新增训练计划模块，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AI教练模块中添加体态评估功能，支持体重识别与更新，优化用户体重历史记录管理。

src/users/users.controller.ts

@@ -18,7 +18,7 @@ import { Logger as WinstonLogger } from 'winston';
 import { UsersService } from './users.service';
 import { CreateUserDto } from './dto/create-user.dto';
 import { UserResponseDto } from './dto/user-response.dto';
-import { ApiOperation, ApiBody, ApiResponse, ApiTags } from '@nestjs/swagger';
+import { ApiOperation, ApiBody, ApiResponse, ApiTags, ApiQuery } from '@nestjs/swagger';
 import { UpdateUserDto, UpdateUserResponseDto } from './dto/update-user.dto';
 import { AppleLoginDto, AppleLoginResponseDto, RefreshTokenDto, RefreshTokenResponseDto } from './dto/apple-login.dto';
 import { DeleteAccountDto, DeleteAccountResponseDto } from './dto/delete-account.dto';
@@ -54,6 +54,19 @@ export class UsersController {
     return this.usersService.getProfile(user);
   }
 
+  // 获取历史体重记录
+  @UseGuards(JwtAuthGuard)
+  @Get('/weight-history')
+  @HttpCode(HttpStatus.OK)
+  @ApiOperation({ summary: '获取历史体重记录（按时间倒序）' })
+  @ApiQuery({ name: 'limit', required: false, description: '返回条数，默认200，最大1000' })
+  async getWeightHistory(
+    @CurrentUser() user: AccessTokenPayload,
+  ) {
+    const data = await this.usersService.getWeightHistory(user.sub, {});
+    return { code: ResponseCode.SUCCESS, message: 'success', data };
+  }
+
 
   // 更新用户昵称、头像
   @UseGuards(JwtAuthGuard)