新增：多文件预览Tab系统+脏标记+关闭确认+路径黑名单优化

- useMultiPreview composable管理多Tab状态、会话持久化
- 面包屑状态dot移除
- 放开Program Files目录访问限制

frontend/src/components/FileSystem/components/ConnectionIndicator.vue

@@ -6,7 +6,6 @@
 
   <!-- 有远程配置：完整标签 + 下拉菜单 -->
   <div v-else class="connection-indicator" @click.stop="showMenu = !showMenu">
-    <span :class="['dot', state]" />
     <span class="label">{{ label }}</span>
 
     <div v-if="showMenu" class="menu" @click.stop>

frontend/src/components/FileSystem/components/FileEditorPanel.vue

@@ -360,6 +360,34 @@
       </div>
     </div>
     </template>
+
+    <!-- 多文件预览浮动 Tab 栏 -->
+    <div
+      v-if="previewTabs.length > 1"
+      class="preview-tabs"
+    >
+      <div
+        v-for="tab in previewTabs"
+        :key="tab.id"
+        class="preview-tab"
+        :class="{ active: tab.id === activeTabId }"
+        @click="emit('switchTab', tab.id)"
+        @mousedown.middle.prevent="emit('closeTab', tab.id)"
+      >
+        <span class="tab-icon">
+          {{ getFileTypeIcon(tab.fileItem.name) }}
+          <i v-if="isDirty(tab)" class="tab-dirty"></i>
+        </span>
+        <span class="tab-name" :title="tab.fileItem.name">{{ tab.fileItem.name }}</span>
+        <div class="tab-actions">
+          <button
+            class="tab-close"
+            @click.stop="emit('closeTab', tab.id)"
+            title="关闭"
+          >×</button>
+        </div>
+      </div>
+    </div>
   </div>
 </template>
 
@@ -373,6 +401,8 @@ import type { FileEditorPanelConfig } from '@/types/file-system'
 import { renderMermaidDiagrams, rerenderMermaidDiagrams } from '@/utils/markedExtensions'
 import { useThemeStore } from '@/stores/theme'
 import { previewExcel, previewWord, previewCsv } from '@/utils/filePreviewHandlers'
+import { getFileCategory } from '@/utils/fileTypeHelpers'
+import { isDirty } from '../composables/useMultiPreview'
 import { connectionManager } from '@/api/connection-manager'
 
 // 异步加载 CodeEditor 组件，减少初始包大小
@@ -435,10 +465,26 @@ interface Emits {
   (e: 'imageLoad', dimensions: string): void
   (e: 'imageError'): void
   (e: 'openLocalFile', link: string): void
+  (e: 'switchTab', tabId: string): void
+  (e: 'closeTab', tabId: string): void
 }
 
 const emit = defineEmits<Emits>()
 
+// 多 tab 数据
+const previewTabs = computed(() => props.config.previewTabs || [])
+const activeTabId = computed(() => props.config.activeTabId || null)
+
+// 文件类型图标（基于已有分类逻辑）
+const CATEGORY_ICONS: Record<string, string> = {
+  image: '🖼️', video: '🎬', audio: '🎵', pdf: '📕',
+  html: '🌐', markdown: '📝', text: '⚡', binary: '📦',
+  unknown: '📄'
+}
+const getFileTypeIcon = (filename: string): string => {
+  return CATEGORY_ICONS[getFileCategory(filename)] || '📄'
+}
+
 // HTML 预览 URL（实时从 connectionManager 读取，不缓存）
 function resolveHtmlPreviewBase(): string {
   if (!connectionManager.isRemote()) return 'http://localhost:2652'
@@ -868,6 +914,7 @@ onUnmounted(() => {
   flex-direction: column;
   height: 100%;
   background: var(--color-bg-1);
+  position: relative;
 }
 
