From d17c20c579be35dcebd5b846c4ade5d791227f6d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=BB=9D=E5=B0=98?= <237809796@qq.com>
Date: Sat, 16 May 2026 17:55:59 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D:=20OSS=E6=94=B6=E8=97=8F?=
 =?UTF-8?q?=E6=89=93=E5=BC=80+=E8=BF=9E=E6=8E=A5=E6=8C=87=E7=A4=BA?=
 =?UTF-8?q?=E5=99=A8=E6=A0=B9=E7=9B=AE=E5=BD=95+=E5=AD=97=E6=AE=B5?=
 =?UTF-8?q?=E6=98=A0=E5=B0=84+=E4=BE=A7=E8=BE=B9=E6=A0=8F=E9=87=8D?=
 =?UTF-8?q?=E6=9E=84+=E6=96=87=E4=BB=B6=E7=9B=91=E5=90=AC+=E9=A6=96?=
 =?UTF-8?q?=E5=B1=8F=E4=BC=98=E5=8C=96?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 app.go                                        |  57 +--
 build/windows/Taskfile.yml                    |   2 +-
 build/windows/info.json                       |  12 +-
 cmd/dbread/main.go                            |  53 +++
 devtools.go                                   |  16 +
 devtools_prod.go                              |   7 +
 docs/代码改进清单.md                          |  23 ++
 frontend/bindings/u-desk/app.ts               |  14 +
 frontend/src/App.vue                          |   3 +
 frontend/src/api/connection-manager.ts        |  45 +-
 frontend/src/api/system.ts                    |  17 +
 frontend/src/assets/logo.png                  | Bin 0 -> 36195 bytes
 .../components/ConnectionIndicator.vue        |  32 +-
 .../FileSystem/components/FileEditorPanel.vue |  49 ++-
 .../FileSystem/components/PathBreadcrumb.vue  |  37 +-
 .../FileSystem/components/Sidebar.vue         | 289 +++++++------
 .../FileSystem/components/Toolbar.vue         |   6 +-
 frontend/src/components/FileSystem/index.vue  | 178 +++++---
 frontend/src/components/MarkdownPreview.vue   |  22 +-
 .../src/components/UpdateNotification.vue     |   4 +-
 frontend/src/components/UpdatePanel.vue       |   4 +-
 frontend/src/utils/markedExtensions.ts        | 347 ++++++++--------
 frontend/src/utils/resize.ts                  |  58 +--
 .../src/wailsjs/v3-bindings/u-desk/app.ts     | 387 ++++++++++++++++--
 .../src/wailsjs/v3-bindings/u-desk/index.ts   |   7 +
 .../src/wailsjs/v3-bindings/u-desk/models.ts  | 286 +++++++++++++
 frontend/src/wailsjs/wailsjs/go/main/App.d.ts |  98 -----
 frontend/src/wailsjs/wailsjs/go/main/App.js   | 191 ---------
 frontend/src/wailsjs/wailsjs/go/models.ts     | 137 -------
 .../src/wailsjs/wailsjs/runtime/package.json  |  24 --
 .../src/wailsjs/wailsjs/runtime/runtime.d.ts  | 330 ---------------
 .../src/wailsjs/wailsjs/runtime/runtime.js    | 298 --------------
 go.mod                                        |   1 +
 go.sum                                        |   2 +
 internal/filesystem/service.go                |  24 ++
 internal/filewatch/watcher.go                 | 138 +++++++
 main.go                                       |  35 +-
 37 files changed, 1667 insertions(+), 1566 deletions(-)
 create mode 100644 cmd/dbread/main.go
 create mode 100644 devtools.go
 create mode 100644 devtools_prod.go
 create mode 100644 docs/代码改进清单.md
 create mode 100644 frontend/src/assets/logo.png
 delete mode 100644 frontend/src/wailsjs/wailsjs/go/main/App.d.ts
 delete mode 100644 frontend/src/wailsjs/wailsjs/go/main/App.js
 delete mode 100644 frontend/src/wailsjs/wailsjs/go/models.ts
 delete mode 100644 frontend/src/wailsjs/wailsjs/runtime/package.json
 delete mode 100644 frontend/src/wailsjs/wailsjs/runtime/runtime.d.ts
 delete mode 100644 frontend/src/wailsjs/wailsjs/runtime/runtime.js
 create mode 100644 internal/filewatch/watcher.go

diff --git a/app.go b/app.go
index f307971..005eea1 100644
--- a/app.go
+++ b/app.go
@@ -5,6 +5,7 @@ package main
 
 import (
 	"context"
+	"encoding/json"
 	"fmt"
 	"os"
 	"path/filepath"
@@ -16,6 +17,7 @@ import (
 
 	"u-desk/internal/api"
 	"u-desk/internal/common"
+	"u-desk/internal/filewatch"
 	"u-desk/internal/filesystem"
 	"u-desk/internal/hotkey"
 	osssvc "u-desk/internal/ossdrv"
@@ -44,6 +46,7 @@ type App struct {
 	sftpService      *sftp.Service
 	ossService       *osssvc.Service
 	profileSvc       *service.ProfileService
+	fileWatcher      *filewatch.Watcher
 	isAlwaysOnTop    bool
 	mu               sync.Mutex
 	unregisterHotkey func()
@@ -61,6 +64,11 @@ func NewApp() *App {
 // SetMainWindow 设置主窗口引用（由 main.go 在创建窗口后调用）
 func (a *App) SetMainWindow(w *application.WebviewWindow) {
 	a.mainWindow = w
+	a.fileWatcher = filewatch.NewWatcher(func(name string, data ...any) {
+		if a.mainWindow != nil {
+			a.mainWindow.EmitEvent(name, data...)
+		}
+	})
 }
 
 // RegisterGlobalHotkey 注册 Ctrl+Shift+B 全局热键（需在窗口创建后调用）
@@ -69,11 +77,10 @@ func (a *App) RegisterGlobalHotkey() {
 		return
 	}
 	a.mu.Lock()
+	defer a.mu.Unlock()
 	if a.unregisterHotkey != nil {
-		a.mu.Unlock()
 		return
 	}
-	a.mu.Unlock()
 	hwnd := uintptr(a.mainWindow.NativeWindow())
 	if hwnd == 0 {
 		fmt.Println("[全局热键] HWND 为 0，注册跳过")
@@ -85,9 +92,7 @@ func (a *App) RegisterGlobalHotkey() {
 		return
 	}
 	fmt.Println("[全局热键] Ctrl+Shift+B 已注册")
-	a.mu.Lock()
 	a.unregisterHotkey = func() { hotkey.Unregister(hwnd, id) }
-	a.mu.Unlock()
 }
 
 // HandleHotkey 处理全局热键回调：切换 BgmBar 显示/隐藏
@@ -102,6 +107,9 @@ func (a *App) HandleHotkey() {
 func (a *App) ServiceStartup(ctx context.Context, _ application.ServiceOptions) error {
 	a.ctx = ctx
 
+	// dev 模式打开 DevTools
+	openDevTools(a.mainWindow)
+
 	// 1. 核心初始化：SQLite（必须同步，很快）
 	if _, err := storage.InitFast(); err != nil {
 		return fmt.Errorf("SQLite 初始化失败，应用无法启动: %w", err)
@@ -310,6 +318,21 @@ func (a *App) ReadFile(path string) (string, error) {
 	return a.filesystem.ReadFile(path)
 }
 
+// WatchFile 开始监听指定文件的变化，变化时发送 file-changed 事件
+func (a *App) WatchFile(path string) error {
+	if a.fileWatcher == nil {
+		return fmt.Errorf("文件监听器未初始化")
+	}
+	return a.fileWatcher.WatchFile(path)
+}
+
+// UnwatchFile 停止监听文件变化
+func (a *App) UnwatchFile() {
+	if a.fileWatcher != nil {
+		a.fileWatcher.UnwatchFile()
+	}
+}
+
 // WriteFileRequest 写入文件请求结构体
 type WriteFileRequest struct {
 	Path    string `json:"path"`
@@ -435,6 +458,7 @@ func (a *App) ResolveShortcut(lnkPath string) (map[string]interface{}, error) {
 	}, nil
 }
 
+
 // getWindowsSpecialFolder 从注册表读取 Windows 特殊文件夹的真实路径
 func getWindowsSpecialFolder(guid string, fallbackName string) string {
 	key, err := registry.OpenKey(registry.CURRENT_USER,
@@ -1194,28 +1218,9 @@ func (a *App) LoadConnectionProfiles() ([]map[string]interface{}, error) {
 	if err != nil {
 		return nil, err
 	}
-	result := make([]map[string]interface{}, len(list))
-	for i, p := range list {
-		result[i] = map[string]interface{}{
-			"id":            float64(p.ID),
-			"name":          p.Name,
-			"host":          p.Host,
-			"port":          p.Port,
-			"username":      p.Username,
-			"password":      p.Password,
-			"keyPath":       p.KeyPath,
-			"type":          p.Type,
-			"provider":      p.Provider,
-			"token":         p.Token,
-			"accessKey":     p.AccessKey,
-			"secretKey":     p.SecretKey,
-			"bucket":        p.Bucket,
-			"region":        p.Region,
-			"endpoint":      p.Endpoint,
-			"lastConnected": p.LastConnected,
-			"sortOrder":     float64(p.SortOrder),
-		}
-	}
+	var result []map[string]interface{}
+	data, _ := json.Marshal(list)
+	json.Unmarshal(data, &result)
 	return result, nil
 }
 
diff --git a/build/windows/Taskfile.yml b/build/windows/Taskfile.yml
index 99c603a..d94318b 100644
--- a/build/windows/Taskfile.yml
+++ b/build/windows/Taskfile.yml
@@ -48,7 +48,7 @@ tasks:
       - cmd: rm -f *.syso
         platforms: [linux, darwin]
     vars:
-      BUILD_FLAGS: '{{if eq .DEV "true"}}{{if .EXTRA_TAGS}}-tags {{.EXTRA_TAGS}} {{end}}-buildvcs=false -gcflags=all="-l"{{else}}-tags production,devtools -trimpath -buildvcs=false -ldflags="-w -s -H windowsgui"{{end}}'
+      BUILD_FLAGS: '{{if eq .DEV "true"}}{{if .EXTRA_TAGS}}-tags {{.EXTRA_TAGS}} {{end}}-buildvcs=false -gcflags=all="-l"{{else}}-tags production -trimpath -buildvcs=false -ldflags="-w -s -H windowsgui"{{end}}'
     env:
       GOOS: windows
       CGO_ENABLED: '{{.CGO_ENABLED | default "0"}}'
diff --git a/build/windows/info.json b/build/windows/info.json
index 09b3af3..83a1c0d 100644
--- a/build/windows/info.json
+++ b/build/windows/info.json
@@ -1,15 +1,15 @@
 {
 	"fixed": {
-		"file_version": "0.1.0"
+		"file_version": "0.4.0"
 	},
 	"info": {
 		"0000": {
-			"ProductVersion": "0.1.0",
-			"CompanyName": "My Company",
-			"FileDescription": "A u-desk application",
-			"LegalCopyright": "© 2026, My Company",
+			"ProductVersion": "0.4.0",
+			"CompanyName": "1216.top",
+			"FileDescription": "U-Desk 桌面文件管理器",
+			"LegalCopyright": "© 2026, 1216.top",
 			"ProductName": "U-Desk",
-			"Comments": "This is a comment"
+			"Comments": "桌面文件管理器"
 		}
 	}
 }
\ No newline at end of file
diff --git a/cmd/dbread/main.go b/cmd/dbread/main.go
new file mode 100644
index 0000000..4cdcdda
--- /dev/null
+++ b/cmd/dbread/main.go
@@ -0,0 +1,53 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/glebarez/sqlite"
+	"gorm.io/gorm"
+)
+
+func main() {
+	home, _ := os.UserHomeDir()
+	dbPath := filepath.Join(home, ".u-desk", "app.db")
+
+	db, err := gorm.Open(sqlite.Open(dbPath), &gorm.Config{})
+	if err != nil {
+		fmt.Fprintln(os.Stderr, "open db:", err)
+		os.Exit(1)
+	}
+
+	// 所有列
+	type Profile struct {
+		ID         uint   `gorm:"primaryKey"`
+		Name       string `gorm:"column:name"`
+		Type       string `gorm:"column:type"`
+		Host       string `gorm:"column:host"`
+		Port       int    `gorm:"column:port"`
+		Username   string `gorm:"column:username"`
+		Provider   string `gorm:"column:provider"`
+		Token      string `gorm:"column:token"`
+		AccessKey  string `gorm:"column:access_key"`
+		SecretKey  string `gorm:"column:secret_key"`
+		Bucket     string `gorm:"column:bucket"`
+		Region     string `gorm:"column:region"`
+		Endpoint   string `gorm:"column:endpoint"`
+	}
+
+	var profiles []Profile
+	db.Table("connection_profiles").Find(&profiles)
+
+	// 脱敏 secret_key
+	for i := range profiles {
+		if len(profiles[i].SecretKey) > 8 {
+			profiles[i].SecretKey = profiles[i].SecretKey[:4] + "****"
+		}
+	}
+
+	b, _ := json.MarshalIndent(profiles, "", "  ")
+	fmt.Println("=== Connection Profiles ===")
+	fmt.Println(string(b))
+}
diff --git a/devtools.go b/devtools.go
new file mode 100644
index 0000000..ca8db88
--- /dev/null
+++ b/devtools.go
@@ -0,0 +1,16 @@
+//go:build !production
+
+package main
+
+import (
+	"time"
+
+	"github.com/wailsapp/wails/v3/pkg/application"
+)
+
+func openDevTools(window *application.WebviewWindow) {
+	go func() {
+		time.Sleep(2 * time.Second)
+		window.OpenDevTools()
+	}()
+}
diff --git a/devtools_prod.go b/devtools_prod.go
new file mode 100644
index 0000000..dd588b7
--- /dev/null
+++ b/devtools_prod.go
@@ -0,0 +1,7 @@
+//go:build production
+
+package main
+
+import "github.com/wailsapp/wails/v3/pkg/application"
+
+func openDevTools(window *application.WebviewWindow) {}
diff --git a/docs/代码改进清单.md b/docs/代码改进清单.md
new file mode 100644
index 0000000..12406cb
--- /dev/null
+++ b/docs/代码改进清单.md
@@ -0,0 +1,23 @@
+# 代码改进清单
+
+> 基于 Wails 开发文档 vs 项目现状审查，2026-05-16
+
+## 已完成
+
+- [x] 🔴① `main.go` 添加 `SingleInstance` 单实例锁（`top.1216.udesk`）
+- [x] 🔴② `app.go:74-97` RegisterGlobalHotkey 竞态修复（合并为单一 `defer mu.Unlock()`）
+- [x] 🔴③ `build/windows/info.json` 版本号 0.1.0→0.4.0，公司名→1216.top
+- [x] 🟡⑤ 删除 `frontend/src/wailsjs/wailsjs/` v2 遗留绑定目录
+- [x] 🟡⑥ `LoadConnectionProfiles` 手动 map 转换改用 `json.Marshal/Unmarshal`
+- [x] 🟡⑨ `App.vue` onMounted 添加 `contextmenu` 事件拦截（禁用浏览器默认右键菜单）
+- [x] 🟡⑫ `main.go` Run() 错误输出改用 `fmt.Fprintf(os.Stderr, ...)`
+- [x] Sidebar 设置按钮 `···` 点击无响应修复：移除 `.stop` + Teleport 重构 + 增大点击区域
+
+## 待处理
+
+- [ ] ④ App 结构体拆分 — 1344 行，应拆为 FilesystemService / ProfileService / BgmService / UpdateService 等 v3 Service
+- [ ] ⑦ `internal/api/pdf_api.go:371` SelectDirectory 改用 Wails 原生对话框 `application.Get().Dialog.OpenFile()`
+- [ ] ⑧ `app.go:176-189` HWND 轮询改事件驱动 — v3 alpha 暂无对应 API，后续跟进
+- [ ] ⑩ `app.go:29` Windows 专用导入 `golang.org/x/sys/windows/registry` 加构建标签拆到 `*_windows.go`
+- [ ] ⑪ 全局结构化日志 — `fmt.Println` 替换为 `log/slog`，按优先级分批替换
+- [ ] ⑬ `app.go:158` 更新检查 URL `https://c.1216.top/last-version.json` 移入配置
diff --git a/frontend/bindings/u-desk/app.ts b/frontend/bindings/u-desk/app.ts
index f0189eb..edbdcd5 100644
--- a/frontend/bindings/u-desk/app.ts
+++ b/frontend/bindings/u-desk/app.ts
@@ -674,6 +674,13 @@ export function SftpWriteFile(req: $models.SftpWriteFileRequest): $CancellablePr
     return $Call.ByID(2401472593, req);
 }
 
+/**
+ * UnwatchFile 停止监听文件变化
+ */
+export function UnwatchFile(): $CancellablePromise<void> {
+    return $Call.ByID(3006906623);
+}
+
 /**
  * VerifyUpdateFile 验证更新文件哈希值
  */
@@ -683,6 +690,13 @@ export function VerifyUpdateFile(filePath: string, expectedHash: string, hashTyp
     });
 }
 
+/**
+ * WatchFile 开始监听指定文件的变化，变化时发送 file-changed 事件
+ */
+export function WatchFile(path: string): $CancellablePromise<void> {
+    return $Call.ByID(325055910, path);
+}
+
 /**
  * WindowClose 关闭窗口
  */
diff --git a/frontend/src/App.vue b/frontend/src/App.vue
index b32aad0..2061310 100644
--- a/frontend/src/App.vue
+++ b/frontend/src/App.vue
@@ -176,6 +176,9 @@ onMounted(() => {
   // 禁止 Ctrl+滚轮缩放
   document.addEventListener('wheel', preventZoom, { passive: false })
 
+  // 禁用浏览器默认右键菜单（桌面应用体验）
+  document.addEventListener('contextmenu', e => e.preventDefault())
+
   // 延迟检查更新（启动后 3 秒，静默模式）
   setTimeout(() => {
     updateStore.checkForUpdates(true)
diff --git a/frontend/src/api/connection-manager.ts b/frontend/src/api/connection-manager.ts
index cdf4da9..584ad64 100644
--- a/frontend/src/api/connection-manager.ts
+++ b/frontend/src/api/connection-manager.ts
@@ -91,11 +91,14 @@ class ConnectionManagerImpl {
     try {
       const list = await LoadConnectionProfiles()
       if (list && list.length > 0) {
-        this._profiles = list.map((p: any) => ({
-          ...p,
-          id: String(p.id),
-          lastConnected: p.lastConnected || p.last_connected ? new Date(p.lastConnected || p.last_connected).getTime() : undefined,
-        }))
+        this._profiles = list.map((p: any) => {
+          const camel = snakeToCamel(p)
+          return {
+            ...camel,
+            id: String(p.id),
+            lastConnected: camel.lastConnected ? new Date(camel.lastConnected).getTime() : undefined,
+          }
+        })
         const hasLocal = this._profiles.some(p => p.type === 'local')
         if (!hasLocal) {
           this._profiles.unshift({
@@ -105,17 +108,20 @@ class ConnectionManagerImpl {
       }
     } catch { /* 首次使用 */ }
     this.notifyChange()
-    this._profiles.forEach(p => {
-      if (p.type === 'local') { this.fetchSystemInfo(p.id).catch(() => {}) }
-    })
-    const autoConnect = localStorage.getItem('desk:autoConnect')
-    if (autoConnect !== 'false') {
-      for (const p of this._profiles) {
-        if (p.type !== 'local') {
-          this.buildAndPool(String(p.id), p).catch(() => {})
+    // 延迟执行系统信息采集和自动连接，不阻塞首屏渲染
+    setTimeout(() => {
+      this._profiles.forEach(p => {
+        if (p.type === 'local') { this.fetchSystemInfo(p.id).catch(() => {}) }
+      })
+      const autoConnect = localStorage.getItem('desk:autoConnect')
+      if (autoConnect !== 'false') {
+        for (const p of this._profiles) {
+          if (p.type !== 'local') {
+            this.buildAndPool(String(p.id), p).catch(() => {})
+          }
         }
       }
-    }
+    }, 500)
   }
 
   /** 保存/更新单个 profile 到 SQLite */
@@ -269,9 +275,16 @@ class ConnectionManagerImpl {
       return
     }
 
-    // 新建连接并入池（成功后再设 activeId）
-    await this.buildAndPool(profileId, profile)
+    // 先设 activeId（确保回调读到正确的 activeProfile），失败时回退
+    const prevActiveId = this._activeId
     this._activeId = profileId
+    try {
+      await this.buildAndPool(profileId, profile)
+    } catch (err) {
+      this._activeId = prevActiveId
+      this.notifyChange()
+      throw err
+    }
   }
 
