帖弹窗一致：.dialog-overlay + .dialog，MD3 CSS 变量天然适配浅/深色模式 */}
 
       {/* 设置/修改 PIN 弹窗 */}
       {pinDialog && (
@@ -528,6 +531,6 @@ export default function Passwords() {
           </div>
         </div>
       )}
-    </div>
+    </>
   );
 }

frontend/src/tools/workbench/Workbench.jsx

@@ -0,0 +1,409 @@
+import React, { useEffect, useRef, useState } from 'react';
+import Box from '@mui/material/Box';
+import Typography from '@mui/material/Typography';
+import Button from '@mui/material/Button';
+import CircularProgress from '@mui/material/CircularProgress';
+import Dialog from '@mui/material/Dialog';
+import DialogTitle from '@mui/material/DialogTitle';
+import DialogContent from '@mui/material/DialogContent';
+import IconButton from '@mui/material/IconButton';
+import Tooltip from '@mui/material/Tooltip';
+import OpenInNewIcon from '@mui/icons-material/OpenInNew';
+import CloseIcon from '@mui/icons-material/Close';
+import WidgetsIcon from '@mui/icons-material/Widgets';
+import AddIcon from '@mui/icons-material/Add';
+import ErrorIcon from '@mui/icons-material/Error';
+import RefreshIcon from '@mui/icons-material/Refresh';
+import LockIcon from '@mui/icons-material/Lock';
+import HomeIcon from '@mui/icons-material/Home';
+import { getToken } from '../../api/client.js';
+import { me } from '../../api/auth.js';
+import usePanels from './hooks/usePanels.js';
+import Toolbar from './components/Toolbar.jsx';
+import Sidebar from './components/Sidebar.jsx';
+import PanelFrame from './components/PanelFrame.jsx';
+import AddPanelDialog from './components/AddPanelDialog.jsx';
+import VaultDrawer from './components/VaultDrawer.jsx';
+import NoteEditor from './components/NoteEditor.jsx';
+import PanelIcon from './components/PanelIcon.jsx';
+import SnackHost, { showSnack } from '../../admin/snack.jsx';
+
+/* ============================================================
+ * Workbench：面板工作台页面入口（路由 /admin/workbench）
+ * - 鉴权守卫：无 token → /login.html；非 admin → 403 提示返回
+ * - 组装 Toolbar + Sidebar + PanelFrame 区 + AddPanelDialog
+ * - 挂载 VaultDrawer（Lane B 提供），LRU 保留最多 3 个活跃 iframe
+ * ============================================================ */
+
+function AdminGuard({ children }) {
+  const [state, setState] = useState('checking'); // checking | denied | ok
+
+  useEffect(() => {
+    if (!getToken()) { window.location.href = '/login.html'; return; }
+    me()
+      .then((u) => {
+        if (u.role !== 'admin') setState('denied');
+        else setState('ok');
+      })
+      .catch(() => { window.location.href = '/login.html'; });
+  }, []);
+
+  if (state === 'checking') {
+    return (
+      <Box sx={{ display: 'flex', alignItems: 'center', justifyContent: 'center', height: '100vh' }}>
+        <CircularProgress />
+      </Box>
+    );
+  }
+  if (state === 'denied') {
+    return (
+      <Box
+        sx={{
+          height: '100vh', display: 'flex', flexDirection: 'column',
+          alignItems: 'center', justifyContent: 'center', gap: 2, px: 3, textAlign: 'center',
+        }}
+      >
+        <LockIcon sx={{ fontSize: 48, color: 'error.main' }} />
+        <Typography variant="h6">需要管理员权限</Typography>
+        <Typography variant="body2" sx={{ color: 'text.secondary', maxWidth: 360 }}>
+          面板工作台仅对管理员开放。如需使用，请使用管理员账号登录，或返回前台。
+        </Typography>
+        <Box sx={{ display: 'flex', gap: 1 }}>
+          <Button variant="outlined" startIcon={<HomeIcon />} href="/">返回前台</Button>
+          <Button variant="contained" href="/login.html">重新登录</Button>
+        </Box>
+      </Box>
+    );
+  }
+  return children;
+}
+
+/** 打开面板标签条：切换 + 关闭（浏览器标签风格，支持方向键/Home/End 键盘导航） */
+function TabStrip({ openPanels, activeId, onSelect, onClose, onAdd }) {
+  const stripRef = useRef(null);
+
+  const tabEls = () => Array.from(stripRef.current?.querySelectorAll('[role="tab"]') || []);
+  const moveTo = (i) => {
+    const n = openPanels.length;
+    if (n === 0) return;
+    const j = ((i % n) + n) % n;
+    onSelect(openPanels[j].id);
+    tabEls()[j]?.focus();
+  };
+  const handleKeyDown = (e, index) => {
+    if (e.key === 'ArrowRight') { e.preventDefault(); moveTo(index + 1); }
+    else if (e.key === 'ArrowLeft') { e.preventDefault(); moveTo(index - 1); }
+    else if (e.key === 'Home') { e.preventDefault(); moveTo(0); }
+    else if (e.key === 'End') { e.preventDefault(); moveTo(openPanels.length - 1); }
+  };
+
+  return (
+    <Box
+      ref={stripRef}
+      role="tablist"
+      aria-label="已打开的面板"
+      sx={{
+        display: 'flex', alignItems: 'center', gap: 0.25, px: 0.5, py: 0.5,
+        height: 40, flexShrink: 0, bgcolor: 'background.paper',
+        borderBottom: 1, borderColor: 'divider', overflowX: 'auto', overflowY: 'hidden',
+      }}
+    >
+      {openPanels.map((p, index) => {
+        const active = String(p.id) === String(activeId);
+        return (
+          <Box
+            key={p.id}
+            role="tab"
+            aria-selected={active}
+            tabIndex={active ? 0 : -1}
+            onClick={() => onSelect(p.id)}
+            onKeyDown={(e) => handleKeyDown(e, index)}
+            sx={{
+              display: 'flex', alignItems: 'center', gap: 0.5, pl: 1, pr: 0.25,
+              height: 28, borderRadius: 1, cursor: 'pointer', flexShrink: 0, outline: 'none',
+              bgcolor: active ? 'primary.container' : 'transparent',
+              color: active ? 'primary.onContainer' : 'text.secondary',
+              '&:hover': { bgcolor: active ? 'primary.container' : 'action.hover' },
+              '&:focus-visible': { boxShadow: (t) => `inset 0 0 0 2px ${t.palette.primary.main}` },
+            }}
+          >
+            <PanelIcon url={p.embed_url || p.url} title={p.title} size={14} />
+            <Typography
+              sx={{
+                fontSize: 12, fontWeight: active ? 600 : 500, maxWidth: 120,
+                overflow: 'hidden', textOverflow: 'ellipsis', whiteSpace: 'nowrap',
+              }}
+            >
+              {p.title}
+            </Typography>
+            <IconButton
+              size="small"
+              onClick={(e) => { e.stopPropagation(); onClose(p.id); }}
+              aria-label={`关闭面板 ${p.title}`}
+              sx={{ width: 20, height: 20, borderRadius: 0.5, '& svg': { fontSize: 14 } }}
+            >
+              <CloseIcon />
+            </IconButton>
+          </Box>
+        );
+      })}
+      <Tooltip title="添加面板">
+        <IconButton size="small" onClick={onAdd} sx={{ ml: 0.25, flexShrink: 0 }} aria-label="添加面板">
+          <AddIcon sx={{ fontSize: 16 }} />
+        </IconButton>
+      </Tooltip>
+    </Box>
+  );
+}
+
+function EmptyState({ icon, title, hint, action, onAction }) {
+  return (
+    <Box
+      sx={{
+        flex: 1, display: 'flex', flexDirection: 'column',
+        alignItems: 'center', justifyContent: 'center', gap: 1.5, px: 3, textAlign: 'center',
+      }}
+    >
+      {icon}
+      <Box>
+        <Typography sx={{ fontWeight: 600, mb: 0.5 }}>{title}</Typography>
+        <Typography variant="body2" sx={{ color: 'text.secondary' }}>{hint}</Typography>
+      </Box>
+      {action && <Button variant="contained" startIcon={<AddIcon />} onClick={onAction}>{action}</Button>}
+    </Box>
+  );
+}
+
+function WorkbenchContent() {
+  const panels = usePanels();
+  const {
+    links, loadError, reload, panelsById, renderedIds, openPanels,
+    activeId, activePanel, modalPanel, closeModal,
+    canBack, canForward, goBack, goForward,
+    openPanel, closePanel, togglePin, toggleGroup, setMode,
+    pinned, groups, collapsed, setCollapsed,
+    search, setSearch, filteredPanels, openFirstMatch,
+  } = panels;
+
+  // 主面板与弹窗面板各自独立的刷新信号（弹窗刷新不连带主面板）
+  const [mainRefresh, setMainRefresh] = useState(0);
+  const [modalRefresh, setModalRefresh] = useState(0);
+  const [addOpen, setAddOpen] = useState(false);
+  const [vaultOpen, setVaultOpen] = useState(false);
+  // 记事本：noteOpen 开关，noteMode 'float'(右下角浮窗) / 'fixed'(右侧固定栏)
+  const [noteOpen, setNoteOpen] = useState(false);
+  const [noteMode, setNoteMode] = useState('float');
+  const toggleNoteMode = () => setNoteMode((m) => (m === 'float' ? 'fixed' : 'float'));
+
+  const categories = [...new Set((links || []).map((p) => p.category || '默认'))];
+
+  const handleOpenExternal = () => {
+    if (activePanel) window.open(activePanel.embed_url || activePanel.url, '_blank', 'noopener');
+  };
+
+  const handleSaved = (panel) => {
+    showSnack(`已添加「${panel.title}」`);
+    setAddOpen(false);
+    reload().then(() => openPanel(panel.id, panel));
+  };
+
+  const content = (() => {
+    if (links === null && !loadError) {
+      // 加载态
+      return (
+        <Box sx={{ flex: 1, display: 'flex', alignItems: 'center', justifyContent: 'center' }}>
+          <CircularProgress size={36} />
+        </Box>
+      );
+    }
+    if (loadError) {
+      // 错误态
+      return (
+        <EmptyState
+          icon={<ErrorIcon sx={{ fontSize: 44, color: 'error.main' }} />}
+          title="面板列表加载失败"
+          hint={loadError}
+          action="重试"
+          onAction={reload}
+        />
+      );
+    }
+    if (links.length === 0) {
+      // 空态：无面板引导添加
+      return (
+        <EmptyState
+          icon={<WidgetsIcon sx={{ fontSize: 44, color: 'primary.main' }} />}
+          title="还没有任何面板"
+          hint="添加常用后台 / 监控 / 工具站到工作台，一个界面全部打开"
+          action="添加第一个面板"
+          onAction={() => setAddOpen(true)}
+        />
+      );
+    }
+    if (!activePanel) {
+      // 已打开的面板都被关闭
+      return (
+        <EmptyState
+          icon={<WidgetsIcon sx={{ fontSize: 44, color: 'text.disabled' }} />}
+          title="未打开面板"
+          hint="从左侧选择一个面板开始，或搜索后按 Enter 直达"
+          action="打开一个面板"
+          onAction={() => { if (filteredPanels[0]) openPanel(filteredPanels[0].id); }}
+        />
+      );
+    }
+    // 正常态：LRU 渲染（当前 + 最近 2 个）
+    return renderedIds.map((id) => {
+      const panel = panelsById[id];
+      if (!panel) return null;
+      return (
+        <PanelFrame
+          key={id}
+          panel={panel}
+          active={String(id) === String(activeId)}
+          refreshNonce={mainRefresh}
+        />
+      );
+    });
+  })();
+
+  return (
+    <>
+      <Toolbar
+        canBack={canBack}
+        canForward={canForward}
+        onBack={goBack}
+        onForward={goForward}
+        onRefresh={() => { if (activePanel) setMainRefresh((n) => n + 1); }}
+        currentPanel={activePanel}
+        onOpenExternal={handleOpenExternal}
+        search={search}
+        onSearchChange={setSearch}
+        onSearchEnter={() => {
+          if (!openFirstMatch() && search.trim()) showSnack('未找到匹配的面板', 'info');
+        }}
+        onAdd={() => setAddOpen(true)}
+        onOpenVault={() => setVaultOpen(true)}
+        notesOpen={noteOpen}
+        onOpenNotes={() => setNoteOpen(true)}
+        collapsed={collapsed}
+        onToggleSidebar={() => setCollapsed((c) => !c)}
+        onBackHome={() => { window.location.href = '/'; }}
+      />
+
+      <Box sx={{ display: 'flex', flex: 1, minHeight: 0, width: '100%' }}>
+        <Sidebar
+          loading={links === null && !loadError}
+          error={loadError}
+          onRetry={reload}
+          links={links || []}
+          filtered={filteredPanels}
+          search={search}
+          activeId={activeId}
+          pinned={pinned}
+          onSelect={openPanel}
+          onPin={togglePin}
+          groups={groups}
+          onToggleGroup={toggleGroup}
+          modes={panels.modes}
+          onSetMode={setMode}
+          onAdd={() => setAddOpen(true)}
+          collapsed={collapsed}
+        />
+        <Box
+          component="main"
+          sx={{
+            flex: 1, minWidth: 0, display: 'flex', flexDirection: 'column',
+            bgcolor: 'background.default', overflow: 'hidden',
+            // 记事本固定态：右侧占 280px，主内容区推挤
+            mr: noteOpen && noteMode === 'fixed' ? '280px' : 0,
+            transition: 'margin-right .2s ease',
+          }}
+        >
+          {openPanels.length > 0 && (
+            <TabStrip
+              openPanels={openPanels}
+              activeId={activeId}
+              onSelect={openPanel}
+              onClose={closePanel}
+              onAdd={() => setAddOpen(true)}
+            />
+          )}
+          <Box sx={{ flex: 1, minHeight: 0, display: 'flex', position: 'relative' }}>
+            {content}
+          </Box>
+        </Box>
+      </Box>
+
+      <AddPanelDialog
+        open={addOpen}
+        onClose={() => setAddOpen(false)}
+        categories={categories}
+        onSaved={handleSaved}
+        onSetMode={setMode}
+      />
+
+      {/* 密码库抽屉（Lane B 提供完整实现，此处仅挂载） */}
+      <VaultDrawer open={vaultOpen} onClose={() => setVaultOpen(false)} />
+
+      {/* 记事本：float=右下角拖拽浮窗 / fixed=右侧固定栏；保持挂载以保留编辑状态 */}
+      {noteOpen && (
+        <NoteEditor mode={noteMode} onToggleMode={toggleNoteMode} onClose={() => setNoteOpen(false)} />
+      )}
+
+      {/* 弹窗打开方式：Dialog 内嵌 PanelFrame */}
+      {modalPanel && (
+        <Dialog
+          open
+          fullWidth
+          maxWidth="lg"
+          onClose={closeModal}
+          sx={{ '& .MuiDialog-paper': { height: '85vh', maxHeight: '85vh' } }}
+        >
+          <DialogTitle sx={{ display: 'flex', alignItems: 'center', gap: 1, py: 1.5, pr: 1 }}>
+            <PanelIcon url={modalPanel.embed_url || modalPanel.url} title={modalPanel.title} size={22} />
+            <Typography noWrap sx={{ flex: 1, fontSize: 16, fontWeight: 500 }}>
+              {modalPanel.title}
+            </Typography>
+            <Tooltip title="在新标签页打开">
+              <IconButton
+                size="small"
+                onClick={() => window.open(modalPanel.embed_url || modalPanel.url, '_blank', 'noopener')}
+              >
+                <OpenInNewIcon fontSize="small" />
+              </IconButton>
+            </Tooltip>
+            <Tooltip title="刷新">
+              <IconButton size="small" onClick={() => setModalRefresh((n) => n + 1)}>
+                <RefreshIcon fontSize="small" />
+              </IconButton>
+            </Tooltip>
+            <IconButton size="small" onClick={closeModal} aria-label="关闭弹窗">
+              <CloseIcon fontSize="small" />
+            </IconButton>
+          </DialogTitle>
+          <DialogContent sx={{ p: 0, display: 'flex', flex: 1, minHeight: 0 }}>
+            <PanelFrame panel={modalPanel} active refreshNonce={modalRefresh} />
+          </DialogContent>
+        </Dialog>
+      )}
+
+      <SnackHost />
+    </>
+  );
+}
+
+export default function Workbench() {
+  return (
+    <AdminGuard>
+      <Box
+        sx={{
+          display: 'flex', flexDirection: 'column', height: '100vh', overflow: 'hidden',
+          bgcolor: 'background.default',
+        }}
+      >
+        <WorkbenchContent />
+      </Box>
+    </AdminGuard>
+  );
+}