 .file-editor-panel:fullscreen {
@@ -1430,4 +1477,129 @@ body[arco-theme*='dark'] .markdown-preview-content :deep(.hljs-link) {
   color: var(--hljs-link);
   text-decoration: underline;
 }
+
+/* ========== 多文件预览浮动 Tab 栏 ========== */
+
+.preview-tabs {
+  position: absolute;
+  right: 0;
+  top: 50%;
+  transform: translateY(-50%);
+  display: flex;
+  flex-direction: column;
+  gap: 3px;
+  z-index: 20;
+  padding: 6px 4px;
+  pointer-events: auto;
+}
+
+.preview-tab {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 2px;
+  width: 56px;
+  padding: 6px 4px 4px;
+  border-radius: 8px 0 0 8px;
+  background: color-mix(in srgb, var(--color-bg-3) 50%, transparent);
+  backdrop-filter: blur(12px);
+  -webkit-backdrop-filter: blur(12px);
+  border: 1px solid color-mix(in srgb, var(--color-border-2) 40%, transparent);
+  border-right: none;
+  cursor: pointer;
+  transition: all 0.3s ease;
+  position: relative;
+  opacity: 0.68;
+}
+
+.preview-tabs:hover .preview-tab {
+  opacity: 1;
+}
+
+.preview-tab:hover {
+  background: var(--color-fill-2);
+}
+
+.preview-tab.active {
+  background: var(--color-fill-2);
+  border-left-color: transparent;
+}
+
+.preview-tab.active::before {
+  content: '';
+  position: absolute;
+  left: -1px;
+  top: 0;
+  bottom: 0;
+  width: 3px;
+  background: rgb(var(--primary-6));
+  border-radius: 3px 0 0 3px;
+}
+
+.tab-icon {
+  font-size: 16px;
+  line-height: 1;
+  position: relative;
+}
+
+.tab-dirty {
+  position: absolute;
+  top: -2px;
+  left: -14px;
+  width: 6px;
+  height: 6px;
+  background: rgb(var(--warning-6));
+  border-radius: 50%;
+}
+
+.tab-name {
+  font-size: 10px;
+  line-height: 1.2;
+  color: var(--color-text-2);
+  text-align: center;
+  max-width: 100%;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  display: block;
+}
+
+.preview-tab.active .tab-name {
+  color: rgb(var(--primary-6));
+  font-weight: 500;
+}
+
+.tab-actions {
+  position: absolute;
+  top: 1px;
+  right: 2px;
+  display: none;
+  align-items: center;
+  gap: 1px;
+}
+
+.preview-tab:hover .tab-actions {
+  display: flex;
+}
+
+.tab-close {
+  width: 14px;
+  height: 14px;
+  border: none;
+  background: transparent;
+  color: var(--color-text-4);
+  font-size: 12px;
+  line-height: 1;
+  cursor: pointer;
+  border-radius: 50%;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 0;
+}
+
+.tab-close:hover:not(:disabled) {
+  background: var(--color-fill-3);
+  color: var(--color-text-1);
+}
 </style>