   /** 断开指定 profile 并从池移除 */
diff --git a/frontend/src/api/system.ts b/frontend/src/api/system.ts
index 648e5ec..38933c2 100644
--- a/frontend/src/api/system.ts
+++ b/frontend/src/api/system.ts
@@ -108,3 +108,20 @@ export async function detectFileTypeByContent(path: string) {
 export async function getCommonPaths() {
   return t().getCommonPaths()
 }
+
+// 文件监听（仅本地模式，直接调用 Wails 绑定）
+export async function watchFile(path: string): Promise<void> {
+  if (connectionManager.isRemote()) return
+  try {
+    const { WatchFile } = await import('../wailsjs/v3-bindings/u-desk/app')
+    await WatchFile(path)
+  } catch { /* 忽略绑定未生成的场景 */ }
+}
+
+export async function unwatchFile(): Promise<void> {
+  if (connectionManager.isRemote()) return
+  try {
+    const { UnwatchFile } = await import('../wailsjs/v3-bindings/u-desk/app')
+    await UnwatchFile()
+  } catch { /* 忽略 */ }
+}
diff --git a/frontend/src/assets/logo.png b/frontend/src/assets/logo.png
new file mode 100644
index 0000000000000000000000000000000000000000..3e081d98def6e4e301e2bcda81d7af9d893c6eef
GIT binary patch
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HcmV?d00001

diff --git a/frontend/src/components/FileSystem/components/ConnectionIndicator.vue b/frontend/src/components/FileSystem/components/ConnectionIndicator.vue
index 939087c..5ac8c79 100644
--- a/frontend/src/components/FileSystem/components/ConnectionIndicator.vue
+++ b/frontend/src/components/FileSystem/components/ConnectionIndicator.vue
@@ -75,7 +75,7 @@
 </template>
 
 <script setup lang="ts">
-import { ref, computed, shallowRef, onMounted, onUnmounted, provide, watch } from 'vue'
+import { ref, computed, shallowRef, onMounted, onUnmounted, provide, inject, watch, type Ref } from 'vue'
 import { IconCloud, IconFolder, IconExclamationCircle } from '@arco-design/web-vue/es/icon'
 import { Message } from '@arco-design/web-vue'
 import { connectionManager } from '@/api/connection-manager'
@@ -98,6 +98,15 @@ const emit = defineEmits<{
 
 const { setTimeout: delay, clearTimeout: clearDelay } = useTimeout()
 
+// 下拉互斥：面包屑 vs 连接指示器
+const dropdownOwner = inject<Ref<'connection' | 'breadcrumb' | null>>('dropdownOwner', ref(null))
+watch(dropdownOwner, (owner) => {
+  if (owner === 'breadcrumb') {
+    showDirDropdown.value = false
+    closeAllMenusFn()
+  }
+})
+
 // === 连接菜单（原有逻辑） ===
 const showMenu = ref(false)
 const moreOpenId = ref<string | null>(null)
@@ -144,8 +153,9 @@ const dirHoverTimer = ref<NodeJS.Timeout | null>(null)
 const dirCloseTimer = ref<NodeJS.Timeout | null>(null)
 
 const rootPath = computed(() => {
-  const path = props.filePath?.replace(/\\/g, '/') || ''
-  if (/^[A-Za-z]:/.test(path)) return path.substring(0, 2) + '/'
+  const active = connectionManager.activeProfile
+  if (!active || active.type === 'local') return '/'
+  // 远程连接：根目录始终是 /
   return '/'
 })
 
@@ -159,11 +169,14 @@ const loadRootChildren = async () => {
   try {
     const files = await listDir(path)
     dirLastLoadedPath.value = path
-    dirChildren.value = sortFileList(files.map(f => ({
-      name: f.name,
-      path: f.path,
-      isDir: f.isDir
-    })))
+    // 只保留目录，限制最多200条
+    dirChildren.value = sortFileList(
+      files.filter(f => f.isDir).map(f => ({
+        name: f.name,
+        path: f.path,
+        isDir: f.isDir
+      }))
+    ).slice(0, 200)
   } catch (err) {
     console.error('[ConnectionIndicator] 加载根目录失败:', err)
     dirError.value = '加载失败'
@@ -177,6 +190,7 @@ const onDirHover = () => {
   if (dirCloseTimer.value) clearDelay(dirCloseTimer.value)
 
   dirHoverTimer.value = delay(() => {
+    dropdownOwner.value = 'connection'
     showDirDropdown.value = true
     showMenu.value = false
     closeAllMenusFn()
@@ -293,7 +307,7 @@ watch(() => props.filePath, () => {
   display: inline-flex;
   align-items: center;
   gap: 5px;
-  padding: 2px 10px;
+  padding: 4px 8px;
   border-radius: 4px;
   cursor: pointer;
   font-size: 12px;
diff --git a/frontend/src/components/FileSystem/components/FileEditorPanel.vue b/frontend/src/components/FileSystem/components/FileEditorPanel.vue
index a11012b..3be6043 100644
--- a/frontend/src/components/FileSystem/components/FileEditorPanel.vue
+++ b/frontend/src/components/FileSystem/components/FileEditorPanel.vue
@@ -373,9 +373,18 @@
     </div>
     </template>
 
-    <!-- 多文件预览浮动 Tab 栏 -->
+    <!-- 空状态：无文件预览 -->
+    <div v-if="!config.currentFileName" class="empty-preview">
+      <div class="empty-preview-content">
+        <img src="@/assets/logo.png" alt="U-Desk" class="empty-preview-icon" />
+        <div class="empty-preview-title">U-Desk</div>
+        <div class="empty-preview-subtitle">文件管理器</div>
+      </div>
+    </div>
+
+    <!-- 文件预览浮动 Tab 栏 -->
     <div
-      v-if="previewTabs.length > 1"
+      v-if="previewTabs.length > 0"
       class="preview-tabs"
     >
       <div
@@ -1811,4 +1820,40 @@ body[arco-theme*='dark'] .markdown-preview-content :deep(.hljs-link) {
   background: var(--color-fill-3);
   color: var(--color-text-1);
 }
+
+.empty-preview {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  height: 100%;
+  width: 100%;
+  user-select: none;
+}
+
+.empty-preview-content {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 8px;
+  opacity: 0.3;
+}
+
+.empty-preview-icon {
+  width: 80px;
+  height: 80px;
+  object-fit: contain;
+  opacity: 0.6;
+}
+
+.empty-preview-title {
+  font-size: 24px;
+  font-weight: 600;
+  color: var(--color-text-2);
+  letter-spacing: 2px;
+}
+
+.empty-preview-subtitle {
+  font-size: 13px;
+  color: var(--color-text-3);
+}
 </style>
diff --git a/frontend/src/components/FileSystem/components/PathBreadcrumb.vue b/frontend/src/components/FileSystem/components/PathBreadcrumb.vue
index f43121c..ca3b1d9 100644
--- a/frontend/src/components/FileSystem/components/PathBreadcrumb.vue
+++ b/frontend/src/components/FileSystem/components/PathBreadcrumb.vue
@@ -54,7 +54,7 @@
 </template>
 
 <script setup lang="ts">
-import { ref, computed, watch, provide, type Ref } from 'vue'
+import { ref, computed, watch, provide, inject, type Ref } from 'vue'
 import { IconRight, IconFolder } from '@arco-design/web-vue/es/icon'
 import { listDir } from '@/api/system'
 import { sortFileList } from '@/utils/fileUtils'
@@ -63,6 +63,14 @@ import DropdownItem from './DropdownItem.vue'
 
 const { setTimeout: delay, clearTimeout } = useTimeout()
 
+// 下拉互斥：面包屑 vs 连接指示器
+const dropdownOwner = inject<Ref<'connection' | 'breadcrumb' | null>>('dropdownOwner', ref(null))
+watch(dropdownOwner, (owner) => {
+  if (owner === 'connection') {
+    resetAndClose()
+  }
+})
+
 const openMenus = ref<Map<number, string>>(new Map())
 
 const closeMenu = (level: number) => {
@@ -122,22 +130,31 @@ const closeTimer = ref<NodeJS.Timeout | null>(null)
 const children = ref<Array<{ name: string; path: string; isDir: boolean }>>([])
 const loading = ref(false)
 const error = ref('')
-const lastLoadedPath = ref('')
+
+// 缓存：路径 → 子目录列表（只缓存目录，跨导航保留）
+const dirCache = new Map<string, Array<{ name: string; path: string; isDir: boolean }>>()
 
 const loadChildren = async (path: string) => {
-  if (path === lastLoadedPath.value) return
+  if (dirCache.has(path)) {
+    children.value = dirCache.get(path)!
+    return
+  }
 
   loading.value = true
   error.value = ''
 
   try {
     const files = await listDir(path)
-    lastLoadedPath.value = path
-    children.value = sortFileList(files.map(f => ({
-      name: f.name,
-      path: f.path,
-      isDir: f.isDir
-    })))
+    // 只保留目录（面包屑只用于导航），限制最多200条
+    const dirs = sortFileList(
+      files.filter(f => f.isDir).map(f => ({
+        name: f.name,
+        path: f.path,
+        isDir: f.isDir
+      }))
+    ).slice(0, 200)
+    dirCache.set(path, dirs)
+    children.value = dirs
   } catch (err) {
     console.error('[Breadcrumb] 加载子目录失败:', err)
     error.value = '加载失败'
@@ -159,6 +176,7 @@ const onHover = (segment: PathSegment, index: number) => {
   if (closeTimer.value) clearTimeout(closeTimer.value)
 
   hoverTimer.value = delay(() => {
+    dropdownOwner.value = 'breadcrumb'
     activeIndex.value = index
     loadChildren(segment.path)
   }, 200)
@@ -194,7 +212,6 @@ const onOpenFile = (path: string) => {
 watch(() => props.path, () => {
   activeIndex.value = null
   children.value = []
-  lastLoadedPath.value = ''
   openMenus.value = new Map()
 })
 </script>
diff --git a/frontend/src/components/FileSystem/components/Sidebar.vue b/frontend/src/components/FileSystem/components/Sidebar.vue
index 2adffb4..bf3d1f2 100644
--- a/frontend/src/components/FileSystem/components/Sidebar.vue
+++ b/frontend/src/components/FileSystem/components/Sidebar.vue
@@ -3,7 +3,7 @@
     <div v-show="config.visible" class="sidebar">
       <template v-for="section in sectionOrder" :key="section">
       <!-- 服务器区块 -->
-      <div v-if="section === 'server' && showServer" class="sidebar-section" :class="{ 'section-on-top': settingsOpen || moreOpenId }">
+      <div v-if="section === 'server' && showServer" class="sidebar-section">
         <div class="section-header" @click="serverCollapsed = !serverCollapsed">
           <span class="section-title">🖥️ 服务器</span>
           <icon-down v-if="!serverCollapsed" class="section-toggle" />
@@ -17,7 +17,7 @@
             <span class="col-metric">磁盘</span>
             <span class="col-metric">CPU</span>
             <span class="col-metric">内存</span>
-            <span class="col-action settings-btn" @click.stop="settingsOpen = !settingsOpen" title="管理">···</span>
+            <span class="col-action settings-btn" @click="toggleSettings($event)" title="管理">···</span>
           </div>
           <!-- 表格行 -->
           <div
@@ -35,46 +35,17 @@
               v-if="p.type !== 'local'"
               class="col-action more-btn"
               title="更多操作"
-              @click.stop="toggleMore(p.id)"
+              @click.stop="toggleMore(p, $event)"
             >···</span>
             <span v-else class="col-action"></span>
-            <!-- 更多操作子菜单 -->
-            <div v-if="moreOpenId === p.id" class="more-menu" @click.stop>
-              <div class="more-item" @click="handleEdit(p)">编辑</div>
-              <div class="more-item danger" @click="handleDelete(p)">删除</div>
-            </div>
           </div>
 
         </div>
         </div>
-        <div v-if="settingsOpen" class="settings-panel" @click.stop>
-          <div class="settings-item" @click="$emit('openConnectionDialog'); settingsOpen = false">
-            <icon-plus /> 添加服务器
-          </div>
-          <div class="settings-item" @click="toggleAutoConnect">
-            <icon-check-circle :style="{ opacity: autoConnect ? 1 : 0.3 }" />
-            启动时自动连接所有服务器
-          </div>
-          <div class="settings-item" @click="toggleAutoRefresh">
-            <icon-check-circle :style="{ opacity: autoRefresh ? 1 : 0.3 }" />
-            自动刷新系统信息 (15s)
-          </div>
-          <div class="settings-divider" />
-          <div class="settings-label">显示服务器</div>
-          <div
-            v-for="p in profiles"
-            :key="'vis-' + p.id"
-            class="settings-item"
-            @click="toggleServerVisibility(p.id)"
-          >
-            <icon-check-circle :style="{ opacity: !hiddenServerIds.includes(String(p.id)) ? 1 : 0.3 }" />
-            {{ p.name }}
-          </div>
-        </div>
       </div>
 
       <!-- 收藏夹区块 -->
-      <div v-if="section === 'favorites' && showFavorites" class="sidebar-section fav-section">
+      <div v-if="section === 'favorites' && showFavorites" class="sidebar-section fav-section" :class="{ 'fav-collapsed': favCollapsed }">
         <div class="section-header" @click="favCollapsed = !favCollapsed">
           <span class="section-title">⭐ 收藏夹</span>
           <span class="section-count">共{{ config.favoriteFiles.length }}项</span>
@@ -159,6 +130,38 @@
       </template>
     </div>
   </transition>
+
+  <!-- 更多操作子菜单 — Teleport 到 body -->
+  <Teleport to="body">
+    <div v-if="moreOpenId" class="sidebar-popup more-menu" :style="moreMenuStyle" @click.stop>
+      <div class="more-item" @click="handleEdit(moreProfile!)">编辑</div>
+      <div class="more-item danger" @click="handleDelete(moreProfile!)">删除</div>
+    </div>
+    <div v-if="settingsOpen" class="sidebar-popup settings-panel" :style="settingsPanelStyle" @click.stop>
+      <div class="settings-item" @click="$emit('openConnectionDialog'); settingsOpen = false">
+        <icon-plus /> 添加服务器
+      </div>
+      <div class="settings-item" @click="toggleAutoConnect">
+        <icon-check-circle :style="{ opacity: autoConnect ? 1 : 0.3 }" />
+        启动时自动连接所有服务器
+      </div>
+      <div class="settings-item" @click="toggleAutoRefresh">
+        <icon-check-circle :style="{ opacity: autoRefresh ? 1 : 0.3 }" />
+        自动刷新系统信息 (15s)
+      </div>
+      <div class="settings-divider" />
+      <div class="settings-label">显示服务器</div>
+      <div
+        v-for="p in profiles"
+        :key="'vis-' + p.id"
+        class="settings-item"
+        @click="toggleServerVisibility(p.id)"
+      >
+        <icon-check-circle :style="{ opacity: !hiddenServerIds.includes(String(p.id)) ? 1 : 0.3 }" />
+        {{ p.name }}
+      </div>
+    </div>
+  </Teleport>
 </template>
 
 <script setup lang="ts">
@@ -182,8 +185,8 @@ const props = defineProps<Props>()
 
 // 折叠状态（组件内部，不污染父组件）
 const serverCollapsed = ref(false)
-const favCollapsed = ref(false)
-const helpCollapsed = ref(false)
+const favCollapsed = ref(true)
+const helpCollapsed = ref(true)
 
 // 侧边栏区块可见性（从配置读取）
 const showServer = computed(() => configStore.appConfig.sidebarSections?.includes('server') ?? true)
@@ -192,13 +195,55 @@ const showHelp = computed(() => configStore.appConfig.sidebarSections?.includes(
 // 区块排序
 const sectionOrder = computed(() => configStore.appConfig.sidebarSections || ['server', 'favorites', 'help'])
 
-// 管理设置
+// === 弹出面板定位（Teleport 到 body，fixed 定位） ===
 const settingsOpen = ref(false)
+const settingsPanelStyle = ref<Record<string, string>>({})
+
+const moreOpenId = ref<string | null>(null)
+const moreProfile = ref<{ id: string; name: string } | null>(null)
+const moreMenuStyle = ref<Record<string, string>>({})
+
 const autoConnect = ref(localStorage.getItem('desk:autoConnect') !== 'false')
 const autoRefresh = ref(localStorage.getItem('desk:autoRefresh') === 'true')
 const hiddenServerIds = ref<string[]>(JSON.parse(localStorage.getItem('desk:hiddenServers') || '[]'))
 let refreshTimer: ReturnType<typeof setInterval> | null = null
 
+function calcPopupStyle(el: HTMLElement): Record<string, string> {
+  const rect = el.getBoundingClientRect()
+  return {
+    position: 'fixed',
+    top: `${rect.bottom + 2}px`,
+    right: `${window.innerWidth - rect.right}px`,
+  }
+}
+
+function toggleSettings(e: MouseEvent) {
+  if (settingsOpen.value) {
+    settingsOpen.value = false
+    return
+  }
+  moreOpenId.value = null
+  const btn = (e.target as HTMLElement).closest<HTMLElement>('.settings-btn')
+  if (!btn) return
+  settingsPanelStyle.value = calcPopupStyle(btn)
+  settingsOpen.value = true
+}
+
+function toggleMore(p: { id: string; name: string }, e: MouseEvent) {
+  if (moreOpenId.value === p.id) {
+    moreOpenId.value = null
+    moreProfile.value = null
+    return
+  }
+  settingsOpen.value = false
+  moreOpenId.value = p.id
+  moreProfile.value = p
+  const target = (e.target as HTMLElement).closest('.more-btn') as HTMLElement
+  if (target) {
+    moreMenuStyle.value = calcPopupStyle(target)
+  }
+}
+
 function toggleAutoConnect() {
   autoConnect.value = !autoConnect.value
   localStorage.setItem('desk:autoConnect', String(autoConnect.value))
@@ -230,13 +275,14 @@ onMounted(() => {
 })
 onUnmounted(() => stopAutoRefresh())
 
-// 点击外部关闭更多菜单
+// 点击外部关闭弹出面板
 function handleClickOutside(e: MouseEvent) {
   const el = e.target as HTMLElement
-  if (!el.closest('.server-table-row')) {
+  if (!el.closest('.sidebar-popup') && !el.closest('.more-btn')) {
     moreOpenId.value = null
+    moreProfile.value = null
   }
-  if (!el.closest('.settings-panel') && !el.closest('.settings-btn')) {
+  if (!el.closest('.sidebar-popup') && !el.closest('.settings-btn')) {
     settingsOpen.value = false
   }
 }
@@ -246,7 +292,6 @@ onUnmounted(() => document.removeEventListener('click', handleClickOutside))
 // 服务器 Profile 列表状态
 const profiles = shallowRef(connectionManager.profiles)
 const activeId = shallowRef(connectionManager.activeProfile?.id ?? '')
-const moreOpenId = ref<string | null>(null)
 const sysInfoMap = ref<Record<string, SystemInfo>>({})
 
 const visibleProfiles = computed(() =>
@@ -289,6 +334,7 @@ const helpItems = [
   { key: 'Ctrl+B', desc: '切换侧边栏' },
   { key: 'Ctrl+H', desc: '历史记录' },
   { key: 'Ctrl+F', desc: '聚焦搜索' },
+  { key: 'Ctrl+⇧+C~H', desc: '快速定位本机盘符' },
   { key: 'Click ⭐', desc: '收藏文件' },
   { key: 'Drag', desc: '排序收藏' },
 ]
@@ -428,6 +474,7 @@ function stateText(profileId: string): string {
 
 async function handleSelect(p: { id: string; type: string }) {
   moreOpenId.value = null
+  moreProfile.value = null
   if (p.id === activeId.value) return
   try {
     await connectionManager.connect(p.id)
@@ -436,12 +483,9 @@ async function handleSelect(p: { id: string; type: string }) {
   }
 }
 
-function toggleMore(id: string) {
-  moreOpenId.value = moreOpenId.value === id ? null : id
-}
-
 function handleEdit(p: { id: string }) {
   moreOpenId.value = null
+  moreProfile.value = null
   emit('openConnectionDialog', p.id)
 }
 
@@ -449,6 +493,7 @@ function handleDelete(p: { id: string; name: string }) {
   if (!window.confirm(`确定删除「${p.name}」？`)) return
   connectionManager.removeProfile(p.id)
   moreOpenId.value = null
+  moreProfile.value = null
 }
 </script>
 
@@ -476,11 +521,20 @@ function handleDelete(p: { id: string; name: string }) {
   flex-shrink: 0;
 }
 
+/* 服务器区块不需要 max-height 限制 */
+.sidebar-section:first-child > .section-content-wrap {
+  max-height: none;
+}
+
 /* 收藏夹区块弹性填充剩余空间 */
 .fav-section {
-  flex: 1;
+  flex: 1 1 0;
   min-height: 0;
-  overflow: hidden;
+}
+
+/* 收藏夹折叠时收缩为 header 高度 */
+.fav-section.fav-collapsed {
+  flex: 0 0 auto;
 }
 
 /* 收藏夹 section-content-wrap 由 flex 控制高度 */
@@ -501,11 +555,7 @@ function handleDelete(p: { id: string; name: string }) {
   flex-direction: column;
 }
 
-.sidebar-section.section-on-top {
-  z-index: 30;
-}
-
-/* 帮助区块固定在底部，不被推出窗口 */
+/* 帮助区块固定在底部 */
 .sidebar-section:last-child {
   flex-shrink: 0;
 }
@@ -544,15 +594,15 @@ function handleDelete(p: { id: string; name: string }) {
   transition: transform 0.2s;
 }
 
-/* 区块折叠容器 - grid 动画精确匹配内容高度 */
+/* 区块折叠容器 */
 .section-content-wrap {
-  display: grid;
-  grid-template-rows: 1fr;
-  transition: grid-template-rows 0.2s ease;
+  overflow: hidden;
+  max-height: 500px;
+  transition: max-height 0.25s ease;
 }
 