frontend/src/tools/workbench/components/AddPanelDialog.jsx

@@ -0,0 +1,192 @@
+import React, { useMemo, useState } from 'react';
+import Dialog from '@mui/material/Dialog';
+import DialogTitle from '@mui/material/DialogTitle';
+import DialogContent from '@mui/material/DialogContent';
+import DialogActions from '@mui/material/DialogActions';
+import Button from '@mui/material/Button';
+import TextField from '@mui/material/TextField';
+import ToggleButton from '@mui/material/ToggleButton';
+import ToggleButtonGroup from '@mui/material/ToggleButtonGroup';
+import FormControlLabel from '@mui/material/FormControlLabel';
+import Switch from '@mui/material/Switch';
+import Autocomplete from '@mui/material/Autocomplete';
+import Box from '@mui/material/Box';
+import Typography from '@mui/material/Typography';
+import WebAssetIcon from '@mui/icons-material/WebAsset';
+import OpenInNewIcon from '@mui/icons-material/OpenInNew';
+import OpenInFullIcon from '@mui/icons-material/OpenInFull';
+import { createAdminLink } from '../../../api/adminLinks.js';
+import { OPEN_MODE_EMBED, OPEN_MODE_TAB, OPEN_MODE_MODAL } from '../hooks/usePanels.js';
+
+/* ============================================================
+ * AddPanelDialog：添加面板
+ * URL + 标题 + 分组 + favicon 实时预览 + 打开方式（内嵌/新标签/弹窗）
+ * + 嵌入 URL + 代理开关；保存到 admin_links（复用现有 API）
+ * ============================================================ */
+
+const MODE_META = [
+  { mode: OPEN_MODE_EMBED, label: '内嵌', Icon: WebAssetIcon },
+  { mode: OPEN_MODE_TAB, label: '新标签', Icon: OpenInNewIcon },
+  { mode: OPEN_MODE_MODAL, label: '弹窗', Icon: OpenInFullIcon },
+];
+
+function normalizeUrl(raw) {
+  const s = (raw || '').trim();
+  if (!s) return '';
+  return /^[a-z][a-z0-9+.-]*:\/\//i.test(s) ? s : 'https://' + s;
+}
+
+export default function AddPanelDialog({ open, onClose, categories = [], onSaved, onSetMode }) {
+  const [form, setForm] = useState({
+    title: '', url: '', category: '', openMode: OPEN_MODE_EMBED,
+    use_proxy: false, embed_url: '',
+  });
+  const [err, setErr] = useState('');
+
+  const host = useMemo(() => {
+    try { return new URL(normalizeUrl(form.url)).hostname; } catch { return ''; }
+  }, [form.url]);
+
+  const set = (k) => (e) => setForm((p) => ({ ...p, [k]: e.target.value }));
+
+  const save = async () => {
+    const title = form.title.trim();
+    const url = normalizeUrl(form.url);
+    if (!title) { setErr('请输入面板标题'); return; }
+    if (!url) { setErr('请输入面板链接'); return; }
+    try {
+      const panel = await createAdminLink({
+        title,
+        url,
+        embed_url: form.embed_url.trim(),
+        category: form.category.trim() || '默认',
+        use_proxy: form.use_proxy ? 1 : 0,
+        description: '',
+        icon: '',
+        sort_order: 0,
+        version: '',
+      });
+      if (form.openMode !== OPEN_MODE_EMBED) onSetMode(panel.id, form.openMode);
+      setErr('');
+      setForm({ title: '', url: '', category: '', openMode: OPEN_MODE_EMBED, use_proxy: false, embed_url: '' });
+      onSaved(panel);
+    } catch (e) {
+      setErr(e.message || '保存失败');
+    }
+  };
+
+  return (
+    <Dialog open={open} onClose={onClose} fullWidth maxWidth="sm">
+      <DialogTitle>添加面板</DialogTitle>
+      <DialogContent>
+        <TextField
+          fullWidth
+          label="标题 *"
+          value={form.title}
+          onChange={set('title')}
+          margin="normal"
+          placeholder="例如：服务器监控"
+          autoFocus
+        />
+
+        <TextField
+          fullWidth
+          label="链接 URL *"
+          value={form.url}
+          onChange={set('url')}
+          margin="normal"
+          placeholder="example.com 或 https://…"
+          error={!!err && !form.url.trim()}
+        />
+
+        {/* favicon 实时预览 */}
+        <Box sx={{ display: 'flex', alignItems: 'center', gap: 1, mt: 1, mb: 0.5 }}>
+          <Box
+            sx={{
+              width: 32, height: 32, borderRadius: 1.5, border: 1, borderColor: 'divider',
+              display: 'flex', alignItems: 'center', justifyContent: 'center',
+              bgcolor: 'background.paper', overflow: 'hidden',
+            }}
+          >
+            {host ? (
+              <img
+                src={`https://www.google.com/s2/favicons?domain=${encodeURIComponent(host)}&sz=64`}
+                alt=""
+                width={20}
+                height={20}
+                loading="lazy"
+                style={{ display: 'block' }}
+                onError={(e) => { e.target.style.visibility = 'hidden'; }}
+              />
+            ) : (
+              <WebAssetIcon sx={{ fontSize: 18, color: 'text.disabled' }} />
+            )}
+          </Box>
+          <Typography variant="caption" sx={{ color: 'text.secondary' }}>
+            {host ? `站点：${host}` : '输入链接后预览站点图标'}
+          </Typography>
+        </Box>
+
+        <Autocomplete
+          freeSolo
+          fullWidth
+          value={form.category}
+          onChange={(e, v) => setForm((p) => ({ ...p, category: v || '' }))}
+          onInputChange={(e, v) => setForm((p) => ({ ...p, category: v }))}
+          options={categories}
+          renderInput={(params) => (
+            <TextField {...params} label="分组" margin="normal" placeholder="默认" />
+          )}
+        />
+
+        <Typography variant="caption" sx={{ display: 'block', mt: 1, mb: 0.5, color: 'text.secondary' }}>
+          打开方式
+        </Typography>
+        <ToggleButtonGroup
+          exclusive
+          fullWidth
+          size="small"
+          value={form.openMode}
+          onChange={(e, v) => { if (v) setForm((p) => ({ ...p, openMode: v })); }}
+          aria-label="打开方式"
+        >
+          {MODE_META.map(({ mode, label, Icon }) => (
+            <ToggleButton key={mode} value={mode} sx={{ py: 0.75 }}>
+              <Icon fontSize="small" sx={{ mr: 0.5 }} />{label}
+            </ToggleButton>
+          ))}
+        </ToggleButtonGroup>
+
+        {form.openMode === OPEN_MODE_EMBED && (
+          <Box sx={{ mt: 1.5 }}>
+            <FormControlLabel
+              control={
+                <Switch
+                  checked={form.use_proxy}
+                  onChange={(e) => setForm((p) => ({ ...p, use_proxy: e.target.checked }))}
+                />
+              }
+              label="通过代理嵌入（绕过 X-Frame-Options 限制）"
+            />
+            <TextField
+              fullWidth
+              label="嵌入 URL（可选，iframe 专用）"
+              value={form.embed_url}
+              onChange={set('embed_url')}
+              margin="dense"
+              placeholder="留空则使用上面的链接"
+            />
+          </Box>
+        )}
+
+        {err && (
+          <Typography variant="body2" sx={{ mt: 1.5, color: 'error.main' }}>{err}</Typography>
+        )}
+      </DialogContent>
+      <DialogActions>
+        <Button onClick={onClose}>取消</Button>
+        <Button variant="contained" onClick={save}>添加</Button>
+      </DialogActions>
+    </Dialog>
+  );
+}

