新增AI教练模块，包括控制器、服务、模型及数据传输对象，更新应用模块以引入新模块，同时在打卡模块中添加按时间范围返回每日打卡状态的功能

src/users/users.controller.ts

@@ -30,6 +30,7 @@ import { CurrentUser } from '../common/decorators/current-user.decorator';
 import { AccessTokenPayload } from './services/apple-auth.service';
 import { JwtAuthGuard } from 'src/common/guards/jwt-auth.guard';
 import { ResponseCode } from 'src/base.dto';
+import { CosService } from './cos.service';
 
 
 @ApiTags('users')
@@ -39,6 +40,7 @@ export class UsersController {
   constructor(
     private readonly usersService: UsersService,
     @Inject(WINSTON_MODULE_PROVIDER) private readonly winstonLogger: WinstonLogger,
+    private readonly cosService: CosService,
   ) { }
 
   @UseGuards(JwtAuthGuard)
@@ -118,6 +120,26 @@ export class UsersController {
     return this.usersService.refreshGuestToken(refreshGuestTokenDto);
   }
 
+  // 获取COS上传临时密钥
+  @UseGuards(JwtAuthGuard)
+  @Get('cos/upload-token')
+  @HttpCode(HttpStatus.OK)
+  @ApiOperation({ summary: '获取COS上传临时密钥' })
+  async getCosUploadToken(@CurrentUser() user: AccessTokenPayload) {
+    try {
+      const data = await this.cosService.getUploadToken(user.sub);
+      return { code: ResponseCode.SUCCESS, message: 'success', data };
+    } catch (error) {
+      this.winstonLogger.error('获取COS上传临时密钥失败', {
+        context: 'UsersController',
+        userId: user?.sub,
+        error: (error as Error).message,
+        stack: (error as Error).stack,
+      });
+      return { code: ResponseCode.ERROR, message: (error as Error).message };
+    }
+  }
+
   // App Store 服务器通知接收接口
   @Public()
   @Post('app-store-notifications')