 .section-content-wrap.collapsed {
-  grid-template-rows: 0fr;
+  max-height: 0;
 }
 
 .section-content-wrap > .section-content {
@@ -603,7 +653,6 @@ function handleDelete(p: { id: string; name: string }) {
   background: var(--color-fill-1);
   border-radius: 0 0 6px 6px;
   border-left: 3px solid var(--color-primary-6);
-  overflow: visible;
 }
 
 /* 表头 */
@@ -624,7 +673,6 @@ function handleDelete(p: { id: string; name: string }) {
 
 /* 表格行 */
 .server-table-row {
-  position: relative;
   display: flex;
   align-items: center;
   padding: 4px 4px;
@@ -695,76 +743,19 @@ function handleDelete(p: { id: string; name: string }) {
 }
 .server-table-row:hover .more-btn { opacity: 1; }
 
-/* 更多操作子菜单 */
-.more-menu {
-  position: absolute;
-  right: 4px;
-  top: 100%;
-  min-width: 80px;
-  background: var(--color-bg-popup);
-  border: 1px solid var(--color-border);
-  border-radius: 4px;
-  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
-  z-index: 10;
-  padding: 2px 0;
-}
-.more-item {
-  padding: 5px 12px;
-  font-size: 13px;
-  cursor: pointer;
-  transition: background 0.15s;
-}
-.more-item:hover { background: var(--color-fill-1); }
-.more-item.danger { color: var(--color-danger-6); }
-
 /* 设置按钮 */
 .settings-btn {
   cursor: pointer;
   font-size: 14px;
   color: var(--color-text-3);
-  padding: 0 2px;
+  padding: 3px 4px;
   line-height: 1;
   letter-spacing: 1px;
   transition: color 0.15s;
+  overflow: visible;
 }
 .settings-btn:hover { color: var(--color-primary-6); }
 
-/* 设置面板 — 绝对定位浮在按钮下方 */
-.settings-panel {
-  position: absolute;
-  right: 4px;
-  top: 50px;
-  z-index: 20;
-  min-width: 200px;
-  background: var(--color-bg-popup);
-  border: 1px solid var(--color-border);
-  border-radius: 6px;
-  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
-  padding: 2px 0;
-}
-.settings-item {
-  display: flex;
-  align-items: center;
-  gap: 8px;
-  padding: 7px 12px;
-  font-size: 13px;
-  cursor: pointer;
-  transition: background 0.12s;
-  color: var(--color-text-2);
-}
-.settings-item:hover { background: var(--color-fill-1); }
-.settings-divider {
-  height: 1px;
-  background: var(--color-border-2);
-  margin: 4px 12px;
-}
-.settings-label {
-  padding: 4px 12px 2px;
-  font-size: 11px;
-  color: var(--color-text-3);
-  user-select: none;
-}
-
 /* 区块操作图标 */
 .section-action {
   margin-left: auto;
@@ -894,3 +885,67 @@ function handleDelete(p: { id: string; name: string }) {
   opacity: 0;
 }
 </style>
+
+<!-- 非 scoped：Teleport 到 body 的面板样式 -->
+<style>
+/* 弹出面板公共 */
+.sidebar-popup {
+  z-index: 9999;
+  min-width: 80px;
+  background: var(--color-bg-popup) !important;
+  border: 1px solid var(--color-border);
+  border-radius: 4px;
+  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
+  padding: 2px 0;
+  color: var(--color-text-2);
+}
+
+.sidebar-popup.more-menu {
+  min-width: 80px;
+  border-radius: 4px;
+  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
+}
+
+.sidebar-popup.settings-panel {
+  min-width: 200px;
+  border-radius: 6px;
+}
+
+.more-item {
+  padding: 5px 12px;
+  font-size: 13px;
+  cursor: pointer;
+  color: var(--color-text-2) !important;
+  transition: background 0.15s;
+}
+.more-item:hover { background: var(--color-fill-1); }
+.more-item.danger { color: var(--color-danger-6) !important; }
+.more-item svg { color: inherit !important; fill: currentColor; }
+
+.settings-item {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  padding: 7px 12px;
+  font-size: 13px;
+  cursor: pointer;
+  transition: background 0.12s;
+  color: var(--color-text-2) !important;
+}
+.settings-item svg {
+  color: var(--color-text-2) !important;
+  fill: currentColor;
+}
+.settings-item:hover { background: var(--color-fill-1); }
+.settings-divider {
+  height: 1px;
+  background: var(--color-border-2);
+  margin: 4px 12px;
+}
+.settings-label {
+  padding: 4px 12px 2px;
+  font-size: 11px;
+  color: var(--color-text-3);
+  user-select: none;
+}
+</style>
diff --git a/frontend/src/components/FileSystem/components/Toolbar.vue b/frontend/src/components/FileSystem/components/Toolbar.vue
index e52a097..5f450f0 100644
--- a/frontend/src/components/FileSystem/components/Toolbar.vue
+++ b/frontend/src/components/FileSystem/components/Toolbar.vue
@@ -137,7 +137,7 @@
 </template>
 
 <script setup lang="ts">
-import { nextTick } from 'vue'
+import { nextTick, provide, ref } from 'vue'
 import { IconForward, IconHistory, IconRefresh, IconMenu, IconClose, IconRight, IconCopy, IconCheck } from '@arco-design/web-vue/es/icon'
 import type { ToolbarConfig } from '@/types/file-system'
 import PathBreadcrumb from './PathBreadcrumb.vue'
@@ -145,6 +145,10 @@ import { useClipboardCopy } from '../composables/useClipboardCopy'
 import ConnectionIndicator from './ConnectionIndicator.vue'
 import ConnectionDialog from './ConnectionDialog.vue'
 
+// 面包屑/连接指示器下拉互斥：任一方打开时关闭另一方
+const dropdownOwner = ref<'connection' | 'breadcrumb' | null>(null)
+provide('dropdownOwner', dropdownOwner)
+
 // Props
 interface Props {
   config: ToolbarConfig
diff --git a/frontend/src/components/FileSystem/index.vue b/frontend/src/components/FileSystem/index.vue
index 31b42d5..23a96e5 100644
--- a/frontend/src/components/FileSystem/index.vue
+++ b/frontend/src/components/FileSystem/index.vue
@@ -60,7 +60,10 @@
         />
 
         <!-- 分隔条 -->
-        <div class="resizer" @mousedown="handleHorizontalResize"></div>
+        <div class="resizer" @mousedown="handleResizeWithOverlay"></div>
+
+        <!-- 拖拽遮罩：防止 iframe 捕获鼠标事件 -->
+        <div v-if="isResizing" class="resize-overlay"></div>
 
         <!-- 文件编辑器面板（始终显示，无选中文件时为空白预览区） -->
         <FileEditorPanel
@@ -116,7 +119,8 @@
 import { ref, computed, onMounted, onUnmounted, watch, nextTick } from 'vue'
 import { getPathSeparator } from '@/utils/fileUtils'
 import { Message, Modal } from '@arco-design/web-vue'
-import { marked, renderMermaidDiagrams, rerenderMermaidDiagrams, setCurrentFileDir, setFileServerBase } from '@/utils/markedExtensions'
+import { On, Off } from '@wailsio/events'
+import { renderMarkdown, parseMarkdown, isMarkedReady, preloadMarked, renderMermaidDiagrams, rerenderMermaidDiagrams, setCurrentFileDir, setFileServerBase } from '@/utils/markedExtensions'
 import { useThemeStore } from '@/stores/theme'
 
 // 导入子组件
@@ -138,7 +142,7 @@ import { useMultiPreview, type PreviewTab, isDirty } from './composables/useMult
 // 导入工具函数
 import { getFileName, sortFileList } from '@/utils/fileUtils'
 import { isImageFile, isVideoFile, isAudioFile, isPdfFile, isHtmlFile, isMarkdownFile, isExcelFile, isWordFile, isCsvFile } from '@/utils/fileTypeHelpers'
-import { listDir, saveBase64File } from '@/api/system'
+import { listDir, saveBase64File, watchFile, unwatchFile } from '@/api/system'
 import { connectionManager } from '@/api/connection-manager'
 import { STORAGE_KEYS, DEFAULTS, UI_TEXT, VALIDATION_RULES, FILE_EXTENSIONS, FILE_SIZE_THRESHOLDS } from '@/utils/constants'
 import { createResizeHandler } from '@/utils/resize'
@@ -356,36 +360,52 @@ const fileListPanelConfig = computed(() => ({
   editingFileName: editingFileName.value
 }))
 
-// 计算渲染内容
+// Markdown 渲染状态（异步加载 marked 后触发重渲染）
+const markdownRendered = ref('')
+const setupMarkdownContext = () => {
+  const fullPath = selectedFileItem.value?.path || ''
+  const dir = fullPath ? fullPath.replace(/[/\\][^/\\]+$/, '') : (filePath.value || '')
+  setCurrentFileDir(dir)
+  const isRemote = connectionManager.isRemote()
+  const base = resolveFileServerBase()
+  setFileServerBase(isRemote ? base : base + '/localfs')
+}
+
 const computeRendered = computed(() => {
   const currentFileName = selectedFileItem.value?.name || ''
   if (isHtmlFile(currentFileName)) {
     return fileContent.value || ''
   } else if (isMarkdownFile(currentFileName)) {
-    // 使用配置好的 marked 渲染 Markdown（支持 mermaid + 图片相对路径转换）
-    try {
-      const content = fileContent.value || ''
-
-      // 设置图片路径转换所需的上下文（renderer.image 钩子中读取）
-      // dir: 当前 md 文件所在目录（从文件完整路径中去掉文件名）
-      const fullPath = selectedFileItem.value?.path || ''
-      const dir = fullPath ? fullPath.replace(/[/\\][^/\\]+$/, '') : (filePath.value || '')
-      setCurrentFileDir(dir)
-
-      // 设置文件服务器 Base URL
-      const isRemote = connectionManager.isRemote()
-      const base = resolveFileServerBase()
-      setFileServerBase(isRemote ? base : base + '/localfs')
-
-      return marked.parse(content) as string
-    } catch (error) {
-      console.error('Markdown 解析失败:', error)
-      return fileContent.value || ''
+    if (isMarkedReady()) {
+      try {
+        setupMarkdownContext()
+        return parseMarkdown(fileContent.value || '')
+      } catch (error) {
+        console.error('Markdown 解析失败:', error)
+        return fileContent.value || ''
+      }
     }
+    // marked 未就绪时返回上次渲染结果或原文
+    preloadMarked()
+    return markdownRendered.value || fileContent.value || ''
   }
   return ''
 })
 
+// marked 加载完成后异步渲染并缓存
+watch([() => selectedFileItem.value?.name, fileContent], async () => {
+  const currentFileName = selectedFileItem.value?.name || ''
+  if (!isMarkdownFile(currentFileName)) return
+  if (isMarkedReady()) return // 同步 computed 已处理
+  try {
+    setupMarkdownContext()
+    const html = await renderMarkdown(fileContent.value || '')
+    markdownRendered.value = html
+  } catch (e) {
+    console.error('Markdown 异步渲染失败:', e)
+  }
+})
+
 // 文件编辑器面板配置
 const fileEditorPanelConfig = computed(() => {
   const currentFileName = selectedFileItem.value?.name || ''
@@ -440,17 +460,38 @@ const handleRefresh = async () => {
   await loadDirectory(filePath.value)
 }
 
+// 文件变化事件处理：自动刷新预览（有未保存修改时跳过）
+const handleFileChanged = async (event: any) => {
+  // Wails v3 On 回调参数是 WailsEvent 对象，路径在 event.data
+  const changedPath = event?.data ?? ''
+  if (!changedPath || !selectedFileItem.value) return
+
+  // 标准化路径比较
+  const normalize = (p: string) => p.replace(/\\/g, '/').toLowerCase().replace(/\/+$/, '')
+  if (normalize(changedPath) !== normalize(selectedFileItem.value.path)) return
+
+  // 有未保存修改时不覆盖用户编辑
+  if (originalContent.value !== undefined && fileContent.value !== originalContent.value) return
+
+  await loadFileContent(changedPath)
+  Message.success('文件已更新')
+}
+
 // 程序化切换 profile 时抑制自动导航（如打开收藏/tab切换）
 let _suppressAutoNav = false
+let _lastActiveId = connectionManager.activeProfile?.id
 
-// 连接切换后重置路径并刷新文件列表
+// 连接切换后重置路径并刷新文件列表（仅在活跃连接实际变化时触发）
 connectionManager.onStateChange(async (state) => {
-  if (state === 'connected' && !_suppressAutoNav) {
-    await loadCommonPaths()
-    const targetPath = connectionManager.isRemote() ? '/' : 'C:/'
-    filePath.value = targetPath
-    await loadDirectory(targetPath)
-  }
+  const currentId = connectionManager.activeProfile?.id
+  if (state !== 'connected') return
+  if (currentId === _lastActiveId) return
+  _lastActiveId = currentId
+  if (_suppressAutoNav) return
+  await loadCommonPaths()
+  const targetPath = connectionManager.isRemote() ? '/' : 'C:/'
+  filePath.value = targetPath
+  await loadDirectory(targetPath)
 })
 
 const handleSearchKeywordUpdate = (keyword: string) => {
@@ -580,6 +621,8 @@ const handleOpenFavorite = async (file: FavoriteFile) => {
       await loadCommonPaths()
     } catch (e) {
       console.error('切换连接失败:', e)
+      Message.error(`无法连接: ${e instanceof Error ? e.message : String(e)}`)
+      return
     } finally {
       _suppressAutoNav = false
     }
@@ -600,7 +643,6 @@ const handleOpenFavorite = async (file: FavoriteFile) => {
             await connectionManager.connect(remoteProfile.id)
           }
         } else {
-          // disconnect() 也会触发 onStateChange，需要 suppress
           connectionManager.disconnect()
         }
         await loadCommonPaths()
@@ -613,7 +655,6 @@ const handleOpenFavorite = async (file: FavoriteFile) => {
   if (file.isDir) {
     await navigate(file.path)
   } else {
-    // 先导航到父目录，再选中文件
     const parentPath = file.path.substring(0, Math.max(file.path.lastIndexOf('/'), file.path.lastIndexOf('\\')))
     if (parentPath && parentPath !== filePath.value) {
       await navigate(parentPath)
@@ -1222,8 +1263,11 @@ const selectFile = async (path: string) => {
 }
 
 const loadFileContent = async (path: string) => {
+  // 切换文件时先取消前一个文件的监听
+  unwatchFile().catch(() => {})
+
   try {
-    updatePreviewUrl(path)
+    await updatePreviewUrl(path)
 
     const fileName = getFileName(path)
     const fileItem = selectedFileItem.value
@@ -1278,6 +1322,7 @@ const loadFileContent = async (path: string) => {
 
     // 其他情况：加载为文本文件
     await loadFile(path)
+    watchFile(path).catch(() => {})
   } catch (error) {
     Message.error(`读取文件失败: ${error}`)
   }
@@ -1396,6 +1441,8 @@ const extractZipTextAndRead = async (zipPath: string, filePath: string): Promise
   }
 }
 
+const isResizing = ref(false)
+
 const handleHorizontalResize = createResizeHandler(
   () => workspaceRef.value,
   () => panelWidth.value.left,
@@ -1406,14 +1453,29 @@ const handleHorizontalResize = createResizeHandler(
     onResize: (percent) => {
       panelWidth.value = { left: percent, right: 100 - percent }
     },
-    onResizeEnd: () => savePanelWidth(panelWidth.value),
+    onResizeEnd: () => {
+      isResizing.value = false
+      savePanelWidth(panelWidth.value)
+    },
   }
 )
 
+// mousedown 时即激活遮罩，防止 iframe 捕获鼠标
+const handleResizeWithOverlay = (e: MouseEvent) => {
+  isResizing.value = true
+  handleHorizontalResize(e)
+}
+
 // ========== 生命周期 ==========
 
 onMounted(async () => {
-  // 加载系统路径（阻塞，确保快捷入口就绪）
+  // 1. 先注册全局事件，不阻塞渲染
+  window.addEventListener('keydown', handleKeyDown)
+  window.addEventListener('click', hideContextMenu)
+  window.addEventListener('paste', handlePaste)
+  On('file-changed', handleFileChanged)
+
+  // 2. 加载系统路径
   await loadCommonPaths()
 
   // SFTP 连接是异步的，未就绪时跳过初始加载，由 onStateChange('connected') 触发
@@ -1422,10 +1484,9 @@ onMounted(async () => {
     return
   }
 
-  // 初始化加载：远程模式强制用根路径，避免 localStorage 残留 Windows 路径
+  // 3. 加载目录列表
   const startPath = connectionManager.isRemote() ? '/'
     : (commonPaths.value.length > 0 ? commonPaths.value[0].path : 'C:/')
-  // 本地模式下只恢复 Windows 路径，跳过 Linux/OSS 路径残留
   const isLocalPath = filePath.value && /^[A-Za-z]:/.test(filePath.value)
   if (isLocalPath && !connectionManager.isRemote()) {
     await loadDirectory(filePath.value)
@@ -1434,10 +1495,16 @@ onMounted(async () => {
     await loadDirectory(startPath)
   }
 
-  // 恢复多文件预览会话
+  // 4. 会话恢复延迟到下一帧，先让界面渲染出来
+  requestAnimationFrame(() => {
+    restoreSession()
+  })
+})
+
+// 会话恢复（不阻塞首屏）
+async function restoreSession() {
   const session = multiPreview.restoreSession()
   if (session.paths.length > 0) {
-    // 找到激活 tab 的 profileId，先切换到该连接
     const activeId = session.activePath
       ? session.profileMap.get(session.activePath.replace(/\\/g, '/').toLowerCase())
       : undefined
@@ -1456,7 +1523,6 @@ onMounted(async () => {
       multiPreview.applyUnsavedContent(tab, session.unsavedMap)
     }
 
-    // 加载激活 tab 的内容
     const active = multiPreview.activeTab.value
     if (active) {
       selectedFileItem.value = active.fileItem
@@ -1468,7 +1534,6 @@ onMounted(async () => {
       }
     }
   } 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(/\/+$/, '')
@@ -1482,19 +1547,14 @@ onMounted(async () => {
       }
     }
   }
-
-  // 添加键盘快捷键
-  window.addEventListener('keydown', handleKeyDown)
-  window.addEventListener('click', hideContextMenu)
-
-  // 添加粘贴事件监听（剪贴板图片）
-  window.addEventListener('paste', handlePaste)
-})
+}
 
 onUnmounted(() => {
   window.removeEventListener('keydown', handleKeyDown)
   window.removeEventListener('click', hideContextMenu)
   window.removeEventListener('paste', handlePaste)
+  Off('file-changed')
+  unwatchFile()
   // 应用关闭时立即持久化当前会话
   cacheCurrentTabState()
   multiPreview.persistSession()
@@ -1528,7 +1588,7 @@ const handleKeyDown = async (event: KeyboardEvent) => {
     return
   }
 
-  // Ctrl+Shift+C/D/E/F/G/H 快速打开对应盘符
+  // Ctrl+Shift+C/D/E/F/G/H 快速定位到本机对应盘符
   if ((event.ctrlKey || event.metaKey) && event.shiftKey) {
     const driveLetter = event.key.toUpperCase()
     if (['C', 'D', 'E', 'F', 'G', 'H'].includes(driveLetter)) {
@@ -1536,6 +1596,16 @@ const handleKeyDown = async (event: KeyboardEvent) => {
       const drivePath = `${driveLetter}:\\`
       isNavigating.value = true
       try {
+        // 如果当前在远程连接，先切回本地
+        if (connectionManager.isRemote()) {
+          _suppressAutoNav = true
+          try {
+            await connectionManager.connect('local-default')
+          } finally {
+            _suppressAutoNav = false
+          }
+          await loadCommonPaths()
+        }
         await navigate(drivePath)
       } finally {
         isNavigating.value = false
@@ -1772,6 +1842,7 @@ watch(() => themeStore.isDark, async () => {
   flex: 1;
   display: flex;
   overflow: hidden;
+  position: relative;
 }
 
 .resizer {
@@ -1785,4 +1856,11 @@ watch(() => themeStore.isDark, async () => {
 .resizer:hover {
   background: var(--color-primary-light-1);
 }
+
+.resize-overlay {
+  position: absolute;
+  inset: 0;
+  z-index: 100;
+  cursor: col-resize;
+}
 </style>
diff --git a/frontend/src/components/MarkdownPreview.vue b/frontend/src/components/MarkdownPreview.vue
index 9f6a656..46463a5 100644
--- a/frontend/src/components/MarkdownPreview.vue
+++ b/frontend/src/components/MarkdownPreview.vue
@@ -5,7 +5,7 @@
 </template>
 