frontend/src/tools/workbench/components/NoteEditor.jsx

@@ -0,0 +1,359 @@
+import React, { useRef, useState } from 'react';
+import Box from '@mui/material/Box';
+import AppBar from '@mui/material/AppBar';
+import MuiToolbar from '@mui/material/Toolbar';
+import Typography from '@mui/material/Typography';
+import IconButton from '@mui/material/IconButton';
+import Tooltip from '@mui/material/Tooltip';
+import TextField from '@mui/material/TextField';
+import List from '@mui/material/List';
+import CircularProgress from '@mui/material/CircularProgress';
+import Dialog from '@mui/material/Dialog';
+import DialogTitle from '@mui/material/DialogTitle';
+import DialogContent from '@mui/material/DialogContent';
+import DialogActions from '@mui/material/DialogActions';
+import Button from '@mui/material/Button';
+import Menu from '@mui/material/Menu';
+import MenuItem from '@mui/material/MenuItem';
+import NoteAltIcon from '@mui/icons-material/NoteAlt';
+import PushPinIcon from '@mui/icons-material/PushPin';
+import PushPinOutlinedIcon from '@mui/icons-material/PushPinOutlined';
+import CloseIcon from '@mui/icons-material/Close';
+import AddIcon from '@mui/icons-material/Add';
+import DeleteOutlinedIcon from '@mui/icons-material/DeleteOutlined';
+import EditOutlinedIcon from '@mui/icons-material/EditOutlined';
+import ErrorIcon from '@mui/icons-material/Error';
+import useNotes from '../hooks/useNotes.js';
+import ConfirmDialog from '../../../admin/ConfirmDialog.jsx';
+
+/* ============================================================
+ * NoteEditor：工作台「记事本」
+ *
+ * 两种形态（由 mode 切换，组件保持挂载不丢编辑状态）：
+ *  - float：右下角可拖拽浮窗（320×400），标题栏拖动
+ *  - fixed：右侧固定侧边栏（280px，position:fixed top:56），
+ *    主内容区由 Workbench 加 margin-right 推挤
+ *
+ * 布局：顶部工具栏（标题 + 📌 固定/浮窗 + ✕ 关闭）→
+ *       状态条（当前文件 + 保存状态）→ 上半编辑器（textarea 自动保存）
+ *       → 下半文件管理器（列表 + 新建/双击重命名/右键菜单/删除）
+ * ============================================================ */
+
+const FLOAT_W = 320;
+const FLOAT_H = 400;
+
+/* 精简时间格式：今天 HH:mm / 今年 MM-DD / 往年 YYYY-MM-DD */
+function fmtTime(ms) {
+  if (!ms) return '';
+  const d = new Date(ms);
+  const now = new Date();
+  const pad = (n) => String(n).padStart(2, '0');
+  const hm = `${pad(d.getHours())}:${pad(d.getMinutes())}`;
+  if (d.toDateString() === now.toDateString()) return hm;
+  if (d.getFullYear() === now.getFullYear()) return `${pad(d.getMonth() + 1)}-${pad(d.getDate())} ${hm}`;
+  return `${d.getFullYear()}-${pad(d.getMonth() + 1)}-${pad(d.getDate())}`;
+}
+
+/** 新建/重命名弹窗 */
+function NameDialog({ open, title, initial, confirmText, exists, busy, onClose, onConfirm }) {
+  const [value, setValue] = useState(initial);
+  const [err, setErr] = useState('');
+
+  // 每次打开时重置为 initial
+  React.useEffect(() => {
+    if (open) { setValue(initial); setErr(''); }
+  }, [open, initial]);
+
+  const submit = () => {
+    let name = value.trim();
+    if (!name) { setErr('请输入文件名'); return; }
+    if (!name.toLowerCase().endsWith('.txt')) name += '.txt';
+    if (exists.includes(name.toLowerCase())) { setErr('同名笔记已存在'); return; }
+    onConfirm(name);
+  };
+
+  return (
+    <Dialog open={open} onClose={onClose} fullWidth maxWidth="xs">
+      <DialogTitle>{title}</DialogTitle>
+      <DialogContent>
+        <TextField
+          fullWidth
+          autoFocus
+          size="small"
+          label="文件名"
+          value={value}
+          onChange={(e) => { setValue(e.target.value); setErr(''); }}
+          onKeyDown={(e) => { if (e.key === 'Enter') submit(); }}
+          error={!!err}
+          helperText={err || '仅支持 .txt 文本文件'}
+          inputProps={{ style: { fontSize: 14 } }}
+        />
+      </DialogContent>
+      <DialogActions>
+        <Button onClick={onClose}>取消</Button>
+        <Button variant="contained" disabled={busy} onClick={submit}>{confirmText}</Button>
+      </DialogActions>
+    </Dialog>
+  );
+}
+
+export default function NoteEditor({ mode = 'float', onToggleMode, onClose }) {
+  const notes = useNotes();
+  const {
+    notes: list, loadError, refresh,
+    activeName, content, dirty, saving, busy,
+    open, updateContent, saveNow, create, rename, remove, nextUntitled,
+  } = notes;
+
+  // ── 浮窗拖拽（标题栏） ──
+  const [pos, setPos] = useState(() => ({
+    x: Math.max(0, (typeof window !== 'undefined' ? window.innerWidth : 1200) - FLOAT_W - 16),
+    y: Math.max(0, (typeof window !== 'undefined' ? window.innerHeight : 800) - FLOAT_H - 72),
+  }));
+  const dragRef = useRef(null);
+  const startDrag = (e) => {
+    if (mode !== 'float') return;
+    if (e.target.closest('button')) return; // 不拦截按钮
+    e.preventDefault();
+    const startX = e.clientX;
+    const startY = e.clientY;
+    const base = pos;
+    dragRef.current = (ev) => {
+      const x = Math.min(Math.max(0, base.x + ev.clientX - startX), window.innerWidth - FLOAT_W);
+      const y = Math.min(Math.max(0, base.y + ev.clientY - startY), window.innerHeight - 56);
+      setPos({ x, y });
+    };
+    window.addEventListener('mousemove', dragRef.current);
+    window.addEventListener('mouseup', endDrag);
+  };
+  const endDrag = () => {
+    window.removeEventListener('mousemove', dragRef.current);
+    window.removeEventListener('mouseup', endDrag);
+    dragRef.current = null;
+  };
+
+  // ── 弹窗/菜单状态 ──
+  const [newOpen, setNewOpen] = useState(false);
+  const [renameTarget, setRenameTarget] = useState(null);
+  const [delTarget, setDelTarget] = useState(null);
+  const [ctx, setCtx] = useState(null); // { name, anchorEl }
+
+  const handleCreate = (name) => {
+    setNewOpen(false);
+    create(name);
+  };
+  const handleRename = (name) => {
+    setRenameTarget(null);
+    rename(ctx?.name || renameTarget, name);
+  };
+  const handleDelete = async () => {
+    const name = delTarget;
+    setDelTarget(null);
+    await remove(name);
+  };
+
+  const statusText = saving ? '保存中…' : dirty ? '未保存' : '已保存';
+
+  // ── 头部工具栏（共享） ──
+  const header = (
+    <AppBar position="static" elevation={0}
+      sx={{
+        flexShrink: 0, cursor: mode === 'float' ? 'grab' : 'default',
+        '&:active': { cursor: mode === 'float' ? 'grabbing' : 'default' },
+        borderRadius: 0,
+      }}
+    >
+      <MuiToolbar variant="dense" sx={{ minHeight: 44, px: 1, gap: 0.25, cursor: 'inherit' }} onMouseDown={startDrag}>
+        <NoteAltIcon sx={{ fontSize: 18, color: 'primary.main' }} />
+        <Typography sx={{ flex: 1, fontSize: 14, fontWeight: 600, ml: 0.5 }}>记事本</Typography>
+        <Tooltip title={mode === 'float' ? '固定到右侧' : '收回为浮窗'}>
+          <IconButton size="small" onMouseDown={(e) => e.stopPropagation()} onClick={onToggleMode} aria-label="固定/浮窗切换">
+            {mode === 'float' ? <PushPinOutlinedIcon fontSize="small" /> : <PushPinIcon fontSize="small" />}
+          </IconButton>
+        </Tooltip>
+        <Tooltip title="关闭记事本">
+          <IconButton size="small" onMouseDown={(e) => e.stopPropagation()} onClick={onClose} aria-label="关闭记事本">
+            <CloseIcon fontSize="small" />
+          </IconButton>
+        </Tooltip>
+      </MuiToolbar>
+    </AppBar>
+  );
+
+  // ── 状态条（当前文件 + 保存状态） ──
+  const statusBar = (
+    <Box sx={{ px: 1.5, py: 0.5, display: 'flex', alignItems: 'center', gap: 1, bgcolor: 'background.default', borderBottom: 1, borderColor: 'divider', flexShrink: 0 }}>
+      <Typography variant="caption" noWrap sx={{ flex: 1, color: 'text.secondary' }} title={activeName || ''}>
+        {activeName || '未打开笔记'}
+      </Typography>
+      <Typography variant="caption" sx={{ flexShrink: 0, color: saving ? 'text.secondary' : dirty ? 'warning.main' : 'success.main', fontWeight: 500 }}>
+        {statusText}
+      </Typography>
+    </Box>
+  );
+
+  // ── 编辑器（上半） ──
+  const editor = (
+    <Box sx={{ flex: 1, minHeight: 0, display: 'flex', p: 0.5 }}>
+      <TextField
+        fullWidth
+        multiline
+        variant="outlined"
+        value={content}
+        onChange={(e) => updateContent(e.target.value)}
+        onKeyDown={(e) => {
+          if ((e.ctrlKey || e.metaKey) && e.key.toLowerCase() === 's') { e.preventDefault(); saveNow(); }
+        }}
+        disabled={!activeName || busy}
+        placeholder={activeName ? '开始输入…（自动保存，Ctrl+S 立即保存）' : '从下方选择或新建一篇笔记'}
+        inputProps={{ 'aria-label': '笔记内容', style: { fontSize: 13, lineHeight: 1.6 } }}
+        sx={{
+          flex: 1, minHeight: 0,
+          '& .MuiInputBase-root': { height: '100%', alignItems: 'flex-start', borderRadius: 1 },
+          '& .MuiInputBase-inputMultiline': { height: '100% !important', overflow: 'auto !important', boxSizing: 'border-box' },
+        }}
+      />
+    </Box>
+  );
+
+  // ── 文件管理器（下半） ──
+  const fileManager = (
+    <Box sx={{ flex: 1, minHeight: 0, display: 'flex', flexDirection: 'column', borderTop: 1, borderColor: 'divider' }}>
+      <Box sx={{ display: 'flex', alignItems: 'center', px: 1.25, py: 0.5, flexShrink: 0 }}>
+        <Typography sx={{ flex: 1, fontSize: 11, fontWeight: 700, letterSpacing: 0.5, color: 'text.secondary' }}>
+          笔记（{list ? list.length : 0}）
+        </Typography>
+        <Tooltip title="新建笔记">
+          <IconButton size="small" onClick={() => setNewOpen(true)} aria-label="新建笔记"><AddIcon fontSize="small" /></IconButton>
+        </Tooltip>
+      </Box>
+      <Box sx={{ flex: 1, minHeight: 0, overflowY: 'auto', overflowX: 'hidden' }}>
+        {list === null && !loadError ? (
+          <Box sx={{ display: 'flex', justifyContent: 'center', py: 2 }}><CircularProgress size={20} /></Box>
+        ) : loadError ? (
+          <Box sx={{ px: 2, py: 2, textAlign: 'center' }}>
+            <ErrorIcon sx={{ fontSize: 24, color: 'error.main', mb: 0.5 }} />
+            <Typography variant="caption" sx={{ color: 'text.secondary', display: 'block', mb: 0.5 }}>{loadError}</Typography>
+            <Button size="small" variant="outlined" onClick={refresh}>重试</Button>
+          </Box>
+        ) : list.length === 0 ? (
+          <Box sx={{ px: 2, py: 3, textAlign: 'center' }}>
+            <NoteAltIcon sx={{ fontSize: 28, color: 'text.disabled', mb: 0.5 }} />
+            <Typography variant="caption" sx={{ color: 'text.secondary', display: 'block' }}>暂无笔记，点击上方 ＋ 新建</Typography>
+          </Box>
+        ) : (
+          <List dense disablePadding>
+            {list.map((n) => {
+              const active = n.name === activeName;
+              return (
+                <Box
+                  key={n.name}
+                  onClick={() => open(n.name)}
+                  onDoubleClick={() => setRenameTarget(n.name)}
+                  onContextMenu={(e) => { e.preventDefault(); setCtx({ name: n.name, anchorEl: e.currentTarget }); }}
+                  sx={{
+                    display: 'flex', alignItems: 'center', cursor: 'pointer', minHeight: 40,
+                    bgcolor: active ? 'primary.container' : 'transparent',
+                    color: active ? 'primary.onContainer' : 'text.primary',
+                    '&:hover': { bgcolor: active ? 'primary.container' : 'action.hover' },
+                    '&:hover .nb-del': { opacity: 1 },
+                  }}
+                >
+                  <NoteAltIcon fontSize="small" sx={{ mx: 1, flexShrink: 0, opacity: 0.7 }} />
+                  <Box sx={{ flex: 1, minWidth: 0, py: 0.5 }}>
+                    <Typography noWrap sx={{ fontSize: 12.5, fontWeight: active ? 600 : 500 }}>{n.name}</Typography>
+                    <Typography variant="caption" sx={{ color: 'text.disabled', fontSize: 10 }}>
+                      {fmtTime(n.mtime)}
+                    </Typography>
+                  </Box>
+                  <IconButton
+                    className="nb-del"
+                    size="small"
+                    onClick={(e) => { e.stopPropagation(); setDelTarget(n.name); }}
+                    aria-label={`删除 ${n.name}`}
+                    sx={{ opacity: 0, width: 26, height: 26, mr: 0.5, transition: 'opacity .12s' }}
+                  >
+                    <CloseIcon fontSize="small" />
+                  </IconButton>
+                </Box>
+              );
+            })}
+          </List>
+        )}
+      </Box>
+    </Box>
+  );
+
+  // ── 右键菜单 ──
+  const ctxMenu = (
+    <Menu
+      open={!!ctx}
+      anchorEl={ctx?.anchorEl || null}
+      onClose={() => setCtx(null)}
+      anchorOrigin={{ vertical: 'bottom', horizontal: 'right' }}
+    >
+      <MenuItem dense onClick={() => { if (ctx) setRenameTarget(ctx.name); setCtx(null); }}>
+        <EditOutlinedIcon fontSize="small" sx={{ mr: 1, color: 'text.secondary' }} />重命名
+      </MenuItem>
+      <MenuItem dense onClick={() => { if (ctx) setDelTarget(ctx.name); setCtx(null); }}>
+        <DeleteOutlinedIcon fontSize="small" sx={{ mr: 1, color: 'error.main' }} />删除
+      </MenuItem>
+    </Menu>
+  );
+
+  const existsList = (list || []).map((n) => n.name.toLowerCase());
+
+  const rootSx = mode === 'float'
+    ? {
+        position: 'fixed', left: pos.x, top: pos.y,
+        width: FLOAT_W, height: FLOAT_H, zIndex: 1240, // 低于 MUI Dialog(1300)，不遮挡弹窗
+        borderRadius: 2, overflow: 'hidden',
+        bgcolor: 'background.paper', border: 1, borderColor: 'divider',
+        boxShadow: (t) => t.shadows[8], display: 'flex', flexDirection: 'column',
+      }
+    : {
+        position: 'fixed', top: 56, right: 0, bottom: 0,
+        width: 280, zIndex: 1100,
+        bgcolor: 'background.paper', borderLeft: 1, borderColor: 'divider',
+        display: 'flex', flexDirection: 'column',
+      };
+
+  return (
+    <Box component="section" aria-label="记事本" sx={rootSx}>
+      {header}
+      {statusBar}
+      {editor}
+      {fileManager}
+      {ctxMenu}
+
+      <NameDialog
+        open={newOpen}
+        title="新建笔记"
+        initial={nextUntitled}
+        confirmText="创建"
+        exists={existsList}
+        busy={busy}
+        onClose={() => setNewOpen(false)}
+        onConfirm={handleCreate}
+      />
+      <NameDialog
+        open={!!renameTarget}
+        title="重命名笔记"
+        initial={renameTarget || ''}
+        confirmText="保存"
+        exists={existsList.filter((n) => n !== renameTarget?.toLowerCase())}
+        busy={busy}
+        onClose={() => setRenameTarget(null)}
+        onConfirm={handleRename}
+      />
+      <ConfirmDialog
+        open={!!delTarget}
+        title="删除笔记"
+        message={`确定要删除 "${delTarget || ''}" 吗？此操作不可恢复。`}
+        onClose={() => setDelTarget(null)}
+        onConfirm={handleDelete}
+        confirmText="删除"
+      />
+    </Box>
+  );
+}

