diff --git a/app.go b/app.go
index e22c1e4..d5a64da 100644
--- a/app.go
+++ b/app.go
@@ -3,7 +3,6 @@ package main
 import (
 	"context"
 	"fmt"
-	"net/http"
 	"os"
 	"path/filepath"
 	stdruntime "runtime"
@@ -30,7 +29,6 @@ type App struct {
 	updateAPI       *api.UpdateAPI
 	configAPI       *api.ConfigAPI
 	pdfAPI          *api.PdfAPI
-	fileServer      *http.Server
 	filesystem      *filesystem.FileSystemService
 	isAlwaysOnTop   bool
 }
@@ -194,7 +192,7 @@ func (a *App) startFileServer() {
 		return
 	}
 
-	fmt.Println("[文件服务器] 启动在 http://localhost:18765")
+	fmt.Println("[文件服务器] 启动在 http://localhost:8073")
 }
 
 // Shutdown 应用关闭时调用
@@ -415,7 +413,7 @@ func (a *App) GetCommonPaths() (map[string]string, error) {
 	// Windows: 从注册表读取特殊文件夹真实路径（用户可能已修改位置）
 	folderGUIDs := map[string]string{
 		"desktop":   "{B4BFCC3A-DB2C-424C-B029-7FE99A87C641}",
-		"documents": "{D20B4C7F-5EA7-40D4B25E-039F6F1FCC8A}",
+		"documents": "{D20B4C7F-5EA7-424C-B25E-039F6F1FCC8A}",
 		"downloads": "{374DE290-123F-4565-9164-39C4925E467B}",
 	}
 	for name, guid := range folderGUIDs {
@@ -603,68 +601,84 @@ func (a *App) ListSqlTabs() ([]map[string]interface{}, error) {
 
 // ========== 版本更新管理接口 ==========
 
-// CheckUpdate 检查更新（UpdateAPI 可能尚未初始化完成）
-func (a *App) CheckUpdate() (map[string]interface{}, error) {
+// requireUpdateAPI 检查 updateAPI 是否已初始化，未初始化返回统一错误
+func (a *App) requireUpdateAPI() (*api.UpdateAPI, error) {
 	if a.updateAPI == nil {
 		return nil, fmt.Errorf("更新功能正在初始化中")
 	}
-	return a.updateAPI.CheckUpdate()
+	return a.updateAPI, nil
+}
+
+// CheckUpdate 检查更新（UpdateAPI 可能尚未初始化完成）
+func (a *App) CheckUpdate() (map[string]interface{}, error) {
+	api, err := a.requireUpdateAPI()
+	if err != nil {
+		return nil, err
+	}
+	return api.CheckUpdate()
 }
 
 // GetCurrentVersion 获取当前版本号
 func (a *App) GetCurrentVersion() (map[string]interface{}, error) {
-	if a.updateAPI == nil {
-		return nil, fmt.Errorf("更新功能正在初始化中")
+	api, err := a.requireUpdateAPI()
+	if err != nil {
+		return nil, err
 	}
-	return a.updateAPI.GetCurrentVersion()
+	return api.GetCurrentVersion()
 }
 
 // GetUpdateConfig 获取更新配置
 func (a *App) GetUpdateConfig() (map[string]interface{}, error) {
-	if a.updateAPI == nil {
-		return nil, fmt.Errorf("更新功能正在初始化中")
+	api, err := a.requireUpdateAPI()
+	if err != nil {
+		return nil, err
 	}
-	return a.updateAPI.GetUpdateConfig()
+	return api.GetUpdateConfig()
 }
 
 // SetUpdateConfig 设置更新配置
 func (a *App) SetUpdateConfig(autoCheckEnabled bool, checkIntervalMinutes int, checkURL string) (map[string]interface{}, error) {
-	if a.updateAPI == nil {
-		return nil, fmt.Errorf("更新功能正在初始化中")
+	api, err := a.requireUpdateAPI()
+	if err != nil {
+		return nil, err
 	}
-	return a.updateAPI.SetUpdateConfig(autoCheckEnabled, checkIntervalMinutes, checkURL)
+	return api.SetUpdateConfig(autoCheckEnabled, checkIntervalMinutes, checkURL)
 }
 
 // DownloadUpdate 下载更新包
 func (a *App) DownloadUpdate(downloadURL string) (map[string]interface{}, error) {
-	if a.updateAPI == nil {
-		return nil, fmt.Errorf("更新功能正在初始化中")
+	api, err := a.requireUpdateAPI()
+	if err != nil {
+		return nil, err
 	}
-	return a.updateAPI.DownloadUpdate(downloadURL)
+	return api.DownloadUpdate(downloadURL)
 }
 
 // InstallUpdate 安装更新包
 func (a *App) InstallUpdate(installerPath string, autoRestart bool) (map[string]interface{}, error) {
-	if a.updateAPI == nil {
-		return nil, fmt.Errorf("更新功能正在初始化中")
+	api, err := a.requireUpdateAPI()
+	if err != nil {
+		return nil, err
 	}
-	return a.updateAPI.InstallUpdate(installerPath, autoRestart)
+	return api.InstallUpdate(installerPath, autoRestart)
 }
 
 // InstallUpdateWithHash 安装更新包（带哈希验证）
 func (a *App) InstallUpdateWithHash(installerPath string, autoRestart bool, expectedHash string, hashType string) (map[string]interface{}, error) {
-	if a.updateAPI == nil {
-		return nil, fmt.Errorf("更新功能正在初始化中")
+	api, err := a.requireUpdateAPI()
+	if err != nil {
+		return nil, err
 	}
-	return a.updateAPI.InstallUpdateWithHash(installerPath, autoRestart, expectedHash, hashType)
+	return api.InstallUpdateWithHash(installerPath, autoRestart, expectedHash, hashType)
 }
 
 // VerifyUpdateFile 验证更新文件哈希值
 func (a *App) VerifyUpdateFile(filePath string, expectedHash string, hashType string) (map[string]interface{}, error) {
-	if a.updateAPI == nil {
-		return nil, fmt.Errorf("更新功能正在初始化中")
+	api, err := a.requireUpdateAPI()
+	if err != nil {
+		return nil, err
 	}
-	return a.updateAPI.VerifyUpdateFile(filePath, expectedHash, hashType)
+	return api.VerifyUpdateFile(filePath, expectedHash, hashType)
 }
 
 // startAutoUpdateCheck 启动自动更新检查
@@ -753,7 +767,7 @@ func (a *App) GetAuditLogs(limit int) ([]map[string]interface{}, error) {
 
 // GetFileServerURL 获取本地文件服务器的URL
 func (a *App) GetFileServerURL() string {
-	return "http://localhost:18765"
+	return "http://localhost:8073"
 }
 
 // DetectFileTypeByContent 通过文件内容检测文件类型（用于小文件）
diff --git a/build/appicon.png b/build/appicon.png
index 63617fe..3e081d9 100644
Binary files a/build/appicon.png and b/build/appicon.png differ
diff --git a/build/windows/icon.ico b/build/windows/icon.ico
index bfa0690..28e7c6e 100644
Binary files a/build/windows/icon.ico and b/build/windows/icon.ico differ
diff --git a/internal/api/config_api.go b/internal/api/config_api.go
index 99e90b4..3917914 100644
--- a/internal/api/config_api.go
+++ b/internal/api/config_api.go
@@ -136,40 +136,66 @@ func (api *ConfigAPI) SaveAppConfig(req SaveAppConfigRequest) (map[string]interf
 	}, nil
 }
 
-// MigrateTabConfig 迁移旧配置
+// MigrateTabConfig 迁移旧配置（device 移除 + openclaw-manager 重命名）
 func (api *ConfigAPI) MigrateTabConfig() error {
 	config, _ := api.configService.GetTabConfig()
 	if config == nil {
 		return nil
 	}
 
-	// 检查是否包含 device
-	hasDevice := false
+	needMigrate := false
+
+	// 检查是否包含需要迁移的旧 key
 	for _, tab := range config.AvailableTabs {
-		if tab.Key == "device" {
-			hasDevice = true
+		if tab.Key == "device" || tab.Key == "openclaw-manager" {
+			needMigrate = true
 			break
 		}
 	}
-	if !hasDevice {
+	if !needMigrate {
 		return nil
 	}
 