 <script>
-import { marked } from '@/utils/markedExtensions'
+import { parseMarkdown, renderMarkdown, isMarkedReady, preloadMarked } from '@/utils/markedExtensions'
 
 function sanitizeHtml(html) {
   return html
@@ -27,9 +27,27 @@ export default {
       default: ''
     }
   },
+  data() {
+    return { rendered: '' }
+  },
   computed: {
     renderedMarkdown() {
-      return sanitizeHtml(marked(this.content))
+      if (isMarkedReady()) {
+        return sanitizeHtml(parseMarkdown(this.content))
+      }
+      preloadMarked()
+      return sanitizeHtml(this.rendered || this.content)
+    }
+  },
+  watch: {
+    content: {
+      immediate: true,
+      async handler(val) {
+        if (!isMarkedReady()) {
+          const html = await renderMarkdown(val)
+          this.rendered = sanitizeHtml(html)
+        }
+      }
     }
   }
 }
diff --git a/frontend/src/components/UpdateNotification.vue b/frontend/src/components/UpdateNotification.vue
index 76de1b3..53a9399 100644
--- a/frontend/src/components/UpdateNotification.vue
+++ b/frontend/src/components/UpdateNotification.vue
@@ -6,7 +6,7 @@
 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 { parseMarkdown, isMarkedReady, preloadMarked } from '../utils/markedExtensions'
 import { sanitizeHtml } from '@/utils/fileUtils'
 import { DownloadUpdate } from '../wailsjs/v3-bindings/u-desk/app'
 import { On, Off } from '@wailsio/events'
@@ -80,7 +80,7 @@ const showUpdateModal = () => {
 
       // 更新日志
       if (changelog.value) {
-        const changelogHtml = (() => { try { return sanitizeHtml(String(marked.parse(changelog.value))) } catch { return changelog.value } })()
+        const changelogHtml = (() => { try { if (isMarkedReady()) return sanitizeHtml(String(parseMarkdown(changelog.value))); preloadMarked(); return sanitizeHtml(changelog.value) } catch { return changelog.value } })()
         elements.push(
           h('div', { style: { marginBottom: '8px' } }, [
             h('div', { style: { fontSize: '12px', color: 'var(--color-text-2)', marginBottom: '4px' } }, '更新内容：'),
diff --git a/frontend/src/components/UpdatePanel.vue b/frontend/src/components/UpdatePanel.vue
index 11ae324..c91e8d6 100644
--- a/frontend/src/components/UpdatePanel.vue
+++ b/frontend/src/components/UpdatePanel.vue
@@ -118,7 +118,7 @@ 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 { parseMarkdown, isMarkedReady, preloadMarked } from '../utils/markedExtensions'
 import { sanitizeHtml } from '@/utils/fileUtils'
 import { GetCurrentVersion, GetUpdateConfig, InstallUpdate } from '../wailsjs/v3-bindings/u-desk/app'
 import { On, Off } from '@wailsio/events'
@@ -141,7 +141,7 @@ const downloadedFile = ref(null)
 /** 渲染 changelog（Markdown → HTML） */
 function renderChangelog(text: string): string {
   if (!text) return ''
-  try { return sanitizeHtml(marked.parse(text) as string) } catch { return text }
+  try { if (isMarkedReady()) return sanitizeHtml(parseMarkdown(text)); preloadMarked(); return sanitizeHtml(text) } catch { return text }
 }
 
 // 加载当前版本
diff --git a/frontend/src/utils/markedExtensions.ts b/frontend/src/utils/markedExtensions.ts
index 02fc132..86cb2b9 100644
--- a/frontend/src/utils/markedExtensions.ts
+++ b/frontend/src/utils/markedExtensions.ts
@@ -1,20 +1,176 @@
-import { marked } from 'marked'
-import hljs from 'highlight.js'
-import 'highlight.js/lib/common'
-// 按需导入 common 包不包含的语言
-import 'highlight.js/lib/languages/powershell'
-import 'highlight.js/lib/languages/dos'
-import 'highlight.js/lib/languages/autohotkey'
-import 'highlight.js/lib/languages/latex'
-import 'highlight.js/lib/languages/dockerfile'
-import 'highlight.js/lib/languages/cmake'
-import 'highlight.js/lib/languages/scala'
-import 'highlight.js/lib/languages/dart'
 import { getHljsLanguage } from './languageMap'
 
 let mermaidInstance: typeof import('mermaid').default | null = null
 let mermaidTheme: string | null = null
 
+// 懒加载 marked + hljs，首次调用时才初始化
+let _marked: typeof import('marked').marked | null = null
+let _initPromise: Promise<typeof import('marked').marked> | null = null
+
+async function ensureMarked(): Promise<typeof import('marked').marked> {
+  if (_marked) return _marked
+  if (_initPromise) return _initPromise
+
+  _initPromise = (async () => {
+    const [markedModule, hljs, ...extras] = await Promise.all([
+      import('marked'),
+      import('highlight.js'),
+      import('highlight.js/lib/languages/powershell'),
+      import('highlight.js/lib/languages/dos'),
+      import('highlight.js/lib/languages/autohotkey'),
+      import('highlight.js/lib/languages/latex'),
+      import('highlight.js/lib/languages/dockerfile'),
+      import('highlight.js/lib/languages/cmake'),
+      import('highlight.js/lib/languages/scala'),
+      import('highlight.js/lib/languages/dart'),
+    ])
+    // 注册额外语言到 hljs
+    const langNames = ['powershell', 'dos', 'autohotkey', 'latex', 'dockerfile', 'cmake', 'scala', 'dart']
+    extras.forEach((mod, i) => {
+      hljs.default.registerLanguage(langNames[i], (mod as any).default)
+    })
+
+    const marked = markedModule.marked
+    const renderer = new marked.Renderer()
+
+    renderer.code = function(token: any) {
+      if (token.lang === 'mermaid') {
+        return `<pre class="mermaid">${token.text}</pre>`
+      }
+
+      const lang = getHljsLanguage(token.lang)
+
+      let highlighted: string
+      try {
+        highlighted = hljs.default.highlight(token.text, { language: lang }).value
+      } catch {
+        highlighted = token.text.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;')
+      }
+      return `<pre><code class="hljs language-${lang}" data-theme="auto">${highlighted}</code></pre>`
+    }
+
+    renderer.heading = function(token: any) {
+      const raw = token.raw || ''
+      const depth = token.depth || 1
+      const text = token.text || ''
+
+      const id = raw
+        .toLowerCase()
+        .replace(/[^一-龥a-z0-9\s-]/g, '')
+        .trim()
+        .replace(/\s+/g, '-')
+        .replace(/-+/g, '-')
+        .replace(/^-+|-+$/g, '') || `heading-${Math.random().toString(36).slice(2, 11)}`
+
+      return `<h${depth} id="${id}" class="heading">
+        ${text}<a href="#${id}" class="heading-anchor" aria-hidden="true" title="跳转到此标题">#</a>
+      </h${depth}>`
+    }
+
+    // 图片/链接渲染器
+    renderer.image = createImageRenderer()
+    renderer.link = createLinkRenderer()
+
+    marked.use({ renderer, breaks: true, gfm: true, async: false })
+
+    _marked = marked
+    return marked
+  })()
+
+  return _initPromise
+}
+
+// ========== 图片相对路径转换支持 ==========
+let _currentFileDir: string = ''
+let _fileServerBase: string = 'http://localhost:2652/localfs'
+
+export function setCurrentFileDir(dir: string): void {
+  _currentFileDir = dir
+}
+
+export function getCurrentFileDir(): string {
+  return _currentFileDir
+}
+
+export function setFileServerBase(base: string): void {
+  _fileServerBase = base
+}
+
+function resolveImageUrl(src: string, fileServerBase: string): string {
+  if (!src) return src
+  if (/^(?:[a-zA-Z]:[/\\]|\/(?:[^/]|$)|https?:|ftp:|data:|#)/i.test(src)) return src
+
+  const dir = _currentFileDir || '/'
+  const sep = dir.includes('\\') ? '\\' : '/'
+  let resolved = normalizeRelativePath(dir, src, sep)
+
+  const encoded = encodeURIComponent(resolved).replace(/%2F/gi, '/').replace(/%5C/gi, '\\')
+  return `${fileServerBase}/${encoded}`
+}
+
+function normalizeRelativePath(base: string, relative: string, sep: string): string {
+  let baseNormalized = base.replace(/[\\/]+$/, '')
+  if (!baseNormalized) baseNormalized = sep === '/' ? '/' : 'C:\\'
+
+  const baseParts = baseNormalized.split(sep).filter(Boolean)
+  const relParts = relative.split(/[\\/]/).filter(Boolean)
+
+  for (const part of relParts) {
+    if (part === '..') {
+      baseParts.pop()
+    } else if (part !== '.') {
+      baseParts.push(part)
+    }
+  }
+
+  if (/^[a-zA-Z]:$/i.test(baseNormalized.split(sep)[0] || '')) {
+    return baseParts.join(sep)
+  }
+  return sep + baseParts.join(sep)
+}
+
+const isLocalFileLink = (href: string): boolean => {
+  if (!href) return false
+  if (/^(https?|ftp|mailto|tel|data):/i.test(href)) return false
+  if (href.startsWith('#')) return false
+  return true
+}
+
+function createImageRenderer() {
+  return function(token: any) {
+    const src = token.href || ''
+    const title = token.title || ''
+    const alt = token.text || ''
+    const titleAttr = title ? ` title="${title}"` : ''
+
+    if (_currentFileDir && !/^(?:[a-zA-Z]:[/\\]|\/(?:[^/]|$)|https?:|ftp:|data:|#)/i.test(src)) {
+      const resolvedSrc = resolveImageUrl(src, _fileServerBase)
+      return `<img src="${resolvedSrc}" alt="${alt}"${titleAttr}>`
+    }
+
+    return `<img src="${src}" alt="${alt}"${titleAttr}>`
+  }
+}
+
+function createLinkRenderer() {
+  return function(this: any, token: any) {
+    const href = token.href || ''
+    const text = this.parser.parseInline(token.tokens) || token.text || ''
+    const title = token.title || ''
+    const titleAttr = title ? ` title="${title}"` : ''
+
+    if (href.startsWith('#')) {
+      return `<a href="${href}${titleAttr}">${text}</a>`
+    }
+
+    if (isLocalFileLink(href)) {
+      return `<a href="javascript:void(0)" data-local-link="${href}" class="local-file-link"${titleAttr}>${text}</a>`
+    }
+
+    return `<a href="${href}" target="_blank" rel="noopener noreferrer"${titleAttr}>${text}</a>`
+  }
+}
+
 // 检测当前是否为暗色主题
 function isDarkTheme(): boolean {
   if (typeof document === 'undefined') return false
@@ -64,167 +220,31 @@ async function loadMermaid() {
   return mermaidInstance
 }
 
-const renderer = new marked.Renderer()
-
-renderer.code = function(token: any) {
-  if (token.lang === 'mermaid') {
-    return `<pre class="mermaid">${token.text}</pre>`
-  }
-
-  const lang = getHljsLanguage(token.lang)
-
-  let highlighted: string
-  try {
-    highlighted = hljs.highlight(token.text, { language: lang }).value
-  } catch {
-    highlighted = token.text.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;')
-  }
-  return `<pre><code class="hljs language-${lang}" data-theme="auto">${highlighted}</code></pre>`
+/** 同步渲染 Markdown（需先调用 ensureMarked 初始化） */
+export async function renderMarkdown(content: string): Promise<string> {
+  const marked = await ensureMarked()
+  return marked.parse(content) as string
 }
 
-renderer.heading = function(token: any) {
-  const raw = token.raw || ''
-  const depth = token.depth || 1
-  const text = token.text || ''
-
-  const id = raw
-    .toLowerCase()
-    .replace(/[^\u4e00-\u9fa5a-z0-9\s-]/g, '')
-    .trim()
-    .replace(/\s+/g, '-')
-    .replace(/-+/g, '-')
-    .replace(/^-+|-+$/g, '') || `heading-${Math.random().toString(36).slice(2, 11)}`
-
-  return `<h${depth} id="${id}" class="heading">
-    ${text}<a href="#${id}" class="heading-anchor" aria-hidden="true" title="跳转到此标题">#</a>
-  </h${depth}>`
+/** 检查 marked 是否已初始化（同步渲染用） */
+export function isMarkedReady(): boolean {
+  return _marked !== null
 }
 
-// ========== 图片相对路径转换支持 ==========
-// 当前 Markdown 文件所在目录（由调用方在渲染前设置）
-let _currentFileDir: string = ''
-// 文件服务器 Base URL（由调用方在渲染前设置）
-let _fileServerBase: string = 'http://localhost:2652/localfs'
-
-/**
- * 设置当前 Markdown 文件所在目录（用于图片相对路径→文件服务器 URL 转换）
- * @param dir 文件所在目录的绝对路径，如 "D:/docs" 或 "/"（根目录）
- */
-export function setCurrentFileDir(dir: string): void {
-  _currentFileDir = dir
+/** 同步渲染（仅当已初始化时可用） */
+export function parseMarkdown(content: string): string {
+  if (!_marked) return ''
+  return _marked.parse(content) as string
 }
 
-/** 获取当前设置的文件目录 */
-export function getCurrentFileDir(): string {
-  return _currentFileDir
+/** 触发懒加载（可在空闲时调用） */
+export function preloadMarked(): void {
+  ensureMarked().catch(() => {})
 }
 
-/**
- * 设置文件服务器 Base URL（用于图片相对路径转换）
- * @param base 完整的 base URL 前缀，如 "http://localhost:2652/localfs" 或 "https://host:port/api/v1/proxy/localfs"
- */
-export function setFileServerBase(base: string): void {
-  _fileServerBase = base
-}
-
-/**
- * 将相对路径图片 src 解析为文件服务器 URL
- * - 绝对路径（Windows: D:/...、Unix: /usr/...）、网络URL、data URI → 不转换
- * - 相对路径 → 基于当前文件目录解析为绝对路径，再编码为文件服务器 URL
- */
-function resolveImageUrl(src: string, fileServerBase: string): string {
-  if (!src) return src
-  // 不转换：绝对路径（Windows 盘符）、网络协议、锚点、data URI
-  if (/^(?:[a-zA-Z]:[/\\]|\/(?:[^/]|$)|https?:|ftp:|data:|#)/i.test(src)) return src
-
-  // 解析相对路径（处理 ../ 和 ./）
-  const dir = _currentFileDir || '/'
-  const sep = dir.includes('\\') ? '\\' : '/'
-  let resolved = normalizeRelativePath(dir, src, sep)
-
-  // 编码路径（保留 / 分隔符）
-  const encoded = encodeURIComponent(resolved).replace(/%2F/gi, '/').replace(/%5C/gi, '\\')
-  return `${fileServerBase}/${encoded}`
-}
-
-/**
- * 规范化相对路径，处理 .. 和 . 段
- */
-function normalizeRelativePath(base: string, relative: string, sep: string): string {
-  // 确保基础路径不以分隔符结尾
-  let baseNormalized = base.replace(/[\\/]+$/, '')
-  if (!baseNormalized) baseNormalized = sep === '/' ? '/' : 'C:\\'
-
-  const baseParts = baseNormalized.split(sep).filter(Boolean)
-  const relParts = relative.split(/[\\/]/).filter(Boolean)
-
-  for (const part of relParts) {
-    if (part === '..') {
-      baseParts.pop() // 向上一级
-    } else if (part !== '.') {
-      baseParts.push(part)
-    }
-  }
-
-  // 重建路径：Windows 绝对路径保留盘符前缀
-  if (/^[a-zA-Z]:$/i.test(baseNormalized.split(sep)[0] || '')) {
-    return baseParts.join(sep)
-  }
-  // Unix 风格：以 / 开头
-  return sep + baseParts.join(sep)
-}
-
-// 判断是否为本地文件链接（相对路径或本地绝对路径）
-const isLocalFileLink = (href: string): boolean => {
-  if (!href) return false
-  if (/^(https?|ftp|mailto|tel|data):/i.test(href)) return false
-  if (href.startsWith('#')) return false
-  return true
-}
-
-// 自定义图片渲染器 - 转换相对路径为文件服务器 URL
-renderer.image = function(token: any) {
-  const src = token.href || ''
-  const title = token.title || ''
-  const alt = token.text || ''
-  const titleAttr = title ? ` title="${title}"` : ''
-
-  // 判断是否需要转换（仅处理相对路径，且当前目录已设置）
-  if (_currentFileDir && !/^(?:[a-zA-Z]:[/\\]|\/(?:[^/]|$)|https?:|ftp:|data:|#)/i.test(src)) {
-    const resolvedSrc = resolveImageUrl(src, _fileServerBase)
-    return `<img src="${resolvedSrc}" alt="${alt}"${titleAttr}>`
-  }
-
-  // 默认渲染（绝对路径 / 网络 URL / data URI / 未设置目录时原样输出）
-  return `<img src="${src}" alt="${alt}"${titleAttr}>`
-}
-
-// 自定义链接渲染器 - 支持本地文件链接
-renderer.link = function(token: any) {
-  const href = token.href || ''
-  const text = this.parser.parseInline(token.tokens) || token.text || ''
-  const title = token.title || ''
-  const titleAttr = title ? ` title="${title}"` : ''
-
-  if (href.startsWith('#')) {
-    return `<a href="${href}${titleAttr}">${text}</a>`
-  }
-
-  if (isLocalFileLink(href)) {
-    return `<a href="javascript:void(0)" data-local-link="${href}" class="local-file-link"${titleAttr}>${text}</a>`
-  }
-
-  return `<a href="${href}" target="_blank" rel="noopener noreferrer"${titleAttr}>${text}</a>`
-}
-
-marked.use({ renderer, breaks: true, gfm: true, async: false })
-
-export { marked }
-
 export async function renderMermaidDiagrams() {
   const mermaid = await loadMermaid()
   if (mermaid) {
-    // 渲染前保存原始源码（textContent 在 SVG 渲染后会变成 CSS 垃圾）
     document.querySelectorAll('.mermaid:not([data-mermaid-src])').forEach(pre => {
       ;(pre as HTMLElement).setAttribute('data-mermaid-src', pre.textContent || '')
     })
@@ -232,9 +252,7 @@ export async function renderMermaidDiagrams() {
   }
 }
 
-/** 清除已渲染内容并重新渲染（用于主题切换后刷新） */
 export async function rerenderMermaidDiagrams(container?: HTMLElement | null) {
-  // 强制重新加载（清除缓存，让下次 loadMermaid 重新初始化新主题）
   mermaidInstance = null
   mermaidTheme = null
 
@@ -242,7 +260,6 @@ export async function rerenderMermaidDiagrams(container?: HTMLElement | null) {
   target.querySelectorAll('.mermaid').forEach(pre => {
     const el = pre as HTMLElement
     if (el.getAttribute('data-processed')) {
-      // 从保存的原始源码恢复，而非 textContent（SVG 的 textContent 是 CSS 垃圾）
       el.innerHTML = el.getAttribute('data-mermaid-src') || ''
       el.removeAttribute('data-processed')
     }
diff --git a/frontend/src/utils/resize.ts b/frontend/src/utils/resize.ts
index 48cebf3..121a5b6 100644
--- a/frontend/src/utils/resize.ts
+++ b/frontend/src/utils/resize.ts
@@ -52,52 +52,52 @@ export function createResizeHandler(
     const container = getContainer()
     if (!container) return
 
-    // 初始值：pixels 模式下从 getter 获取像素值，percent 模式下获取百分比
+    // mousedown 时缓存容器尺寸，避免每帧 getBoundingClientRect 强制回流
+    const cachedRect = container.getBoundingClientRect()
+    const containerSize = isHorizontal ? cachedRect.width : cachedRect.height
+
+    // 初始值
     let startValue = getInitialPercentage()
     if (usePixels) {
-      // pixels 模式：将初始像素值转换为百分比用于拖拽计算
-      const rect = container.getBoundingClientRect()
-      const containerSize = isHorizontal ? rect.width : rect.height
       if (containerSize > 0) {
         startValue = (startValue / containerSize) * 100
       }
     }
 
+    const minPercentFromPixels = containerSize > 0 ? (minPixels / containerSize) * 100 : 0
+
+    let rafId = 0
+
     const handleMouseMove = (moveEvent: MouseEvent) => {
-      const currentRect = container.getBoundingClientRect()
-      let rawValue: number
+      cancelAnimationFrame(rafId)
+      rafId = requestAnimationFrame(() => {
+        let rawValue: number
 
-      if (isHorizontal) {
-        rawValue = ((moveEvent.clientX - currentRect.left) / currentRect.width) * 100
-      } else {
-        rawValue = ((moveEvent.clientY - currentRect.top) / currentRect.height) * 100
-      }
+        if (isHorizontal) {
+          rawValue = ((moveEvent.clientX - cachedRect.left) / containerSize) * 100
+        } else {
+          rawValue = ((moveEvent.clientY - cachedRect.top) / containerSize) * 100
+        }
 
-      const minPercentFromPixels = (minPixels / (isHorizontal ? currentRect.width : currentRect.height)) * 100
-      const clamped = Math.max(
-        Math.max(minPercent, minPercentFromPixels),
-        Math.min(maxPercent, rawValue)
-      )
+        const clamped = Math.max(
+          Math.max(minPercent, minPercentFromPixels),
+          Math.min(maxPercent, rawValue)
+        )
 
