refactor(usage): load stats via config events

app.js

@@ -149,6 +149,7 @@ class CLIProxyManager {
         this.initUiVersion();
         this.initializeTheme();
         this.registerSettingsListeners();
+        this.registerUsageListeners();
         this.checkLoginStatus();
         this.bindEvents();
         this.setupNavigation();

src/core/connection.js

@@ -328,9 +328,6 @@ export const connectionModule = {
             // 认证文件需要单独加载，因为不在配置中
             await this.loadAuthFiles(keyStats);
 
-            // 使用统计需要单独加载，复用已获取的usage数据
-            await this.loadUsageStats(usageData);
-
             // 加载配置文件编辑器内容
             await this.loadConfigFileEditor(forceRefresh);
             this.refreshConfigEditor();

src/modules/usage.js

@@ -741,5 +741,18 @@ export const usageModule = {
     getTokensChartData,
     switchRequestsPeriod,
     switchTokensPeriod,
-    updateApiStatsTable
+    updateApiStatsTable,
+    registerUsageListeners
 };
+
+// 订阅全局事件，基于配置加载结果渲染使用统计
+export function registerUsageListeners() {
+    if (!this.events || typeof this.events.on !== 'function') {
+        return;
+    }
+    this.events.on('data:config-loaded', (event) => {
+        const detail = event?.detail || {};
+        const usageData = detail.usageData || null;
+        this.loadUsageStats(usageData);
+    });
+}