frontend/src/components/FileSystem/composables/useMultiPreview.ts

@@ -0,0 +1,240 @@
+/**
+ * 多文件预览 Tab 管理 Composable
+ * 管理预览 Tab 列表、激活状态、内容缓存、会话持久化
+ */
+
+import { ref, computed, watch } from 'vue'
+import { STORAGE_KEYS } from '@/utils/constants'
+import type { FileItem } from '@/types/file-system'
+
+export interface PreviewTab {
+  /** 唯一标识（基于路径） */
+  id: string
+  /** 文件信息 */
+  fileItem: FileItem
+  /** 缓存的预览 URL */
+  previewUrl: string
+  /** 缓存的文件内容 */
+  fileContent: string
+  /** 缓存的原始内容 */
+  originalContent: string
+  /** 缓存的编辑模式状态 */
+  isEditMode: boolean
+  /** 缓存的渲染内容 (HTML/Markdown) */
+  rendered: string
+  /** 是否已加载过内容 */
+  loaded: boolean
+}
+
+/** 持久化存储的精简结构 */
+interface PersistedTab {
+  path: string
+  active: boolean
+  /** 未保存的内容（有修改时才存） */
+  unsavedContent?: string
+  originalContent?: string
+  isEditMode?: boolean
+}
+
+const MAX_TABS = 10
+const STORAGE_KEY = STORAGE_KEYS.FILESYSTEM.MULTI_PREVIEW_TABS
+
+interface UnsavedEntry {
+  content: string
+  original: string
+  editMode: boolean
+}
+
+interface RestoredSession {
+  paths: string[]
+  activePath: string | null
+  unsavedMap: Map<string, UnsavedEntry>
+}
+
+function pathToId(path: string): string {
+  return path.replace(/\\/g, '/').toLowerCase()
+}
+
+export function isDirty(tab: PreviewTab): boolean {
+  return !!(tab.fileContent && tab.originalContent !== undefined && tab.fileContent !== tab.originalContent)
+}
+
+export function useMultiPreview() {
+  const tabs = ref<PreviewTab[]>([])
+  const activeTabId = ref<string | null>(null)
+
+  const activeTab = computed<PreviewTab | null>(() => {
+    if (!activeTabId.value) return null
+    return tabs.value.find(t => t.id === activeTabId.value) || null
+  })
+
+  /** 创建一个新 tab */
+  const createTab = (fileItem: FileItem): PreviewTab => ({
+    id: pathToId(fileItem.path),
+    fileItem,
+    previewUrl: '',
+    fileContent: '',
+    originalContent: '',
+    isEditMode: false,
+    rendered: '',
+    loaded: false
+  })
+
+  // ========== 持久化 ==========
+
+  /** 从 localStorage 恢复会话 */
+  const restoreSession = (): RestoredSession => {
+    const unsavedMap = new Map<string, UnsavedEntry>()
+    let activePath: string | null = null
+    const paths: string[] = []
+
+    try {
+      const raw = localStorage.getItem(STORAGE_KEY)
+      if (!raw) return { paths, activePath, unsavedMap }
+
+      const persisted: PersistedTab[] = JSON.parse(raw)
+      if (!Array.isArray(persisted)) return { paths, activePath, unsavedMap }
+
+      for (const p of persisted) {
+        if (!p.path) continue
+        paths.push(p.path)
+        if (p.active) activePath = p.path
+        if (p.unsavedContent !== undefined) {
+          unsavedMap.set(pathToId(p.path), {
+            content: p.unsavedContent,
+            original: p.originalContent || '',
+            editMode: p.isEditMode || false
+          })
+        }
+      }
+    } catch {
+      localStorage.removeItem(STORAGE_KEY)
+    }
+
+    return { paths, activePath, unsavedMap }
+  }
+
+  /** 保存会话到 localStorage */
+  const persistSession = () => {
+    const persisted: PersistedTab[] = tabs.value.map(tab => {
+      const hasUnsaved = tab.fileContent && tab.originalContent !== undefined && tab.fileContent !== tab.originalContent
+      // 限制存储大小，超过 100KB 的内容不存入 localStorage