-      if (usePixels) {
-        // 转回像素值传给回调
-        const containerSize = isHorizontal ? currentRect.width : currentRect.height
-        onResize?.(Math.round((clamped / 100) * containerSize))
-      } else {
-        onResize?.(clamped)
-      }
+        if (usePixels) {
+          onResize?.(Math.round((clamped / 100) * containerSize))
+        } else {
+          onResize?.(clamped)
+        }
+      })
     }
 
     const handleMouseUp = () => {
+      cancelAnimationFrame(rafId)
       document.removeEventListener('mousemove', handleMouseMove)
       document.removeEventListener('mouseup', handleMouseUp)
       document.body.classList.remove('resizing')
-      if (usePixels) {
-        // pixels 模式：传回当前像素值（onResize 已更新，读 getter 获取最新值）
-        onResizeEnd?.(getInitialPercentage())
-      } else {
-        onResizeEnd?.(getInitialPercentage())
-      }
+      onResizeEnd?.(getInitialPercentage())
     }
 
     document.addEventListener('mousemove', handleMouseMove)
diff --git a/frontend/src/wailsjs/v3-bindings/u-desk/app.ts b/frontend/src/wailsjs/v3-bindings/u-desk/app.ts
index d1b3e0d..edbdcd5 100644
--- a/frontend/src/wailsjs/v3-bindings/u-desk/app.ts
+++ b/frontend/src/wailsjs/v3-bindings/u-desk/app.ts
@@ -21,12 +21,28 @@ import * as filesystem$0 from "./internal/filesystem/models.js";
 // @ts-ignore: Unused imports
 import * as $models from "./models.js";
 
+/**
+ * BgmGetPlaylist 获取播放列表
+ */
+export function BgmGetPlaylist(): $CancellablePromise<$models.BgmPlaylistItem[]> {
+    return $Call.ByID(3200870077).then(($result: any) => {
+        return $$createType1($result);
+    });
+}
+
+/**
+ * BgmSavePlaylist 全量保存播放列表（前端调用时传完整列表）
+ */
+export function BgmSavePlaylist(items: $models.BgmPlaylistItem[]): $CancellablePromise<void> {
+    return $Call.ByID(2929660002, items);
+}
+
 /**
  * CheckUpdate 检查更新
  */
 export function CheckUpdate(): $CancellablePromise<{ [_ in string]?: any }> {
     return $Call.ByID(586574094).then(($result: any) => {
-        return $$createType0($result);
+        return $$createType2($result);
     });
 }
 
@@ -42,7 +58,7 @@ export function ClearCache(): $CancellablePromise<void> {
  */
 export function CreateDir(path: string): $CancellablePromise<filesystem$0.FileOperationResult | null> {
     return $Call.ByID(632035444, path).then(($result: any) => {
-        return $$createType2($result);
+        return $$createType4($result);
     });
 }
 
@@ -51,16 +67,20 @@ export function CreateDir(path: string): $CancellablePromise<filesystem$0.FileOp
  */
 export function CreateFile(path: string): $CancellablePromise<filesystem$0.FileOperationResult | null> {
     return $Call.ByID(3418645411, path).then(($result: any) => {
-        return $$createType2($result);
+        return $$createType4($result);
     });
 }
 
+export function DeleteConnectionProfile(id: number): $CancellablePromise<void> {
+    return $Call.ByID(2675016907, id);
+}
+
 /**
  * DeletePath 删除文件或目录
  */
 export function DeletePath(path: string): $CancellablePromise<filesystem$0.FileOperationResult | null> {
     return $Call.ByID(1564637217, path).then(($result: any) => {
-        return $$createType2($result);
+        return $$createType4($result);
     });
 }
 
@@ -76,7 +96,7 @@ export function DeletePermanently(recyclePath: string): $CancellablePromise<void
  */
 export function DetectFileTypeByContent(path: string): $CancellablePromise<{ [_ in string]?: any }> {
     return $Call.ByID(3067282982, path).then(($result: any) => {
-        return $$createType0($result);
+        return $$createType2($result);
     });
 }
 
@@ -85,7 +105,7 @@ export function DetectFileTypeByContent(path: string): $CancellablePromise<{ [_
  */
 export function DownloadUpdate(downloadURL: string): $CancellablePromise<{ [_ in string]?: any }> {
     return $Call.ByID(115027584, downloadURL).then(($result: any) => {
-        return $$createType0($result);
+        return $$createType2($result);
     });
 }
 
@@ -101,7 +121,7 @@ export function EmptyRecycleBin(): $CancellablePromise<void> {
  */
 export function ExportPDF(content: string, title: string, fileName: string, fontSize: number, pageWidth: number, pageHeight: number): $CancellablePromise<{ [_ in string]?: any }> {
     return $Call.ByID(1770450987, content, title, fileName, fontSize, pageWidth, pageHeight).then(($result: any) => {
-        return $$createType0($result);
+        return $$createType2($result);
     });
 }
 
@@ -124,7 +144,7 @@ export function ExtractFileFromZipToTemp(zipPath: string, filePath: string): $Ca
  */
 export function GetAppConfig(): $CancellablePromise<{ [_ in string]?: any }> {
     return $Call.ByID(2006534548).then(($result: any) => {
-        return $$createType0($result);
+        return $$createType2($result);
     });
 }
 
@@ -133,7 +153,7 @@ export function GetAppConfig(): $CancellablePromise<{ [_ in string]?: any }> {
  */
 export function GetAuditLogs(limit: number): $CancellablePromise<{ [_ in string]?: any }[]> {
     return $Call.ByID(3554903517, limit).then(($result: any) => {
-        return $$createType3($result);
+        return $$createType5($result);
     });
 }
 
@@ -142,7 +162,7 @@ export function GetAuditLogs(limit: number): $CancellablePromise<{ [_ in string]
  */
 export function GetCPUInfo(): $CancellablePromise<{ [_ in string]?: any }> {
     return $Call.ByID(2509681007).then(($result: any) => {
-        return $$createType0($result);
+        return $$createType2($result);
     });
 }
 
@@ -151,7 +171,7 @@ export function GetCPUInfo(): $CancellablePromise<{ [_ in string]?: any }> {
  */
 export function GetCommonPaths(): $CancellablePromise<{ [_ in string]?: string }> {
     return $Call.ByID(3953343786).then(($result: any) => {
-        return $$createType4($result);
+        return $$createType6($result);
     });
 }
 
@@ -160,7 +180,7 @@ export function GetCommonPaths(): $CancellablePromise<{ [_ in string]?: string }
  */
 export function GetCurrentVersion(): $CancellablePromise<{ [_ in string]?: any }> {
     return $Call.ByID(1827245900).then(($result: any) => {
-        return $$createType0($result);
+        return $$createType2($result);
     });
 }
 
@@ -169,7 +189,7 @@ export function GetCurrentVersion(): $CancellablePromise<{ [_ in string]?: any }
  */
 export function GetDiskInfo(): $CancellablePromise<{ [_ in string]?: any }[]> {
     return $Call.ByID(3756377758).then(($result: any) => {
-        return $$createType3($result);
+        return $$createType5($result);
     });
 }
 
@@ -178,7 +198,7 @@ export function GetDiskInfo(): $CancellablePromise<{ [_ in string]?: any }[]> {
  */
 export function GetEnvVars(): $CancellablePromise<{ [_ in string]?: string }> {
     return $Call.ByID(363814436).then(($result: any) => {
-        return $$createType4($result);
+        return $$createType6($result);
     });
 }
 
@@ -187,7 +207,7 @@ export function GetEnvVars(): $CancellablePromise<{ [_ in string]?: string }> {
  */
 export function GetFileInfo(path: string): $CancellablePromise<{ [_ in string]?: any }> {
     return $Call.ByID(2071650585, path).then(($result: any) => {
-        return $$createType0($result);
+        return $$createType2($result);
     });
 }
 
@@ -198,12 +218,18 @@ export function GetFileServerURL(): $CancellablePromise<string> {
     return $Call.ByID(4117667287);
 }
 
+export function GetLocalSystemInfo(): $CancellablePromise<{ [_ in string]?: any }> {
+    return $Call.ByID(2203542363).then(($result: any) => {
+        return $$createType2($result);
+    });
+}
+
 /**
  * GetMemoryInfo 获取内存信息
  */
 export function GetMemoryInfo(): $CancellablePromise<{ [_ in string]?: any }> {
     return $Call.ByID(2096905876).then(($result: any) => {
-        return $$createType0($result);
+        return $$createType2($result);
     });
 }
 
@@ -212,7 +238,7 @@ export function GetMemoryInfo(): $CancellablePromise<{ [_ in string]?: any }> {
  */
 export function GetRecycleBinEntries(): $CancellablePromise<{ [_ in string]?: any }[]> {
     return $Call.ByID(2312855399).then(($result: any) => {
-        return $$createType3($result);
+        return $$createType5($result);
     });
 }
 
@@ -221,7 +247,7 @@ export function GetRecycleBinEntries(): $CancellablePromise<{ [_ in string]?: an
  */
 export function GetSystemInfo(): $CancellablePromise<{ [_ in string]?: any }> {
     return $Call.ByID(1347250254).then(($result: any) => {
-        return $$createType0($result);
+        return $$createType2($result);
     });
 }
 
@@ -230,7 +256,7 @@ export function GetSystemInfo(): $CancellablePromise<{ [_ in string]?: any }> {
  */
 export function GetUpdateConfig(): $CancellablePromise<{ [_ in string]?: any }> {
     return $Call.ByID(680804904).then(($result: any) => {
-        return $$createType0($result);
+        return $$createType2($result);
     });
 }
 
@@ -239,16 +265,23 @@ export function GetUpdateConfig(): $CancellablePromise<{ [_ in string]?: any }>
  */
 export function GetZipFileInfo(zipPath: string, filePath: string): $CancellablePromise<{ [_ in string]?: any }> {
     return $Call.ByID(2031617692, zipPath, filePath).then(($result: any) => {
-        return $$createType0($result);
+        return $$createType2($result);
     });
 }
 
+/**
+ * HandleHotkey 处理全局热键回调：切换 BgmBar 显示/隐藏
+ */
+export function HandleHotkey(): $CancellablePromise<void> {
+    return $Call.ByID(420101833);
+}
+
 /**
  * InstallUpdate 安装更新包
  */
 export function InstallUpdate(installerPath: string, autoRestart: boolean): $CancellablePromise<{ [_ in string]?: any }> {
     return $Call.ByID(2443992793, installerPath, autoRestart).then(($result: any) => {
-        return $$createType0($result);
+        return $$createType2($result);
     });
 }
 
@@ -257,7 +290,7 @@ export function InstallUpdate(installerPath: string, autoRestart: boolean): $Can
  */
 export function InstallUpdateWithHash(installerPath: string, autoRestart: boolean, expectedHash: string, hashType: string): $CancellablePromise<{ [_ in string]?: any }> {
     return $Call.ByID(3787276601, installerPath, autoRestart, expectedHash, hashType).then(($result: any) => {
-        return $$createType0($result);
+        return $$createType2($result);
     });
 }
 
@@ -266,7 +299,7 @@ export function InstallUpdateWithHash(installerPath: string, autoRestart: boolea
  */
 export function ListDir(path: string): $CancellablePromise<{ [_ in string]?: any }[]> {
     return $Call.ByID(2120475736, path).then(($result: any) => {
-        return $$createType3($result);
+        return $$createType5($result);
     });
 }
 
@@ -275,7 +308,13 @@ export function ListDir(path: string): $CancellablePromise<{ [_ in string]?: any
  */
 export function ListZipContents(zipPath: string): $CancellablePromise<{ [_ in string]?: any }[]> {
     return $Call.ByID(3013109042, zipPath).then(($result: any) => {
-        return $$createType3($result);
+        return $$createType5($result);
+    });
+}
+
+export function LoadConnectionProfiles(): $CancellablePromise<{ [_ in string]?: any }[]> {
+    return $Call.ByID(454364767).then(($result: any) => {
+        return $$createType5($result);
     });
 }
 
@@ -286,6 +325,129 @@ export function OpenPath(path: string): $CancellablePromise<void> {
     return $Call.ByID(1591734570, path);
 }
 
+export function OssConnect(req: $models.OssConnectRequest): $CancellablePromise<string> {
+    return $Call.ByID(3667022538, req);
+}
+
+/**
+ * OssCreateDir OSS 创建目录
+ */
+export function OssCreateDir(connID: string, dirPath: string): $CancellablePromise<filesystem$0.FileOperationResult | null> {
+    return $Call.ByID(605668951, connID, dirPath).then(($result: any) => {
+        return $$createType4($result);
+    });
+}
+
+/**
+ * OssCreateFile OSS 创建文件
+ */
+export function OssCreateFile(connID: string, filePath: string): $CancellablePromise<filesystem$0.FileOperationResult | null> {
+    return $Call.ByID(4148593430, connID, filePath).then(($result: any) => {
+        return $$createType4($result);
+    });
+}
+
+/**
+ * OssDeletePath OSS 删除
+ */
+export function OssDeletePath(connID: string, key: string): $CancellablePromise<filesystem$0.FileOperationResult | null> {
+    return $Call.ByID(4285234744, connID, key).then(($result: any) => {
+        return $$createType4($result);
+    });
+}
+
+/**
+ * OssDisconnect 断开 OSS 连接
+ */
+export function OssDisconnect(connID: string): $CancellablePromise<void> {
+    return $Call.ByID(3427288622, connID);
+}
+
+/**
+ * OssDownloadSiteForPreview OSS 下载 HTML 及其引用的资源到临时目录
+ */
+export function OssDownloadSiteForPreview(connID: string, key: string): $CancellablePromise<string> {
+    return $Call.ByID(1387550222, connID, key);
+}
+
+/**
+ * OssDownloadToTemp OSS 下载到临时文件
+ */
+export function OssDownloadToTemp(connID: string, key: string): $CancellablePromise<string> {
+    return $Call.ByID(370656471, connID, key);
+}
+
+/**
+ * OssDownloadToTempCached 带缓存的 OSS 下载（命中缓存直接返回本地路径）
+ */
+export function OssDownloadToTempCached(connID: string, key: string, fileSize: number, modTime: string): $CancellablePromise<string> {
+    return $Call.ByID(1312098141, connID, key, fileSize, modTime);
+}
+
+/**
+ * OssGetCommonPaths OSS 获取常用路径
+ */
+export function OssGetCommonPaths(connID: string): $CancellablePromise<{ [_ in string]?: string }> {
+    return $Call.ByID(3525024115, connID).then(($result: any) => {
+        return $$createType6($result);
+    });
+}
+
+/**
+ * OssGetFileInfo OSS 获取文件信息
+ */
+export function OssGetFileInfo(connID: string, key: string): $CancellablePromise<{ [_ in string]?: any }> {
+    return $Call.ByID(852430614, connID, key).then(($result: any) => {
+        return $$createType2($result);
+    });
+}
+
+/**
+ * OssGetSignedURL OSS 获取预签名 URL
+ */
+export function OssGetSignedURL(connID: string, key: string): $CancellablePromise<string> {
+    return $Call.ByID(1344953417, connID, key);
+}
+
+/**
+ * OssListDir OSS 列出目录
+ */
+export function OssListDir(connID: string, prefix: string): $CancellablePromise<{ [_ in string]?: any }[]> {
+    return $Call.ByID(3013212019, connID, prefix).then(($result: any) => {
+        return $$createType5($result);
+    });
+}
+
+/**
+ * OssReadFile OSS 读取文件
+ */
+export function OssReadFile(connID: string, key: string): $CancellablePromise<string> {
+    return $Call.ByID(1629576606, connID, key);
+}
+
+/**
+ * OssRenamePath OSS 重命名
+ */
+export function OssRenamePath(req: $models.OssRenamePathRequest): $CancellablePromise<filesystem$0.FileOperationResult | null> {
+    return $Call.ByID(4218061693, req).then(($result: any) => {
+        return $$createType4($result);
+    });
+}
+
+/**
+ * OssWriteBase64File OSS 写入 base64 编码文件
+ */
+export function OssWriteBase64File(connID: string, key: string, base64Content: string): $CancellablePromise<void> {
+    return $Call.ByID(1772140162, connID, key, base64Content);
+}
+
+/**
+ * OssWriteFile OSS 写入文件
+ */
+export function OssWriteFile(connID: string, key: string, content: string): $CancellablePromise<void> {
+    return $Call.ByID(39773277, connID, key, content);
+}
+
 /**
  * ReadFile 读取文件
  */
@@ -293,6 +455,13 @@ export function ReadFile(path: string): $CancellablePromise<string> {
     return $Call.ByID(1160596971, path);
 }
 
+/**
+ * RegisterGlobalHotkey 注册 Ctrl+Shift+B 全局热键（需在窗口创建后调用）
+ */
+export function RegisterGlobalHotkey(): $CancellablePromise<void> {
+    return $Call.ByID(2089930789);
+}
+
 /**
  * Reload 重新加载窗口（用于菜单项）
  */
@@ -305,7 +474,7 @@ export function Reload(): $CancellablePromise<void> {
  */
 export function RenamePath(req: $models.RenamePathRequest): $CancellablePromise<filesystem$0.FileOperationResult | null> {
     return $Call.ByID(1959759948, req).then(($result: any) => {
-        return $$createType2($result);
+        return $$createType4($result);
     });
 }
 
@@ -314,7 +483,7 @@ export function RenamePath(req: $models.RenamePathRequest): $CancellablePromise<
  */
 export function ResolveShortcut(lnkPath: string): $CancellablePromise<{ [_ in string]?: any }> {
     return $Call.ByID(4051288361, lnkPath).then(($result: any) => {
-        return $$createType0($result);
+        return $$createType2($result);
     });
 }
 
@@ -330,7 +499,7 @@ export function RestoreFromRecycleBin(recyclePath: string): $CancellablePromise<
  */
 export function SaveAppConfig(req: $models.SaveAppConfigRequest): $CancellablePromise<{ [_ in string]?: any }> {
     return $Call.ByID(1942219977, req).then(($result: any) => {
-        return $$createType0($result);
+        return $$createType2($result);
     });
 }
 
@@ -341,6 +510,12 @@ export function SaveBase64File(req: $models.SaveBase64FileRequest): $Cancellable
     return $Call.ByID(1355120553, req);
 }
 
+export function SaveConnectionProfile(req: $models.SaveProfileRequest): $CancellablePromise<{ [_ in string]?: any }> {
+    return $Call.ByID(3622685069, req).then(($result: any) => {
+        return $$createType2($result);
+    });
+}
+
 /**
  * SelectPDFSaveDirectory 选择PDF保存目录
  */
@@ -360,7 +535,7 @@ export function SetMainWindow(w: application$0.WebviewWindow | null): $Cancellab
  */
 export function SetUpdateConfig(autoCheckEnabled: boolean, checkIntervalMinutes: number, checkURL: string): $CancellablePromise<{ [_ in string]?: any }> {
     return $Call.ByID(4271731092, autoCheckEnabled, checkIntervalMinutes, checkURL).then(($result: any) => {
-        return $$createType0($result);
+        return $$createType2($result);
     });
 }
 
@@ -371,15 +546,157 @@ export function SetWindowTitleBarColor(color: number, isDark: boolean): $Cancell
     return $Call.ByID(1570627619, color, isDark);
 }
 
+/**
+ * SftpConnect 建立 SFTP 连接，返回连接标识符 connID
+ */
+export function SftpConnect(req: $models.SftpConnectRequest): $CancellablePromise<string> {
+    return $Call.ByID(2742828454, req);
+}
+
+/**
+ * SftpCreateDir SFTP 创建目录
+ */
+export function SftpCreateDir(connID: string, dirPath: string): $CancellablePromise<filesystem$0.FileOperationResult | null> {
+    return $Call.ByID(586600875, connID, dirPath).then(($result: any) => {
+        return $$createType4($result);
+    });
+}
+
+/**
+ * SftpCreateFile SFTP 创建文件
+ */
+export function SftpCreateFile(connID: string, filePath: string): $CancellablePromise<filesystem$0.FileOperationResult | null> {
+    return $Call.ByID(623026146, connID, filePath).then(($result: any) => {
+        return $$createType4($result);
+    });
+}
+
+/**
+ * SftpDeletePath SFTP 删除文件或目录
+ */
+export function SftpDeletePath(connID: string, filePath: string): $CancellablePromise<filesystem$0.FileOperationResult | null> {
+    return $Call.ByID(1833619836, connID, filePath).then(($result: any) => {
+        return $$createType4($result);
+    });
+}
+
+/**
+ * SftpDisconnect 断开 SFTP 连接
+ */
+export function SftpDisconnect(connID: string): $CancellablePromise<void> {
+    return $Call.ByID(597628874, connID);
+}
+
+/**
+ * SftpDownloadSiteForPreview 下载 HTML 及其网站资源到本地临时目录
+ */
+export function SftpDownloadSiteForPreview(connID: string, remotePath: string): $CancellablePromise<string> {
+    return $Call.ByID(1591575570, connID, remotePath);
+}
+
+/**
+ * SftpDownloadToTemp 下载远程文件到本地临时目录（用于预览）
+ */
+export function SftpDownloadToTemp(connID: string, remotePath: string): $CancellablePromise<string> {
+    return $Call.ByID(1159267603, connID, remotePath);
+}
+
+/**
+ * SftpDownloadToTempCached 带缓存的 SFTP 下载（命中缓存直接返回本地路径）
+ */
+export function SftpDownloadToTempCached(connID: string, remotePath: string, fileSize: number, modTime: string): $CancellablePromise<string> {
+    return $Call.ByID(3935472409, connID, remotePath, fileSize, modTime);
+}
+
+/**
+ * SftpGetCommonPaths 获取 SFTP 远程主机常用路径
+ */
+export function SftpGetCommonPaths(connID: string): $CancellablePromise<{ [_ in string]?: string }> {
+    return $Call.ByID(2874386183, connID).then(($result: any) => {
+        return $$createType6($result);
+    });
+}
+
+/**
+ * SftpGetFileInfo SFTP 获取文件信息
+ */
+export function SftpGetFileInfo(connID: string, filePath: string): $CancellablePromise<{ [_ in string]?: any }> {
+    return $Call.ByID(1959840482, connID, filePath).then(($result: any) => {
+        return $$createType2($result);
+    });
+}
+
+/**
+ * SftpGetSystemInfo 获取 SFTP 远程主机系统信息（CPU/内存/磁盘）
+ */
+export function SftpGetSystemInfo(connID: string): $CancellablePromise<{ [_ in string]?: any }> {
+    return $Call.ByID(1950143653, connID).then(($result: any) => {
+        return $$createType2($result);
+    });
+}
+
+/**
+ * SftpListDir SFTP 列出目录
+ */
+export function SftpListDir(connID: string, dirPath: string): $CancellablePromise<{ [_ in string]?: any }[]> {
+    return $Call.ByID(2061863855, connID, dirPath).then(($result: any) => {
+        return $$createType5($result);
+    });
+}
+
+/**
+ * SftpReadFile SFTP 读取文件内容
+ */
+export function SftpReadFile(connID: string, filePath: string): $CancellablePromise<string> {
+    return $Call.ByID(3068590994, connID, filePath);
+}
+
+/**
+ * SftpRenamePath SFTP 重命名文件或目录
+ */
+export function SftpRenamePath(req: $models.SftpRenamePathRequest): $CancellablePromise<filesystem$0.FileOperationResult | null> {
+    return $Call.ByID(183173937, req).then(($result: any) => {
+        return $$createType4($result);
+    });
+}
+
+/**
+ * SftpWriteBase64File SFTP 写入 base64 编码的二进制文件（粘贴图片等）
+ */
+export function SftpWriteBase64File(sessionID: string, filePath: string, base64Content: string): $CancellablePromise<void> {
+    return $Call.ByID(139141998, sessionID, filePath, base64Content);
+}
+
+/**
+ * SftpWriteFile SFTP 写入文件
+ */
+export function SftpWriteFile(req: $models.SftpWriteFileRequest): $CancellablePromise<void> {
+    return $Call.ByID(2401472593, req);
+}
+
+/**
+ * UnwatchFile 停止监听文件变化
+ */
+export function UnwatchFile(): $CancellablePromise<void> {
+    return $Call.ByID(3006906623);
+}
+
 /**
  * VerifyUpdateFile 验证更新文件哈希值
  */
 export function VerifyUpdateFile(filePath: string, expectedHash: string, hashType: string): $CancellablePromise<{ [_ in string]?: any }> {
     return $Call.ByID(2181909867, filePath, expectedHash, hashType).then(($result: any) => {
-        return $$createType0($result);
+        return $$createType2($result);
     });
 }
 