-	// 过滤掉 device
+	// 映射：旧 key → 新 key（不需要的移除）
+	keyMap := map[string]string{
+		"openclaw-manager": "version",
+		// "device": ""  // 直接过滤
+	}
+
 	newTabs := make([]service.TabDefinition, 0, len(config.AvailableTabs))
 	newVisible := make([]string, 0, len(config.VisibleTabs))
+	seenKeys := map[string]bool{}
+
 	for _, tab := range config.AvailableTabs {
-		if tab.Key != "device" {
+		newKey, shouldRename := keyMap[tab.Key]
+		if shouldRename {
+			if newKey == "" {
+				continue // 移除（如 device）
+			}
+			if seenKeys[newKey] {
+				continue // 避免重复
+			}
+			seenKeys[newKey] = true
+			newTabs = append(newTabs, service.TabDefinition{Key: newKey, Title: tab.Title, Enabled: tab.Enabled})
+		} else {
 			newTabs = append(newTabs, tab)
 		}
 	}
 	for _, key := range config.VisibleTabs {
-		if key != "device" {
+		if newKey, ok := keyMap[key]; ok {
+			if newKey != "" && !seenKeys[newKey] {
+				newVisible = append(newVisible, newKey)
+			}
+			// newKey == "" 时跳过（如 device）
+		} else {
 			newVisible = append(newVisible, key)
 		}
 	}
 
 	defaultTab := config.DefaultTab
+	if newKey, ok := keyMap[defaultTab]; ok && newKey != "" {
+		defaultTab = newKey
+	}
 	if defaultTab == "device" {
 		defaultTab = "file-system"
 	}
diff --git a/internal/filesystem/asset_handler.go b/internal/filesystem/asset_handler.go
index 5c9f32a..8a8c7b2 100644
--- a/internal/filesystem/asset_handler.go
+++ b/internal/filesystem/asset_handler.go
@@ -2,6 +2,7 @@ package filesystem
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"log"
 	"net/http"
@@ -48,6 +49,35 @@ var (
 // HTML 属性正则缓存（避免 replaceHtmlTagAttribute 中重复编译）
 var attrRegexCache sync.Map // map[string]*regexp.Regexp
 
+// 路径校验 sentinel error（用 errors.Is 匹配，不依赖字符串）
+var (
+	ErrPathInvalidEncoding = fmt.Errorf("invalid path encoding")
+	ErrPathTraversal      = fmt.Errorf("path traversal detected")
+	ErrPathUnsafe          = fmt.Errorf("unsafe path")
+)
+
+// validateFilePath 校验文件路径安全性（URL解码 + 路径遍历检测 + 安全检查）
+// 返回清理后的绝对路径，或 sentinel error
+func validateFilePath(rawPath string, logPrefix string) (string, error) {
+	decodedPath, err := url.QueryUnescape(rawPath)
+	if err != nil {
+		return "", ErrPathInvalidEncoding
+	}
+
+	if strings.Contains(decodedPath, "..") {
+		return "", ErrPathTraversal
+	}
+
+	filePath := strings.ReplaceAll(decodedPath, "/", "\\")
+	filePath = filepath.Clean(filePath)
+
+	if !isSafePath(filePath) {
+		return "", ErrPathUnsafe
+	}
+
+	return filePath, nil
+}
+
 // LocalFileServer 本地文件服务器（独立的 HTTP 服务器）
 type LocalFileServer struct {
 	server *http.Server
@@ -75,7 +105,7 @@ func StartLocalFileServer() (string, error) {
 
 		// 创建服务器（固定端口）
 		server := &http.Server{
-			Addr:    "localhost:18765",
+			Addr:    "localhost:8073",
 			Handler: mux,
 		}
 
@@ -90,7 +120,7 @@ func StartLocalFileServer() (string, error) {
 
 		localFileServer = &LocalFileServer{
 			server: server,
-			addr:   "localhost:18765",
+			addr:   "localhost:8073",
 		}
 
 		log.Printf("[LocalFileServer] 已启动，监听: %s", localFileServer.addr)
@@ -125,7 +155,6 @@ func handleLocalFileRequest(w http.ResponseWriter, r *http.Request) {
 
 	// 从 URL 路径获取文件路径（移除 /localfs/ 前缀）
 	pathPart := strings.TrimPrefix(r.URL.Path, "/localfs/")
-	log.Printf("[LocalFileHandler] TrimPrefix 后: %s", pathPart)
 
 	if pathPart == "" || pathPart == r.URL.Path {
 		log.Printf("[LocalFileHandler] 路径前缀无效")
@@ -133,34 +162,24 @@ func handleLocalFileRequest(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	// 🔒 修复：先进行URL解码，防止路径遍历攻击
-	decodedPath, err := url.QueryUnescape(pathPart)
+	// 校验路径安全性（URL解码 + 路径遍历检测 + 安全检查）
+	filePath, err := validateFilePath(pathPart, "[LocalFileHandler]")
 	if err != nil {
-		log.Printf("[LocalFileHandler] URL解码失败: %v", err)
-		http.Error(w, "Invalid path encoding", http.StatusBadRequest)
+		log.Printf("[LocalFileHandler] 路径校验失败: %v (%s)", err, pathPart)
+		switch {
+		case errors.Is(err, ErrPathInvalidEncoding):
+			http.Error(w, "Invalid path encoding", http.StatusBadRequest)
+		case errors.Is(err, ErrPathTraversal):
+			http.Error(w, "Path traversal detected", http.StatusForbidden)
+		case errors.Is(err, ErrPathUnsafe):
+			http.Error(w, "Unsafe path", http.StatusForbidden)
+		default:
+			http.Error(w, err.Error(), http.StatusBadRequest)
+		}
 		return
 	}
-	log.Printf("[LocalFileHandler] URL解码后: %s", decodedPath)
-
-	// 🔒 修复：在路径转换前检查是否包含危险字符
-	if strings.Contains(decodedPath, "..") {
-		log.Printf("[LocalFileHandler] 检测到路径遍历尝试")
-		http.Error(w, "Path traversal detected", http.StatusForbidden)
-		return
-	}
-
-	// 路径转换（统一使用反斜杠）
-	filePath := strings.ReplaceAll(decodedPath, "/", "\\")
-	filePath = filepath.Clean(filePath)
 	log.Printf("[LocalFileHandler] 最终路径: %s", filePath)
 
-	// 安全检查
-	if !isSafePath(filePath) {
-		log.Printf("[LocalFileHandler] 路径未通过安全检查: %s", filePath)
-		http.Error(w, "Unsafe path", http.StatusForbidden)
-		return
-	}
-
 	// 🔒 文件类型白名单检查
 	ext := strings.ToLower(filepath.Ext(filePath))
 	if !isAllowedFileType(ext) {
@@ -459,33 +478,31 @@ func handleHtmlPreviewRequest(w http.ResponseWriter, r *http.Request) {
 	}
 
 	// 解析参数
-	filePath := r.URL.Query().Get("path")
-	var err error
-	if filePath, err = url.QueryUnescape(filePath); err != nil {
-		http.Error(w, "Invalid path encoding", http.StatusBadRequest)
-		return
-	}
+	rawPath := r.URL.Query().Get("path")
 	theme := r.URL.Query().Get("theme")
 	if theme == "" {
 		theme = "light"
 	}
 
+	// 校验路径安全性（URL解码 + 路径遍历检测 + 安全检查）
+	filePath, err := validateFilePath(rawPath, "[HtmlPreview]")
+	if err != nil {
+		log.Printf("[HtmlPreview] 路径校验失败: %v (%s)", err, rawPath)
+		switch {
+		case errors.Is(err, ErrPathInvalidEncoding):
+			http.Error(w, "Invalid path encoding", http.StatusBadRequest)
+		case errors.Is(err, ErrPathTraversal):
+			http.Error(w, "Path traversal detected", http.StatusForbidden)
+		case errors.Is(err, ErrPathUnsafe):
+			http.Error(w, "Unsafe path", http.StatusForbidden)
+		default:
+			http.Error(w, err.Error(), http.StatusBadRequest)
+		}
+		return
+	}
+
 	log.Printf("[HtmlPreview] 收到请求: path=%s, theme=%s", filePath, theme)
 