+      const canSave = hasUnsaved && tab.fileContent.length <= 100_000
+      return {
+        path: tab.fileItem.path,
+        active: tab.id === activeTabId.value,
+        unsavedContent: canSave ? tab.fileContent : undefined,
+        originalContent: canSave ? tab.originalContent : undefined,
+        isEditMode: canSave ? tab.isEditMode : undefined
+      }
+    })
+
+    try {
+      localStorage.setItem(STORAGE_KEY, JSON.stringify(persisted))
+    } catch {
+      // localStorage 满了，忽略
+    }
+  }
+
+  /** 恢复未保存内容到 tab */
+  const applyUnsavedContent = (tab: PreviewTab, unsavedMap: Map<string, UnsavedEntry>) => {
+    const unsaved = unsavedMap.get(tab.id)
+    if (unsaved) {
+      tab.fileContent = unsaved.content
+      tab.originalContent = unsaved.original
+      tab.isEditMode = unsaved.editMode
+      tab.loaded = true // 标记为已加载，避免重新从磁盘读取覆盖
+    }
+  }
+
+  /** 添加或激活 tab，返回 { tab, isNew } */
+  const addTab = (fileItem: FileItem): { tab: PreviewTab; isNew: boolean } => {
+    const id = pathToId(fileItem.path)
+    const existing = tabs.value.find(t => t.id === id)
+    if (existing) {
+      activeTabId.value = id
+      return { tab: existing, isNew: false }
+    }
+
+    // 超出上限，移除非活跃的最早 tab
+    if (tabs.value.length >= MAX_TABS) {
+      const victimIdx = tabs.value.findIndex(t => t.id !== activeTabId.value && t.id !== id)
+      if (victimIdx !== -1) tabs.value.splice(victimIdx, 1)
+    }
+
+    const tab = createTab(fileItem)
+    tabs.value.push(tab)
+    activeTabId.value = tab.id
+    return { tab, isNew: true }
+  }
+
+  /** 切换 tab */
+  const switchTab = (tabId: string) => {
+    if (tabs.value.find(t => t.id === tabId)) {
+      activeTabId.value = tabId
+    }
+  }
+
+  /** 关闭 tab，返回关闭后应激活的 tabId */
+  const removeTab = (tabId: string): string | null => {
+    const idx = tabs.value.findIndex(t => t.id === tabId)
+    if (idx === -1) return activeTabId.value
+
+    tabs.value.splice(idx, 1)
+
+    if (activeTabId.value === tabId) {
+      const nextIdx = Math.min(idx, tabs.value.length - 1)
+      const nextTab = tabs.value[nextIdx] || null
+      activeTabId.value = nextTab?.id || null
+    }
+
+    return activeTabId.value
+  }
+
+  /** 缓存当前 tab 的状态（切换前调用） */
+  const cacheCurrentTab = (state: {
+    previewUrl: string
+    fileContent: string
+    originalContent: string
+    isEditMode: boolean
+    rendered: string
+  }) => {
+    if (!activeTabId.value) return
+    const tab = tabs.value.find(t => t.id === activeTabId.value)
+    if (tab) {
+      tab.previewUrl = state.previewUrl
+      tab.fileContent = state.fileContent
+      tab.originalContent = state.originalContent
+      tab.isEditMode = state.isEditMode
+      tab.rendered = state.rendered
+      tab.loaded = true
+    }
+  }
+
+  /** 清空所有 tab */
+  const clearAll = () => {
+    tabs.value = []
+    activeTabId.value = null
+  }
+
+  // 监听 tabs/activeTabId 变化，防抖持久化
+  let _persistTimer: ReturnType<typeof setTimeout> | null = null
+  watch([tabs, activeTabId], () => {
+    if (_persistTimer) clearTimeout(_persistTimer)
+    _persistTimer = setTimeout(persistSession, 1000)
+  }, { deep: true })
+
+  return {
+    tabs,
+    activeTabId,
+    activeTab,
+    addTab,
+    switchTab,
+    removeTab,
+    cacheCurrentTab,
+    clearAll,
+    persistSession,
+    restoreSession,
+    applyUnsavedContent
+  }
+}

