统一应用顶部栏与设置入口

src/main/java/com/example/workutils/WorkUtilsApplication.java

@@ -111,9 +111,9 @@ public class WorkUtilsApplication implements CommandLineRunner {
         Platform.runLater(Theme::initTheme);
 
         // 设置导航栏刷新回调（插件管理中启用/禁用后刷新侧边栏）
-        settingsService.setNavItemsRefresher(items -> Platform.runLater(() -> {
+        settingsService.setNavItemsRefresher(ignoredItems -> Platform.runLater(() -> {
             if (mainWindow != null) {
-                mainWindow.refreshNavItems(items);
+                mainWindow.refreshNavItems(buildNavItems());
                 // 重新绑定插件面板
                 for (Plugin plugin : pluginManager.getEnabledPlugins()) {
                     PluginDescriptor desc = plugin.getDescriptor();
@@ -131,7 +131,7 @@ public class WorkUtilsApplication implements CommandLineRunner {
         CountDownLatch windowClosed = new CountDownLatch(1);
         Platform.runLater(() -> {
             try {
-                mainWindow = new MainWindow(navItems, properties);
+                mainWindow = new MainWindow(navItems, properties, this::openSettingsEmbedded);
                 mainWindow.showAndWait();
             } catch (Exception e) {
                 log.error("主窗口创建失败", e);
@@ -164,14 +164,6 @@ public class WorkUtilsApplication implements CommandLineRunner {
             ));
         }
 
-        // 系统设置 — 内嵌为 Tab
-        items.add(new MainWindow.NavItem(
-                "⚙️", "系统设置",
-                "配置系统路径、数据库连接、项目路径、多数据源、字体大小等",
-                this::openSettingsEmbedded,
-                "__settings__"
-        ));
-
         return items;
     }