frontend/src/tools/workbench/components/PanelFrame.jsx

@@ -0,0 +1,266 @@
+import React, { useEffect, useRef, useState } from 'react';
+import Box from '@mui/material/Box';
+import CircularProgress from '@mui/material/CircularProgress';
+import Typography from '@mui/material/Typography';
+import Button from '@mui/material/Button';
+import Stack from '@mui/material/Stack';
+import IconButton from '@mui/material/IconButton';
+import OpenInNewIcon from '@mui/icons-material/OpenInNew';
+import RefreshIcon from '@mui/icons-material/Refresh';
+import ErrorIcon from '@mui/icons-material/Error';
+import CloseIcon from '@mui/icons-material/Close';
+import { getToken } from '../../../api/client.js';
+
+/* ============================================================
+ * PanelFrame：单个面板的 iframe 容器
+ *
+ * - 懒加载：首次激活才创建 iframe DOM，之后 display:none 保留状态
+ * - 超时 + load 双保险：加载中显示覆盖层；超时（X-Frame-Options
+ *   拒绝 / 目标无响应）显示失败提示 + 「在新标签页打开」回退
+ * - proxy 模式：use_proxy=1 或 HTTPS 页内嵌 HTTP 目标时走
+ *   /api/proxy/fetch?url=&token=（proxy 剥 X-Frame-Options/CSP）。
+ *   token 用 /api/proxy/token 签发的 5 分钟短 TTL JWT，避免把 7 天
+ *   主 token 暴露在 iframe URL 中（模块级缓存，4 分钟刷新一次）。
+ * - 站内 URL（/ 开头）为同源内容：剥离 allow-same-origin 防其访问
+ *   父页面 DOM；跨源面板保留 allow-same-origin（多数站点依赖）。
+ * - LRU 由父级 Workbench 控制挂载/卸载（此组件不自行卸载）
+ * ============================================================ */
+
+const LOAD_TIMEOUT_MS = 15000;
+const TOKEN_TTL_MS = 4 * 60 * 1000;   // 缓存 4 分钟（短 token 5 分钟有效）
+const HINT_TTL_MS = 5000;             // 加载成功后的「空白？新标签打开」提示条 5 秒自动消失
+
+/* 短 TTL proxy token 的模块级缓存：多个 PanelFrame 共享，避免每帧都请求 */
+let proxyTokenCache = { promise: null, expiresAt: 0 };
+
+function fetchProxyToken() {
+  const now = Date.now();
+  if (proxyTokenCache.promise && now < proxyTokenCache.expiresAt) return proxyTokenCache.promise;
+  const p = fetch('/api/proxy/token', {
+    headers: { Authorization: 'Bearer ' + (getToken() || '') },
+  })
+    .then(async (res) => {
+      if (!res.ok) throw new Error('proxy token 获取失败');
+      const data = await res.json();
+      return data.token;
+    })
+    .catch((e) => {
+      proxyTokenCache.promise = null;
+      throw e;
+    });
+  proxyTokenCache.promise = p;
+  proxyTokenCache.expiresAt = now + TOKEN_TTL_MS;
+  return p;
+}
+
+export default function PanelFrame({ panel, active = false, refreshNonce = 0 }) {
+  const [mounted, setMounted] = useState(active);
+  const [status, setStatus] = useState('loading'); // loading | loaded | timeout
+  const [proxySrc, setProxySrc] = useState('');
+  const [showHint, setShowHint] = useState(false);
+  const iframeRef = useRef(null);
+  const timerRef = useRef(null);
+  const hintTimerRef = useRef(null);
+  const statusRef = useRef('loading');
+
+  const targetUrl = panel.embed_url || panel.url || '';
+  const isHttpsPage = typeof window !== 'undefined' && window.location.protocol === 'https:';
+  const needsProxy = !!panel.use_proxy || (isHttpsPage && targetUrl.startsWith('http:'));
+  // 站内 URL（同源内容）：沙箱剥离 allow-same-origin，内容无法操作父页面 DOM
+  const isInternal = targetUrl.startsWith('/');
+  const sandbox = isInternal
+    ? 'allow-scripts allow-forms allow-popups allow-popups-to-escape-sandbox'
+    : 'allow-scripts allow-same-origin allow-forms allow-popups allow-popups-to-escape-sandbox';
+
+  // proxy 模式：先取 5 分钟短 TTL token 再拼 iframe URL（失败进入超时回退态）
+  useEffect(() => {
+    let alive = true;
+    if (!needsProxy) { setProxySrc(targetUrl); return () => { alive = false; }; }
+    setProxySrc('');
+    fetchProxyToken()
+      .then((tok) => {
+        if (alive) {
+          setProxySrc('/api/proxy/fetch?url=' + encodeURIComponent(targetUrl) + '&token=' + encodeURIComponent(tok));
+        }
+      })
+      .catch(() => {
+        if (alive) {
+          statusRef.current = 'timeout';
+          setStatus('timeout');
+        }
+      });
+    return () => { alive = false; };
+  }, [needsProxy, targetUrl]);
+
+  const src = needsProxy ? proxySrc : targetUrl;
+
+  // 懒加载：首次激活才创建 iframe
+  useEffect(() => {
+    if (active) setMounted(true);
+  }, [active]);
+
+  const startTimer = () => {
+    clearTimeout(timerRef.current);
+    timerRef.current = setTimeout(() => {
+      if (statusRef.current === 'loading') {
+        statusRef.current = 'timeout';
+        setStatus('timeout');
+      }
+    }, LOAD_TIMEOUT_MS);
+  };
+
+  // 挂载 / 地址变化：进入加载态并启动超时
+  useEffect(() => {
+    if (!mounted || !src) return;
+    statusRef.current = 'loading';
+    setStatus('loading');
+    setShowHint(false);
+    startTimer();
+    return () => clearTimeout(timerRef.current);
+  }, [mounted, src]);
+
+  // 刷新信号（工具栏 ↻）：仅对激活面板 reload，且重新进入加载态
+  const lastNonce = useRef(refreshNonce);
+  useEffect(() => {
+    if (!active || refreshNonce === lastNonce.current) return;
+    lastNonce.current = refreshNonce;
+    const iframe = iframeRef.current;
+    if (!iframe || !src) return;
+    statusRef.current = 'loading';
+    setStatus('loading');
+    startTimer();
+    try { iframe.contentWindow.location.reload(); }
+    catch { iframe.src = iframe.src; }
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [refreshNonce]);
+
+  const handleLoad = () => {
+    clearTimeout(timerRef.current);
+    statusRef.current = 'loaded';
+    setStatus('loaded');
+    // 直接嵌入（非 proxy）时，加载成功仍可能被 X-Frame-Options 拒成空白页，
+    // 浮动提示「在新标签打开」；非阻塞，5 秒自动消失或可关闭。
+    if (!needsProxy) {
+      setShowHint(true);
+      clearTimeout(hintTimerRef.current);
+      hintTimerRef.current = setTimeout(() => setShowHint(false), HINT_TTL_MS);
+    }
+  };
+
+  const handleRetry = () => {
+    const iframe = iframeRef.current;
+    if (!iframe || !src) return;
+    statusRef.current = 'loading';
+    setStatus('loading');
+    startTimer();
+    try { iframe.contentWindow.location.reload(); }
+    catch { iframe.src = iframe.src; }
+  };
+
+  useEffect(() => () => { clearTimeout(hintTimerRef.current); }, []);
+
+  return (
+    <Box
+      sx={{
+        position: 'relative', width: '100%', height: '100%', overflow: 'hidden',
+        display: active ? 'block' : 'none', bgcolor: '#ffffff', flexShrink: 0,
+      }}
+    >
+      {mounted && (
+        <iframe
+          ref={iframeRef}
+          title={panel.title || '面板'}
+          src={src}
+          onLoad={handleLoad}
+          sandbox={sandbox}
+          allow="fullscreen; accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture"
+          style={{ width: '100%', height: '100%', border: 'none', display: 'block', background: '#fff' }}
+        />
+      )}
+
+      {status === 'loading' && (
+        <Box
+          sx={{
+            position: 'absolute', inset: 0, zIndex: 2, display: 'flex',
+            flexDirection: 'column', alignItems: 'center', justifyContent: 'center', gap: 1.5,
+            bgcolor: 'background.default',
+          }}
+        >
+          <CircularProgress size={32} />
+          <Typography variant="caption" sx={{ color: 'text.secondary' }}>
+            正在加载 {panel.title || '面板'}…
+          </Typography>
+        </Box>
+      )}
+
+      {status === 'timeout' && (
+        <Box
+          sx={{
+            position: 'absolute', inset: 0, zIndex: 2, display: 'flex',
+            flexDirection: 'column', alignItems: 'center', justifyContent: 'center', gap: 2,
+            bgcolor: 'background.default', px: 3, textAlign: 'center',
+          }}
+        >
+          <ErrorIcon sx={{ fontSize: 40, color: 'text.disabled' }} />
+          <Box>
+            <Typography sx={{ fontWeight: 600, mb: 0.5 }}>面板加载超时</Typography>
+            <Typography variant="body2" sx={{ color: 'text.secondary' }}>
+              目标站点可能拒绝嵌入（X-Frame-Options），或响应过慢。
+            </Typography>
+          </Box>
+          <Stack direction="row" spacing={1}>
+            <Button
+              size="small"
+              variant="outlined"
+              startIcon={<OpenInNewIcon fontSize="small" />}
+              href={targetUrl}
+              target="_blank"
+              rel="noopener"
+            >
+              在新标签页打开
+            </Button>
+            <Button
+              size="small"
+              variant="text"
+              startIcon={<RefreshIcon fontSize="small" />}
+              onClick={handleRetry}
+            >
+              重试
+            </Button>
+          </Stack>
+        </Box>
+      )}
+
+      {/* 加载成功后的非阻塞提示条：空白页可能被 X-Frame-Options 拒绝 */}
+      {showHint && status === 'loaded' && !needsProxy && (
+        <Box
+          role="status"
+          sx={{
+            position: 'absolute', left: '50%', transform: 'translateX(-50%)', bottom: 16,
+            zIndex: 3, maxWidth: '92%', display: 'flex', alignItems: 'center', gap: 0.5,
+            px: 1.5, py: 0.5, borderRadius: 2,
+            bgcolor: 'primary.container', color: 'primary.onContainer',
+            border: 1, borderColor: 'divider', boxShadow: (t) => t.shadows[3],
+          }}
+        >
+          <Typography variant="caption" sx={{ fontWeight: 500 }}>
+            若页面空白，可能被 X-Frame-Options 拒绝
+          </Typography>
+          <Button
+            size="small"
+            component="a"
+            href={targetUrl}
+            target="_blank"
+            rel="noopener"
+            sx={{ minHeight: 28, px: 1, color: 'primary.onContainer', fontWeight: 700 }}
+          >
+            在新标签打开
+          </Button>
+          <IconButton size="small" onClick={() => setShowHint(false)} aria-label="关闭提示" sx={{ color: 'inherit' }}>
+            <CloseIcon fontSize="small" />
+          </IconButton>
+        </Box>
+      )}
+    </Box>
+  );
+}

frontend/src/tools/workbench/components/PanelIcon.jsx

@@ -0,0 +1,61 @@
+import React, { useState } from 'react';
+import Box from '@mui/material/Box';
+import LanguageIcon from '@mui/icons-material/Language';
+
+/* ============================================================
+ * 面板图标：Google favicon 服务 + 失败回退（首字母块 / 地球图标）
+ * ============================================================ */
+
+function hostOf(url) {
+  try {
+    const u = /^[a-z][a-z0-9+.-]*:\/\//i.test(url) ? url : 'https://' + url;
+    return new URL(u).hostname;
+  } catch { return ''; }
+}
+
+export default function PanelIcon({ url, title = '', size = 20, sx = {} }) {
+  const [error, setError] = useState(false);
+  const host = hostOf(url);
+
+  if (!host) {
+    return (
+      <Box
+        aria-hidden
+        sx={{
+          width: size, height: size, borderRadius: '50%', flexShrink: 0,
+          display: 'flex', alignItems: 'center', justifyContent: 'center',
+          bgcolor: 'primary.container', color: 'primary.onContainer',
+          fontSize: size * 0.55, fontWeight: 600, lineHeight: 1,
+          ...sx,
+        }}
+      >
+        {(title[0] || '?').toUpperCase()}
+      </Box>
+    );
+  }
+
+  return (
+    <Box
+      aria-hidden
+      sx={{
+        width: size, height: size, borderRadius: size / 4, overflow: 'hidden',
+        flexShrink: 0, display: 'flex', alignItems: 'center', justifyContent: 'center',
+        bgcolor: 'background.paper', ...sx,
+      }}
+    >
+      {error ? (
+        <LanguageIcon sx={{ fontSize: size * 0.7, color: 'text.disabled' }} />
+      ) : (
+        <img
+          src={`https://www.google.com/s2/favicons?domain=${encodeURIComponent(host)}&sz=64`}
+          alt=""
+          width={size}
+          height={size}
+          loading="lazy"
+          onError={() => setError(true)}
+          style={{ display: 'block' }}
+        />
+      )}
+    </Box>
+  );
+}

frontend/src/tools/workbench/components/Sidebar.jsx

@@ -0,0 +1,340 @@
+import React, { Fragment, useEffect, useMemo, useRef, useState } from 'react';
+import Box from '@mui/material/Box';
+import List from '@mui/material/List';
+import ListItemButton from '@mui/material/ListItemButton';
+import ListItemText from '@mui/material/ListItemText';
+import ListItemIcon from '@mui/material/ListItemIcon';
+import Collapse from '@mui/material/Collapse';
+import Divider from '@mui/material/Divider';
+import IconButton from '@mui/material/IconButton';
+import Button from '@mui/material/Button';
+import Menu from '@mui/material/Menu';
+import MenuItem from '@mui/material/MenuItem';
+import Typography from '@mui/material/Typography';
+import Skeleton from '@mui/material/Skeleton';
+import StarIcon from '@mui/icons-material/Star';
+import StarBorderIcon from '@mui/icons-material/StarBorder';
+import ExpandLessIcon from '@mui/icons-material/ExpandLess';
+import ExpandMoreIcon from '@mui/icons-material/ExpandMore';
+import FolderOpenIcon from '@mui/icons-material/FolderOpen';
+import AddIcon from '@mui/icons-material/Add';
+import OpenInNewIcon from '@mui/icons-material/OpenInNew';
+import WebAssetIcon from '@mui/icons-material/WebAsset';
+import OpenInFullIcon from '@mui/icons-material/OpenInFull';
+import WidgetsIcon from '@mui/icons-material/Widgets';
+import ErrorIcon from '@mui/icons-material/Error';
+import PanelIcon from './PanelIcon.jsx';
+import { OPEN_MODE_EMBED, OPEN_MODE_TAB, OPEN_MODE_MODAL } from '../hooks/usePanels.js';
+
+/* ============================================================
+ * Sidebar：左侧面板列表（默认 240px，可拖拽 180-360px 并记忆）
+ * - 固定区（pin，localStorage）+ admin_links 按 category 分组
+ * - 当前项：左侧 2px primary 指示条 + primary-container 选中底
+ * - 分组折叠（持久化）、右键切换打开方式、底部 ＋ 添加
+ * - 搜索时展示扁平结果列表
+ * ============================================================ */
+
+const WIDTH_KEY = 'workbench.sidebarWidth';
+const MODE_META = [
+  { mode: OPEN_MODE_EMBED, label: '内嵌打开', Icon: WebAssetIcon },
+  { mode: OPEN_MODE_TAB, label: '新标签打开', Icon: OpenInNewIcon },
+  { mode: OPEN_MODE_MODAL, label: '弹窗打开', Icon: OpenInFullIcon },
+];
+
+export default function Sidebar({
+  loading = false, error = '', onRetry,
+  links = [], filtered = [], search = '',
+  activeId = null, pinned = [], onSelect, onPin,
+  groups = {}, onToggleGroup,
+  modes = {}, onSetMode,
+  onAdd, collapsed = false,
+}) {
+  const [width, setWidth] = useState(() => {
+    const w = Number(localStorage.getItem(WIDTH_KEY));
+    return w >= 180 && w <= 360 ? w : 240;
+  });
+  const [dragging, setDragging] = useState(false);
+  const dragRef = useRef(null);
+
+  useEffect(() => {
+    try { localStorage.setItem(WIDTH_KEY, String(width)); } catch { /* ignore */ }
+  }, [width]);
+
+  const handleDown = (e) => {
+    e.preventDefault();
+    const startX = e.clientX;
+    const startW = width;
+    setDragging(true);
+    dragRef.current = (ev) => {
+      const w = Math.min(360, Math.max(180, startW + ev.clientX - startX));
+      setWidth(w);
+    };
+    window.addEventListener('mousemove', dragRef.current);
+    window.addEventListener('mouseup', handleUp);
+  };
+
+  const handleUp = () => {
+    window.removeEventListener('mousemove', dragRef.current);
+    window.removeEventListener('mouseup', handleUp);
+    dragRef.current = null;
+    setDragging(false);
+  };
+
+  // 右键菜单：切换打开方式
+  const [ctx, setCtx] = useState(null); // { id, anchorEl }
+
+  // 分组
+  const groupOrder = useMemo(() => {
+    const order = []; const seen = new Set();
+    links.forEach((p) => {
+      const c = p.category || '默认';
+      if (!seen.has(c)) { seen.add(c); order.push(c); }
+    });
+    return order;
+  }, [links]);
+
+  const byGroup = useMemo(() => {
+    const m = {};
+    links.forEach((p) => {
+      const c = p.category || '默认';
+      (m[c] = m[c] || []).push(p);
+    });
+    return m;
+  }, [links]);
+
+  const pinnedPanels = links.filter((p) => pinned.includes(p.id));
+
+  const renderItem = (p) => {
+    const selected = String(p.id) === String(activeId);
+    const isPinned = pinned.includes(p.id);
+    const mode = modes[p.id] || OPEN_MODE_EMBED;
+    return (
+      <Box
+        key={p.id}
+        sx={{
+          display: 'flex', alignItems: 'center', position: 'relative',
+          '&:hover .wb-pin': { opacity: 1 },
+        }}
+      >
+        <ListItemButton
+          selected={selected}
+          onClick={() => onSelect(p.id)}
+          onContextMenu={(e) => { e.preventDefault(); setCtx({ id: p.id, anchorEl: e.currentTarget }); }}
+          aria-label={`打开面板 ${p.title}`}
+          sx={{
+            flex: 1, minHeight: 40, borderRadius: 0, m: 0, pl: 2, pr: 4,
+            position: 'relative',
+            '&.Mui-selected': {
+              bgcolor: 'primary.container', color: 'primary.onContainer',
+              '&:hover': { bgcolor: 'primary.container' },
+            },
+            '&:hover': { bgcolor: 'action.hover' },
+          }}
+        >
+          {selected && (
+            <Box
+              aria-hidden
+              sx={{
+                position: 'absolute', left: 0, top: '22%', bottom: '22%',
+                width: 2, bgcolor: 'primary.main', borderRadius: 1,
+              }}
+            />
+          )}
+          <PanelIcon url={p.embed_url || p.url} title={p.title} size={20} sx={{ mr: 1 }} />
+          <ListItemText
+            primary={p.title}
+            primaryTypographyProps={{ fontSize: 13, fontWeight: selected ? 600 : 500, noWrap: true }}
+            sx={{ my: 0, minWidth: 0 }}
+          />
+          {mode !== OPEN_MODE_EMBED && (
+            <Box
+              component="span"
+              title={MODE_META.find((m) => m.mode === mode)?.label}
+              sx={{ mr: 0.5, fontSize: 10, color: 'text.disabled', whiteSpace: 'nowrap' }}
+            >
+              {mode === OPEN_MODE_TAB ? '新标签' : '弹窗'}
+            </Box>
+          )}
+        </ListItemButton>
+        <IconButton
+          className="wb-pin"
+          size="small"
+          onClick={() => onPin(p.id)}
+          aria-label={isPinned ? `取消固定 ${p.title}` : `固定 ${p.title}`}
+          sx={{
+            position: 'absolute', right: 4, opacity: isPinned ? 1 : 0,
+            transition: 'opacity .12s ease', color: isPinned ? 'warning.main' : 'text.secondary',
+          }}
+        >
+          {isPinned ? <StarIcon fontSize="small" /> : <StarBorderIcon fontSize="small" />}
+        </IconButton>
+      </Box>
+    );
+  };
+
+  const sectionLabel = (text) => (
+    <Typography
+      component="div"
+      sx={{
+        px: 2, pt: 1.25, pb: 0.5, fontSize: 11, fontWeight: 700,
+        letterSpacing: 0.6, color: 'text.secondary',
+      }}
+    >
+      {text}
+    </Typography>
+  );
+
+  const listBody = (() => {
+    if (loading) {
+      return (
+        <Box sx={{ px: 2, pt: 1 }}>
+          {[0, 1, 2, 3, 4, 5].map((i) => (
+            <Skeleton key={i} variant="rounded" height={36} sx={{ my: 1, bgcolor: 'action.hover' }} />
+          ))}
+        </Box>
+      );
+    }
+    if (error) {
+      return (
+        <Box sx={{ px: 3, py: 4, textAlign: 'center' }}>
+          <ErrorIcon sx={{ fontSize: 32, color: 'error.main', mb: 1 }} />
+          <Typography variant="body2" sx={{ color: 'text.secondary', mb: 1.5 }}>面板加载失败</Typography>
+          <Button size="small" variant="outlined" onClick={onRetry}>重试</Button>
+        </Box>
+      );
+    }
+    if (links.length === 0) {
+      return (
+        <Box sx={{ px: 3, py: 4, textAlign: 'center' }}>
+          <WidgetsIcon sx={{ fontSize: 32, color: 'text.disabled', mb: 1 }} />
+          <Typography variant="body2" sx={{ color: 'text.secondary' }}>还没有面板，点击下方按钮添加</Typography>
+        </Box>
+      );
+    }
+    if (search.trim()) {
+      return (
+        <>
+          {sectionLabel(`搜索结果（${filtered.length}）`)}
+          {filtered.length === 0 ? (
+            <Typography variant="body2" sx={{ px: 2, py: 2, color: 'text.secondary' }}>无匹配面板</Typography>
+          ) : (
+            <List dense disablePadding>{filtered.map(renderItem)}</List>
+          )}
+        </>
+      );
+    }
+    return (
+      <>
+        {pinnedPanels.length > 0 && (
+          <>
+            {sectionLabel('固定')}
+            <List dense disablePadding>{pinnedPanels.map(renderItem)}</List>
+            <Divider sx={{ mx: 2, my: 0.5 }} />
+          </>
+        )}
+        {groupOrder.map((name) => {
+          const collapsedGroup = !!groups[name];
+          const items = byGroup[name] || [];
+          return (
+            <Fragment key={name}>
+              <ListItemButton
+                onClick={() => onToggleGroup(name)}
+                aria-expanded={!collapsedGroup}
+                sx={{
+                  minHeight: 36, borderRadius: 0, m: 0, px: 1.5,
+                  '&:hover': { bgcolor: 'action.hover' },
+                }}
+              >
+                <ListItemIcon sx={{ minWidth: 30 }}>
+                  <FolderOpenIcon fontSize="small" sx={{ color: 'text.secondary' }} />
+                </ListItemIcon>
+                <ListItemText
+                  primary={name}
+                  primaryTypographyProps={{ fontSize: 12, fontWeight: 700, letterSpacing: 0.4, color: 'text.secondary' }}
+                  sx={{ my: 0 }}
+                />
+                <Typography variant="caption" sx={{ mr: 0.5, color: 'text.disabled' }}>{items.length}</Typography>
+                {collapsedGroup
+                  ? <ExpandMoreIcon fontSize="small" sx={{ color: 'text.secondary' }} />
+                  : <ExpandLessIcon fontSize="small" sx={{ color: 'text.secondary' }} />}
+              </ListItemButton>
+              <Collapse in={!collapsedGroup} unmountOnExit timeout={150}>
+                <List dense disablePadding>{items.map(renderItem)}</List>
+              </Collapse>
+            </Fragment>
+          );
+        })}
+      </>
+    );
+  })();
+
+  return (
+    <Fragment>
+      <Box
+        component="aside"
+        aria-label="面板侧边栏"
+        sx={{
+          position: 'relative', flexShrink: 0, width: collapsed ? 0 : width,
+          minWidth: 0, display: 'flex', flexDirection: 'column',
+          bgcolor: 'background.paper', borderRight: 1, borderColor: 'divider',
+          overflow: 'hidden', transition: dragging ? 'none' : 'width .2s ease',
+        }}
+      >
+        <Box sx={{ px: 2, py: 1.25, display: 'flex', alignItems: 'center', gap: 1, flexShrink: 0 }}>
+          <WidgetsIcon sx={{ fontSize: 18, color: 'primary.main' }} />
+          <Typography sx={{ fontSize: 13, fontWeight: 700, letterSpacing: 0.5, color: 'text.secondary' }}>
+            面板工作台
+          </Typography>
+        </Box>
+        <Divider sx={{ flexShrink: 0 }} />
+
+        <Box sx={{ flex: 1, minHeight: 0, overflowY: 'auto', overflowX: 'hidden' }}>
+          {listBody}
+        </Box>
+
+        <Divider sx={{ flexShrink: 0 }} />
+        <Box sx={{ p: 1, flexShrink: 0 }}>
+          <Button fullWidth size="small" startIcon={<AddIcon />} onClick={onAdd}>添加面板</Button>
+        </Box>
+      </Box>
+
+      {!collapsed && (
+        <Box
+          onMouseDown={handleDown}
+          onDoubleClick={() => setWidth(240)}
+          role="separator"
+          aria-orientation="vertical"
+          title="拖拽调整宽度"
+          sx={{
+            width: 5, flexShrink: 0, alignSelf: 'stretch', cursor: 'col-resize',
+            bgcolor: 'divider', opacity: dragging ? 1 : 0.45,
+            transition: 'background-color .12s ease', zIndex: 5,
+            '&:hover': { bgcolor: 'primary.main', opacity: 0.7 },
+          }}
+        />
+      )}
+
+      {/* 右键菜单：切换打开方式 */}
+      <Menu
+        open={!!ctx}
+        anchorEl={ctx?.anchorEl || null}
+        onClose={() => setCtx(null)}
+        anchorOrigin={{ vertical: 'bottom', horizontal: 'left' }}
+      >
+        {MODE_META.map(({ mode, label, Icon }) => (
+          <MenuItem
+            key={mode}
+            selected={(modes[ctx?.id] || OPEN_MODE_EMBED) === mode}
+            onClick={() => {
+              if (ctx) { onSetMode(ctx.id, mode); onSelect(ctx.id); }
+              setCtx(null);
+            }}
+          >
+            <Icon fontSize="small" sx={{ mr: 1, color: 'text.secondary' }} />
+            {label}
+          </MenuItem>
+        ))}
+      </Menu>
+    </Fragment>
+  );
+}

