feat(diet-records): 新增营养成分表图片分析功能

- 添加营养成分表图片识别API接口，支持通过AI模型分析食物营养成分
- 新增NutritionAnalysisService服务，集成GLM-4.5V和Qwen VL视觉模型
- 实现营养成分提取和健康建议生成功能
- 添加完整的API文档和TypeScript类型定义
- 支持多种营养素类型识别，包括热量、蛋白质、脂肪等20+种营养素

src/diet-records/diet-records.controller.ts

@@ -15,7 +15,10 @@ import {
 } from '@nestjs/common';
 import { ApiOperation, ApiBody, ApiResponse, ApiTags, ApiQuery } from '@nestjs/swagger';
 import { DietRecordsService } from './diet-records.service';
+import { NutritionAnalysisService } from './services/nutrition-analysis.service';
 import { CreateDietRecordDto, UpdateDietRecordDto, GetDietHistoryQueryDto, DietRecordResponseDto, DietHistoryResponseDto, NutritionSummaryDto, FoodRecognitionRequestDto, FoodRecognitionResponseDto, FoodRecognitionToDietRecordsResponseDto } from '../users/dto/diet-record.dto';
+import { NutritionAnalysisResponseDto } from './dto/nutrition-analysis.dto';
+import { NutritionAnalysisRequestDto } from './dto/nutrition-analysis-request.dto';
 import { JwtAuthGuard } from '../common/guards/jwt-auth.guard';
 import { CurrentUser } from '../common/decorators/current-user.decorator';
 import { AccessTokenPayload } from '../users/services/apple-auth.service';
@@ -27,6 +30,7 @@ export class DietRecordsController {
 
   constructor(
     private readonly dietRecordsService: DietRecordsService,
+    private readonly nutritionAnalysisService: NutritionAnalysisService,
   ) { }
 
   /**
@@ -161,4 +165,57 @@ export class DietRecordsController {
       requestDto.mealType
     );
   }
+
+  /**
+   * 分析食物营养成分表图片
+   */
+  @UseGuards(JwtAuthGuard)
+  @Post('analyze-nutrition-image')
+  @HttpCode(HttpStatus.OK)
+  @ApiOperation({ summary: '分析食物营养成分表图片' })
+  @ApiBody({ type: NutritionAnalysisRequestDto })
+  @ApiResponse({ status: 200, description: '成功分析营养成分表', type: NutritionAnalysisResponseDto })
+  @ApiResponse({ status: 400, description: '请求参数错误' })
+  @ApiResponse({ status: 401, description: '未授权访问' })
+  @ApiResponse({ status: 500, description: '服务器内部错误' })
+  async analyzeNutritionImage(
+    @Body() requestDto: NutritionAnalysisRequestDto,
+    @CurrentUser() user: AccessTokenPayload,
+  ): Promise<NutritionAnalysisResponseDto> {
+    this.logger.log(`分析营养成分表 - 用户ID: ${user.sub}, 图片URL: ${requestDto.imageUrl}`);
+
+    if (!requestDto.imageUrl) {
+      return {
+        success: false,
+        data: [],
+        message: '请提供图片URL'
+      };
+    }
+
+    // 验证URL格式
+    try {
+      new URL(requestDto.imageUrl);
+    } catch (error) {
+      return {
+        success: false,
+        data: [],
+        message: '图片URL格式不正确'
+      };
+    }
+
+    try {
+      const result = await this.nutritionAnalysisService.analyzeNutritionImage(requestDto.imageUrl);
+
+      this.logger.log(`营养成分表分析完成 - 用户ID: ${user.sub}, 成功: ${result.success}, 营养素数量: ${result.data.length}`);
+
+      return result;
+    } catch (error) {
+      this.logger.error(`营养成分表分析失败 - 用户ID: ${user.sub}, 错误: ${error instanceof Error ? error.message : String(error)}`);
+      return {
+        success: false,
+        data: [],
+        message: '营养成分表分析失败，请稍后重试'
+      };
+    }
+  }
 }