项目整理：添加Cookie Cloud下载功能、优化前端界面、配置改为config.json、打包脚本、清理无用文件

backend/static/js/app.js

@@ -66,6 +66,12 @@ createApp({
             }
         };
         
+        const handleDropdownCommand = async (command) => {
+            if (command === 'login') {
+                showAdminLogin();
+            }
+        };
+        
         const showAdminLogin = () => {
             adminLoginForm.value = { password: '' };
             adminLoginVisible.value = true;
@@ -579,7 +585,7 @@ createApp({
             cookieDialogVisible, cookieDialogTitle, cookieForm,
             websiteForm, filterWebsiteUser,
             currentUserWebsites, filteredWebsites,
-            checkAdminStatus, showAdminLogin, adminLogin, handleAdminCommand,
+            checkAdminStatus, showAdminLogin, adminLogin, handleAdminCommand, handleDropdownCommand,
             loadUsers, loadUsersWithWebsites, loadWebsites, loadDashboard, refreshDashboardStatus,
             startAutoRefresh, stopAutoRefresh,
             checkLogin, manageWebsite, manageUserWebsites,