frontend/src/components/FileSystem/index.vue

@@ -8,7 +8,7 @@
         :config="sidebarConfig"
         @open-favorite="handleOpenFavorite"
         @remove-favorite="handleRemoveFavorite"
-        @toggle-pin="handleTogglePin"
+        @toggle-pin="handleToggleFavPin"
         @long-press-start="handleLongPressStart"
         @long-press-cancel="handleLongPressCancel"
         @drag-start="handleDragStart"
@@ -75,6 +75,8 @@
           @image-load="handleImageLoad"
           @image-error="handleImageError"
           @open-local-file="handleOpenLocalFile"
+          @switch-tab="switchToTab"
+          @close-tab="closeTab"
         />
       </div>
       </div>
@@ -130,6 +132,7 @@ import { usePathNavigation } from './composables/usePathNavigation'
 import { useFilePreview } from './composables/useFilePreview'
 import { useFileEdit } from './composables/useFileEdit'
 import { useCommonPaths } from './composables/useCommonPaths'
+import { useMultiPreview, type PreviewTab, isDirty } from './composables/useMultiPreview'
 
 // 导入工具函数
 import { getFileName, sortFileList } from '@/utils/fileUtils'
@@ -311,6 +314,9 @@ const { fileContent, originalContent, isEditMode, fileContentHeight, contentChan
     currentDirectory: filePath
   })
 
+// 多文件预览 Tab
+const multiPreview = useMultiPreview()
+
 // ========== 计算属性 ==========
 
 const favoritePaths = computed(() => favorites.value.map(f => f.path))
@@ -413,7 +419,10 @@ const fileEditorPanelConfig = computed(() => {
     currentImageDimensions: currentImageDimensions.value,
     currentFileExtension,
     isBinaryFile: isBinaryFileRef.value,
-    fileMtime: selectedFileItem.value?.modified_time || ''
+    fileMtime: selectedFileItem.value?.modified_time || '',
+    // 多 tab
+    previewTabs: multiPreview.tabs.value,
+    activeTabId: multiPreview.activeTabId.value
   }
 })
 
@@ -580,7 +589,7 @@ const handleRemoveFavorite = (path: string) => {
   removeFav(path)
 }
 
-const handleTogglePin = (path: string) => {
+const handleToggleFavPin = (path: string) => {
   togglePin(path)
 }
 
@@ -610,24 +619,14 @@ const handleDragEnd = () => {
 
 // 文件列表事件
 const handleFileClick = async (file: FileItem) => {
-  // 正常文件系统浏览
   if (file.isDir) {
-    // 目录：使用 navigate 函数，确保历史记录正确更新
     await navigate(file.path)
   } else {
-    // 文件：选中并读取内容
+    openFileAsTab(file)
-    selectedFileItem.value = file
-    loadFileContent(file.path)
   }
 }
 
-const handleFileDoubleClick = async (file: FileItem) => {
+const handleFileDoubleClick = handleFileClick
-  if (file.isDir) {
-    await navigate(file.path)
-  } else {
-    selectFile(file.path)
-  }
-}
 
 const handleToggleFavorite = (file: FileItem) => {
   toggleFav(file)
@@ -1064,38 +1063,108 @@ const isMediaPreviewable = (filename: string): boolean => {
          isPdfFile(filename)
 }
 