frontend/src/tools/workbench/components/Toolbar.jsx

@@ -0,0 +1,139 @@
+import React, { useRef } from 'react';
+import Box from '@mui/material/Box';
+import IconButton from '@mui/material/IconButton';
+import Tooltip from '@mui/material/Tooltip';
+import Button from '@mui/material/Button';
+import Divider from '@mui/material/Divider';
+import InputBase from '@mui/material/InputBase';
+import ArrowBackIcon from '@mui/icons-material/ArrowBack';
+import ArrowForwardIcon from '@mui/icons-material/ArrowForward';
+import RefreshIcon from '@mui/icons-material/Refresh';
+import SearchIcon from '@mui/icons-material/Search';
+import AddIcon from '@mui/icons-material/Add';
+import KeyIcon from '@mui/icons-material/Key';
+import NoteAltIcon from '@mui/icons-material/NoteAlt';
+import ViewSidebarIcon from '@mui/icons-material/ViewSidebar';
+import HomeIcon from '@mui/icons-material/Home';
+import OpenInNewIcon from '@mui/icons-material/OpenInNew';
+import PanelIcon from './PanelIcon.jsx';
+
+/* ============================================================
+ * Toolbar：浏览器式顶栏（高度 56px，surface-container 底）
+ * ◀ 后退 / ▶ 前进（历史栈）· ↻ 刷新 · 只读地址栏 · 🔍 搜索
+ * ＋ 添加 · 🔑 密码库 · 侧边栏折叠 · 返回前台
+ * ============================================================ */
+
+export default function Toolbar({
+  canBack = false, canForward = false, onBack, onForward, onRefresh,
+  currentPanel = null, onOpenExternal,
+  search = '', onSearchChange, onSearchEnter,
+  onAdd, onOpenVault, notesOpen = false, onOpenNotes,
+  collapsed = false, onToggleSidebar, onBackHome,
+}) {
+  const searchRef = useRef(null);
+  const currentUrl = currentPanel ? (currentPanel.embed_url || currentPanel.url || '') : '';
+
+  return (
+    <Box
+      component="header"
+      sx={{
+        height: 56, flexShrink: 0, display: 'flex', alignItems: 'center',
+        gap: 0.5, px: { xs: 0.5, sm: 1 }, zIndex: 10,
+        bgcolor: 'background.paper', borderBottom: 1, borderColor: 'divider',
+      }}
+    >
+      <Tooltip title="后退">
+        <span><IconButton size="small" onClick={onBack} disabled={!canBack} aria-label="后退"><ArrowBackIcon fontSize="small" /></IconButton></span>
+      </Tooltip>
+      <Tooltip title="前进">
+        <span><IconButton size="small" onClick={onForward} disabled={!canForward} aria-label="前进"><ArrowForwardIcon fontSize="small" /></IconButton></span>
+      </Tooltip>
+      <Tooltip title="刷新当前面板">
+        <span><IconButton size="small" onClick={onRefresh} disabled={!currentPanel} aria-label="刷新"><RefreshIcon fontSize="small" /></IconButton></span>
+      </Tooltip>
+
+      {/* 只读地址栏 */}
+      <Box
+        sx={{
+          flex: 1, minWidth: 0, display: 'flex', alignItems: 'center', gap: 1,
+          mx: { xs: 0.5, sm: 1.5 }, height: 36, px: 1.5,
+          bgcolor: 'background.default', border: 1, borderColor: 'divider',
+          borderRadius: 1.5, '&:focus-within': { borderColor: 'primary.main' },
+        }}
+      >
+        {currentPanel && <PanelIcon url={currentUrl} title={currentPanel.title} size={18} />}
+        <InputBase
+          readOnly
+          fullWidth
+          value={currentUrl}
+          placeholder="未选择面板"
+          inputProps={{ 'aria-label': '当前面板地址', style: { cursor: 'default', fontSize: 13 } }}
+          sx={{ color: 'text.secondary' }}
+        />
+        {currentPanel && (
+          <Tooltip title="在新标签页打开原站">
+            <IconButton size="small" onClick={onOpenExternal} aria-label="在新标签页打开原站">
+              <OpenInNewIcon fontSize="small" />
+            </IconButton>
+          </Tooltip>
+        )}
+      </Box>
+
+      <Box sx={{ display: 'flex', alignItems: 'center', gap: 0.5 }}>
+        {/* 搜索（面板名/URL/分组，Enter 直达） */}
+        <Box sx={{ position: 'relative' }}>
+          <SearchIcon
+            sx={{
+              position: 'absolute', left: 9, top: '50%', transform: 'translateY(-50%)',
+              fontSize: 17, color: 'text.secondary', pointerEvents: 'none',
+            }}
+          />
+          <InputBase
+            ref={searchRef}
+            value={search}
+            onChange={(e) => onSearchChange(e.target.value)}
+            onKeyDown={(e) => { if (e.key === 'Enter') { onSearchEnter(); searchRef.current?.blur(); } }}
+            placeholder="搜索面板"
+            inputProps={{ 'aria-label': '搜索面板', style: { paddingLeft: 30, fontSize: 13 } }}
+            sx={{
+              height: 36, width: { xs: 96, sm: 150 }, px: 0.5,
+              bgcolor: 'background.default', border: 1, borderColor: 'divider',
+              borderRadius: 20, '&:focus-within': { borderColor: 'primary.main' },
+            }}
+          />
+        </Box>
+        <Tooltip title="添加面板">
+          <span><IconButton size="small" onClick={onAdd} aria-label="添加面板"><AddIcon fontSize="small" /></IconButton></span>
+        </Tooltip>
+        <Tooltip title="记事本">
+          <span>
+            <IconButton
+              size="small"
+              onClick={onOpenNotes}
+              aria-label="记事本"
+              color={notesOpen ? 'primary' : 'default'}
+            >
+              <NoteAltIcon fontSize="small" />
+            </IconButton>
+          </span>
+        </Tooltip>
+        <Tooltip title="密码库">
+          <span><IconButton size="small" onClick={onOpenVault} aria-label="密码库"><KeyIcon fontSize="small" /></IconButton></span>
+        </Tooltip>
+        <Divider orientation="vertical" flexItem sx={{ mx: 0.5 }} />
+        <Tooltip title={collapsed ? '展开侧边栏' : '收起侧边栏'}>
+          <span><IconButton size="small" onClick={onToggleSidebar} aria-label="切换侧边栏"><ViewSidebarIcon fontSize="small" /></IconButton></span>
+        </Tooltip>
+      </Box>
+
+      <Button
+        color="inherit"
+        onClick={onBackHome}
+        startIcon={<HomeIcon sx={{ fontSize: 18 }} />}
+        sx={{ ml: 0.5, minWidth: 0, px: { xs: 1, sm: 1.5 }, '& .MuiButton-startIcon': { mr: { xs: 0, sm: 0.5 } } }}
+      >
+        <Box component="span" sx={{ display: { xs: 'none', sm: 'inline' } }}>返回前台</Box>
+      </Button>
+    </Box>
+  );
+}