+/**
+ * WatchFile 开始监听指定文件的变化，变化时发送 file-changed 事件
+ */
+export function WatchFile(path: string): $CancellablePromise<void> {
+    return $Call.ByID(325055910, path);
+}
+
 /**
  * WindowClose 关闭窗口
  */
@@ -423,8 +740,10 @@ export function WriteFile(req: $models.WriteFileRequest): $CancellablePromise<vo
 }
 
 // Private type creation functions
-const $$createType0 = $Create.Map($Create.Any, $Create.Any);
-const $$createType1 = filesystem$0.FileOperationResult.createFrom;
-const $$createType2 = $Create.Nullable($$createType1);
-const $$createType3 = $Create.Array($$createType0);
-const $$createType4 = $Create.Map($Create.Any, $Create.Any);
+const $$createType0 = $models.BgmPlaylistItem.createFrom;
+const $$createType1 = $Create.Array($$createType0);
+const $$createType2 = $Create.Map($Create.Any, $Create.Any);
+const $$createType3 = filesystem$0.FileOperationResult.createFrom;
+const $$createType4 = $Create.Nullable($$createType3);
+const $$createType5 = $Create.Array($$createType2);
+const $$createType6 = $Create.Map($Create.Any, $Create.Any);
diff --git a/frontend/src/wailsjs/v3-bindings/u-desk/index.ts b/frontend/src/wailsjs/v3-bindings/u-desk/index.ts
index cd4a868..8e6f2ce 100644
--- a/frontend/src/wailsjs/v3-bindings/u-desk/index.ts
+++ b/frontend/src/wailsjs/v3-bindings/u-desk/index.ts
@@ -7,8 +7,15 @@ export {
 };
 
 export {
+    BgmPlaylistItem,
+    OssConnectRequest,
+    OssRenamePathRequest,
     RenamePathRequest,
     SaveAppConfigRequest,
     SaveBase64FileRequest,
+    SaveProfileRequest,
+    SftpConnectRequest,
+    SftpRenamePathRequest,
+    SftpWriteFileRequest,
     WriteFileRequest
 } from "./models.js";
diff --git a/frontend/src/wailsjs/v3-bindings/u-desk/models.ts b/frontend/src/wailsjs/v3-bindings/u-desk/models.ts
index 8666d8e..01abeb1 100644
--- a/frontend/src/wailsjs/v3-bindings/u-desk/models.ts
+++ b/frontend/src/wailsjs/v3-bindings/u-desk/models.ts
@@ -9,6 +9,103 @@ import { Create as $Create } from "@wailsio/runtime";
 // @ts-ignore: Unused imports
 import * as api$0 from "./internal/api/models.js";
 
+/**
+ * BgmPlaylistItem 播放列表条目
+ */
+export class BgmPlaylistItem {
+    "name": string;
+    "path": string;
+    "profile_id": string;
+
+    /** Creates a new BgmPlaylistItem instance. */
+    constructor($$source: Partial<BgmPlaylistItem> = {}) {
+        if (!("name" in $$source)) {
+            this["name"] = "";
+        }
+        if (!("path" in $$source)) {
+            this["path"] = "";
+        }
+        if (!("profile_id" in $$source)) {
+            this["profile_id"] = "";
+        }
+
+        Object.assign(this, $$source);
+    }
+
+    /**
+     * Creates a new BgmPlaylistItem instance from a string or object.
+     */
+    static createFrom($$source: any = {}): BgmPlaylistItem {
+        let $$parsedSource = typeof $$source === 'string' ? JSON.parse($$source) : $$source;
+        return new BgmPlaylistItem($$parsedSource as Partial<BgmPlaylistItem>);
+    }
+}
+
+export class OssConnectRequest {
+    "provider": string;
+    "access_key": string;
+    "secret_key": string;
+    "endpoint": string;
+
+    /** Creates a new OssConnectRequest instance. */
+    constructor($$source: Partial<OssConnectRequest> = {}) {
+        if (!("provider" in $$source)) {
+            this["provider"] = "";
+        }
+        if (!("access_key" in $$source)) {
+            this["access_key"] = "";
+        }
+        if (!("secret_key" in $$source)) {
+            this["secret_key"] = "";
+        }
+        if (!("endpoint" in $$source)) {
+            this["endpoint"] = "";
+        }
+
+        Object.assign(this, $$source);
+    }
+
+    /**
+     * Creates a new OssConnectRequest instance from a string or object.
+     */
+    static createFrom($$source: any = {}): OssConnectRequest {
+        let $$parsedSource = typeof $$source === 'string' ? JSON.parse($$source) : $$source;
+        return new OssConnectRequest($$parsedSource as Partial<OssConnectRequest>);
+    }
+}
+
+/**
+ * OssRenamePathRequest OSS 重命名请求
+ */
+export class OssRenamePathRequest {
+    "conn_id": string;
+    "old_path": string;
+    "new_path": string;
+
+    /** Creates a new OssRenamePathRequest instance. */
+    constructor($$source: Partial<OssRenamePathRequest> = {}) {
+        if (!("conn_id" in $$source)) {
+            this["conn_id"] = "";
+        }
+        if (!("old_path" in $$source)) {
+            this["old_path"] = "";
+        }
+        if (!("new_path" in $$source)) {
+            this["new_path"] = "";
+        }
+
+        Object.assign(this, $$source);
+    }
+
+    /**
+     * Creates a new OssRenamePathRequest instance from a string or object.
+     */
+    static createFrom($$source: any = {}): OssRenamePathRequest {
+        let $$parsedSource = typeof $$source === 'string' ? JSON.parse($$source) : $$source;
+        return new OssRenamePathRequest($$parsedSource as Partial<OssRenamePathRequest>);
+    }
+}
+
 /**
  * RenamePathRequest 重命名文件或目录请求结构体
  */
@@ -109,6 +206,195 @@ export class SaveBase64FileRequest {
     }
 }
 