+/** 激活 tab：设置选中项 + 加载或恢复内容 */
+const activateTab = async (tab: PreviewTab) => {
+  selectedFileItem.value = tab.fileItem
+  if (tab.loaded) {
+    restoreTabState(tab)
+  } else {
+    await loadFileContent(tab.fileItem.path)
+    tab.loaded = true
+  }
+}
+
+/** 文件 → 添加到 tab 并激活 */
+const openFileAsTab = async (file: FileItem) => {
+  cacheCurrentTabState()
+  const { tab } = multiPreview.addTab(file)
+  await activateTab(tab)
+}
+
+/** 切换 tab */
+const switchToTab = async (tabId: string) => {
+  cacheCurrentTabState()
+  multiPreview.switchTab(tabId)
+  const tab = multiPreview.activeTab.value
+  if (tab) await activateTab(tab)
+}
+
+/** 关闭 tab */
+const closeTab = (tabId: string) => {
+  const tab = multiPreview.tabs.value.find(t => t.id === tabId)
+
+  if (tab && isDirty(tab)) {
+    Modal.confirm({
+      title: '未保存的修改',
+      content: `「${tab!.fileItem.name}」有未保存的修改，关闭后将丢失。`,
+      okText: '关闭',
+      cancelText: '取消',
+      onOk: () => doCloseTab(tabId)
+    })
+    return
+  }
+
+  doCloseTab(tabId)
+}
+
+const doCloseTab = (tabId: string) => {
+  const newActiveId = multiPreview.removeTab(tabId)
+  if (newActiveId) {
+    const tab = multiPreview.activeTab.value
+    if (tab) activateTab(tab)
+  } else {
+    selectedFileItem.value = null
+    clearContent()
+  }
+}
+
+/** 缓存当前 tab 的编辑状态 */
+const cacheCurrentTabState = () => {
+  multiPreview.cacheCurrentTab({
+    previewUrl: previewUrl.value,
+    fileContent: fileContent.value,
+    originalContent: originalContent.value,
+    isEditMode: isEditMode.value,
+    rendered: computeRendered.value
+  })
+}
+
+/** 活跃 tab 内容实时同步（脏标记用，完整缓存由 cacheCurrentTabState 负责） */
+watch([fileContent, originalContent], () => {
+  const tab = multiPreview.activeTab.value
+  if (tab) {
+    tab.fileContent = fileContent.value
+    tab.originalContent = originalContent.value
+  }
+})
+
+/** 从 tab 缓存恢复编辑状态 */
+const restoreTabState = (tab: PreviewTab) => {
+  previewUrl.value = tab.previewUrl
+  fileContent.value = tab.fileContent
+  originalContent.value = tab.originalContent
+  isEditMode.value = tab.isEditMode
+  fileVersion.value++
+}
+
 const selectFile = async (path: string) => {
-  // 后端已统一返回 / 路径，直接比较
   const normalizedPath = path.toLowerCase()
 
-  // 尝试在当前文件列表中查找
+  const file = fileList.value.find(f => f.path.toLowerCase() === normalizedPath)
-  const file = fileList.value.find(f => {
-    const normalizedFilePath = f.path.toLowerCase()
-    return normalizedFilePath === normalizedPath
-  })
 
   if (file) {
-    // 在当前列表中找到的文件
+    await openFileAsTab(file)
-    selectedFileItem.value = file
   } else {
-    // 不在当前列表中的文件（如收藏夹中的其他目录文件）
-    // 构造一个基本的 FileItem 对象
     const fileName = getFileName(path)
-    selectedFileItem.value = {
+    await openFileAsTab({
       path,
       name: fileName,
       isDir: false,
       size: 0,
       modified_time: '',
       is_favorite: isFavorite(path)
-    }
+    })
   }
-
-  // 加载文件内容
-  await loadFileContent(path)
-
-  // 记住上次打开的文件
-  localStorage.setItem(STORAGE_KEYS.FILESYSTEM.LAST_OPENED_FILE, path)
 }
 
 const loadFileContent = async (path: string) => {
@@ -1309,16 +1378,41 @@ onMounted(async () => {
     await loadDirectory(startPath)
   }
 