-	// 安全检查
-	if !isSafePath(filePath) {
-		log.Printf("[HtmlPreview] 路径未通过安全检查: %s", filePath)
-		http.Error(w, "Unsafe path", http.StatusForbidden)
-		return
-	}
-
-	// 检查路径遍历攻击
-	if strings.Contains(filePath, "..") {
-		log.Printf("[HtmlPreview] 检测到路径遍历尝试: %s", filePath)
-		http.Error(w, "Path traversal detected", http.StatusForbidden)
-		return
-	}
-
 	// 读取文件
 	content, err := os.ReadFile(filePath)
 	if err != nil {
diff --git a/internal/service/config_service.go b/internal/service/config_service.go
index 0be8eae..bd49d58 100644
--- a/internal/service/config_service.go
+++ b/internal/service/config_service.go
@@ -44,9 +44,9 @@ var defaultTabConfig = TabConfig{
 		{Key: "file-system", Title: "文件管理", Enabled: true},
 		{Key: "db-cli", Title: "数据库", Enabled: true},
 		{Key: "markdown-editor", Title: "Markdown", Enabled: true},
-		{Key: "openclaw-manager", Title: "OpenClaw", Enabled: true},
+		{Key: "version", Title: "版本历史", Enabled: true},
 	},
-	VisibleTabs: []string{"file-system", "db-cli", "markdown-editor", "openclaw-manager"},
+	VisibleTabs: []string{"file-system", "db-cli", "markdown-editor", "version"},
 	DefaultTab:  "file-system",
 }
 
diff --git a/web/package-lock.json b/web/package-lock.json
index 744cd85..09e0f43 100644
--- a/web/package-lock.json
+++ b/web/package-lock.json
@@ -25,6 +25,7 @@
         "@codemirror/lang-yaml": "^6.1.2",
         "@codemirror/language": "^6.12.1",
         "@codemirror/legacy-modes": "^6.5.2",
+        "@codemirror/search": "^6.6.0",
         "@codemirror/state": "^6.5.3",
         "@codemirror/theme-one-dark": "^6.1.3",
         "@codemirror/view": "^6.39.8",
@@ -414,6 +415,17 @@
         "crelt": "^1.0.5"
       }
     },
+    "node_modules/@codemirror/search": {
+      "version": "6.6.0",
+      "resolved": "https://registry.npmmirror.com/@codemirror/search/-/search-6.6.0.tgz",
+      "integrity": "sha512-koFuNXcDvyyotWcgOnZGmY7LZqEOXZaaxD/j6n18TCLx2/9HieZJ5H6hs1g8FiRxBD0DNfs0nXn17g872RmYdw==",
+      "license": "MIT",
+      "dependencies": {
+        "@codemirror/state": "^6.0.0",
+        "@codemirror/view": "^6.37.0",
+        "crelt": "^1.0.5"
+      }
+    },
     "node_modules/@codemirror/state": {
       "version": "6.5.3",
       "resolved": "https://registry.npmmirror.com/@codemirror/state/-/state-6.5.3.tgz",
diff --git a/web/package.json b/web/package.json
index d45585b..04fb609 100644
--- a/web/package.json
+++ b/web/package.json
@@ -25,6 +25,7 @@
     "@codemirror/lang-yaml": "^6.1.2",
     "@codemirror/language": "^6.12.1",
     "@codemirror/legacy-modes": "^6.5.2",
+    "@codemirror/search": "^6.6.0",
     "@codemirror/state": "^6.5.3",
     "@codemirror/theme-one-dark": "^6.1.3",
     "@codemirror/view": "^6.39.8",
diff --git a/web/package.json.md5 b/web/package.json.md5
index 74e7cb4..10359ee 100644
--- a/web/package.json.md5
+++ b/web/package.json.md5
@@ -1 +1 @@
-0e1fafcbb6b28922a38f6c5316932015
\ No newline at end of file
+c0e9e27e045c6118704c87fcf34a03de
\ No newline at end of file
diff --git a/web/src/App.vue b/web/src/App.vue
index e189bf3..b424a4b 100644
--- a/web/src/App.vue
+++ b/web/src/App.vue
@@ -101,12 +101,13 @@ import FileSystem from './components/FileSystem/index.vue'
 import SettingsPanel from './components/SettingsPanel.vue'
 import UpdateNotification from './components/UpdateNotification.vue'
 import {useUpdateStore} from './stores/update'
-import {useConfigStore} from './stores/config'
+import {useConfigStore, type AppConfig} from './stores/config'
 
 // 存储键
 const ACTIVE_TAB_STORAGE_KEY = 'app-active-tab'
 
 // 从 localStorage 恢复上次打开的区域，默认为 'file-system'
+// 兼容旧版：'user' 是 v0.2.x 之前的 tab key，已废弃需迁移
 const savedTab = localStorage.getItem(ACTIVE_TAB_STORAGE_KEY)
 const activeTab = ref((savedTab === 'user' ? 'file-system' : savedTab) || 'file-system')
 const showSettings = ref(false)
@@ -125,7 +126,7 @@ const appConfig = computed(() => configStore.appConfig)
 const visibleTabs = computed(() => configStore.visibleTabs)
 
 // 保存配置
-const handleSaveConfig = async (config) => {
+const handleSaveConfig = async (config: AppConfig) => {
   try {
     await configStore.saveConfig(config)
     showSettings.value = false
@@ -148,7 +149,7 @@ const loadConfig = async () => {
 }
 
 // 获取组件
-const getComponent = (key) => {
+const getComponent = (key: string) => {
   const components = {
     'file-system': FileSystem,
     'db-cli': DbCli,
@@ -376,4 +377,9 @@ watch(activeTab, (newTab) => {
 .arco-tooltip {
   --wails-draggable: no-drag;
 }
+
+/* 桌面应用：禁止 html/body 级别滚动条，所有滚动由内部组件自行处理 */
+html, body {
+  overflow: hidden !important;
+}
 </style>
diff --git a/web/src/components/CodeEditor.vue b/web/src/components/CodeEditor.vue
index 3323eef..4658cdd 100644
--- a/web/src/components/CodeEditor.vue
+++ b/web/src/components/CodeEditor.vue
@@ -3,34 +3,25 @@
 </template>
 
 <script setup>
-import { ref, onMounted, watch, onBeforeUnmount, computed, nextTick } from 'vue'
+import { ref, onMounted, watch, onBeforeUnmount, nextTick } from 'vue'
 import {
   EditorView, lineNumbers, highlightActiveLineGutter, keymap,
   EditorState, Compartment,
   defaultKeymap, history,
   bracketMatching, defaultHighlightStyle, syntaxHighlighting,
-  oneDark
+  oneDark,
+  openSearchPanel, search
 } from '@/utils/codemirrorExports'
 import { useThemeStore } from '@/stores/theme'
 import { loadLanguageExtension, getLanguageFromExtension } from '@/utils/codeMirrorLoader'
 
-// ==================== 主题定义 ====================
-
-// 亮色主题的基础样式
-const lightTheme = EditorView.theme({
-  '&': { backgroundColor: '#ffffff' },
-  '.cm-gutters': { backgroundColor: '#f7f7f7', color: '#999', border: 'none' },
-  '.cm-activeLineGutter': { backgroundColor: '#e8e8e8', color: '#333' },
-  '.cm-line': { caretColor: '#000' },
-  '.cm-selection': { backgroundColor: '#d9d9d9' },
-  '.cm-cursor': { borderLeftColor: '#000' }
-})
-
 // ==================== Props & Emits ====================
 
 const props = defineProps({
   modelValue: { type: String, required: true },
-  fileExtension: { type: String, default: '' }
+  fileExtension: { type: String, default: '' },
+  filePath: { type: String, default: '' },
+  fileMtime: { type: String, default: '' }
 })
 
 const emit = defineEmits(['update:modelValue'])
@@ -41,6 +32,36 @@ const themeStore = useThemeStore()
 const editorContainer = ref(null)
 let view = null
 
+// 滚动位置缓存：LRU 最多 5 份，每份 3 分钟过期
+const MAX_SCROLL_CACHE = 5
+const SCROLL_CACHE_TTL = 3 * 60 * 1000 // 3 分钟
+const fileScrollPositions = new Map() // filePath → { scrollTop, anchor, timestamp }
+let currentFilePath = ''
+let saveScrollTimer = null
+
+// 清理过期缓存 + LRU 淘汰，保持最多 MAX_SCROLL_CACHE 条
+const cleanScrollCache = () => {
+  const now = Date.now()
+  // 清理过期的
+  for (const [key, val] of fileScrollPositions) {
+    if (now - val.timestamp > SCROLL_CACHE_TTL) {
+      fileScrollPositions.delete(key)
+    }
+  }
+  // LRU：超出上限时删除最旧的
+  if (fileScrollPositions.size > MAX_SCROLL_CACHE) {
+    let oldestKey = null
+    let oldestTime = Infinity
+    for (const [key, val] of fileScrollPositions) {
+      if (val.timestamp < oldestTime) {
+        oldestTime = val.timestamp
+        oldestKey = key
+      }
+    }
+    if (oldestKey) fileScrollPositions.delete(oldestKey)
+  }
+}
+
 // 使用 Compartment 实现动态切换，避免重建编辑器
 const themeCompartment = new Compartment()
 const languageCompartment = new Compartment()
@@ -87,6 +108,9 @@ const createExtensions = () => {
     keymap.of(defaultKeymap),
     bracketMatching(),
 