+export class SaveProfileRequest {
+    "id": number | null;
+    "name": string;
+    "host": string;
+    "port": number;
+    "username": string;
+    "password": string;
+    "key_path": string;
+    "type": string;
+    "provider": string;
+    "token": string;
+    "access_key": string;
+    "secret_key": string;
+    "bucket": string;
+    "region": string;
+    "endpoint": string;
+    "last_connected": number | null;
+
+    /** Creates a new SaveProfileRequest instance. */
+    constructor($$source: Partial<SaveProfileRequest> = {}) {
+        if (!("id" in $$source)) {
+            this["id"] = null;
+        }
+        if (!("name" in $$source)) {
+            this["name"] = "";
+        }
+        if (!("host" in $$source)) {
+            this["host"] = "";
+        }
+        if (!("port" in $$source)) {
+            this["port"] = 0;
+        }
+        if (!("username" in $$source)) {
+            this["username"] = "";
+        }
+        if (!("password" in $$source)) {
+            this["password"] = "";
+        }
+        if (!("key_path" in $$source)) {
+            this["key_path"] = "";
+        }
+        if (!("type" in $$source)) {
+            this["type"] = "";
+        }
+        if (!("provider" in $$source)) {
+            this["provider"] = "";
+        }
+        if (!("token" in $$source)) {
+            this["token"] = "";
+        }
+        if (!("access_key" in $$source)) {
+            this["access_key"] = "";
+        }
+        if (!("secret_key" in $$source)) {
+            this["secret_key"] = "";
+        }
+        if (!("bucket" in $$source)) {
+            this["bucket"] = "";
+        }
+        if (!("region" in $$source)) {
+            this["region"] = "";
+        }
+        if (!("endpoint" in $$source)) {
+            this["endpoint"] = "";
+        }
+        if (!("last_connected" in $$source)) {
+            this["last_connected"] = null;
+        }
+
+        Object.assign(this, $$source);
+    }
+
+    /**
+     * Creates a new SaveProfileRequest instance from a string or object.
+     */
+    static createFrom($$source: any = {}): SaveProfileRequest {
+        let $$parsedSource = typeof $$source === 'string' ? JSON.parse($$source) : $$source;
+        return new SaveProfileRequest($$parsedSource as Partial<SaveProfileRequest>);
+    }
+}
+
+/**
+ * SftpConnectRequest SFTP 连接请求
+ */
+export class SftpConnectRequest {
+    "host": string;
+    "port": number;
+    "username": string;
+    "password": string;
+    "key_path": string;
+    "key_passphrase": string;
+
+    /** Creates a new SftpConnectRequest instance. */
+    constructor($$source: Partial<SftpConnectRequest> = {}) {
+        if (!("host" in $$source)) {
+            this["host"] = "";
+        }
+        if (!("port" in $$source)) {
+            this["port"] = 0;
+        }
+        if (!("username" in $$source)) {
+            this["username"] = "";
+        }
+        if (!("password" in $$source)) {
+            this["password"] = "";
+        }
+        if (!("key_path" in $$source)) {
+            this["key_path"] = "";
+        }
+        if (!("key_passphrase" in $$source)) {
+            this["key_passphrase"] = "";
+        }
+
+        Object.assign(this, $$source);
+    }
+
+    /**
+     * Creates a new SftpConnectRequest instance from a string or object.
+     */
+    static createFrom($$source: any = {}): SftpConnectRequest {
+        let $$parsedSource = typeof $$source === 'string' ? JSON.parse($$source) : $$source;
+        return new SftpConnectRequest($$parsedSource as Partial<SftpConnectRequest>);
+    }
+}
+
+/**
+ * SftpRenamePathRequest SFTP 重命名请求
+ */
+export class SftpRenamePathRequest {
+    "session_id": string;
+    "old_path": string;
+    "new_path": string;
+
+    /** Creates a new SftpRenamePathRequest instance. */
+    constructor($$source: Partial<SftpRenamePathRequest> = {}) {
+        if (!("session_id" in $$source)) {
+            this["session_id"] = "";
+        }
+        if (!("old_path" in $$source)) {
+            this["old_path"] = "";
+        }
+        if (!("new_path" in $$source)) {
+            this["new_path"] = "";
+        }
+
+        Object.assign(this, $$source);
+    }
+
+    /**
+     * Creates a new SftpRenamePathRequest instance from a string or object.
+     */
+    static createFrom($$source: any = {}): SftpRenamePathRequest {
+        let $$parsedSource = typeof $$source === 'string' ? JSON.parse($$source) : $$source;
+        return new SftpRenamePathRequest($$parsedSource as Partial<SftpRenamePathRequest>);
+    }
+}
+
+/**
+ * SftpWriteFileRequest SFTP 写入请求
+ */
+export class SftpWriteFileRequest {
+    "session_id": string;
+    "path": string;
+    "content": string;
+
+    /** Creates a new SftpWriteFileRequest instance. */
+    constructor($$source: Partial<SftpWriteFileRequest> = {}) {
+        if (!("session_id" in $$source)) {
+            this["session_id"] = "";
+        }
+        if (!("path" in $$source)) {
+            this["path"] = "";
+        }
+        if (!("content" in $$source)) {
+            this["content"] = "";
+        }
+
+        Object.assign(this, $$source);
+    }
+
+    /**
+     * Creates a new SftpWriteFileRequest instance from a string or object.
+     */
+    static createFrom($$source: any = {}): SftpWriteFileRequest {
+        let $$parsedSource = typeof $$source === 'string' ? JSON.parse($$source) : $$source;
+        return new SftpWriteFileRequest($$parsedSource as Partial<SftpWriteFileRequest>);
+    }
+}
+
 /**
  * WriteFileRequest 写入文件请求结构体
  */
diff --git a/frontend/src/wailsjs/wailsjs/go/main/App.d.ts b/frontend/src/wailsjs/wailsjs/go/main/App.d.ts
deleted file mode 100644
index 4716e48..0000000
--- a/frontend/src/wailsjs/wailsjs/go/main/App.d.ts
+++ /dev/null
@@ -1,98 +0,0 @@
-// Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
-// This file is automatically generated. DO NOT EDIT
-import {filesystem} from '../models';
-import {main} from '../models';
-
-export function CheckUpdate():Promise<Record<string, any>>;
-
-export function ClearCache():Promise<void>;
-
-export function CreateDir(arg1:string):Promise<filesystem.FileOperationResult>;
-
-export function CreateFile(arg1:string):Promise<filesystem.FileOperationResult>;
-
-export function DeletePath(arg1:string):Promise<filesystem.FileOperationResult>;
-
-export function DeletePermanently(arg1:string):Promise<void>;
-
-export function DetectFileTypeByContent(arg1:string):Promise<Record<string, any>>;
-
-export function DownloadUpdate(arg1:string):Promise<Record<string, any>>;
-
-export function EmptyRecycleBin():Promise<void>;
-
-export function ExportPDF(arg1:string,arg2:string,arg3:string,arg4:number,arg5:number,arg6:number):Promise<Record<string, any>>;
-
-export function ExtractFileFromZip(arg1:string,arg2:string):Promise<string>;
-
-export function ExtractFileFromZipToTemp(arg1:string,arg2:string):Promise<string>;
-
-export function GetAppConfig():Promise<Record<string, any>>;
-
-export function GetAuditLogs(arg1:number):Promise<Array<Record<string, any>>>;
-
-export function GetCPUInfo():Promise<Record<string, any>>;
-
-export function GetCommonPaths():Promise<Record<string, string>>;
-
-export function GetCurrentVersion():Promise<Record<string, any>>;
-
-export function GetDiskInfo():Promise<Array<Record<string, any>>>;
-
-export function GetEnvVars():Promise<Record<string, string>>;
-
-export function GetFileInfo(arg1:string):Promise<Record<string, any>>;
-
-export function GetFileServerURL():Promise<string>;
-
-export function GetMemoryInfo():Promise<Record<string, any>>;
-
-export function GetRecycleBinEntries():Promise<Array<Record<string, any>>>;
-
-export function GetSystemInfo():Promise<Record<string, any>>;
-
-export function GetUpdateConfig():Promise<Record<string, any>>;
-
-export function GetZipFileInfo(arg1:string,arg2:string):Promise<Record<string, any>>;
-
-export function InstallUpdate(arg1:string,arg2:boolean):Promise<Record<string, any>>;
-
-export function InstallUpdateWithHash(arg1:string,arg2:boolean,arg3:string,arg4:string):Promise<Record<string, any>>;
-
-export function ListDir(arg1:string):Promise<Array<Record<string, any>>>;
-
-export function ListZipContents(arg1:string):Promise<Array<Record<string, any>>>;
-
-export function OpenPath(arg1:string):Promise<void>;
-
-export function ReadFile(arg1:string):Promise<string>;
-
-export function Reload():Promise<void>;
-
-export function RenamePath(arg1:main.RenamePathRequest):Promise<filesystem.FileOperationResult>;
-
-export function ResolveShortcut(arg1:string):Promise<Record<string, any>>;
-
-export function RestoreFromRecycleBin(arg1:string):Promise<void>;
-
-export function SaveAppConfig(arg1:main.SaveAppConfigRequest):Promise<Record<string, any>>;
-
-export function SaveBase64File(arg1:main.SaveBase64FileRequest):Promise<void>;
-
-export function SelectPDFSaveDirectory():Promise<string>;
-
-export function SetUpdateConfig(arg1:boolean,arg2:number,arg3:string):Promise<Record<string, any>>;
-
-export function VerifyUpdateFile(arg1:string,arg2:string,arg3:string):Promise<Record<string, any>>;
-
-export function WindowClose():Promise<void>;
-
-export function WindowIsMaximized():Promise<boolean>;
-
-export function WindowMaximize():Promise<void>;
-
-export function WindowMinimize():Promise<void>;
-
-export function WindowToggleAlwaysOnTop():Promise<boolean>;
-
-export function WriteFile(arg1:main.WriteFileRequest):Promise<void>;
diff --git a/frontend/src/wailsjs/wailsjs/go/main/App.js b/frontend/src/wailsjs/wailsjs/go/main/App.js
deleted file mode 100644
index 1eae145..0000000
--- a/frontend/src/wailsjs/wailsjs/go/main/App.js
+++ /dev/null
@@ -1,191 +0,0 @@
-// @ts-check
-// Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
-// This file is automatically generated. DO NOT EDIT
-
-export function CheckUpdate() {
-  return window['go']['main']['App']['CheckUpdate']();
-}
-
-export function ClearCache() {
-  return window['go']['main']['App']['ClearCache']();
-}
-
-export function CreateDir(arg1) {
-  return window['go']['main']['App']['CreateDir'](arg1);
-}
-
-export function CreateFile(arg1) {
-  return window['go']['main']['App']['CreateFile'](arg1);
-}
-
-export function DeletePath(arg1) {
-  return window['go']['main']['App']['DeletePath'](arg1);
-}
-
-export function DeletePermanently(arg1) {
-  return window['go']['main']['App']['DeletePermanently'](arg1);
-}
-
-export function DetectFileTypeByContent(arg1) {
-  return window['go']['main']['App']['DetectFileTypeByContent'](arg1);
-}
-
-export function DownloadUpdate(arg1) {
-  return window['go']['main']['App']['DownloadUpdate'](arg1);
-}
-
-export function EmptyRecycleBin() {
-  return window['go']['main']['App']['EmptyRecycleBin']();
-}
-
-export function ExportPDF(arg1, arg2, arg3, arg4, arg5, arg6) {
-  return window['go']['main']['App']['ExportPDF'](arg1, arg2, arg3, arg4, arg5, arg6);
-}
-
-export function ExtractFileFromZip(arg1, arg2) {
-  return window['go']['main']['App']['ExtractFileFromZip'](arg1, arg2);
-}
-
-export function ExtractFileFromZipToTemp(arg1, arg2) {
-  return window['go']['main']['App']['ExtractFileFromZipToTemp'](arg1, arg2);
-}
-
-export function GetAppConfig() {
-  return window['go']['main']['App']['GetAppConfig']();
-}
-
-export function GetAuditLogs(arg1) {
-  return window['go']['main']['App']['GetAuditLogs'](arg1);
-}
-
-export function GetCPUInfo() {
-  return window['go']['main']['App']['GetCPUInfo']();
-}
-
-export function GetCommonPaths() {
-  return window['go']['main']['App']['GetCommonPaths']();
-}
-
-export function GetCurrentVersion() {
-  return window['go']['main']['App']['GetCurrentVersion']();
-}
-
-export function GetDiskInfo() {
-  return window['go']['main']['App']['GetDiskInfo']();
-}
-
-export function GetEnvVars() {
-  return window['go']['main']['App']['GetEnvVars']();
-}
-
-export function GetFileInfo(arg1) {
-  return window['go']['main']['App']['GetFileInfo'](arg1);
-}
-
-export function GetFileServerURL() {
-  return window['go']['main']['App']['GetFileServerURL']();
-}
-
-export function GetMemoryInfo() {
-  return window['go']['main']['App']['GetMemoryInfo']();
-}
-
-export function GetRecycleBinEntries() {
-  return window['go']['main']['App']['GetRecycleBinEntries']();
-}
-
-export function GetSystemInfo() {
-  return window['go']['main']['App']['GetSystemInfo']();
-}
-
-export function GetUpdateConfig() {
-  return window['go']['main']['App']['GetUpdateConfig']();
-}
-
-export function GetZipFileInfo(arg1, arg2) {
-  return window['go']['main']['App']['GetZipFileInfo'](arg1, arg2);
-}
-
-export function InstallUpdate(arg1, arg2) {
-  return window['go']['main']['App']['InstallUpdate'](arg1, arg2);
-}
-
-export function InstallUpdateWithHash(arg1, arg2, arg3, arg4) {
-  return window['go']['main']['App']['InstallUpdateWithHash'](arg1, arg2, arg3, arg4);
-}
-
-export function ListDir(arg1) {
-  return window['go']['main']['App']['ListDir'](arg1);
-}
-
-export function ListZipContents(arg1) {
-  return window['go']['main']['App']['ListZipContents'](arg1);
-}
-
-export function OpenPath(arg1) {
-  return window['go']['main']['App']['OpenPath'](arg1);
-}
-
-export function ReadFile(arg1) {
-  return window['go']['main']['App']['ReadFile'](arg1);
-}
-
-export function Reload() {
-  return window['go']['main']['App']['Reload']();
-}
-
-export function RenamePath(arg1) {
-  return window['go']['main']['App']['RenamePath'](arg1);
-}
-
-export function ResolveShortcut(arg1) {
-  return window['go']['main']['App']['ResolveShortcut'](arg1);
-}
-
-export function RestoreFromRecycleBin(arg1) {
-  return window['go']['main']['App']['RestoreFromRecycleBin'](arg1);
-}
-
-export function SaveAppConfig(arg1) {
-  return window['go']['main']['App']['SaveAppConfig'](arg1);
-}
-
-export function SaveBase64File(arg1) {
-  return window['go']['main']['App']['SaveBase64File'](arg1);
-}
-
-export function SelectPDFSaveDirectory() {
-  return window['go']['main']['App']['SelectPDFSaveDirectory']();
-}
-
-export function SetUpdateConfig(arg1, arg2, arg3) {
-  return window['go']['main']['App']['SetUpdateConfig'](arg1, arg2, arg3);
-}
-
-export function VerifyUpdateFile(arg1, arg2, arg3) {
-  return window['go']['main']['App']['VerifyUpdateFile'](arg1, arg2, arg3);
-}
-
-export function WindowClose() {
-  return window['go']['main']['App']['WindowClose']();
-}
-
-export function WindowIsMaximized() {
-  return window['go']['main']['App']['WindowIsMaximized']();
-}
-
-export function WindowMaximize() {
-  return window['go']['main']['App']['WindowMaximize']();
-}
-
-export function WindowMinimize() {
-  return window['go']['main']['App']['WindowMinimize']();
-}
-
-export function WindowToggleAlwaysOnTop() {
-  return window['go']['main']['App']['WindowToggleAlwaysOnTop']();
-}
-
-export function WriteFile(arg1) {
-  return window['go']['main']['App']['WriteFile'](arg1);
-}
diff --git a/frontend/src/wailsjs/wailsjs/go/models.ts b/frontend/src/wailsjs/wailsjs/go/models.ts
deleted file mode 100644
index 838cde3..0000000
--- a/frontend/src/wailsjs/wailsjs/go/models.ts
+++ /dev/null
@@ -1,137 +0,0 @@
-export namespace api {
-	
-	export class AppTabDefinition {
-	    key: string;
-	    title: string;
-	    visible: boolean;
-	    enabled: boolean;
-	
-	    static createFrom(source: any = {}) {
-	        return new AppTabDefinition(source);
-	    }
-	
-	    constructor(source: any = {}) {
-	        if ('string' === typeof source) source = JSON.parse(source);
-	        this.key = source["key"];
-	        this.title = source["title"];
-	        this.visible = source["visible"];
-	        this.enabled = source["enabled"];
-	    }
-	}
-
-}
-
-export namespace filesystem {
-	
-	export class FileOperationResult {
-	    path: string;
-	    name: string;
-	    size: number;
-	    size_str?: string;
-	    is_dir: boolean;
-	    mod_time?: string;
-	    mode?: string;
-	    old_path?: string;
-	    deleted?: boolean;
-	
-	    static createFrom(source: any = {}) {
-	        return new FileOperationResult(source);
-	    }
-	
-	    constructor(source: any = {}) {
-	        if ('string' === typeof source) source = JSON.parse(source);
-	        this.path = source["path"];
-	        this.name = source["name"];
-	        this.size = source["size"];
-	        this.size_str = source["size_str"];
-	        this.is_dir = source["is_dir"];
-	        this.mod_time = source["mod_time"];
-	        this.mode = source["mode"];
-	        this.old_path = source["old_path"];
-	        this.deleted = source["deleted"];
-	    }
-	}
-
-}
-
-export namespace main {
-	
-	export class RenamePathRequest {
-	    oldPath: string;
-	    newPath: string;
-	
-	    static createFrom(source: any = {}) {
-	        return new RenamePathRequest(source);
-	    }
-	
-	    constructor(source: any = {}) {
-	        if ('string' === typeof source) source = JSON.parse(source);
-	        this.oldPath = source["oldPath"];
-	        this.newPath = source["newPath"];
-	    }
-	}
-	export class SaveAppConfigRequest {
-	    tabs: api.AppTabDefinition[];
-	    visibleTabs: string[];
-	    defaultTab: string;
-	
-	    static createFrom(source: any = {}) {
-	        return new SaveAppConfigRequest(source);
-	    }
-	
-	    constructor(source: any = {}) {
-	        if ('string' === typeof source) source = JSON.parse(source);
-	        this.tabs = this.convertValues(source["tabs"], api.AppTabDefinition);
-	        this.visibleTabs = source["visibleTabs"];
-	        this.defaultTab = source["defaultTab"];
-	    }
-	
-		convertValues(a: any, classs: any, asMap: boolean = false): any {
-		    if (!a) {
-		        return a;
-		    }
-		    if (a.slice && a.map) {
-		        return (a as any[]).map(elem => this.convertValues(elem, classs));
-		    } else if ("object" === typeof a) {
-		        if (asMap) {
-		            for (const key of Object.keys(a)) {
-		                a[key] = new classs(a[key]);
-		            }
-		            return a;
-		        }
-		        return new classs(a);
-		    }
-		    return a;
-		}
-	}
-	export class SaveBase64FileRequest {
-	    path: string;
-	    content: string;
-	
-	    static createFrom(source: any = {}) {
-	        return new SaveBase64FileRequest(source);
-	    }
-	
-	    constructor(source: any = {}) {
-	        if ('string' === typeof source) source = JSON.parse(source);
-	        this.path = source["path"];
-	        this.content = source["content"];
-	    }
-	}
-	export class WriteFileRequest {
-	    path: string;
-	    content: string;
-	
-	    static createFrom(source: any = {}) {
-	        return new WriteFileRequest(source);
-	    }
-	
-	    constructor(source: any = {}) {
-	        if ('string' === typeof source) source = JSON.parse(source);
-	        this.path = source["path"];
-	        this.content = source["content"];
-	    }
-	}
-
-}
-
diff --git a/frontend/src/wailsjs/wailsjs/runtime/package.json b/frontend/src/wailsjs/wailsjs/runtime/package.json
deleted file mode 100644
index 1e7c8a5..0000000
--- a/frontend/src/wailsjs/wailsjs/runtime/package.json
+++ /dev/null
@@ -1,24 +0,0 @@
-{
-  "name": "@wailsapp/runtime",
-  "version": "2.0.0",
-  "description": "Wails Javascript runtime library",
-  "main": "runtime.js",
-  "types": "runtime.d.ts",
-  "scripts": {
-  },
-  "repository": {
-    "type": "git",
-    "url": "git+https://github.com/wailsapp/wails.git"
-  },
-  "keywords": [
-    "Wails",
-    "Javascript",
-    "Go"
-  ],
-  "author": "Lea Anthony <lea.anthony@gmail.com>",
-  "license": "MIT",
-  "bugs": {
-    "url": "https://github.com/wailsapp/wails/issues"
-  },
-  "homepage": "https://github.com/wailsapp/wails#readme"
-}
diff --git a/frontend/src/wailsjs/wailsjs/runtime/runtime.d.ts b/frontend/src/wailsjs/wailsjs/runtime/runtime.d.ts
deleted file mode 100644
index 3bbea84..0000000
--- a/frontend/src/wailsjs/wailsjs/runtime/runtime.d.ts
+++ /dev/null
@@ -1,330 +0,0 @@
-/*
- _       __      _ __
-| |     / /___ _(_) /____
-| | /| / / __ `/ / / ___/
-| |/ |/ / /_/ / / (__  )
-|__/|__/\__,_/_/_/____/
-The electron alternative for Go
-(c) Lea Anthony 2019-present
-*/
-
-export interface Position {
-    x: number;
-    y: number;
-}
-
-export interface Size {
-    w: number;
-    h: number;
-}
-
-export interface Screen {
-    isCurrent: boolean;
-    isPrimary: boolean;
-    width : number
-    height : number
-}
-
-// Environment information such as platform, buildtype, ...
-export interface EnvironmentInfo {
-    buildType: string;
-    platform: string;
-    arch: string;
-}
-
-// [EventsEmit](https://wails.io/docs/reference/runtime/events#eventsemit)
-// emits the given event. Optional data may be passed with the event.
-// This will trigger any event listeners.
-export function EventsEmit(eventName: string, ...data: any): void;
-
-// [EventsOn](https://wails.io/docs/reference/runtime/events#eventson) sets up a listener for the given event name.
-export function EventsOn(eventName: string, callback: (...data: any) => void): () => void;
-
-// [EventsOnMultiple](https://wails.io/docs/reference/runtime/events#eventsonmultiple)
-// sets up a listener for the given event name, but will only trigger a given number times.
-export function EventsOnMultiple(eventName: string, callback: (...data: any) => void, maxCallbacks: number): () => void;
-
-// [EventsOnce](https://wails.io/docs/reference/runtime/events#eventsonce)
-// sets up a listener for the given event name, but will only trigger once.
-export function EventsOnce(eventName: string, callback: (...data: any) => void): () => void;
-
-// [EventsOff](https://wails.io/docs/reference/runtime/events#eventsoff)
-// unregisters the listener for the given event name.
-export function EventsOff(eventName: string, ...additionalEventNames: string[]): void;
-
-// [EventsOffAll](https://wails.io/docs/reference/runtime/events#eventsoffall)
-// unregisters all listeners.
-export function EventsOffAll(): void;
-
-// [LogPrint](https://wails.io/docs/reference/runtime/log#logprint)
-// logs the given message as a raw message
-export function LogPrint(message: string): void;
-
-// [LogTrace](https://wails.io/docs/reference/runtime/log#logtrace)
-// logs the given message at the `trace` log level.
-export function LogTrace(message: string): void;
-
-// [LogDebug](https://wails.io/docs/reference/runtime/log#logdebug)
-// logs the given message at the `debug` log level.
-export function LogDebug(message: string): void;
-
-// [LogError](https://wails.io/docs/reference/runtime/log#logerror)
-// logs the given message at the `error` log level.
-export function LogError(message: string): void;
-
-// [LogFatal](https://wails.io/docs/reference/runtime/log#logfatal)
-// logs the given message at the `fatal` log level.
-// The application will quit after calling this method.
-export function LogFatal(message: string): void;
-
-// [LogInfo](https://wails.io/docs/reference/runtime/log#loginfo)
-// logs the given message at the `info` log level.
-export function LogInfo(message: string): void;
-
-// [LogWarning](https://wails.io/docs/reference/runtime/log#logwarning)
-// logs the given message at the `warning` log level.
-export function LogWarning(message: string): void;
-
-// [WindowReload](https://wails.io/docs/reference/runtime/window#windowreload)
-// Forces a reload by the main application as well as connected browsers.
-export function WindowReload(): void;
-
-// [WindowReloadApp](https://wails.io/docs/reference/runtime/window#windowreloadapp)
-// Reloads the application frontend.
-export function WindowReloadApp(): void;
-
-// [WindowSetAlwaysOnTop](https://wails.io/docs/reference/runtime/window#windowsetalwaysontop)
-// Sets the window AlwaysOnTop or not on top.
-export function WindowSetAlwaysOnTop(b: boolean): void;
-
-// [WindowSetSystemDefaultTheme](https://wails.io/docs/next/reference/runtime/window#windowsetsystemdefaulttheme)
-// *Windows only*
-// Sets window theme to system default (dark/light).
-export function WindowSetSystemDefaultTheme(): void;
-
-// [WindowSetLightTheme](https://wails.io/docs/next/reference/runtime/window#windowsetlighttheme)
-// *Windows only*
-// Sets window to light theme.
-export function WindowSetLightTheme(): void;
-
-// [WindowSetDarkTheme](https://wails.io/docs/next/reference/runtime/window#windowsetdarktheme)
-// *Windows only*
-// Sets window to dark theme.
-export function WindowSetDarkTheme(): void;
-
-// [WindowCenter](https://wails.io/docs/reference/runtime/window#windowcenter)
-// Centers the window on the monitor the window is currently on.
-export function WindowCenter(): void;
-
-// [WindowSetTitle](https://wails.io/docs/reference/runtime/window#windowsettitle)
-// Sets the text in the window title bar.
-export function WindowSetTitle(title: string): void;
-
-// [WindowFullscreen](https://wails.io/docs/reference/runtime/window#windowfullscreen)
-// Makes the window full screen.
-export function WindowFullscreen(): void;
-
-// [WindowUnfullscreen](https://wails.io/docs/reference/runtime/window#windowunfullscreen)
-// Restores the previous window dimensions and position prior to full screen.
-export function WindowUnfullscreen(): void;
-
-// [WindowIsFullscreen](https://wails.io/docs/reference/runtime/window#windowisfullscreen)
-// Returns the state of the window, i.e. whether the window is in full screen mode or not.
-export function WindowIsFullscreen(): Promise<boolean>;
-
-// [WindowSetSize](https://wails.io/docs/reference/runtime/window#windowsetsize)
-// Sets the width and height of the window.
-export function WindowSetSize(width: number, height: number): void;
-
-// [WindowGetSize](https://wails.io/docs/reference/runtime/window#windowgetsize)
-// Gets the width and height of the window.
-export function WindowGetSize(): Promise<Size>;
-
-// [WindowSetMaxSize](https://wails.io/docs/reference/runtime/window#windowsetmaxsize)
-// Sets the maximum window size. Will resize the window if the window is currently larger than the given dimensions.
-// Setting a size of 0,0 will disable this constraint.
-export function WindowSetMaxSize(width: number, height: number): void;
-
-// [WindowSetMinSize](https://wails.io/docs/reference/runtime/window#windowsetminsize)
-// Sets the minimum window size. Will resize the window if the window is currently smaller than the given dimensions.
-// Setting a size of 0,0 will disable this constraint.
-export function WindowSetMinSize(width: number, height: number): void;
-
-// [WindowSetPosition](https://wails.io/docs/reference/runtime/window#windowsetposition)
-// Sets the window position relative to the monitor the window is currently on.
-export function WindowSetPosition(x: number, y: number): void;
-
-// [WindowGetPosition](https://wails.io/docs/reference/runtime/window#windowgetposition)
-// Gets the window position relative to the monitor the window is currently on.
-export function WindowGetPosition(): Promise<Position>;
-
-// [WindowHide](https://wails.io/docs/reference/runtime/window#windowhide)
-// Hides the window.
-export function WindowHide(): void;
-
-// [WindowShow](https://wails.io/docs/reference/runtime/window#windowshow)
-// Shows the window, if it is currently hidden.
-export function WindowShow(): void;
-
-// [WindowMaximise](https://wails.io/docs/reference/runtime/window#windowmaximise)
-// Maximises the window to fill the screen.
-export function WindowMaximise(): void;
-
-// [WindowToggleMaximise](https://wails.io/docs/reference/runtime/window#windowtogglemaximise)
-// Toggles between Maximised and UnMaximised.
-export function WindowToggleMaximise(): void;
-
-// [WindowUnmaximise](https://wails.io/docs/reference/runtime/window#windowunmaximise)
-// Restores the window to the dimensions and position prior to maximising.
-export function WindowUnmaximise(): void;
-
-// [WindowIsMaximised](https://wails.io/docs/reference/runtime/window#windowismaximised)
-// Returns the state of the window, i.e. whether the window is maximised or not.
-export function WindowIsMaximised(): Promise<boolean>;
-
-// [WindowMinimise](https://wails.io/docs/reference/runtime/window#windowminimise)
-// Minimises the window.
-export function WindowMinimise(): void;
-
-// [WindowUnminimise](https://wails.io/docs/reference/runtime/window#windowunminimise)
-// Restores the window to the dimensions and position prior to minimising.
-export function WindowUnminimise(): void;
-
-// [WindowIsMinimised](https://wails.io/docs/reference/runtime/window#windowisminimised)
-// Returns the state of the window, i.e. whether the window is minimised or not.
-export function WindowIsMinimised(): Promise<boolean>;
-
-// [WindowIsNormal](https://wails.io/docs/reference/runtime/window#windowisnormal)
-// Returns the state of the window, i.e. whether the window is normal or not.
-export function WindowIsNormal(): Promise<boolean>;
-
-// [WindowSetBackgroundColour](https://wails.io/docs/reference/runtime/window#windowsetbackgroundcolour)
-// Sets the background colour of the window to the given RGBA colour definition. This colour will show through for all transparent pixels.
-export function WindowSetBackgroundColour(R: number, G: number, B: number, A: number): void;
-
-// [ScreenGetAll](https://wails.io/docs/reference/runtime/window#screengetall)
-// Gets the all screens. Call this anew each time you want to refresh data from the underlying windowing system.
-export function ScreenGetAll(): Promise<Screen[]>;
-
-// [BrowserOpenURL](https://wails.io/docs/reference/runtime/browser#browseropenurl)
-// Opens the given URL in the system browser.
-export function BrowserOpenURL(url: string): void;
-
-// [Environment](https://wails.io/docs/reference/runtime/intro#environment)
-// Returns information about the environment
-export function Environment(): Promise<EnvironmentInfo>;
-
-// [Quit](https://wails.io/docs/reference/runtime/intro#quit)
-// Quits the application.
-export function Quit(): void;
-
-// [Hide](https://wails.io/docs/reference/runtime/intro#hide)
-// Hides the application.
-export function Hide(): void;
-
-// [Show](https://wails.io/docs/reference/runtime/intro#show)
-// Shows the application.
-export function Show(): void;
-
-// [ClipboardGetText](https://wails.io/docs/reference/runtime/clipboard#clipboardgettext)
-// Returns the current text stored on clipboard
-export function ClipboardGetText(): Promise<string>;
-
-// [ClipboardSetText](https://wails.io/docs/reference/runtime/clipboard#clipboardsettext)
-// Sets a text on the clipboard
-export function ClipboardSetText(text: string): Promise<boolean>;
-
-// [OnFileDrop](https://wails.io/docs/reference/runtime/draganddrop#onfiledrop)
-// OnFileDrop listens to drag and drop events and calls the callback with the coordinates of the drop and an array of path strings.
-export function OnFileDrop(callback: (x: number, y: number ,paths: string[]) => void, useDropTarget: boolean) :void
-
-// [OnFileDropOff](https://wails.io/docs/reference/runtime/draganddrop#dragandddropoff)
-// OnFileDropOff removes the drag and drop listeners and handlers.
-export function OnFileDropOff() :void
-
-// Check if the file path resolver is available
-export function CanResolveFilePaths(): boolean;
-
-// Resolves file paths for an array of files
-export function ResolveFilePaths(files: File[]): void
-
-// Notification types
-export interface NotificationOptions {
-    id: string;
-    title: string;
-    subtitle?: string; // macOS and Linux only
-    body?: string;
-    categoryId?: string;
-    data?: { [key: string]: any };
-}
-
-export interface NotificationAction {
-    id?: string;
-    title?: string;
-    destructive?: boolean; // macOS-specific
-}
-
-export interface NotificationCategory {
-    id?: string;
-    actions?: NotificationAction[];
-    hasReplyField?: boolean;
-    replyPlaceholder?: string;
-    replyButtonTitle?: string;
-}
-
-// [InitializeNotifications](https://wails.io/docs/reference/runtime/notification#initializenotifications)
-// Initializes the notification service for the application.
-// This must be called before sending any notifications.
-export function InitializeNotifications(): Promise<void>;
-
-// [CleanupNotifications](https://wails.io/docs/reference/runtime/notification#cleanupnotifications)
-// Cleans up notification resources and releases any held connections.
-export function CleanupNotifications(): Promise<void>;
-
-// [IsNotificationAvailable](https://wails.io/docs/reference/runtime/notification#isnotificationavailable)
-// Checks if notifications are available on the current platform.
-export function IsNotificationAvailable(): Promise<boolean>;
-
-// [RequestNotificationAuthorization](https://wails.io/docs/reference/runtime/notification#requestnotificationauthorization)
-// Requests notification authorization from the user (macOS only).
-export function RequestNotificationAuthorization(): Promise<boolean>;
-
-// [CheckNotificationAuthorization](https://wails.io/docs/reference/runtime/notification#checknotificationauthorization)
-// Checks the current notification authorization status (macOS only).
-export function CheckNotificationAuthorization(): Promise<boolean>;
-
-// [SendNotification](https://wails.io/docs/reference/runtime/notification#sendnotification)
-// Sends a basic notification with the given options.
-export function SendNotification(options: NotificationOptions): Promise<void>;
-
-// [SendNotificationWithActions](https://wails.io/docs/reference/runtime/notification#sendnotificationwithactions)
-// Sends a notification with action buttons. Requires a registered category.
-export function SendNotificationWithActions(options: NotificationOptions): Promise<void>;
-
-// [RegisterNotificationCategory](https://wails.io/docs/reference/runtime/notification#registernotificationcategory)
-// Registers a notification category that can be used with SendNotificationWithActions.
-export function RegisterNotificationCategory(category: NotificationCategory): Promise<void>;
-
-// [RemoveNotificationCategory](https://wails.io/docs/reference/runtime/notification#removenotificationcategory)
-// Removes a previously registered notification category.
-export function RemoveNotificationCategory(categoryId: string): Promise<void>;
-
-// [RemoveAllPendingNotifications](https://wails.io/docs/reference/runtime/notification#removeallpendingnotifications)
-// Removes all pending notifications from the notification center.
-export function RemoveAllPendingNotifications(): Promise<void>;
-
-// [RemovePendingNotification](https://wails.io/docs/reference/runtime/notification#removependingnotification)
-// Removes a specific pending notification by its identifier.
-export function RemovePendingNotification(identifier: string): Promise<void>;
-
-// [RemoveAllDeliveredNotifications](https://wails.io/docs/reference/runtime/notification#removealldeliverednotifications)
-// Removes all delivered notifications from the notification center.
-export function RemoveAllDeliveredNotifications(): Promise<void>;
-
-// [RemoveDeliveredNotification](https://wails.io/docs/reference/runtime/notification#removedeliverednotification)
-// Removes a specific delivered notification by its identifier.
-export function RemoveDeliveredNotification(identifier: string): Promise<void>;
-
-// [RemoveNotification](https://wails.io/docs/reference/runtime/notification#removenotification)
-// Removes a notification by its identifier (cross-platform convenience function).
-export function RemoveNotification(identifier: string): Promise<void>;
\ No newline at end of file
diff --git a/frontend/src/wailsjs/wailsjs/runtime/runtime.js b/frontend/src/wailsjs/wailsjs/runtime/runtime.js
deleted file mode 100644
index 556621e..0000000
--- a/frontend/src/wailsjs/wailsjs/runtime/runtime.js
+++ /dev/null
@@ -1,298 +0,0 @@
-/*
- _       __      _ __
-| |     / /___ _(_) /____
-| | /| / / __ `/ / / ___/
-| |/ |/ / /_/ / / (__  )
-|__/|__/\__,_/_/_/____/
-The electron alternative for Go
-(c) Lea Anthony 2019-present
-*/
-
-export function LogPrint(message) {
-    window.runtime.LogPrint(message);
-}
-
-export function LogTrace(message) {
-    window.runtime.LogTrace(message);
-}
-
-export function LogDebug(message) {
-    window.runtime.LogDebug(message);
-}
-
-export function LogInfo(message) {
-    window.runtime.LogInfo(message);
-}
-
-export function LogWarning(message) {
-    window.runtime.LogWarning(message);
-}
-
-export function LogError(message) {
-    window.runtime.LogError(message);
-}
-
-export function LogFatal(message) {
-    window.runtime.LogFatal(message);
-}
-
-export function EventsOnMultiple(eventName, callback, maxCallbacks) {
-    return window.runtime.EventsOnMultiple(eventName, callback, maxCallbacks);
-}
-
-export function EventsOn(eventName, callback) {
-    return EventsOnMultiple(eventName, callback, -1);
-}
-
-export function EventsOff(eventName, ...additionalEventNames) {
-    return window.runtime.EventsOff(eventName, ...additionalEventNames);
-}
-
-export function EventsOffAll() {
-  return window.runtime.EventsOffAll();
-}
-
-export function EventsOnce(eventName, callback) {
-    return EventsOnMultiple(eventName, callback, 1);
-}
-
-export function EventsEmit(eventName) {
-    let args = [eventName].slice.call(arguments);
-    return window.runtime.EventsEmit.apply(null, args);
-}
-
-export function WindowReload() {
-    window.runtime.WindowReload();
-}
-
-export function WindowReloadApp() {
-    window.runtime.WindowReloadApp();
-}
-
-export function WindowSetAlwaysOnTop(b) {
-    window.runtime.WindowSetAlwaysOnTop(b);
-}
-
-export function WindowSetSystemDefaultTheme() {
-    window.runtime.WindowSetSystemDefaultTheme();
-}
-
-export function WindowSetLightTheme() {
-    window.runtime.WindowSetLightTheme();
-}
-
-export function WindowSetDarkTheme() {
-    window.runtime.WindowSetDarkTheme();
-}
-
-export function WindowCenter() {
-    window.runtime.WindowCenter();
-}
-
-export function WindowSetTitle(title) {
-    window.runtime.WindowSetTitle(title);
-}
-
-export function WindowFullscreen() {
-    window.runtime.WindowFullscreen();
-}
-
-export function WindowUnfullscreen() {
-    window.runtime.WindowUnfullscreen();
-}
-
-export function WindowIsFullscreen() {
-    return window.runtime.WindowIsFullscreen();
-}
-
-export function WindowGetSize() {
-    return window.runtime.WindowGetSize();
-}
-
-export function WindowSetSize(width, height) {
-    window.runtime.WindowSetSize(width, height);
-}
-
-export function WindowSetMaxSize(width, height) {
-    window.runtime.WindowSetMaxSize(width, height);
-}
-
-export function WindowSetMinSize(width, height) {
-    window.runtime.WindowSetMinSize(width, height);
-}
-
-export function WindowSetPosition(x, y) {
-    window.runtime.WindowSetPosition(x, y);
-}
-
-export function WindowGetPosition() {
-    return window.runtime.WindowGetPosition();
-}
-
-export function WindowHide() {
-    window.runtime.WindowHide();
-}
-
-export function WindowShow() {
-    window.runtime.WindowShow();
-}
-
-export function WindowMaximise() {
-    window.runtime.WindowMaximise();
-}
-
-export function WindowToggleMaximise() {
-    window.runtime.WindowToggleMaximise();
-}
-
-export function WindowUnmaximise() {
-    window.runtime.WindowUnmaximise();
-}
-
-export function WindowIsMaximised() {
-    return window.runtime.WindowIsMaximised();
-}
-
-export function WindowMinimise() {
-    window.runtime.WindowMinimise();
-}
-
-export function WindowUnminimise() {
-    window.runtime.WindowUnminimise();
-}
-
-export function WindowSetBackgroundColour(R, G, B, A) {
-    window.runtime.WindowSetBackgroundColour(R, G, B, A);
-}
-
-export function ScreenGetAll() {
-    return window.runtime.ScreenGetAll();
-}
-
-export function WindowIsMinimised() {
-    return window.runtime.WindowIsMinimised();
-}
-
-export function WindowIsNormal() {
-    return window.runtime.WindowIsNormal();
-}
-
-export function BrowserOpenURL(url) {
-    window.runtime.BrowserOpenURL(url);
-}
-
-export function Environment() {
-    return window.runtime.Environment();
-}
-
-export function Quit() {
-    window.runtime.Quit();
-}
-
-export function Hide() {
-    window.runtime.Hide();
-}
-
-export function Show() {
-    window.runtime.Show();
-}
-
-export function ClipboardGetText() {
-    return window.runtime.ClipboardGetText();
-}
-
-export function ClipboardSetText(text) {
-    return window.runtime.ClipboardSetText(text);
-}
-
-/**
- * Callback for OnFileDrop returns a slice of file path strings when a drop is finished.
- *
- * @export
- * @callback OnFileDropCallback
- * @param {number} x - x coordinate of the drop
- * @param {number} y - y coordinate of the drop
- * @param {string[]} paths - A list of file paths.
- */
-
-/**
- * OnFileDrop listens to drag and drop events and calls the callback with the coordinates of the drop and an array of path strings.
- *
- * @export
- * @param {OnFileDropCallback} callback - Callback for OnFileDrop returns a slice of file path strings when a drop is finished.
- * @param {boolean} [useDropTarget=true] - Only call the callback when the drop finished on an element that has the drop target style. (--wails-drop-target)
- */
-export function OnFileDrop(callback, useDropTarget) {
-    return window.runtime.OnFileDrop(callback, useDropTarget);
-}
-
-/**
- * OnFileDropOff removes the drag and drop listeners and handlers.
- */
-export function OnFileDropOff() {
-    return window.runtime.OnFileDropOff();
-}
-
-export function CanResolveFilePaths() {
-    return window.runtime.CanResolveFilePaths();
-}
-
-export function ResolveFilePaths(files) {
-    return window.runtime.ResolveFilePaths(files);
-}
-
-export function InitializeNotifications() {
-    return window.runtime.InitializeNotifications();
-}
-
-export function CleanupNotifications() {
-    return window.runtime.CleanupNotifications();
-}
-
-export function IsNotificationAvailable() {
-    return window.runtime.IsNotificationAvailable();
-}
-
-export function RequestNotificationAuthorization() {
-    return window.runtime.RequestNotificationAuthorization();
-}
-
-export function CheckNotificationAuthorization() {
-    return window.runtime.CheckNotificationAuthorization();
-}
-
-export function SendNotification(options) {
-    return window.runtime.SendNotification(options);
-}
-
-export function SendNotificationWithActions(options) {
-    return window.runtime.SendNotificationWithActions(options);
-}
-
-export function RegisterNotificationCategory(category) {
-    return window.runtime.RegisterNotificationCategory(category);
-}
-
-export function RemoveNotificationCategory(categoryId) {
-    return window.runtime.RemoveNotificationCategory(categoryId);
-}
-
-export function RemoveAllPendingNotifications() {
-    return window.runtime.RemoveAllPendingNotifications();
-}
-
-export function RemovePendingNotification(identifier) {
-    return window.runtime.RemovePendingNotification(identifier);
-}
-
-export function RemoveAllDeliveredNotifications() {
-    return window.runtime.RemoveAllDeliveredNotifications();
-}
-
-export function RemoveDeliveredNotification(identifier) {
-    return window.runtime.RemoveDeliveredNotification(identifier);
-}
-
-export function RemoveNotification(identifier) {
-    return window.runtime.RemoveNotification(identifier);
-}
\ No newline at end of file
diff --git a/go.mod b/go.mod
index 34ebe09..93d2880 100644
--- a/go.mod
+++ b/go.mod
@@ -5,6 +5,7 @@ go 1.26
 require (
 	github.com/chromedp/cdproto v0.0.0-20260427013145-5737772c319b
 	github.com/chromedp/chromedp v0.15.1
+	github.com/fsnotify/fsnotify v1.10.1
 	github.com/glebarez/sqlite v1.11.0
 	github.com/labstack/echo/v4 v4.15.1
 	github.com/pkg/sftp v1.13.10
diff --git a/go.sum b/go.sum
index 4fb171b..dc5caf4 100644
--- a/go.sum
+++ b/go.sum
@@ -36,6 +36,8 @@ github.com/elazarl/goproxy v1.7.2 h1:Y2o6urb7Eule09PjlhQRGNsqRfPmYI3KKQLFpCAV3+o
 github.com/elazarl/goproxy v1.7.2/go.mod h1:82vkLNir0ALaW14Rc399OTTjyNREgmdL2cVoIbS6XaE=
 github.com/emirpasic/gods v1.18.1 h1:FXtiHYKDGKCW2KzwZKx0iC0PQmdlorYgdFG9jPXJ1Bc=
 github.com/emirpasic/gods v1.18.1/go.mod h1:8tpGGwCnJ5H4r6BWwaV6OrWmMoPhUl5jm/FMNAnJvWQ=
+github.com/fsnotify/fsnotify v1.10.1 h1:b0/UzAf9yR5rhf3RPm9gf3ehBPpf0oZKIjtpKrx59Ho=
+github.com/fsnotify/fsnotify v1.10.1/go.mod h1:TLheqan6HD6GBK6PrDWyDPBaEV8LspOxvPSjC+bVfgo=
 github.com/glebarez/go-sqlite v1.21.2 h1:3a6LFC4sKahUunAmynQKLZceZCOzUthkRkEAl9gAXWo=
 github.com/glebarez/go-sqlite v1.21.2/go.mod h1:sfxdZyhQjTM2Wry3gVYWaW072Ri1WMdWJi0k6+3382k=
 github.com/glebarez/sqlite v1.11.0 h1:wSG0irqzP6VurnMEpFGer5Li19RpIRi2qvQz++w0GMw=
diff --git a/internal/filesystem/service.go b/internal/filesystem/service.go
index 8b852ab..bcbf90b 100644
--- a/internal/filesystem/service.go
+++ b/internal/filesystem/service.go
@@ -268,6 +268,11 @@ func (s *FileSystemService) DeletePathWithContext(ctx context.Context, path stri
 
