refactor: 更新核心服务和应用配置

- 更新用户实体和DTO结构
- 重构用户服务逻辑
- 更新登录核心服务
- 调整应用模块配置以适配新的业务模块结构
- 更新应用控制器和服务

src/app.module.ts

@@ -1,14 +1,19 @@
-import { Module } from '@nestjs/common';
+import { Module, NestModule, MiddlewareConsumer } from '@nestjs/common';
 import { ConfigModule } from '@nestjs/config';
 import { TypeOrmModule } from '@nestjs/typeorm';
+import { APP_INTERCEPTOR } from '@nestjs/core';
 import { AppController } from './app.controller';
 import { AppService } from './app.service';
 import { LoggerModule } from './core/utils/logger/logger.module';
 import { UsersModule } from './core/db/users/users.module';
 import { LoginCoreModule } from './core/login_core/login_core.module';
-import { LoginModule } from './business/login/login.module';
+import { AuthModule } from './business/auth/auth.module';
 import { RedisModule } from './core/redis/redis.module';
 import { AdminModule } from './business/admin/admin.module';
+import { UserMgmtModule } from './business/user-mgmt/user-mgmt.module';
+import { SecurityModule } from './business/security/security.module';
+import { MaintenanceMiddleware } from './business/security/middleware/maintenance.middleware';
+import { ContentTypeMiddleware } from './business/security/middleware/content-type.middleware';
 
 /**
  * 检查数据库配置是否完整 by angjustinl 2025-12-17
@@ -61,10 +66,32 @@ function isDatabaseConfigured(): boolean {
     // 根据数据库配置选择用户模块模式
     isDatabaseConfigured() ? UsersModule.forDatabase() : UsersModule.forMemory(),
     LoginCoreModule,
-    LoginModule,
+    AuthModule,
+    UserMgmtModule,
     AdminModule,
+    SecurityModule,
   ],
   controllers: [AppController],
-  providers: [AppService],
+  providers: [
+    AppService,
+    // 注意：全局拦截器现在由SecurityModule提供
+  ],
 })
-export class AppModule {}
+export class AppModule implements NestModule {
+  /**
+   * 配置中间件
+   * 
+   * @param consumer 中间件消费者
+   */
+  configure(consumer: MiddlewareConsumer) {
+    // 1. 维护模式中间件 - 最高优先级
+    consumer
+      .apply(MaintenanceMiddleware)
+      .forRoutes('*');
+
+    // 2. 内容类型检查中间件
+    consumer
+      .apply(ContentTypeMiddleware)
+      .forRoutes('*');
+  }
+}