frontend/src/tools/workbench/components/VaultDrawer.jsx

@@ -0,0 +1,456 @@
+import React, { useCallback, useEffect, useState } from 'react';
+import Drawer from '@mui/material/Drawer';
+import Box from '@mui/material/Box';
+import Typography from '@mui/material/Typography';
+import IconButton from '@mui/material/IconButton';
+import Button from '@mui/material/Button';
+import TextField from '@mui/material/TextField';
+import InputAdornment from '@mui/material/InputAdornment';
+import List from '@mui/material/List';
+import ListItem from '@mui/material/ListItem';
+import ListItemButton from '@mui/material/ListItemButton';
+import ListItemIcon from '@mui/material/ListItemIcon';
+import ListItemText from '@mui/material/ListItemText';
+import Collapse from '@mui/material/Collapse';
+import Divider from '@mui/material/Divider';
+import CircularProgress from '@mui/material/CircularProgress';
+import Snackbar from '@mui/material/Snackbar';
+import Alert from '@mui/material/Alert';
+import Tooltip from '@mui/material/Tooltip';
+import CloseIcon from '@mui/icons-material/Close';
+import LockIcon from '@mui/icons-material/Lock';
+import LockOpenIcon from '@mui/icons-material/LockOpen';
+import KeyIcon from '@mui/icons-material/Key';
+import SearchIcon from '@mui/icons-material/Search';
+import ContentCopyIcon from '@mui/icons-material/ContentCopy';
+import ExpandMoreIcon from '@mui/icons-material/ExpandMore';
+import VisibilityIcon from '@mui/icons-material/Visibility';
+import VisibilityOffIcon from '@mui/icons-material/VisibilityOff';
+import ErrorIcon from '@mui/icons-material/Error';
+import useVault from '../hooks/useVault.js';
+
+/**
+ * 工作台 · 密码库抽屉（Lane B，只读）。
+ *
+ * 交互流程：
+ *   loading →（pinStatus）→ noPin（引导去 /passwords.html）｜ locked（PIN 输入）
+ *   → unlock → unlocked（搜索 + 条目列表，点击条目展开详情逐字段复制）
+ *   「锁定」按钮走 lock API；关闭抽屉不锁定，方便切面板取用。
+ *
+ * 接口：{ open, onClose, title? }（title 可选，默认「密码库」，兼容占位版约定）。
+ * 自包含：不依赖主工作台的任何代码，只依赖 useVault hook 与 api/passwords.js。
+ * 深浅色随后台 MD3 主题（createMD3Theme）自动适配。
+ */
+
+/** 剪贴板写入：优先 Async Clipboard，失败时降级 execCommand（非安全上下文/LAN 部署） */
+async function copyText(text) {
+  if (!text) return false;
+  try {
+    await navigator.clipboard.writeText(text);
+    return true;
+  } catch {
+    try {
+      const ta = document.createElement('textarea');
+      ta.value = text;
+      ta.setAttribute('readonly', '');
+      ta.style.position = 'fixed';
+      ta.style.left = '-9999px';
+      ta.style.top = '0';
+      document.body.appendChild(ta);
+      ta.select();
+      const ok = document.execCommand('copy');
+      document.body.removeChild(ta);
+      return ok;
+    } catch { return false; }
+  }
+}
+
+/** 展开详情中的单字段行：标签 + 值（网址可点开）+ 复制按钮 */
+function DetailField({ label, value, href, secret, onCopy }) {
+  return (
+    <Box sx={{ display: 'flex', alignItems: 'center', gap: 1, py: 0.75, minWidth: 0 }}>
+      <Typography variant="caption" sx={{ color: 'text.secondary', width: 40, flexShrink: 0 }}>{label}</Typography>
+      {href ? (
+        <Typography
+          variant="body2"
+          component="a"
+          href={href}
+          target="_blank"
+          rel="noopener noreferrer"
+          title={value}
+          sx={{
+            flexGrow: 1, minWidth: 0, color: 'primary.main',
+            overflow: 'hidden', textOverflow: 'ellipsis', whiteSpace: 'nowrap',
+          }}
+        >
+          {value}
+        </Typography>
+      ) : (
+        <Typography
+          variant="body2"
+          title={value}
+          sx={{
+            flexGrow: 1, minWidth: 0,
+            overflow: 'hidden', textOverflow: 'ellipsis', whiteSpace: 'nowrap',
+            fontFamily: secret ? 'ui-monospace, SFMono-Regular, Menlo, Consolas, monospace' : undefined,
+            letterSpacing: secret ? '0.04em' : undefined,
+          }}
+        >
+          {value || '—'}
+        </Typography>
+      )}
+      {onCopy ? (
+        <IconButton size="small" aria-label={`复制${label}`} onClick={onCopy} sx={{ flexShrink: 0 }}>
+          <ContentCopyIcon sx={{ fontSize: 15 }} />
+        </IconButton>
+      ) : null}
+    </Box>
+  );
+}
+
+/** 单条密码：行内标题 + 用户名 + 复制密码，点击展开详情 */
+function VaultEntryRow({ entry, expanded, onToggle, onCopy }) {
+  return (
+    <ListItem disablePadding sx={{ display: 'block' }}>
+      <ListItemButton
+        onClick={onToggle}
+        selected={expanded}
+        aria-expanded={expanded}
+        sx={{ pr: 1 }}
+      >
+        <ListItemIcon>
+          <KeyIcon fontSize="small" />
+        </ListItemIcon>
+        <ListItemText
+          primary={entry.title}
+          secondary={entry.username || '无用户名'}
+          primaryTypographyProps={{ noWrap: true, fontWeight: 500 }}
+          secondaryTypographyProps={{ noWrap: true }}
+        />
+        <Tooltip title="复制密码">
+          <IconButton
+            size="small"
+            aria-label={`复制 ${entry.title} 的密码`}
+            onClick={(e) => { e.stopPropagation(); onCopy(entry.password, '密码'); }}
+          >
+            <ContentCopyIcon fontSize="small" />
+          </IconButton>
+        </Tooltip>
+        <ExpandMoreIcon
+          fontSize="small"
+          sx={{
+            color: 'text.secondary', ml: 0.25,
+            transform: expanded ? 'rotate(180deg)' : 'none',
+            transition: 'transform 0.2s ease',
+          }}
+        />
+      </ListItemButton>
+      <Collapse in={expanded} unmountOnExit>
+        <Box sx={{ px: 2, py: 1, mx: 1, mb: 1, bgcolor: 'action.hover', borderRadius: 2 }}>
+          <DetailField
+            label="用户名"
+            value={entry.username}
+            onCopy={entry.username ? () => onCopy(entry.username, '用户名') : undefined}
+          />
+          <DetailField
+            label="密码"
+            value={entry.password}
+            secret
+            onCopy={entry.password ? () => onCopy(entry.password, '密码') : undefined}
+          />
+          {entry.url ? (
+            <DetailField label="网址" value={entry.url} href={entry.url} onCopy={() => onCopy(entry.url, '网址')} />
+          ) : null}
+          {entry.notes ? <DetailField label="备注" value={entry.notes} /> : null}
+        </Box>
+      </Collapse>
+    </ListItem>
+  );
+}
+
+/**
+ * 密码库抽屉
+ * @param {boolean} open 是否打开（每次打开会重新同步服务端会话状态）
+ * @param {() => void} onClose 关闭回调（仅关闭，不锁定）
+ * @param {string} [title] 抽屉标题，默认「密码库」
+ */
+export default function VaultDrawer({ open, onClose, title = '密码库' }) {
+  const vault = useVault({ open });
+
+  // PIN 输入屏的本地状态
+  const [pinInput, setPinInput] = useState('');
+  const [pinError, setPinError] = useState('');
+  const [showPin, setShowPin] = useState(false);
+
+  // 展开中的条目 id（每次打开清空）
+  const [expandedId, setExpandedId] = useState(null);
+  // 每次打开自增，作为内容 key：保证重新打开时 autoFocus 生效
+  const [openCount, setOpenCount] = useState(0);
+
+  const [snack, setSnack] = useState({ open: false, msg: '', severity: 'success' });
+  const notify = useCallback((msg, severity = 'success') => {
+    setSnack({ open: true, msg, severity });
+  }, []);
+
+  useEffect(() => {
+    if (open) {
+      setPinInput('');
+      setPinError('');
+      setShowPin(false);
+      setExpandedId(null);
+      setOpenCount((c) => c + 1);
+    }
+  }, [open]);
+
+  const submitUnlock = useCallback(async () => {
+    const pin = pinInput.trim();
+    if (!pin) { setPinError('请输入 PIN 码'); return; }
+    setPinError('');
+    try {
+      await vault.unlock(pin);
+      setPinInput('');
+      setShowPin(false);
+      notify('已解锁');
+    } catch (e) {
+      // 后端错误直显：401 'PIN 错误' / 429 '尝试次数过多，请稍后再试'
+      setPinError(e.message || '解锁失败');
+      setPinInput('');
+    }
+  }, [pinInput, vault, notify]);
+
+  const handleLock = useCallback(async () => {
+    try {
+      await vault.lock();
+      setExpandedId(null);
+      notify('已锁定');
+    } catch (e) {
+      notify(e.message || '锁定失败', 'error');
+    }
+  }, [vault, notify]);
+
+  const copyToClipboard = useCallback(async (text, label) => {
+    const ok = await copyText(text);
+    if (ok) notify(`${label} 已复制`);
+    else notify('复制失败', 'error');
+  }, [notify]);
+
+  /* ---------- 各状态下的主体 ---------- */
+
+  const renderBody = () => {
+    switch (vault.status) {
+      case 'loading':
+        return (
+          <Box sx={{ display: 'flex', flexDirection: 'column', alignItems: 'center', justifyContent: 'center', height: '100%', gap: 2 }}>
+            <CircularProgress size={28} />
+            <Typography variant="body2" color="text.secondary">正在检查密码库状态…</Typography>
+          </Box>
+        );
+
+      case 'error':
+        return (
+          <Box sx={{ display: 'flex', flexDirection: 'column', alignItems: 'center', justifyContent: 'center', height: '100%', gap: 1.5, textAlign: 'center', px: 2 }}>
+            <ErrorIcon color="error" sx={{ fontSize: 40 }} />
+            <Typography variant="body2" color="text.secondary">{vault.statusError}</Typography>
+            <Button variant="outlined" onClick={vault.checkStatus} sx={{ mt: 1 }}>重试</Button>
+          </Box>
+        );
+
+      case 'noPin':
+        return (
+          <Box sx={{ display: 'flex', flexDirection: 'column', alignItems: 'center', justifyContent: 'center', height: '100%', gap: 1.5, textAlign: 'center', px: 2 }}>
+            <LockOpenIcon sx={{ fontSize: 44, color: 'text.disabled' }} />
+            <Typography variant="subtitle1" sx={{ fontWeight: 500 }}>未设置 PIN</Typography>
+            <Typography variant="body2" color="text.secondary">请先到密码库页设置 PIN 后再使用</Typography>
+            <Button variant="contained" component="a" href="/passwords.html" sx={{ mt: 1 }}>前往密码库页</Button>
+          </Box>
+        );
+
+      case 'locked':
+        return (
+          <Box component="form" onSubmit={(e) => { e.preventDefault(); submitUnlock(); }} sx={{ mt: 1 }}>
+            <Typography variant="subtitle1" sx={{ mb: 1.5, fontWeight: 500 }}>输入 PIN 码解锁</Typography>
+            <TextField
+              autoFocus
+              fullWidth
+              size="small"
+              type={showPin ? 'text' : 'password'}
+              label="PIN 码"
+              value={pinInput}
+              onChange={(e) => { setPinInput(e.target.value); if (pinError) setPinError(''); }}
+              onKeyDown={(e) => { if (e.key === 'Enter') submitUnlock(); }}
+              error={!!pinError}
+              helperText={pinError || ' '}
+              autoComplete="off"
+              spellCheck={false}
+              slotProps={{
+                htmlInput: { maxLength: 20, 'aria-label': 'PIN 码' },
+                input: {
+                  endAdornment: (
+                    <InputAdornment position="end">
+                      <IconButton
+                        size="small"
+                        edge="end"
+                        aria-label={showPin ? '隐藏 PIN' : '显示 PIN'}
+                        onClick={() => setShowPin((v) => !v)}
+                      >
+                        {showPin ? <VisibilityOffIcon fontSize="small" /> : <VisibilityIcon fontSize="small" />}
+                      </IconButton>
+                    </InputAdornment>
+                  ),
+                },
+              }}
+            />
+            <Button
+              variant="contained"
+              fullWidth
+              disabled={vault.unlocking || !pinInput}
+              onClick={submitUnlock}
+              startIcon={vault.unlocking ? <CircularProgress size={18} color="inherit" /> : <LockOpenIcon />}
+              sx={{ mt: 2 }}
+            >
+              {vault.unlocking ? '解锁中…' : '解锁'}
+            </Button>
+          </Box>
+        );
+
+      case 'unlocked':
+      default: {
+        const { entries, entriesError, filteredEntries, search, setSearch } = vault;
+        const empty = filteredEntries.length === 0;
+        return (
+          <Box>
+            <TextField
+              autoFocus
+              fullWidth
+              size="small"
+              placeholder="搜索标题或用户名"
+              value={search}
+              onChange={(e) => setSearch(e.target.value)}
+              slotProps={{
+                htmlInput: { 'aria-label': '搜索密码' },
+                input: {
+                  startAdornment: (
+                    <InputAdornment position="start">
+                      <SearchIcon fontSize="small" sx={{ color: 'text.secondary' }} />
+                    </InputAdornment>
+                  ),
+                  endAdornment: search ? (
+                    <InputAdornment position="end">
+                      <IconButton size="small" edge="end" aria-label="清空搜索" onClick={() => setSearch('')}>
+                        <CloseIcon fontSize="small" />
+                      </IconButton>
+                    </InputAdornment>
+                  ) : null,
+                },
+              }}
+              sx={{ mb: 1 }}
+            />
+
+            {entries === null && (
+              <Box sx={{ display: 'flex', justifyContent: 'center', py: 4 }}>
+                <CircularProgress size={26} />
+              </Box>
+            )}
+
+            {entriesError && (
+              <Box sx={{ display: 'flex', flexDirection: 'column', alignItems: 'center', gap: 1, py: 3, textAlign: 'center' }}>
+                <ErrorIcon color="error" />
+                <Typography variant="body2" color="text.secondary">加载失败：{entriesError}</Typography>
+                <Button size="small" variant="outlined" onClick={vault.loadEntries}>重试</Button>
+              </Box>
+            )}
+
+            {entries && !entriesError && empty && (
+              <Box sx={{ textAlign: 'center', py: 4 }}>
+                <Typography variant="body2" color="text.secondary">
+                  {search ? '无匹配的密码记录' : '暂无密码记录'}
+                </Typography>
+              </Box>
+            )}
+
+            {entries && !entriesError && !empty && (
+              <List disablePadding>
+                {filteredEntries.map((e) => (
+                  <VaultEntryRow
+                    key={e.id}
+                    entry={e}
+                    expanded={expandedId === e.id}
+                    onToggle={() => setExpandedId(expandedId === e.id ? null : e.id)}
+                    onCopy={copyToClipboard}
+                  />
+                ))}
+              </List>
+            )}
+          </Box>
+        );
+      }
+    }
+  };
+
+  return (
+    <Drawer
+      anchor="right"
+      open={open}
+      onClose={onClose}
+      sx={{
+        '& .MuiDrawer-paper': {
+          width: 360,
+          maxWidth: '100vw',
+          borderRight: 'none',
+          borderLeft: (t) => `1px solid ${t.palette.divider}`,
+          boxShadow: (t) => t.shadows[8],
+          backgroundImage: 'none',
+        },
+      }}
+    >
+      <Box
+        key={openCount}
+        role="dialog"
+        aria-modal="true"
+        aria-labelledby="vault-drawer-title"
+        sx={{ width: 360, maxWidth: '100vw', height: '100%', display: 'flex', flexDirection: 'column' }}
+      >
+        {/* 头部：标题 + 锁定 + 关闭 */}
+        <Box sx={{ display: 'flex', alignItems: 'center', px: 2, py: 1.5 }}>
+          <KeyIcon sx={{ color: 'primary.main', mr: 0.5 }} />
+          <Typography variant="h6" id="vault-drawer-title" sx={{ flexGrow: 1, fontSize: 18 }}>{title}</Typography>
+          {vault.status === 'unlocked' && (
+            <Tooltip title="锁定密码库">
+              <span>
+                <IconButton aria-label="锁定密码库" onClick={handleLock} disabled={vault.locking} size="small">
+                  <LockIcon fontSize="small" />
+                </IconButton>
+              </span>
+            </Tooltip>
+          )}
+          <Tooltip title="关闭">
+            <IconButton aria-label="关闭密码库" onClick={onClose} edge="end">
+              <CloseIcon />
+            </IconButton>
+          </Tooltip>
+        </Box>
+        <Divider />
+
+        {/* 主体 */}
+        <Box sx={{ flexGrow: 1, overflowY: 'auto', px: 2, py: 2 }}>
+          {renderBody()}
+        </Box>
+      </Box>
+
+      <Snackbar
+        open={snack.open}
+        autoHideDuration={2200}
+        onClose={() => setSnack((s) => ({ ...s, open: false }))}
+        anchorOrigin={{ vertical: 'bottom', horizontal: 'center' }}
+      >
+        <Alert
+          severity={snack.severity}
+          variant="filled"
+          onClose={() => setSnack((s) => ({ ...s, open: false }))}
+        >
+          {snack.msg}
+        </Alert>
+      </Snackbar>
+    </Drawer>
+  );
+}