-  // 恢复上次打开的文件
+  // 恢复多文件预览会话
-  const lastFile = localStorage.getItem(STORAGE_KEYS.FILESYSTEM.LAST_OPENED_FILE)
+  const session = multiPreview.restoreSession()
-  if (lastFile) {
+  if (session.paths.length > 0 && !connectionManager.isRemote()) {
-    const normalized = lastFile.replace(/\\/g, '/').replace(/\/+$/, '')
+    for (const path of session.paths) {
-    const currentDir = filePath.value.replace(/\\/g, '/').replace(/\/+$/, '')
+      const name = path.split(/[/\\]/).pop() || path
-    const lastFileDir = normalized.substring(0, normalized.lastIndexOf('/')) || '/'
+      const { tab } = multiPreview.addTab({ path, name, isDir: false, size: 0, modified_time: '' })
-    if (lastFileDir.toLowerCase() === currentDir.toLowerCase()) {
+      if (path === session.activePath || path.replace(/\\/g, '/').toLowerCase() === (session.activePath || '').replace(/\\/g, '/').toLowerCase()) {
-      const found = fileList.value.find(f => f.path.replace(/\\/g, '/').toLowerCase() === normalized.toLowerCase())
+        multiPreview.activeTabId.value = tab.id
-      if (found && !found.isDir) {
+      }
-        await selectFile(found.path)
+      multiPreview.applyUnsavedContent(tab, session.unsavedMap)
+    }
+
+    // 加载激活 tab 的内容
+    const active = multiPreview.activeTab.value
+    if (active) {
+      selectedFileItem.value = active.fileItem
+      if (active.loaded) {
+        restoreTabState(active)
+      } else {
+        await loadFileContent(active.fileItem.path)
+        active.loaded = true
+      }
+    }
+  } else {
+    // 无会话记录，回退到旧逻辑：恢复上次打开的单个文件
+    const lastFile = localStorage.getItem(STORAGE_KEYS.FILESYSTEM.LAST_OPENED_FILE)
+    if (lastFile) {
+      const normalized = lastFile.replace(/\\/g, '/').replace(/\/+$/, '')
+      const currentDir = filePath.value.replace(/\\/g, '/').replace(/\/+$/, '')
+      const lastFileDir = normalized.substring(0, normalized.lastIndexOf('/')) || '/'
+      if (lastFileDir.toLowerCase() === currentDir.toLowerCase()) {
+        const found = fileList.value.find(f => f.path.replace(/\\/g, '/').toLowerCase() === normalized.toLowerCase())
+        if (found && !found.isDir) {
+          await selectFile(found.path)
+        }
       }
     }
   }
@@ -1335,6 +1429,9 @@ onUnmounted(() => {
   window.removeEventListener('keydown', handleKeyDown)
   window.removeEventListener('click', hideContextMenu)
   window.removeEventListener('paste', handlePaste)
+  // 应用关闭时立即持久化当前会话
+  cacheCurrentTabState()
+  multiPreview.persistSession()
 })
 
 // 键盘快捷键

frontend/src/types/file-system.ts

@@ -203,6 +203,10 @@ export interface FileEditorPanelConfig {
   isBinaryFile: boolean
   /** 文件修改时间（用于检测外部变更） */
   fileMtime: string
+  /** 多文件预览 Tab 列表 */
+  previewTabs?: any[]
+  /** 当前激活的 Tab ID */
+  activeTabId?: string | null
 }
 
 /**

frontend/src/utils/constants.js

@@ -31,6 +31,7 @@ export const STORAGE_KEYS = {
     COL_SETTINGS: 'app-filesystem-col-settings', // 列配置（显隐+顺序）
     SHOW_HEADER: 'app-filesystem-show-header', // 表头显隐
     LAST_OPENED_FILE: 'app-filesystem-last-opened-file', // 上次打开的文件路径
+    MULTI_PREVIEW_TABS: 'app-filesystem-multi-preview-tabs', // 多文件预览 tab 会话
   },
 
   // 设备测试模块

internal/filesystem/path_validator.go

@@ -123,12 +123,9 @@ func (v *DefaultPathValidator) checkWindowsSystemPaths(path string) *ValidationE
 	if len(lowerPath) >= 3 && lowerPath[1] == ':' {
 		driveLetter := lowerPath[0:1]
 
-		// 检查系统关键目录（仅保留最关键的系统目录）
+		// 检查系统核心目录
 		forbiddenDirs := []string{
 			driveLetter + ":\\windows",
-			driveLetter + ":\\program files",
-			driveLetter + ":\\program files (x86)",
-			driveLetter + ":\\program files (arm)",
 			driveLetter + ":\\system volume information",
 			driveLetter + ":\\boot",
 		}