修复核心UI文本的i18n问题：支持多语言切换

主要修复：
- 右键菜单：在此处打开终端、运行、保存到系统
- 拖拽提示：拖拽系统文件到此处上传、拖拽文件到窗口外下载
- 终端窗口标题和状态提示
- 错误消息：没有选择主机、只能运行可执行文件
- 添加完整的中英文翻译条目

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/ui/Desktop/Apps/File Manager/FileManagerContextMenu.tsx

@@ -206,7 +206,7 @@ export function FileManagerContextMenu({
 
       menuItems.push({
         icon: <Terminal className="w-4 h-4" />,
-        label: files[0].type === 'directory' ? "在此文件夹打开终端" : "在文件位置打开终端",
+        label: files[0].type === 'directory' ? t("fileManager.openTerminalInFolder") : t("fileManager.openTerminalInFileLocation"),
         action: () => onOpenTerminal(targetPath),
         shortcut: "Ctrl+T"
       });
@@ -216,7 +216,7 @@ export function FileManagerContextMenu({
     if (isSingleFile && hasExecutableFiles && onRunExecutable) {
       menuItems.push({
         icon: <Play className="w-4 h-4" />,
-        label: "运行",
+        label: t("fileManager.run"),
         action: () => onRunExecutable(files[0]),
         shortcut: "Enter"
       });
@@ -322,7 +322,7 @@ export function FileManagerContextMenu({
     if (onOpenTerminal && currentPath) {
       menuItems.push({
         icon: <Terminal className="w-4 h-4" />,
-        label: "在此处打开终端",
+        label: t("fileManager.openTerminalHere"),
         action: () => onOpenTerminal(currentPath),
         shortcut: "Ctrl+T"
       });

src/ui/Desktop/Apps/File Manager/FileManagerGrid.tsx

@@ -894,10 +894,10 @@ export function FileManagerGrid({
               <div className="text-center p-8 bg-background/95 border-2 border-dashed border-primary rounded-lg shadow-lg">
                 <Upload className="w-16 h-16 mx-auto mb-4 text-primary" />
                 <p className="text-xl font-semibold text-foreground mb-2">
-                  拖拽文件到此处上传
+                  {t("fileManager.dragFilesToUpload")}
                 </p>
                 <p className="text-sm text-muted-foreground">
-                  从系统文件管理器拖拽文件到这里进行上传
+                  {t("fileManager.dragSystemFilesToUpload")}
                 </p>
               </div>
             </div>
@@ -912,11 +912,11 @@ export function FileManagerGrid({
                 <div className="space-y-3">
                   <div className="flex items-center justify-center gap-2 text-sm text-muted-foreground bg-muted/50 rounded-md px-3 py-2">
                     <Upload className="w-4 h-4" />
-                    拖拽系统文件到此处上传
+                    {t("fileManager.dragSystemFilesToUpload")}
                   </div>
                   <div className="flex items-center justify-center gap-2 text-sm text-muted-foreground bg-muted/50 rounded-md px-3 py-2">
                     <Download className="w-4 h-4" />
-                    拖拽文件到窗口外下载
+                    {t("fileManager.dragFilesToWindowToDownload")}
                   </div>
                 </div>
               </div>

src/ui/Desktop/Apps/File Manager/FileManagerModern.tsx

@@ -1141,7 +1141,7 @@ function FileManagerContent({ initialHost, onClose }: FileManagerModernProps) {
   // 打开终端处理函数
   function handleOpenTerminal(path: string) {
     if (!currentHost) {
-      toast.error("没有选择主机");
+      toast.error(t("fileManager.noHostSelected"));
       return;
     }
 
@@ -1172,18 +1172,18 @@ function FileManagerContent({ initialHost, onClose }: FileManagerModernProps) {
       component: createTerminalComponent
     });
 
-    toast.success(`在 ${path} 打开终端`);
+    toast.success(t("fileManager.terminalWithPath", { host: currentHost.name, path }));
   }
 
   // 运行可执行文件处理函数
   function handleRunExecutable(file: FileItem) {
     if (!currentHost) {
-      toast.error("没有选择主机");
+      toast.error(t("fileManager.noHostSelected"));
       return;
     }
 
     if (file.type !== 'file' || !file.executable) {
-      toast.error("只能运行可执行文件");
+      toast.error(t("fileManager.onlyRunExecutableFiles"));
       return;
     }
 
@@ -1209,7 +1209,7 @@ function FileManagerContent({ initialHost, onClose }: FileManagerModernProps) {
     );
 
     openWindow({
-      title: `运行 - ${file.name}`,
+      title: t("fileManager.runningFile", { file: file.name }),
       x: offsetX,
       y: offsetY,
       width: 800,
@@ -1219,7 +1219,7 @@ function FileManagerContent({ initialHost, onClose }: FileManagerModernProps) {
       component: createExecutionTerminal
     });
 
-    toast.success(`正在运行: ${file.name}`);
+    toast.success(t("fileManager.runningFile", { file: file.name }));
   }
 
   // 过滤文件并添加新建的临时项目