frontend/src/tools/workbench/hooks/useNotes.js

@@ -0,0 +1,171 @@
+import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
+import * as notesApi from '../../../api/notes.js';
+import { showSnack } from '../../../admin/snack.jsx';
+
+/* ============================================================
+ * useNotes：工作台「记事本」状态管理
+ *
+ * - 列表加载/错误态、当前编辑文件（activeName）、草稿内容 + 服务端快照
+ * - 自动保存：输入防抖 900ms；Ctrl+S 立即保存（dirty = 草稿 ≠ 快照）
+ * - 新建 / 重命名（新文件 + 删旧文件）/ 删除，全程复用 notes API
+ * ============================================================ */
+
+const AUTOSAVE_MS = 900;
+
+export default function useNotes() {
+  const [notes, setNotes] = useState(null);           // null = 加载中
+  const [loadError, setLoadError] = useState('');
+  const [activeName, setActiveName] = useState(null); // 当前编辑的笔记名
+  const [content, setContent] = useState('');          // 编辑器草稿
+  const [savedContent, setSavedContent] = useState(''); // 服务端快照
+  const [saving, setSaving] = useState(false);         // 保存请求进行中
+  const [busy, setBusy] = useState(false);             // 打开/新建/重命名进行中
+
+  const draftRef = useRef({ name: null, text: '' });   // 最新草稿（供防抖回调读取）
+  const debounceRef = useRef(null);
+
+  // ---- 列表加载（静默刷新：保留现有列表，避免自动保存时闪烁） ----
+  const refresh = useCallback(() => {
+    setLoadError('');
+    return notesApi.listNotes()
+      .then((ls) => {
+        const arr = Array.isArray(ls) ? ls : [];
+        setNotes(arr);
+        setActiveName((prev) => (prev && arr.some((n) => n.name === prev) ? prev : null));
+      })
+      .catch((e) => { setLoadError(e.message || '加载失败'); });
+  }, []);
+
+  useEffect(() => { refresh(); }, [refresh]);
+
+  // 当前文件被外部删除/失效时清空编辑器
+  useEffect(() => {
+    if (activeName === null) {
+      setContent('');
+      setSavedContent('');
+      draftRef.current = { name: null, text: '' };
+    }
+  }, [activeName]);
+
+  // ---- 保存（PUT） ----
+  const saveContent = useCallback((name, text) => {
+    setSaving(true);
+    return notesApi.updateNote(name, text)
+      .then((res) => {
+        setSavedContent(text);
+        setNotes((prev) => (prev
+          ? prev.map((n) => (n.name === res.name ? { ...n, size: res.size, mtime: res.mtime } : n))
+          : prev));
+      })
+      .catch((e) => showSnack(e.message, 'error'))
+      .finally(() => setSaving(false));
+  }, []);
+
+  // ---- 打开文件 ----
+  const open = useCallback((name) => {
+    setBusy(true);
+    return notesApi.getNote(name)
+      .then((res) => {
+        const text = res.content || '';
+        setActiveName(name);
+        setContent(text);
+        setSavedContent(text);
+        draftRef.current = { name, text };
+      })
+      .catch((e) => showSnack(e.message, 'error'))
+      .finally(() => setBusy(false));
+  }, []);
+
+  // ---- 编辑（防抖自动保存） ----
+  const updateContent = useCallback((text) => {
+    setContent(text);
+    draftRef.current = { name: activeName, text };
+    clearTimeout(debounceRef.current);
+    debounceRef.current = setTimeout(() => {
+      const d = draftRef.current;
+      if (d.name) saveContent(d.name, d.text);
+    }, AUTOSAVE_MS);
+  }, [activeName, saveContent]);
+
+  // ---- 立即保存（Ctrl+S / 切换文件前） ----
+  const saveNow = useCallback(() => {
+    clearTimeout(debounceRef.current);
+    const d = draftRef.current;
+    if (d.name) return saveContent(d.name, d.text);
+    return Promise.resolve();
+  }, [saveContent]);
+
+  // ---- 新建 ----
+  const create = useCallback((name) => {
+    setBusy(true);
+    return notesApi.createNote(name, '')
+      .then((res) => {
+        setActiveName(res.name);
+        setContent('');
+        setSavedContent('');
+        draftRef.current = { name: res.name, text: '' };
+        return refresh();
+      })
+      .catch((e) => showSnack(e.message, 'error'))
+      .finally(() => setBusy(false));
+  }, [refresh]);
+
+  // ---- 重命名（新文件写入旧内容 + 删旧文件） ----
+  const rename = useCallback(async (oldName, newName) => {
+    setBusy(true);
+    try {
+      // 若正在编辑该文件，用草稿内容；否则先读服务端内容
+      let text = draftRef.current.text;
+      if (activeName !== oldName) {
+        const res = await notesApi.getNote(oldName);
+        text = res.content || '';
+      }
+      await notesApi.createNote(newName, text);
+      await notesApi.deleteNote(oldName);
+      if (activeName === oldName) {
+        setActiveName(newName);
+        setSavedContent(text);
+        draftRef.current = { name: newName, text };
+      }
+      await refresh();
+      showSnack('重命名成功');
+    } catch (e) {
+      showSnack(e.message, 'error');
+    } finally {
+      setBusy(false);
+    }
+  }, [activeName, refresh]);
+
+  // ---- 删除 ----
+  const remove = useCallback(async (name) => {
+    setBusy(true);
+    try {
+      await notesApi.deleteNote(name);
+      if (activeName === name) {
+        clearTimeout(debounceRef.current);
+        setActiveName(null);
+      }
+      await refresh();
+    } catch (e) {
+      showSnack(e.message, 'error');
+    } finally {
+      setBusy(false);
+    }
+  }, [activeName, refresh]);
+
+  // ---- 新建默认名：untitled-N.txt（避开已有名） ----
+  const nextUntitled = useMemo(() => {
+    const names = new Set((notes || []).map((n) => n.name.toLowerCase()));
+    let i = 1;
+    while (names.has(`untitled-${i}.txt`)) i += 1;
+    return `untitled-${i}.txt`;
+  }, [notes]);
+
+  const dirty = activeName !== null && content !== savedContent;
+
+  return {
+    notes, loadError, refresh,
+    activeName, content, dirty, saving, busy,
+    open, updateContent, saveNow, create, rename, remove, nextUntitled,
+  };
+}

frontend/src/tools/workbench/hooks/usePanels.js

@@ -0,0 +1,239 @@
+import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
+import { listAdminLinks } from '../../../api/adminLinks.js';
+
+/* ============================================================
+ * 工作台面板状态（Lane A 核心 hook）
+ *
+ * 管理：面板列表（admin_links）、打开集合、当前面板、历史栈（◀▶）、
+ * 固定（pin）、分组折叠、打开方式、侧边栏折叠、搜索。
+ * 打开集合 / 当前面板 / 历史栈 / 折叠态等持久化到 localStorage（key: workbench.*）。
+ * ============================================================ */
+
+export const OPEN_MODE_EMBED = 'embed';   // 内嵌 iframe
+export const OPEN_MODE_TAB = 'tab';       // 新标签页
+export const OPEN_MODE_MODAL = 'modal';   // 弹窗打开
+
+const STORE = {
+  open: 'workbench.open',               // 打开的面板 id 数组
+  active: 'workbench.active',           // 当前面板 id
+  history: 'workbench.history',         // { ids: [], index: n } 历史栈
+  collapsed: 'workbench.sidebarCollapsed',
+  groups: 'workbench.collapsedGroups',  // { 分组名: true } 折叠
+  pinned: 'workbench.pinned',           // 固定面板 id 数组
+  modes: 'workbench.openModes',         // { id: 'embed'|'tab'|'modal' }
+};
+
+function read(key, fallback) {
+  try {
+    const raw = localStorage.getItem(key);
+    return raw === null ? fallback : JSON.parse(raw);
+  } catch { return fallback; }
+}
+
+function write(key, value) {
+  try { localStorage.setItem(key, JSON.stringify(value)); } catch { /* 隐私模式等场景忽略 */ }
+}
+
+export default function usePanels() {
+  const [links, setLinks] = useState(null);          // null = 加载中
+  const [loadError, setLoadError] = useState('');
+  const [openIds, setOpenIds] = useState(() => read(STORE.open, []));
+  const [activeId, setActiveId] = useState(() => read(STORE.active, null));
+  const [history, setHistory] = useState(() => {
+    const h = read(STORE.history, null);
+    return (h && Array.isArray(h.ids)) ? h : { ids: [], index: -1 };
+  });
+  const [collapsed, setCollapsed] = useState(() => {
+    const stored = read(STORE.collapsed, null);
+    return stored === null ? window.innerWidth < 768 : !!stored; // 移动端默认收起
+  });
+  const [groups, setGroups] = useState(() => read(STORE.groups, {}));   // name -> true 表示折叠
+  const [pinned, setPinned] = useState(() => read(STORE.pinned, []));
+  const [modes, setModes] = useState(() => read(STORE.modes, {}));
+  const [modalId, setModalId] = useState(null);      // 弹窗打开的面板 id（不持久化）
+  const [search, setSearch] = useState('');
+
+  // LRU 引用（内存态，不需要持久化）：面板 id -> 最近使用时间戳
+  const recency = useRef({});
+
+  // ---- 持久化 ----
+  useEffect(() => write(STORE.open, openIds), [openIds]);
+  useEffect(() => write(STORE.active, activeId), [activeId]);
+  useEffect(() => write(STORE.history, history), [history]);
+  useEffect(() => write(STORE.collapsed, collapsed), [collapsed]);
+  useEffect(() => write(STORE.groups, groups), [groups]);
+  useEffect(() => write(STORE.pinned, pinned), [pinned]);
+  useEffect(() => write(STORE.modes, modes), [modes]);
+
+  // ---- 加载面板列表（reconcile 全部用函数式更新，消除陈旧闭包竞态） ----
+  const reload = useCallback(() => {
+    setLoadError('');
+    setLinks(null);
+    return listAdminLinks()
+      .then((ls) => {
+        const arr = Array.isArray(ls) ? ls : [];
+        setLinks(arr);
+        const valid = new Set(arr.map((p) => String(p.id)));
+        setOpenIds((prev) => prev.filter((id) => valid.has(id)));
+        setPinned((prev) => prev.filter((id) => valid.has(id)));
+        setModes((prev) => Object.fromEntries(Object.entries(prev).filter(([id]) => valid.has(id))));
+        setHistory((prev) => {
+          const ids = prev.ids.filter((id) => valid.has(id));
+          return { ids, index: Math.min(prev.index, ids.length - 1) };
+        });
+        return arr;
+      })
+      .catch((e) => { setLoadError(e.message || '加载失败'); });
+  }, []);
+
+  useEffect(() => { reload(); }, [reload]);
+
+  // activeId 兜底（派生逻辑）：重载后当前面板已被删除时，
+  // 从历史栈 / 打开集合取最近一个，避免指向不存在的面板
+  useEffect(() => {
+    if (!links) return;
+    const valid = new Set(links.map((p) => String(p.id)));
+    if (activeId && valid.has(String(activeId))) return;
+    const fallback = (history.index >= 0 ? history.ids[history.index] : null)
+      ?? openIds[0]
+      ?? null;
+    setActiveId(fallback);
+  }, [links, activeId, history, openIds]);
+
+  const touch = useCallback((id) => { recency.current[id] = Date.now(); }, []);
+
+  // ---- 打开面板：按打开方式分发（tab 新标签 / modal 弹窗 / embed 内嵌） ----
+  // panelOverride：新建面板保存后（links 尚未包含）时直接传入对象
+  const openPanel = useCallback((id, panelOverride) => {
+    const panel = panelOverride || (links && links.find((p) => String(p.id) === String(id)));
+    if (!panel) return false;
+    touch(id);
+    const mode = modes[id] || OPEN_MODE_EMBED;
+    if (mode === OPEN_MODE_TAB) {
+      window.open(panel.embed_url || panel.url, '_blank', 'noopener');
+      return false;
+    }
+    if (mode === OPEN_MODE_MODAL) { setModalId(id); return false; }
+    if (String(activeId) === String(id)) return false;
+    setOpenIds((prev) => (prev.includes(id) ? prev : [...prev, id]));
+    setHistory((prev) => {
+      const ids = prev.ids.slice(0, prev.index + 1);
+      if (ids[ids.length - 1] === id) return prev;
+      ids.push(id);
+      return { ids, index: ids.length - 1 };
+    });
+    setActiveId(id);
+    return true;
+  }, [activeId, links, modes, touch]);
+
+  // ---- 历史栈：◀ 后退 / ▶ 前进 ----
+  const goBack = useCallback(() => {
+    if (history.index <= 0) return;
+    const index = history.index - 1;
+    const id = history.ids[index];
+    if (id == null) return;
+    setHistory({ ...history, index });
+    setActiveId(id);
+    touch(id);
+  }, [history, touch]);
+
+  const goForward = useCallback(() => {
+    if (history.index >= history.ids.length - 1) return;
+    const index = history.index + 1;
+    const id = history.ids[index];
+    if (id == null) return;
+    setHistory({ ...history, index });
+    setActiveId(id);
+    touch(id);
+  }, [history, touch]);
+
+  // ---- 关闭面板（当前面板被关时自动切到最近历史/其他打开面板） ----
+  const closePanel = useCallback((id) => {
+    const nextOpen = openIds.filter((x) => x !== id);
+    setOpenIds(nextOpen);
+    delete recency.current[id];
+    const histIds = history.ids.filter((x) => x !== id);
+    let index = history.index;
+    const removedAt = history.ids.indexOf(id);
+    if (removedAt !== -1 && removedAt < index) index -= 1;
+    if (index > histIds.length - 1) index = histIds.length - 1;
+    setHistory({ ids: histIds, index: index < 0 ? -1 : index });
+    const nextActive = histIds[index] ?? nextOpen[0] ?? null;
+    if (nextActive) setActiveId(nextActive); else setActiveId(null);
+  }, [history, openIds]);
+
+  const togglePin = useCallback((id) => {
+    setPinned((prev) => (prev.includes(id) ? prev.filter((x) => x !== id) : [...prev, id]));
+  }, []);
+
+  const toggleGroup = useCallback((name) => {
+    setGroups((prev) => ({ ...prev, [name]: !prev[name] }));
+  }, []);
+
+  const setMode = useCallback((id, mode) => {
+    setModes((prev) => ({ ...prev, [id]: mode }));
+  }, []);
+
+  const closeModal = useCallback(() => setModalId(null), []);
+
+  // ---- LRU 渲染集：当前面板 + 最近用过的 2 个（最多 3 个活跃 iframe） ----
+  const renderedIds = useMemo(() => {
+    const active = activeId ? String(activeId) : null;
+    if (!active) return [];
+    const others = openIds.filter((id) => String(id) !== active);
+    const sorted = others
+      .map((id) => ({ id, ts: recency.current[id] || 0 }))
+      .sort((a, b) => b.ts - a.ts)
+      .map((x) => x.id);
+    return [active, ...sorted.slice(0, 2)];
+  }, [activeId, openIds]);
+
+  const panelsById = useMemo(() => {
+    const m = {};
+    (links || []).forEach((p) => { m[p.id] = p; });
+    return m;
+  }, [links]);
+
+  const activePanel = activeId ? (panelsById[activeId] || null) : null;
+  const modalPanel = modalId ? (panelsById[modalId] || null) : null;
+  const openPanels = openIds.map((id) => panelsById[id]).filter(Boolean);
+
+  // ---- 搜索过滤（面板名 / URL / 分组） ----
+  const filteredPanels = useMemo(() => {
+    if (!search.trim()) return links || [];
+    const q = search.trim().toLowerCase();
+    return (links || []).filter((p) =>
+      String(p.title || '').toLowerCase().includes(q)
+      || String(p.url || '').toLowerCase().includes(q)
+      || String(p.embed_url || '').toLowerCase().includes(q)
+      || String(p.category || '').toLowerCase().includes(q)
+    );
+  }, [links, search]);
+
+  // 搜索框 Enter：直达第一个匹配面板（空搜索不触发）
+  const openFirstMatch = useCallback(() => {
+    if (!search.trim()) return false;
+    const first = filteredPanels[0];
+    if (first) { openPanel(first.id); setSearch(''); return true; }
+    return false;
+  }, [filteredPanels, openPanel, search]);
+
+  return {
+    // 数据
+    links, loadError, reload, panelsById,
+    // 打开集合
+    openIds, openCount: openIds.length, openPanels, renderedIds,
+    activeId, activePanel, modalId, modalPanel, closeModal,
+    // 历史栈
+    history,
+    canBack: history.index > 0,
+    canForward: history.index >= 0 && history.index < history.ids.length - 1,
+    goBack, goForward,
+    // 操作
+    openPanel, closePanel, togglePin, toggleGroup, setMode,
+    // 侧边栏
+    pinned, groups, collapsed, setCollapsed, modes,
+    // 搜索
+    search, setSearch, filteredPanels, openFirstMatch,
+  };
+}

