feat: 添加环境配置区分本地和生产环境

- 使用 --dart-define=ENV=prod 构建生产版本
- 生产环境: http://8.155.172.147:5010
- 本地环境: http://localhost:5010
- 更新 web 构建产物

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

flutter_monisuo/build/web/.last_build_id

@@ -1 +1 @@
-cd059bcd8df9e9b2b7bfff5ee9fb7ba7
+2b1d2ed877ca1d041aef5d6561fbfcf5

flutter_monisuo/build/web/flutter_bootstrap.js

@@ -37,6 +37,6 @@ _flutter.buildConfig = {"engineRevision":"e4b8dca3f1b4ede4c30371002441c88c12187e
 
 _flutter.loader.load({
   serviceWorkerSettings: {
-    serviceWorkerVersion: "2672737280" /* Flutter's service worker is deprecated and will be removed in a future Flutter release. */
+    serviceWorkerVersion: "3100103420" /* Flutter's service worker is deprecated and will be removed in a future Flutter release. */
   }
 });

flutter_monisuo/lib/core/constants/api_endpoints.dart

@@ -2,8 +2,16 @@
 class ApiEndpoints {
   ApiEndpoints._();
 
-  /// 基础URL
-  static const String baseUrl = 'http://localhost:5010';
+  /// 环境类型
+  static const String _env = String.fromEnvironment('ENV', defaultValue: 'dev');
+
+  /// 基础URL - 根据环境自动切换
+  static const String baseUrl = _env == 'prod'
+      ? 'http://8.155.172.147:5010'
+      : 'http://localhost:5010';
+
+  /// 是否为生产环境
+  static const bool isProduction = _env == 'prod';
 
   // ==================== 用户模块 ====================