+    // 查找替换（Ctrl+F / Ctrl+H）
+    search(),
+
     // 内容更新监听（带防抖）
     EditorView.updateListener.of((update) => {
       if (update.docChanged) {
@@ -98,7 +122,7 @@ const createExtensions = () => {
     EditorView.theme({
       '&': { height: '100%', fontSize: '13px' },
       '.cm-scroller': { overflow: 'auto', fontFamily: 'Consolas, Monaco, Courier New, monospace' },
-      '.cm-content': { padding: '8px', minHeight: '100%' },
+      '.cm-content': { padding: '8px' },
       '.cm-line': { padding: '0 0' },
       '&.cm-focused': { outline: 'none' }
     }),
@@ -143,6 +167,12 @@ const createEditor = (docContent = '') => {
 
   view = new EditorView({ state, parent: editorContainer.value })
 
+  // 滚动时防抖保存位置
+  view.scrollDOM.addEventListener('scroll', () => {
+    if (saveScrollTimer) clearTimeout(saveScrollTimer)
+    saveScrollTimer = setTimeout(saveScrollPosition, 200)
+  }, { passive: true })
+
   // 初始化语言
   initLanguage()
 }
@@ -163,8 +193,10 @@ onMounted(() => {
 })
 
 onBeforeUnmount(() => {
-  if (emitTimeout) {
-    clearTimeout(emitTimeout)
+  if (emitTimeout) clearTimeout(emitTimeout)
+  if (saveScrollTimer) clearTimeout(saveScrollTimer)
+  if (view?.scrollDOM) {
+    view.scrollDOM.removeEventListener('scroll', saveScrollPosition)
   }
   view?.destroy()
   view = null
@@ -172,12 +204,64 @@ onBeforeUnmount(() => {
 
 // ==================== 监听器 ====================
 
-// 监听外部内容变化
-watch(() => props.modelValue, (newValue) => {
-  if (view && newValue !== view.state.doc.toString()) {
+// 保存当前文件滚动位置（防抖）
+const saveScrollPosition = () => {
+  if (!view || !currentFilePath) return
+  const scroller = view.scrollDOM
+  if (!scroller) return
+  fileScrollPositions.set(currentFilePath, {
+    scrollTop: scroller.scrollTop,
+    anchor: view.state.selection.main.anchor,
+    timestamp: Date.now()
+  })
+  cleanScrollCache()
+}
+
+// 监听外部内容变化（切换文件/文件变更时触发）
+watch([() => props.modelValue, () => props.fileMtime], ([newValue, newMtime], [oldValue, oldMtime]) => {
+  // 文件修改时间变了 → 说明磁盘内容有变更 → 强制刷新
+  const mtimeChanged = newMtime && oldMtime && newMtime !== oldMtime
+  if (view && (mtimeChanged || newValue !== view.state.doc.toString())) {
+    // 先保存旧文件的滚动位置
+    saveScrollPosition()
+
+    const newPath = props.filePath || ''
+    const isSameFile = currentFilePath && currentFilePath === newPath
+
     view.dispatch({
-      changes: { from: 0, to: view.state.doc.length, insert: newValue || '' }
+      changes: { from: 0, to: view.state.doc.length, insert: newValue || '' },
+      selection: { anchor: 0 }
     })
+
+    currentFilePath = newPath
+
+    if (isSameFile && fileScrollPositions.has(newPath)) {
+      // 同一文件 → 检查是否过期，未过期则恢复位置
+      const saved = fileScrollPositions.get(newPath)
+      if (saved && Date.now() - saved.timestamp <= SCROLL_CACHE_TTL) {
+        nextTick(() => {
+          if (view) {
+            view.dispatch({
+              selection: { anchor: saved.anchor },
+              effects: EditorView.scrollIntoView(saved.anchor)
+            })
+            view.scrollDOM.scrollTop = saved.scrollTop
+          }
+        })
+      } else {
+        // 过期了 → 强制滚动到顶部
+        nextTick(() => {
+          if (view) view.scrollDOM.scrollTop = 0
+        })
+      }
+    } else {
+      // 不同文件 → 强制滚动到顶部（scrollIntoView 不一定重置 DOM scrollTop）
+      nextTick(() => {
+        if (view) {
+          view.scrollDOM.scrollTop = 0
+        }
+      })
+    }
   }
 })
 
@@ -214,6 +298,6 @@ watch(() => props.fileExtension, () => {
 }
 
 .codemirror-editor :deep(.cm-content) {
-  height: 100%;
+  /* 不设 height，让 CodeMirror 虚拟滚动自行计算文档高度 */
 }
 </style>
diff --git a/web/src/components/FileSystem/components/FileEditorPanel.vue b/web/src/components/FileSystem/components/FileEditorPanel.vue
index 76d66f3..8748d49 100644
--- a/web/src/components/FileSystem/components/FileEditorPanel.vue
+++ b/web/src/components/FileSystem/components/FileEditorPanel.vue
@@ -155,6 +155,8 @@
           <AsyncCodeEditor
             :model-value="config.fileContent"
             :file-extension="config.currentFileExtension"
+            :file-path="config.currentFileFullPath"
+            :file-mtime="config.fileMtime"
             @update:model-value="handleContentUpdate"
             class="code-editor"
           />
@@ -218,6 +220,8 @@
           <AsyncCodeEditor
             :model-value="config.fileContent"
             :file-extension="config.currentFileExtension"
+            :file-path="config.currentFileFullPath"
+            :file-mtime="config.fileMtime"
             @update:model-value="handleContentUpdate"
             class="code-editor"
           />
@@ -284,6 +288,8 @@
           <AsyncCodeEditor
             :model-value="config.fileContent"
             :file-extension="config.currentFileExtension"
+            :file-path="config.currentFileFullPath"
+            :file-mtime="config.fileMtime"
             @update:model-value="handleContentUpdate"
             class="code-editor"
           />
@@ -337,6 +343,8 @@
         <AsyncCodeEditor
           :model-value="config.fileContent"
           :file-extension="config.currentFileExtension"
+          :file-path="config.currentFileFullPath"
+          :file-mtime="config.fileMtime"
           @update:model-value="handleContentUpdate"
           class="code-editor"
         />
@@ -430,7 +438,7 @@ const htmlPreviewUrl = computed(() => {
     return ''
   }
   const encodedPath = encodeURIComponent(props.config.currentFileFullPath)
-  return `http://localhost:18765/localfs/html-preview?path=${encodedPath}`
+  return `http://localhost:8073/localfs/html-preview?path=${encodedPath}`
 })
 
 // 计算属性：判断文件是否在当前目录
@@ -775,11 +783,11 @@ watch([markdownPreviewRef, () => props.config.isEditMode], ([refVal, isEditMode]
 // 处理 HTML iframe 发送的消息（链接点击）
 const handleHtmlIframeMessage = (event: MessageEvent) => {
   // 安全检查：接受来自本地文件服务器或同源的消息
-  // Wails 应用的 origin 可能是 wails://...，而 iframe 来自 http://localhost:18765
+  // Wails 应用的 origin 可能是 wails://...，而 iframe 来自 http://localhost:8073
   const allowedOrigins = [
     window.location.origin,
     'null',           // about:blank 或 data: URL
-    'http://localhost:18765',  // 本地文件服务器
+    'http://localhost:8073',  // 本地文件服务器
   ]
   if (!allowedOrigins.includes(event.origin)) {
     return
diff --git a/web/src/components/FileSystem/components/FileListPanel.vue b/web/src/components/FileSystem/components/FileListPanel.vue
index 835dde5..fbb1380 100644
--- a/web/src/components/FileSystem/components/FileListPanel.vue
+++ b/web/src/components/FileSystem/components/FileListPanel.vue
@@ -4,7 +4,7 @@
       <span class="panel-title">📋 文件列表</span>
       <div class="panel-header-right">
         <span class="panel-count">{{ config.fileList.length }} 项</span>
-        <a-popover trigger="click" position="bottom" :content-style="{ padding: '4px', width: '150px' }">
+        <a-popover trigger="click" position="bottom" :content-style="{ padding: '4px', width: '170px' }">
           <a-button size="mini" type="text" class="settings-btn">
             <icon-more />
           </a-button>
@@ -31,6 +31,18 @@
                 :disabled="col.key === 'name' && visibleCount <= 1"
                 @change="(val: boolean) => toggleColumn(col.key, val)"
               >{{ col.label }}</a-checkbox>
+              <!-- 可排序列：点击图标排序 -->
+              <span
+                v-if="colSortMap[col.key]"
+                class="col-sort-icon"
+                :class="{ 'col-sort-active': sortBy === colSortMap[col.key] }"
+                :title="sortBy === colSortMap[col.key] ? (sortOrder === 'asc' ? '升序 → 点击降序' : '降序 → 点击升序') : `按${col.label}排序`"
+                @click.stop="emit('sort', colSortMap[col.key])"
+              >
+                <IconSort v-if="sortBy !== colSortMap[col.key]" />
+                <IconSortAscending v-else-if="sortOrder === 'asc'" />
+                <IconSortDescending v-else />
+              </span>
             </div>
           </template>
         </a-popover>
@@ -101,6 +113,14 @@ interface Emits {
 
 const emit = defineEmits<Emits>()
 