 // ListDir 列出目录内容
 func (s *FileSystemService) ListDir(path string) ([]map[string]interface{}, error) {
+	// 根路径：返回 Windows 盘符列表
+	if path == "/" || path == "\\" {
+		return s.listDrives()
+	}
+
 	// 路径验证
 	if err := s.validatePath(path); err != nil {
 		return nil, err
@@ -308,6 +313,25 @@ func (s *FileSystemService) ListDir(path string) ([]map[string]interface{}, erro
 	return result, nil
 }
 
+// listDrives 列出 Windows 可用盘符
+func (s *FileSystemService) listDrives() ([]map[string]interface{}, error) {
+	result := make([]map[string]interface{}, 0)
+	for _, drive := range "ABCDEFGHIJKLMNOPQRSTUVWXYZ" {
+		path := string(drive) + ":/"
+		_, err := os.Stat(path)
+		if err != nil {
+			continue
+		}
+		result = append(result, map[string]interface{}{
+			"name":   string(drive) + ":",
+			"path":   path,
+			"is_dir": true,
+			"size":   int64(0),
+		})
+	}
+	return result, nil
+}
+
 // CreateDir 创建目录，返回创建的目录信息
 func (s *FileSystemService) CreateDir(path string) (*FileOperationResult, error) {
 	if err := s.validatePath(path); err != nil {
diff --git a/internal/filewatch/watcher.go b/internal/filewatch/watcher.go
new file mode 100644
index 0000000..cfb9709
--- /dev/null
+++ b/internal/filewatch/watcher.go
@@ -0,0 +1,138 @@
+package filewatch
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/fsnotify/fsnotify"
+)
+
+type Watcher struct {
+	watcher   *fsnotify.Watcher
+	emitEvent func(name string, data ...any)
+	mu        sync.Mutex
+	watched   string // 当前监听的文件绝对路径
+}
+
+func NewWatcher(emitEvent func(name string, data ...any)) *Watcher {
+	return &Watcher{emitEvent: emitEvent}
+}
+
+// WatchFile 开始监听指定文件的变化。切换文件时自动取消旧监听。
+func (w *Watcher) WatchFile(path string) error {
+	w.mu.Lock()
+	defer w.mu.Unlock()
+
+	absPath, err := filepath.Abs(path)
+	if err != nil {
+		return fmt.Errorf("解析路径失败: %w", err)
+	}
+
+	// 同一文件不重复监听
+	if absPath == w.watched {
+		return nil
+	}
+
+	// 停止旧监听
+	w.stopLocked()
+
+	// 检查文件是否存在
+	if _, err := os.Stat(absPath); err != nil {
+		return fmt.Errorf("文件不存在: %s", absPath)
+	}
+
+	// 创建 fsnotify watcher
+	fw, err := fsnotify.NewWatcher()
+	if err != nil {
+		return fmt.Errorf("创建文件监听器失败: %w", err)
+	}
+	w.watcher = fw
+
+	// fsnotify 在某些系统上不支持直接监听文件，监听其所在目录
+	dir := filepath.Dir(absPath)
+	if err := fw.Add(dir); err != nil {
+		fw.Close()
+		return fmt.Errorf("监听目录失败: %w", err)
+	}
+
+	w.watched = absPath
+
+	// 后台消费事件
+	go w.consumeEvents()
+
+	return nil
+}
+
+// UnwatchFile 停止监听
+func (w *Watcher) UnwatchFile() {
+	w.mu.Lock()
+	defer w.mu.Unlock()
+	w.stopLocked()
+}
+
+func (w *Watcher) stopLocked() {
+	if w.watcher != nil {
+		w.watcher.Close()
+		w.watcher = nil
+	}
+	w.watched = ""
+}
+
+func (w *Watcher) consumeEvents() {
+	debounceDelay := 300 * time.Millisecond
+	var debounceTimer *time.Timer
+
+	for {
+		select {
+		case event, ok := <-w.watcher.Events:
+			if !ok {
+				return
+			}
+			// 只处理目标文件的 Write/Create/Rename 事件
+			if event.Op&(fsnotify.Write|fsnotify.Create|fsnotify.Rename) == 0 {
+				continue
+			}
+
+			w.mu.Lock()
+			target := w.watched
+			w.mu.Unlock()
+
+			if target == "" {
+				return // 已停止监听
+			}
+
+			// 路径比较（忽略大小写，Windows）
+			if !strings.EqualFold(event.Name, target) {
+				continue
+			}
+
+			// 防抖
+			if debounceTimer != nil {
+				debounceTimer.Stop()
+			}
+			debounceTimer = time.AfterFunc(debounceDelay, func() {
+				// 文件已不存在则跳过（如被删除）
+				if _, err := os.Stat(target); err != nil {
+					return
+				}
+				if w.emitEvent != nil {
+					w.emitEvent("file-changed", target)
+				}
+			})
+
+		case _, ok := <-w.watcher.Errors:
+			if !ok {
+				return
+			}
+		}
+	}
+}
+
+// Close 释放资源
+func (w *Watcher) Close() {
+	w.UnwatchFile()
+}
diff --git a/main.go b/main.go
index 6e9c6fa..3570474 100644
--- a/main.go
+++ b/main.go
@@ -2,8 +2,9 @@ package main
 
 import (
 	"embed"
+	"fmt"
 	"net/http"
-	"time"
+	"os"
 
 	"github.com/wailsapp/wails/v3/pkg/application"
 	"u-desk/internal/hotkey"
@@ -14,8 +15,9 @@ var assets embed.FS
 
 // 标题栏颜色（0x00BBGGRR）
 var (
-	titleBarLight = uint32(0xF0F0F0) // #F0F0F0 近白
+	titleBarLight = uint32(0xF0F0F0)  // #F0F0F0 近白
 	titleBarDark  = uint32(0x2D2D2D)  // #2D2D2D 深灰
+	noBorder      = uint32(0xFFFFFFFE) // DWMWA_COLOR_NONE - Win11 抑制边框绘制
 )
 
 func main() {
@@ -24,6 +26,9 @@ func main() {
 	wailsApp := application.New(application.Options{
 		Name:        "U-Desk",
 		Description: "桌面文件管理器",
+		SingleInstance: &application.SingleInstanceOptions{
+			UniqueID: "top.1216.udesk",
+		},
 		Services: []application.Service{
 			application.NewService(app),
 		},
@@ -32,7 +37,6 @@ func main() {
 			Middleware: func(next http.Handler) http.Handler {
 				return http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
 					if req.URL.Path == "/wails/custom.js" {
-						// custom.js 未使用，返回空响应避免 404 控制台报错
 						rw.Header().Set("Content-Type", "application/javascript")
 						rw.WriteHeader(200)
 						return
@@ -67,20 +71,27 @@ func main() {
 		Height:           900,
 		MinWidth:         1000,
 		MinHeight:        600,
-		BackgroundColour: application.NewRGB(255, 255, 255),
+		BackgroundColour: application.NewRGB(45, 45, 45),
 		URL:              "/",
 		Frameless: true,
-			// 保留 Windows 11 原生装饰（圆角 + Aero 阴影）
 		Windows: application.WindowsWindow{
 			Theme: application.SystemDefault,
 			CustomTheme: application.ThemeSettings{
 				LightModeActive: &application.WindowTheme{
 					TitleBarColour: &titleBarLight,
-					BorderColour:   &titleBarLight,
+					BorderColour:   &noBorder,
+				},
+				LightModeInactive: &application.WindowTheme{
+					TitleBarColour: &titleBarLight,
+					BorderColour:   &noBorder,
 				},
 				DarkModeActive: &application.WindowTheme{
 					TitleBarColour: &titleBarDark,
-					BorderColour:   &titleBarDark,
+					BorderColour:   &noBorder,
+				},
+				DarkModeInactive: &application.WindowTheme{
+					TitleBarColour: &titleBarDark,
+					BorderColour:   &noBorder,
 				},
 			},
 		},
@@ -88,15 +99,7 @@ func main() {
 
 	app.SetMainWindow(window)
 
-	// production+devtools 模式下 OpenInspectorOnStartup 不生效（需 debugMode=true）
-	// 手动延迟调用 OpenDevTools 弹出 Inspector
-	// TODO: 替换为 OnDomReady 回调，当前 alpha.80 可能未稳定支持
-	go func() {
-		time.Sleep(2 * time.Second)
-		window.OpenDevTools()
-	}()
-
 	if err := wailsApp.Run(); err != nil {
-		println("Error:", err.Error())
+		fmt.Fprintf(os.Stderr, "Error: %v\n", err)
 	}
 }