frontend/src/tools/workbench/hooks/useVault.js

@@ -0,0 +1,104 @@
+import { useCallback, useEffect, useMemo, useState } from 'react';
+import * as pwApi from '../../../api/passwords.js';
+
+/**
+ * 密码库抽屉的状态管理（Lane B）。
+ *
+ * 状态机 status：
+ *   loading  —— 正在检查 PIN 状态（pinStatus）
+ *   error    —— 检查失败（可重试）
+ *   noPin    —— 未设置 PIN（引导去密码库页）
+ *   locked   —— 已设 PIN 但未解锁（PIN 输入屏）
+ *   unlocked —— 已解锁（搜索 + 条目列表）
+ *
+ * 约定：关闭抽屉不锁定，只有 lock() 才锁定——方便切面板取用。
+ * 会话在服务端内存中滑动过期（1 小时），每次打开抽屉会重新同步一次状态。
+ */
+export default function useVault({ open } = {}) {
+  const [status, setStatus] = useState('loading');
+  const [statusError, setStatusError] = useState('');
+  const [entries, setEntries] = useState(null);   // null = 条目加载中
+  const [entriesError, setEntriesError] = useState('');
+  const [search, setSearch] = useState('');
+  const [unlocking, setUnlocking] = useState(false);
+  const [locking, setLocking] = useState(false);
+
+  /** 拉取条目列表（解锁后），失败进入错误态并保留重试按钮 */
+  const loadEntries = useCallback(async () => {
+    setEntries(null);
+    setEntriesError('');
+    try {
+      const list = await pwApi.listEntries();
+      setEntries(list || []);
+    } catch (e) {
+      setEntriesError(e.message || '加载失败');
+      setEntries([]);
+    }
+  }, []);
+
+  /** 同步服务端 PIN / 会话状态 */
+  const checkStatus = useCallback(async () => {
+    setStatus('loading');
+    setStatusError('');
+    try {
+      const s = await pwApi.pinStatus();
+      if (!s.hasPin) setStatus('noPin');
+      else if (s.unlocked) { setStatus('unlocked'); loadEntries(); }
+      else setStatus('locked');
+    } catch (e) {
+      setStatusError(e.message || '检查密码库状态失败');
+      setStatus('error');
+    }
+  }, [loadEntries]);
+
+  // 每次抽屉打开（含重新打开）都同步一次状态；
+  // 若父组件保持挂载仅切换 open，也在这里触发。
+  useEffect(() => {
+    if (open) checkStatus();
+  }, [open, checkStatus]);
+
+  /** 解锁：成功则进入条目列表；失败抛出后端错误（401 PIN 错误 / 429 次数过多） */
+  const unlock = useCallback(async (pin) => {
+    setUnlocking(true);
+    try {
+      await pwApi.unlock(pin);
+      setStatus('unlocked');
+      setSearch('');
+      await loadEntries();
+    } finally {
+      setUnlocking(false);
+    }
+  }, [loadEntries]);
+
+  /** 锁定：清空本地条目与搜索，回到 PIN 输入屏 */
+  const lock = useCallback(async () => {
+    setLocking(true);
+    try {
+      await pwApi.lock();
+      setStatus('locked');
+      setEntries(null);
+      setEntriesError('');
+      setSearch('');
+    } finally {
+      setLocking(false);
+    }
+  }, []);
+
+  /** 按标题 / 用户名过滤（不区分大小写） */
+  const filteredEntries = useMemo(() => {
+    const q = search.trim().toLowerCase();
+    const base = entries || [];
+    if (!q) return base;
+    return base.filter((e) =>
+      (e.title || '').toLowerCase().includes(q) ||
+      (e.username || '').toLowerCase().includes(q));
+  }, [entries, search]);
+
+  return {
+    status, statusError,
+    entries, entriesError,
+    search, setSearch, filteredEntries,
+    unlocking, locking,
+    checkStatus, loadEntries, unlock, lock,
+  };
+}

frontend/src/tools/workbench/index.js

@@ -0,0 +1,20 @@
+/* ============================================================
+ * 工作台模块导出（frontend/src/tools/workbench）
+ * 便于未来升级 / 替换 / 独立打包
+ * ============================================================ */
+
+export { default as Workbench } from './Workbench.jsx';
+export { default as Toolbar } from './components/Toolbar.jsx';
+export { default as Sidebar } from './components/Sidebar.jsx';
+export { default as PanelFrame } from './components/PanelFrame.jsx';
+export { default as AddPanelDialog } from './components/AddPanelDialog.jsx';
+export { default as PanelIcon } from './components/PanelIcon.jsx';
+export { default as VaultDrawer } from './components/VaultDrawer.jsx';
+export { default as NoteEditor } from './components/NoteEditor.jsx';
+export { default as useNotes } from './hooks/useNotes.js';
+export {
+  default as usePanels,
+  OPEN_MODE_EMBED,
+  OPEN_MODE_TAB,
+  OPEN_MODE_MODAL,
+} from './hooks/usePanels.js';

routes/notes.js

@@ -0,0 +1,130 @@
+const express = require('express');
+const fs = require('fs');
+const path = require('path');
+const { authMiddleware, adminOnly } = require('../middleware/auth');
+
+/* ============================================================
+ * 工作台「记事本」API（仅管理员）
+ *
+ * 存储：实体 .txt 文件，目录 frontend/src/tools/workbench/workspace/
+ * （.gitignore 已排除，不入库）
+ *
+ *  GET    /api/notes              → 文件列表（按修改时间倒序）
+ *  GET    /api/notes/:filename    → 读取文件内容 { name, content, size, mtime }
+ *  POST   /api/notes              → 创建 { filename, content }（同名 409）
+ *  PUT    /api/notes/:filename    → 更新 { content }（不存在 404）
+ *  DELETE /api/notes/:filename    → 删除
+ *
+ * 安全：文件名只允许 .txt、拒绝路径穿越（/、\、..、隐藏文件）
+ * ============================================================ */
+
+const WORKSPACE_DIR = path.join(__dirname, '..', 'frontend', 'src', 'tools', 'workbench', 'workspace');
+const router = express.Router();
+
+function ensureDir() {
+  fs.mkdirSync(WORKSPACE_DIR, { recursive: true });
+}
+
+/** 文件名安全校验：返回规范化文件名（自动补 .txt），非法返回 null */
+function sanitizeFilename(raw) {
+  if (typeof raw !== 'string') return null;
+  let name = raw.trim();
+  if (!name || name.length > 120) return null;
+  if (name.includes('/') || name.includes('\\') || name.includes('\0')) return null;
+  if (name === '.' || name === '..' || name.startsWith('.')) return null;
+  if (!name.toLowerCase().endsWith('.txt')) name += '.txt';
+  // 兜底：解析后必须仍位于 workspace 目录内，杜绝路径穿越
+  const full = path.join(WORKSPACE_DIR, name);
+  if (!full.startsWith(WORKSPACE_DIR + path.sep)) return null;
+  return name;
+}
+
+/** 列出所有 .txt 笔记，按修改时间倒序 */
+function listNotes() {
+  ensureDir();
+  return fs.readdirSync(WORKSPACE_DIR, { withFileTypes: true })
+    .filter((d) => d.isFile() && d.name.toLowerCase().endsWith('.txt'))
+    .map((d) => {
+      const st = fs.statSync(path.join(WORKSPACE_DIR, d.name));
+      return { name: d.name, size: st.size, mtime: st.mtimeMs };
+    })
+    .sort((a, b) => b.mtime - a.mtime);
+}
+
+// 列表
+router.get('/', authMiddleware, adminOnly, (req, res) => {
+  try {
+    res.json(listNotes());
+  } catch (e) {
+    console.error('Notes list error:', e.message);
+    res.status(500).json({ error: '读取笔记列表失败' });
+  }
+});
+
+// 读取内容
+router.get('/:filename', authMiddleware, adminOnly, (req, res) => {
+  const name = sanitizeFilename(req.params.filename);
+  if (!name) return res.status(400).json({ error: '文件名不合法' });
+  try {
+    const full = path.join(WORKSPACE_DIR, name);
+    if (!fs.existsSync(full)) return res.status(404).json({ error: '笔记不存在' });
+    const content = fs.readFileSync(full, 'utf8');
+    const st = fs.statSync(full);
+    res.json({ name, content, size: st.size, mtime: st.mtimeMs });
+  } catch (e) {
+    console.error('Note read error:', e.message);
+    res.status(500).json({ error: '读取笔记失败' });
+  }
+});
+
+// 创建
+router.post('/', authMiddleware, adminOnly, (req, res) => {
+  const name = sanitizeFilename(req.body && req.body.filename);
+  if (!name) return res.status(400).json({ error: '文件名不合法' });
+  const content = typeof req.body.content === 'string' ? req.body.content : '';
+  try {
+    ensureDir();
+    const full = path.join(WORKSPACE_DIR, name);
+    if (fs.existsSync(full)) return res.status(409).json({ error: '同名笔记已存在' });
+    fs.writeFileSync(full, content, 'utf8');
+    const st = fs.statSync(full);
+    res.json({ name, size: st.size, mtime: st.mtimeMs });
+  } catch (e) {
+    console.error('Note create error:', e.message);
+    res.status(500).json({ error: '创建笔记失败' });
+  }
+});
+
+// 更新内容
+router.put('/:filename', authMiddleware, adminOnly, (req, res) => {
+  const name = sanitizeFilename(req.params.filename);
+  if (!name) return res.status(400).json({ error: '文件名不合法' });
+  const content = typeof req.body.content === 'string' ? req.body.content : '';
+  try {
+    const full = path.join(WORKSPACE_DIR, name);
+    if (!fs.existsSync(full)) return res.status(404).json({ error: '笔记不存在' });
+    fs.writeFileSync(full, content, 'utf8');
+    const st = fs.statSync(full);
+    res.json({ name, size: st.size, mtime: st.mtimeMs });
+  } catch (e) {
+    console.error('Note update error:', e.message);
+    res.status(500).json({ error: '保存笔记失败' });
+  }
+});
+
+// 删除
+router.delete('/:filename', authMiddleware, adminOnly, (req, res) => {
+  const name = sanitizeFilename(req.params.filename);
+  if (!name) return res.status(400).json({ error: '文件名不合法' });
+  try {
+    const full = path.join(WORKSPACE_DIR, name);
+    if (!fs.existsSync(full)) return res.status(404).json({ error: '笔记不存在' });
+    fs.unlinkSync(full);
+    res.json({ message: '删除成功' });
+  } catch (e) {
+    console.error('Note delete error:', e.message);
+    res.status(500).json({ error: '删除笔记失败' });
+  }
+});
+
+module.exports = router;

routes/proxy.js

@@ -1,7 +1,8 @@
 const express = require('express');
 const http = require('http');
 const https = require('https');
-const { authMiddleware, adminOnly } = require('../middleware/auth');
+const jwt = require('jsonwebtoken');
+const { authMiddleware, adminOnly, SECRET } = require('../middleware/auth');
 const router = express.Router();
 
 // SSRF 防护：拒绝内网/回环/链路本地地址
@@ -59,6 +60,8 @@ function proxyRequest(target, res, maxRedirects = 5) {
       delete headers['X-Frame-Options'];
       delete headers['content-security-policy'];
       delete headers['Content-Security-Policy'];
+      // 防止被代理页面内部资源请求把本站来源（/admin 等）泄露给第三方域名
+      headers['Referrer-Policy'] = 'no-referrer';
 
       // Inject <base> tag so relative URLs resolve to the original domain
       const contentType = (headers['content-type'] || '').toLowerCase();
@@ -118,6 +121,18 @@ function queryTokenAuth(req, res, next) {
   next();
 }
 
+// 短 TTL 代理 token：仅供 iframe 的 ?token= 认证使用（5 分钟有效），
+// 避免把 7 天长 TTL 主 token 暴露在 iframe URL 中（URL 可见于网络面板/历史记录/日志）。
+// 前端 PanelFrame 每次组装 proxy URL 前先从此接口取短 token。
+router.get('/token', authMiddleware, adminOnly, (req, res) => {
+  const token = jwt.sign(
+    { id: req.user.id, username: req.user.username, role: req.user.role, proxy: true },
+    SECRET,
+    { expiresIn: '5m' }
+  );
+  res.json({ token });
+});
+
 router.get('/fetch', queryTokenAuth, authMiddleware, adminOnly, (req, res) => {
   if (!req.query.url) return res.status(400).json({ error: '缺少 url 参数' });
   proxyRequest(req.query.url, res);

server.js

@@ -32,6 +32,7 @@ const uploadRoutes = require('./routes/upload');
 const setupRoutes = require('./routes/setup');
 const proxyRoutes = require('./routes/proxy');
 const importRoutes = require('./routes/import');
+const noteRoutes = require('./routes/notes');
 const feedRoutes = require('./routes/feed');
 const { blogSSR, forumSSR, sitemapXml } = require('./ssr');
 
@@ -111,6 +112,7 @@ app.use('/api/upload', uploadRoutes);
 app.use('/api/setup', setupRoutes);
 app.use('/api/proxy', proxyRoutes);
 app.use('/api/import', importRoutes);
+app.use('/api/notes', noteRoutes);
 
 // Version & Update
 const version = require('fs').readFileSync('./VERSION', 'utf8').trim();