+// 列 key → 排序字段映射
+const colSortMap: Record<string, string> = {
+  icon: 'type',
+  name: 'name',
+  time: 'modified_time',
+  size: 'size'
+}
+
 // ========== 列配置（支持显隐 + 排序） ==========
 const COL_SETTINGS_KEY = STORAGE_KEYS.FILESYSTEM.COL_SETTINGS
 const SHOW_HEADER_KEY = STORAGE_KEYS.FILESYSTEM.SHOW_HEADER
@@ -139,6 +159,7 @@ function loadColSettings(): ColumnConfig[] {
 }
 
 const colSettings = ref<ColumnConfig[]>(loadColSettings())
+// 默认显示表头（localStorage 无值时兼容旧行为）
 const showHeader = ref(localStorage.getItem(SHOW_HEADER_KEY) !== 'false')
 
 // 手动持久化（避免 deep watch 频繁写入）
@@ -382,6 +403,25 @@ defineExpose({ focusEditingItem })
   color: var(--color-text-2);
 }
 
+/* 列项排序图标 */
+.col-sort-icon {
+  margin-left: auto;
+  font-size: 12px;
+  color: var(--color-text-4);
+  cursor: pointer;
+  padding: 2px;
+  border-radius: 3px;
+  flex-shrink: 0;
+  transition: all 0.15s;
+}
+.col-sort-icon:hover {
+  background: var(--color-fill-2);
+  color: var(--color-text-2);
+}
+.col-sort-active {
+  color: rgb(var(--primary-6));
+}
+
 /* 滚动容器 */
 .file-list-wrapper {
   flex: 1;
diff --git a/web/src/components/FileSystem/components/Toolbar.vue b/web/src/components/FileSystem/components/Toolbar.vue
index b82c255..636f052 100644
--- a/web/src/components/FileSystem/components/Toolbar.vue
+++ b/web/src/components/FileSystem/components/Toolbar.vue
@@ -27,6 +27,22 @@
         </div>
         <!-- 正常模式：面包屑导航 -->
         <div v-else class="path-breadcrumb-wrapper">
+          <!-- 快捷访问（仅图标，面包屑前） -->
+          <a-dropdown>
+            <a-button size="mini" type="text">
+              <template #icon><icon-forward /></template>
+            </a-button>
+            <template #content>
+              <a-doption
+                v-for="shortcut in config.commonPaths"
+                :key="shortcut.path"
+                @click="handleGoToPath(shortcut.path)"
+              >
+                <template #icon>{{ (shortcut.name || '').split(' ')[0] }}</template>
+                {{ (shortcut.name || '').substring(2) }}
+              </a-doption>
+            </template>
+          </a-dropdown>
           <PathBreadcrumb
             :path="config.filePath"
             @navigate="handleGoToPath"
@@ -49,45 +65,17 @@
     </div>
 
     <div class="toolbar-right">
-      <!-- 快捷路径下拉 -->
-      <a-dropdown v-if="!config.isBrowsingZip">
-        <a-button size="small">
-          <template #icon>
-            <icon-forward />
-          </template>
-          快捷访问
-        </a-button>
-        <template #content>
-          <a-doption
-            v-for="shortcut in config.commonPaths"
-            :key="shortcut.path"
-            @click="handleGoToPath(shortcut.path)"
-          >
-            <template #icon>{{ (shortcut.name || '').split(' ')[0] }}</template>
-            {{ (shortcut.name || '').substring(2) }}
-          </a-doption>
-        </template>
-      </a-dropdown>
-
-      <!-- 历史记录下拉 -->
-      <a-dropdown>
-        <a-button size="small">
-          <template #icon>
-            <icon-history />
-          </template>
-          历史
-        </a-button>
-        <template #content>
-          <a-doption
-            v-for="path in config.pathHistory.slice(0, 10)"
-            :key="path"
-            @click="handleGoToPath(path)"
-          >
-            {{ path }}
-          </a-doption>
-          <a-doption v-if="config.pathHistory.length === 0" disabled>暂无历史</a-doption>
-        </template>
-      </a-dropdown>
+      <!-- 搜索框 -->
+      <a-input-search
+        :model-value="config.searchKeyword"
+        placeholder="搜索文件..."
+        size="small"
+        class="toolbar-search"
+        allow-clear
+        @search="handleSearch"
+        @update:model-value="handleSearchInput"
+        @keyup.escape="handleClearSearch"
+      />
 
       <!-- 刷新按钮 -->
       <a-button
@@ -101,6 +89,29 @@
         刷新
       </a-button>
 
+      <!-- 历史记录下拉（仅图标，Ctrl+H） -->
+      <a-dropdown
+        v-model:popup-visible="historyPopupVisible"
+      >
+        <a-tooltip content="历史记录 (Ctrl+H)" position="left">
+          <a-button size="small">
+            <template #icon><icon-history /></template>
+          </a-button>
+        </a-tooltip>
+        <template #content>
+          <div class="history-dropdown-content">
+            <a-doption
+              v-for="path in config.pathHistory.slice(0, 10)"
+              :key="path"
+              @click="handleGoToPath(path)"
+            >
+              <span class="history-path-text">{{ path }}</span>
+            </a-doption>
+            <a-doption v-if="config.pathHistory.length === 0" disabled>暂无历史</a-doption>
+          </div>
+        </template>
+      </a-dropdown>
+
       <!-- 切换侧边栏 -->
       <a-button
         size="small"
@@ -132,6 +143,7 @@ const props = defineProps<Props>()
 interface Emits {
   (e: 'update:filePath', path: string): void
   (e: 'update:showSidebar', show: boolean): void
+  (e: 'update:searchKeyword', keyword: string): void
   (e: 'refresh'): void
   (e: 'exitZip'): void
   (e: 'goToPath', path: string): void
@@ -141,6 +153,9 @@ interface Emits {
 
 const emit = defineEmits<Emits>()
 
+// 历史记录下拉显隐（供父组件 Ctrl+H 调用）
+const historyPopupVisible = ref(false)
+
 // 事件处理
 const handleGoToPath = (path: string) => {
   emit('goToPath', path)
@@ -170,8 +185,28 @@ const handleToggleSidebar = () => {
   emit('update:showSidebar', !props.config.showSidebar)
 }
 
+const handleSearch = (keyword: string) => {
+  emit('update:searchKeyword', keyword)
+}
+
+const handleSearchInput = (keyword: string) => {
+  emit('update:searchKeyword', keyword)
+}
+
+const handleClearSearch = () => {
+  emit('update:searchKeyword', '')
+}
+
+// 切换历史记录下拉面板（供父组件 Ctrl+H 调用）
+const toggleHistoryDropdown = () => {
+  historyPopupVisible.value = !historyPopupVisible.value
+}
+
 const { copied, copy: copyPath } = useClipboardCopy()
 
+// 暴露方法给父组件
+defineExpose({ toggleHistoryDropdown })
+
 const handleCopyPath = async () => {
   await copyPath(props.config.filePath)
 }
@@ -202,6 +237,11 @@ const handleCopyPath = async () => {
   flex-shrink: 0;
 }
 
