重构事件注册模型并更新应用配置。更改不同环境的基本url，增强事件注册项结构，并改进ScanQrCodePage中的导航。在AuthViewModel中添加clearAuth方法，以便更好地进行状态管理。

lib/app/config/app_config.dart

@@ -32,17 +32,18 @@ class AppConfig {
     current = switch (environment) {
       AppEnvironment.dev => const EnvironmentValues(
         environment: AppEnvironment.dev,
-        baseUrl: 'http://192.168.1.104:8000',
+        // baseUrl: 'http://192.168.1.104:8000',
+        baseUrl: 'https://apitest.dronex.cc',
         enableNetworkLog: true,
       ),
       AppEnvironment.staging => const EnvironmentValues(
         environment: AppEnvironment.staging,
-        baseUrl: 'https://example.com/api',
+        baseUrl: 'https://apitest.dronex.cc',
         enableNetworkLog: true,
       ),
       AppEnvironment.prod => const EnvironmentValues(
         environment: AppEnvironment.prod,
-        baseUrl: 'https://example.com/api',
+        baseUrl: 'https://api.dronex.cc',
         enableNetworkLog: false,
       ),
     };