feat: 标记认证检查结束

src/contexts/AuthContext.js

@@ -129,6 +129,10 @@ export const AuthProvider = ({ children }) => {
       setUser((prev) => prev === null ? prev : null);
       setIsAuthenticated((prev) => prev === false ? prev : false);
     } finally {
+      // ⏱️ 性能监控: 标记认证检查结束
+      performanceMonitor.mark('auth-check-end');
+      performanceMonitor.measure('auth-check', 'auth-check-start', 'auth-check-end');
+
       // ⚡ 只在 isLoading 为 true 时才设置为 false，避免不必要的状态更新
       setIsLoading((prev) => prev === false ? prev : false);
     }