+.toolbar-search {
+  width: 180px;
+  flex-shrink: 0;
+}
+
 .path-input-wrapper {
   flex: 1;
   min-width: 200px;
@@ -280,4 +320,19 @@ const handleCopyPath = async () => {
   overflow: hidden;
   text-overflow: ellipsis;
 }
+
+/* 历史记录下拉 */
+.history-dropdown-content {
+  max-width: 420px;
+  max-height: 300px;
+  overflow-y: auto;
+}
+
+.history-path-text {
+  display: block;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  max-width: 380px;
+}
 </style>
diff --git a/web/src/components/FileSystem/composables/useFileEdit.ts b/web/src/components/FileSystem/composables/useFileEdit.ts
index ea7eb5e..599d2c2 100644
--- a/web/src/components/FileSystem/composables/useFileEdit.ts
+++ b/web/src/components/FileSystem/composables/useFileEdit.ts
@@ -13,10 +13,11 @@ import {
   isTextEditable, isConfigFile
 } from '@/utils/fileTypeHelpers'
 import { useFileOperations } from './useFileOperations'
+import type { FileItem } from '@/types/file-system'
 
 export interface UseFileEditOptions {
-  currentFilePath?: any
-  currentDirectory?: any
+  currentFilePath?: import('vue').Ref<FileItem | null>
+  currentDirectory?: import('vue').Ref<string>
 }
 
 // 文件大小限制（5MB）
@@ -46,9 +47,6 @@ export function useFileEdit(options: UseFileEditOptions = {}) {
   // 文件版本跟踪（用于防止切换文件后的过期更新）
   const fileVersion = ref(0)
 
-  // 最后一次文件加载的时间戳，用于过滤过期更新
-  const lastLoadTime = ref(0)
-
   // 使用文件操作 composable
   const { readFile, writeFile } = useFileOperations({
     onSuccess: (operation, data) => {
@@ -81,7 +79,7 @@ export function useFileEdit(options: UseFileEditOptions = {}) {
    * 判断是否为二进制文件（基于扩展名）
    * 返回值: true=已知二进制, false=已知非二进制(文本/媒体/Office), null=未知需检测
    */
-  const isBinaryFileByExt = (filepath: any): boolean | null => {
+  const isBinaryFileByExt = (filepath: string | FileItem): boolean | null => {
     const path = getFilePath(filepath)
     const ext = getExt(path)
     if (!ext) return null // 无扩展名返回 null，表示需要进一步检测
@@ -185,9 +183,6 @@ export function useFileEdit(options: UseFileEditOptions = {}) {
       // 增加文件版本号，使之前的过期更新失效
       fileVersion.value++
 
-      // 记录加载时间戳，用于过滤过期更新
-      lastLoadTime.value = Date.now()
-
       // 注意：不再清空内容，避免 HTML 预览切换时闪烁
       // 新内容加载完成后会直接替换旧内容
 
@@ -456,6 +451,33 @@ ${ext ? `文件类型:  ${fileTypeDesc}\n` : ''}
     }
   }
 
+  /**
+   * 仅更新文件路径（重命名场景：内容不变，只切换路径关联）
+   * 迁移草稿 key，更新 currentFilePathRef
+   */
+  const updateFilePath = (newPath: string) => {
+    const oldPath = currentFilePathRef.value
+
+    // 迁移草稿（旧 key → 新 key）
+    if (draftKey.value && oldPath !== newPath) {
+      try {
+        const draft = localStorage.getItem(draftKey.value)
+        if (draft) {
+          const newKey = `${STORAGE_KEYS.FILESYSTEM.FILE_DRAFT}-${newPath}`
+          localStorage.setItem(newKey, draft)
+          localStorage.removeItem(draftKey.value)
+          draftKey.value = newKey
+        }
+      } catch (error) {
+        console.warn('[useFileEdit] 草稿迁移失败:', error)
+      }
+    }
+
+    // 只更新内部路径字符串引用，不触碰 currentFilePath（它是 FileItem 对象，由父组件管理）
+    // 这样不会触发 watch → clearDraft
+    currentFilePathRef.value = newPath
+  }
+
   /**
    * 重置文件内容
    */
@@ -501,14 +523,10 @@ ${ext ? `文件类型:  ${fileTypeDesc}\n` : ''}
   }
 
   /**
-   * 更新文件内容
-   * 注意：需要确保更新后 fileContent 和 originalContent 保持正确的同步关系
+   * 更新文件内容（仅版本号匹配时接受，防止快速切换文件时旧更新覆盖新内容）
    */
   const updateContent = (content: string, expectedVersion?: number) => {
-    // 如果提供了期望的版本号，检查是否匹配
-    // 这用于防止快速切换文件时，旧文件的防抖更新覆盖新文件的内容
     if (expectedVersion !== undefined && expectedVersion !== fileVersion.value) {
-      // 版本不匹配，这是一个过期的更新，忽略它
       console.debug('[useFileEdit] 忽略过期更新（版本不匹配）:', {
         expected: expectedVersion,
         current: fileVersion.value,
@@ -517,25 +535,9 @@ ${ext ? `文件类型:  ${fileTypeDesc}\n` : ''}
       return
     }
 
-    // 额外检查：如果更新是在文件加载后的短时间内，可能是过期更新
-    // 防抖时间是 150ms，我们使用 300ms 的安全边际
-    const timeSinceLoad = Date.now() - lastLoadTime.value
-    if (timeSinceLoad < 300) {
-      console.debug('[useFileEdit] 忽略过期更新（时间窗口内）:', {
-        timeSinceLoad,
-        content: content.substring(0, 50)
-      })
-      return
-    }
-
-    // 确保只有在内容真正改变时才更新
     if (fileContent.value !== content) {
       fileContent.value = content
     }
-
-    // 自动保存草稿（防抖）
-    // 实际实现应该使用防抖函数
-    // saveDraft()
   }
 
   /**
@@ -556,12 +558,6 @@ ${ext ? `文件类型:  ${fileTypeDesc}\n` : ''}
     return filePath.startsWith(currentDirectory.value)
   }
 
-  // 监听文件内容变化，自动保存草稿
-  watch(fileContent, () => {
-    // 实际实现应该使用防抖
-    // saveDraft()
-  }, { deep: true })
-
   // 监听文件路径变化，清除草稿
   watch(currentFilePath, (newPath, oldPath) => {
     if (newPath !== oldPath) {
@@ -604,6 +600,7 @@ ${ext ? `文件类型:  ${fileTypeDesc}\n` : ''}
     // 其他
     resetContent,
     clearContent,
+    updateFilePath,
     setEditorHeight,
 
     // 文件类型检查
diff --git a/web/src/components/FileSystem/composables/useFilePreview.ts b/web/src/components/FileSystem/composables/useFilePreview.ts
index 174fd90..f87710c 100644
--- a/web/src/components/FileSystem/composables/useFilePreview.ts
+++ b/web/src/components/FileSystem/composables/useFilePreview.ts
@@ -29,8 +29,17 @@ export interface UseFilePreviewOptions {
 export function useFilePreview(options: UseFilePreviewOptions = {}) {
   const { filePath = ref(''), isBrowsingZip = ref(false) } = options
 
-  // 文件服务器 URL（硬编码，与旧版本保持一致）
-  const fileServerURL = 'http://localhost:18765'
+  // 文件服务器 URL（优先从后端获取，降级到默认值）
+  let _fileServerURL = 'http://localhost:8073'
+  const initFileServerURL = async () => {
+    try {
+      const url = await window.go.main.App.GetFileServerURL()
+      if (url) _fileServerURL = url
+    } catch { /* 使用默认值 */ }
+  }
+  initFileServerURL()
+
+  const getFileServerURL = () => _fileServerURL
 
   // 预览 URL
   const previewUrl = ref('')
@@ -45,7 +54,7 @@ export function useFilePreview(options: UseFilePreviewOptions = {}) {
   const getPreviewUrl = (path: string): string => {
     if (!path) return ''
     // 使用与旧版本相同的 URL 格式：/localfs/ 路径 + 规范化路径
-    return `${fileServerURL}/localfs/${normalizeFilePath(path, true)}`
+    return `${getFileServerURL()}/localfs/${normalizeFilePath(path, true)}`
   }
 
   /**
@@ -188,12 +197,6 @@ export function useFilePreview(options: UseFilePreviewOptions = {}) {
 
     // 文件类型判断（同步，基于扩展名）
     getFileType,
-    isImageFile,
-    isVideoFile,
-    isAudioFile,
-    isPdfFile,
-    isHtmlFile,
-    isMarkdownFile,
     isPreviewable,
     isEditable,
 
diff --git a/web/src/components/FileSystem/index.vue b/web/src/components/FileSystem/index.vue
index ff6c42b..a4cbbee 100644
--- a/web/src/components/FileSystem/index.vue
+++ b/web/src/components/FileSystem/index.vue
@@ -2,6 +2,7 @@
   <div class="file-system-container">
     <!-- 顶部工具栏 -->
     <Toolbar
+      ref="toolbarRef"
       :config="toolbarConfig"
       @update:file-path="handleFilePathUpdate"
       @update:show-sidebar="handleSidebarToggle"
@@ -10,6 +11,7 @@
       @go-to-path="handleGoToPath"
       @open-file="handleOpenFile"
       @navigate-to-zip-directory="handleNavigateToZipDirectory"
+      @update:search-keyword="handleSearchKeywordUpdate"
       @show-message="handleShowMessage"
     />
 
@@ -152,6 +154,7 @@ const isEditableWithPreview = (filename: string): boolean => {
 const fileList = ref<FileItem[]>([])
 const fileLoading = ref(false)
 const selectedFileItem = ref<FileItem | null>(null)
+const toolbarRef = ref<InstanceType<typeof import('./components/Toolbar.vue').default> | null>(null)
 
 // 排序状态（带 localStorage 持久化）
 const SORT_STORAGE_KEY = STORAGE_KEYS.FILESYSTEM.SORT
@@ -187,6 +190,18 @@ const editingFileName = ref('')
 // 侧边栏
 const showSidebar = ref(true)
 
+// 搜索
+const searchKeyword = ref('')
+
+// 过滤后的文件列表（基于搜索关键词）
+const filteredFileList = computed(() => {
+  const keyword = searchKeyword.value.trim().toLowerCase()
+  if (!keyword) return fileList.value
+  return fileList.value.filter(item =>
+    item.name.toLowerCase().includes(keyword)
+  )
+})
+
 // 面板宽度（带 localStorage 持久化）
 const restorePanelWidth = (): { left: number; right: number } => {
   try {
@@ -271,7 +286,7 @@ const { previewUrl, updatePreviewUrl, imageLoading, currentImageDimensions, dete
   })
 
 // 文件编辑
-const { fileContent, originalContent, isEditMode, fileContentHeight, contentChanged, canSaveFile, canResetContent, loadFile, saveFile, resetContent, clearContent, toggleEditMode, updateContent, setEditorHeight, isBinaryFile: isBinaryFileRef, fileVersion } =
+const { fileContent, originalContent, isEditMode, fileContentHeight, contentChanged, canSaveFile, canResetContent, loadFile, saveFile, resetContent, clearContent, updateFilePath, toggleEditMode, updateContent, setEditorHeight, isBinaryFile: isBinaryFileRef, fileVersion } =
   useFileEdit({
     currentFilePath: selectedFileItem,
     currentDirectory: filePath
@@ -295,7 +310,8 @@ const toolbarConfig = computed(() => ({
   fileLoading: fileLoading.value,
   showSidebar: showSidebar.value,
   sortBy: sortBy.value,
-  sortOrder: sortOrder.value
+  sortOrder: sortOrder.value,
+  searchKeyword: searchKeyword.value
 }))
 
 // 侧边栏配置
@@ -307,7 +323,7 @@ const sidebarConfig = computed(() => ({
 
 // 文件列表面板配置
 const fileListPanelConfig = computed(() => ({
-  fileList: fileList.value,
+  fileList: filteredFileList.value,
   fileLoading: fileLoading.value,
   selectedFileItem: selectedFileItem.value,
   editingFilePath: editingFilePath.value,
@@ -363,7 +379,8 @@ const fileEditorPanelConfig = computed(() => {
     imageLoading: imageLoading.value,
     currentImageDimensions: currentImageDimensions.value,
     currentFileExtension,
-    isBinaryFile: isBinaryFileRef.value
+    isBinaryFile: isBinaryFileRef.value,
+    fileMtime: selectedFileItem.value?.modified_time || ''
   }
 })
 
@@ -382,6 +399,10 @@ const handleRefresh = async () => {
   await loadDirectory(filePath.value)
 }
 
+const handleSearchKeywordUpdate = (keyword: string) => {
+  searchKeyword.value = keyword
+}
+
 const handleGoToPath = async (path: string) => {
   await navigate(path)
 }
@@ -619,24 +640,12 @@ const handleSaveEditing = async (oldPath: string, newName: string) => {
   }
 
   try {
-    // 如果重命名的是当前打开的文件，先关闭编辑器和预览
-    if (selectedFileItem.value?.path === oldPath) {
-      // 如果是文件（不是文件夹），才需要关闭编辑器
-      if (!selectedFileItem.value.isDir) {
-        // 清空编辑器内容
-        await clearContent()
+    // 标记是否需要重命名后仅更新路径（内容不变，零闪烁）
+    let needUpdatePath = false
 
-        // 清空预览URL
-        if (previewUrl.value) {
-          previewUrl.value = ''
-        }
-      }
-
-      // 取消选中状态
-      selectedFileItem.value = null
-
-      // 等待文件句柄释放（文件需要更长时间）
-      await new Promise(resolve => setTimeout(resolve, 300))
+    // 如果重命名的是当前打开的文件
+    if (selectedFileItem.value?.path === oldPath && !selectedFileItem.value.isDir) {
+      needUpdatePath = true
     }
 
     const renamedFile = await fileOps.rename(oldPath, trimmedName)
@@ -650,6 +659,13 @@ const handleSaveEditing = async (oldPath: string, newName: string) => {
     }
 
     Message.success(`✓ 重命名成功: ${trimmedName}`)
+
+    // 仅更新路径关联，不重新加载内容（编辑器内容不变，零闪烁）
+    if (needUpdatePath && !renamedFile.isDir) {
+      selectedFileItem.value = renamedFile
+      updateFilePath(newPath)
+      updatePreviewUrl(newPath)
+    }
   } catch (error: any) {
     // 提取错误信息
     let errorMsg = error?.message || error?.toString() || '未知错误'
@@ -1237,15 +1253,26 @@ const handleKeyDown = async (event: KeyboardEvent) => {
     return
   }
 
-  // F5 刷新文件列表
+  // F5 刷新文件列表 + 重载当前预览文件
   if (event.key === 'F5') {
     event.preventDefault()
     if (filePath.value) {
-      loadDirectory(filePath.value)
+      await loadDirectory(filePath.value)
+      // 如果有正在预览的文件，同时重新加载其内容（类似重新点击一次）
+      if (selectedFileItem.value && !selectedFileItem.value.isDir) {
+        await loadFileContent(selectedFileItem.value.path)
+      }
     }
     return
   }
 
+  // Ctrl+H 打开历史记录面板
+  if ((event.ctrlKey || event.metaKey) && event.key === 'h') {
+    event.preventDefault()
+    toolbarRef.value?.toggleHistoryDropdown?.()
+    return
+  }
+
   // Ctrl+Shift+C/D/E/F/G/H 快速打开对应盘符
   if ((event.ctrlKey || event.metaKey) && event.shiftKey) {
     const driveLetter = event.key.toUpperCase()
diff --git a/web/src/components/UpdateNotification.vue b/web/src/components/UpdateNotification.vue
index 516b5de..c66eb73 100644
--- a/web/src/components/UpdateNotification.vue
+++ b/web/src/components/UpdateNotification.vue
@@ -6,6 +6,8 @@
 import { computed, watch, onMounted, onUnmounted, h, nextTick } from 'vue'
 import { Modal, Message, Progress } from '@arco-design/web-vue'
 import { useUpdateStore } from '../stores/update'
+import { marked } from '../utils/markedExtensions'
+import { sanitizeHtml } from '@/utils/fileUtils'
 
 const props = defineProps({
   modelValue: {
@@ -66,8 +68,8 @@ const showUpdateModal = () => {
     title: forceUpdate.value ? '重要更新' : '发现新版本',
     content: () => {
       const elements = [
-        h('div', { style: { marginBottom: '12px' } }, [
-          h('span', { style: { fontSize: '14px', color: 'var(--color-text-2)' } }, '版本：'),
+        h('div', { style: { marginBottom: '8px' } }, [
+          h('span', { style: { fontSize: '13px', color: 'var(--color-text-2)' } }, '版本：'),
           h('span', { style: { fontSize: '14px', color: 'var(--color-text-1)', marginLeft: '8px' } }, currentVersion.value),
           h('span', { style: { fontSize: '14px', color: 'var(--color-text-2)', marginLeft: '12px', marginRight: '12px' } }, '→'),
           h('span', { style: { fontSize: '16px', color: 'rgb(var(--primary-6))', fontWeight: '500' } }, latestVersion.value)
@@ -76,20 +78,23 @@ const showUpdateModal = () => {
 
       // 更新日志
       if (changelog.value) {
+        const changelogHtml = (() => { try { return sanitizeHtml(String(marked.parse(changelog.value))) } catch { return changelog.value } })()
         elements.push(
-          h('div', { style: { marginBottom: '12px' } }, [
-            h('div', { style: { fontSize: '13px', color: 'var(--color-text-2)', marginBottom: '8px' } }, '更新内容：'),
+          h('div', { style: { marginBottom: '8px' } }, [
+            h('div', { style: { fontSize: '12px', color: 'var(--color-text-2)', marginBottom: '4px' } }, '更新内容：'),
             h('div', {
               style: {
-                fontSize: '13px',
+                fontSize: '12px',
                 color: 'var(--color-text-2)',
-                lineHeight: '1.8',
-                padding: '12px',
+                lineHeight: '1.6',
+                padding: '10px 12px',
                 background: 'var(--color-fill-1)',
                 borderRadius: '4px',
-                whiteSpace: 'pre-wrap'
-              }
-            }, changelog.value)
+                maxHeight: '240px',
+                overflowY: 'auto'
+              },
+              innerHTML: changelogHtml
+            })
           ])
         )
       }
@@ -104,7 +109,7 @@ const showUpdateModal = () => {
       }
       if (metadata.length > 0) {
         elements.push(
-          h('div', { style: { marginBottom: '12px', fontSize: '13px', color: 'var(--color-text-3)' } }, metadata.join(' · '))
+          h('div', { style: { marginBottom: '4px', fontSize: '12px', color: 'var(--color-text-3)' } }, metadata.join(' · '))
         )
       }
 
diff --git a/web/src/components/UpdatePanel.vue b/web/src/components/UpdatePanel.vue
index 2d45d16..7d120d5 100644
--- a/web/src/components/UpdatePanel.vue
+++ b/web/src/components/UpdatePanel.vue
@@ -30,7 +30,7 @@
           <div class="changelog-title">
             {{ updateInfo.has_update ? '最新版本更新内容' : '当前版本更新内容' }}
           </div>
-          <div class="changelog">{{ updateInfo.changelog }}</div>
+          <div class="changelog" v-html="renderChangelog(updateInfo.changelog)" />
         </div>
       </a-card>
 
@@ -92,8 +92,8 @@
             :status="downloadStatus"
           />
           <div class="progress-info">
-            <span>{{ formatFileSize(progressInfo.downloaded) }} / {{ formatFileSize(progressInfo.total) }}</span>
-            <span v-if="progressInfo.speed > 0">{{ formatSpeed(progressInfo.speed) }}</span>
+            <span>{{ updateStore.formatFileSize(progressInfo.downloaded) }} / {{ updateStore.formatFileSize(progressInfo.total) }}</span>
+            <span v-if="progressInfo.speed > 0">{{ updateStore.formatSpeed(progressInfo.speed) }}</span>
           </div>
         </div>
 
@@ -118,6 +118,8 @@ import { Message, Modal } from '@arco-design/web-vue'
 import { storeToRefs } from 'pinia'
 import { IconHistory } from '@arco-design/web-vue/es/icon'
 import { useUpdateStore } from '../stores/update'
+import { marked } from '../utils/markedExtensions'
+import { sanitizeHtml } from '@/utils/fileUtils'
 
 // Emits
 defineEmits(['open-version-history'])
@@ -134,13 +136,10 @@ const lastCheckTime = ref('-')
 const installResult = ref(null)
 const downloadedFile = ref(null)
 
-// 工具函数
-const formatFileSize = (bytes) => {
-  return updateStore.formatFileSize(bytes)
-}
-
-const formatSpeed = (bytesPerSecond) => {
-  return updateStore.formatSpeed(bytesPerSecond)
+/** 渲染 changelog（Markdown → HTML） */
+function renderChangelog(text: string): string {
+  if (!text) return ''
+  try { return sanitizeHtml(marked.parse(text) as string) } catch { return text }
 }
 
 // 加载当前版本
@@ -283,29 +282,70 @@ onUnmounted(() => {
 }
 
 .changelog-section {
-  margin-top: 16px;
+  margin-top: 12px;
 }
 
 .changelog-title {
-  font-size: 14px;
+  font-size: 13px;
   font-weight: 500;
-  color: var(--color-text-1);
-  margin-bottom: 8px;
+  color: var(--color-text-2);
+  margin-bottom: 6px;
 }
 
 .changelog {
-  background: var(--color-fill-2);
-  padding: 12px;
+  background: var(--color-fill-1);
+  padding: 10px 12px;
   border-radius: 4px;
-  white-space: pre-wrap;
-  margin: 8px 0;
-  max-height: 200px;
+  margin: 0;
+  max-height: 280px;
   overflow-y: auto;
-  font-size: 13px;
-  line-height: 1.6;
+  font-size: 12px;
+  line-height: 1.65;
   color: var(--color-text-2);
 }
 
+.changelog :deep(h4) {
+  font-size: 12px;
+  font-weight: 600;
+  color: var(--color-text-1);
+  margin: 8px 0 3px;
+}
+
+.changelog :deep(h4:first-child) {
+  margin-top: 0;
+}
+
+.changelog :deep(ul) {
+  list-style: none;
+  padding: 0;
+  margin: 1px 0;
+}
+
+.changelog :deep(li) {
+  position: relative;
+  padding-left: 14px;
+  margin: 1px 0;
+}
+
+.changelog :deep(li::before) {
+  content: '·';
+  position: absolute;
+  left: 4px;
+  color: var(--color-text-4);
+  font-weight: bold;
+}
+
+.changelog :deep(code) {
+  background: var(--color-fill-3);
+  padding: 0 4px;
+  border-radius: 3px;
+  font-size: 11px;
+}
+
+.changelog :deep(p) {
+  margin: 2px 0;
+}
+
 .download-progress {
   margin-top: 16px;
   padding: 16px;
diff --git a/web/src/stores/config.ts b/web/src/stores/config.ts
index 4150ee6..e051fec 100644
--- a/web/src/stores/config.ts
+++ b/web/src/stores/config.ts
@@ -15,7 +15,7 @@ interface TabConfig {
 /**
  * 应用配置类型
  */
-interface AppConfig {
+export interface AppConfig {
   tabs: TabConfig[]
   visibleTabs: string[]
   defaultTab: string
diff --git a/web/src/types/file-system.ts b/web/src/types/file-system.ts
index f743d24..7d6b219 100644
--- a/web/src/types/file-system.ts
+++ b/web/src/types/file-system.ts
@@ -115,6 +115,8 @@ export interface ToolbarConfig {
   sortBy: string
   /** 排序方向 */
   sortOrder: string
+  /** 搜索关键词 */
+  searchKeyword: string
 }
 
 /**
@@ -199,6 +201,8 @@ export interface FileEditorPanelConfig {
   currentFileExtension: string
   /** 是否为二进制文件 */
   isBinaryFile: boolean
+  /** 文件修改时间（用于检测外部变更） */
+  fileMtime: string
 }
 
 /**
diff --git a/web/src/utils/codemirrorExports.js b/web/src/utils/codemirrorExports.js
index 3b648b6..802eb13 100644
--- a/web/src/utils/codemirrorExports.js
+++ b/web/src/utils/codemirrorExports.js
@@ -10,4 +10,7 @@ export { defaultKeymap, history, historyKeymap } from '@codemirror/commands'
 export { bracketMatching, defaultHighlightStyle, syntaxHighlighting } from '@codemirror/language'
 export { oneDark } from '@codemirror/theme-one-dark'
 
+// 查找替换
+export { openSearchPanel, closeSearchPanel, search, searchKeymap, SearchQuery } from '@codemirror/search'
+
 // 语言包通过 codeMirrorLoader 动态导入，避免全量打包
diff --git a/web/src/utils/fileUtils.js b/web/src/utils/fileUtils.js
index 3ef5484..8fb65d4 100644
--- a/web/src/utils/fileUtils.js
+++ b/web/src/utils/fileUtils.js
@@ -38,6 +38,21 @@ export const escapeHtml = (str) => {
     .replace(/'/g, '&#039;')
 }
 
+/**
+ * 轻量 HTML 消毒（用于渲染远程 Markdown 等不可信 HTML 片段）
+ * 移除 script/iframe/object/embed 标签和 on* 事件属性
+ */
+export const sanitizeHtml = (html) => {
+  if (!html) return ''
+  return String(html)
+    .replace(/<script\b[^<]*(?:<\/script>|$)/gi, '')
+    .replace(/<iframe\b[^<]*(?:<\/iframe>|$)/gi, '')
+    .replace(/<object\b[^<]*(?:<\/object>|$)/gi, '')
+    .replace(/<embed\b[^>]*\/?>/gi, '')
+    .replace(/\s+on\w+\s*=\s*["'][^"']*["']/gi, '')
+    .replace(/\s+on\w+\s*=\s*[^\s>]*/gi, '')
+}
+
 /**
  * 获取文件扩展名（路径安全）
  * @param {string} path - 文件路径