feat(diet-records): 新增营养成分分析记录功能

- 添加营养成分分析记录数据模型和数据库集成
- 实现分析记录保存功能，支持成功和失败状态记录
- 新增获取用户营养成分分析记录的API接口
- 支持按日期范围、状态等条件筛选查询
- 提供分页查询功能，优化大数据量场景性能

src/diet-records/services/nutrition-analysis.service.ts

@@ -1,7 +1,10 @@
 import { Injectable, Logger } from '@nestjs/common';
 import { ConfigService } from '@nestjs/config';
 import { OpenAI } from 'openai';
+import { InjectModel } from '@nestjs/sequelize';
+import { Op } from 'sequelize';
 import { ResponseCode } from '../../base.dto';
+import { NutritionAnalysisRecord } from '../models/nutrition-analysis-record.model';
 
 /**
  * 营养成分分析结果接口
@@ -38,7 +41,11 @@ export class NutritionAnalysisService {
   private readonly visionModel: string;
   private readonly apiProvider: string;
 
-  constructor(private readonly configService: ConfigService) {
+  constructor(
+    private readonly configService: ConfigService,
+    @InjectModel(NutritionAnalysisRecord)
+    private readonly nutritionAnalysisRecordModel: typeof NutritionAnalysisRecord,
+  ) {
     // Support both GLM-4.5V and DashScope (Qwen) models
     this.apiProvider = this.configService.get<string>('AI_VISION_PROVIDER') || 'dashscope';
 
@@ -72,9 +79,9 @@ export class NutritionAnalysisService {
    * @param imageUrl 图片URL
    * @returns 营养成分分析结果
    */
-  async analyzeNutritionImage(imageUrl: string): Promise<NutritionAnalysisResponse> {
+  async analyzeNutritionImage(imageUrl: string, userId?: string): Promise<NutritionAnalysisResponse> {
     try {
-      this.logger.log(`开始分析营养成分表图片: ${imageUrl}`);
+      this.logger.log(`开始分析营养成分表图片: ${imageUrl}, 用户ID: ${userId}`);
 
       const prompt = this.buildNutritionAnalysisPrompt();
 
@@ -83,9 +90,26 @@ export class NutritionAnalysisService {
       const rawResult = completion.choices?.[0]?.message?.content || '{"code": 1, "msg": "未获取到AI模型响应", "data": []}';
       this.logger.log(`营养成分分析原始结果: ${rawResult}`);
 
-      return this.parseNutritionAnalysisResult(rawResult);
+      const result = this.parseNutritionAnalysisResult(rawResult);
+
+      // 如果提供了用户ID，保存分析记录
+      if (userId) {
+        await this.saveAnalysisRecord(userId, imageUrl, result);
+      }
+
+      return result;
     } catch (error) {
       this.logger.error(`营养成分表分析失败: ${error instanceof Error ? error.message : String(error)}`);
+
+      // 如果提供了用户ID，保存失败记录
+      if (userId) {
+        await this.saveAnalysisRecord(userId, imageUrl, {
+          success: false,
+          data: [],
+          message: '营养成分表分析失败，请稍后重试'
+        });
+      }
+
       return {
         success: false,
         data: [],
@@ -318,4 +342,90 @@ export class NutritionAnalysisService {
       };
     }
   }
+
+  /**
+   * 保存营养成分分析记录
+   * @param userId 用户ID
+   * @param imageUrl 图片URL
+   * @param result 分析结果
+   */
+  private async saveAnalysisRecord(
+    userId: string,
+    imageUrl: string,
+    result: NutritionAnalysisResponse
+  ): Promise<void> {
+    try {
+      await this.nutritionAnalysisRecordModel.create({
+        userId,
+        imageUrl,
+        analysisResult: result,
+        status: result.success ? 'success' : 'failed',
+        message: result.message || '',
+        aiProvider: this.apiProvider,
+        aiModel: this.visionModel,
+        nutritionCount: result.data.length,
+      });
+      this.logger.log(`营养成分分析记录已保存 - 用户ID: ${userId}, 成功: ${result.success}`);
+    } catch (error) {
+      this.logger.error(`保存营养成分分析记录失败: ${error instanceof Error ? error.message : String(error)}`);
+    }
+  }
+
+  /**
+   * 获取用户的营养成分分析记录
+   * @param userId 用户ID
+   * @param query 查询参数
+   * @returns 分析记录列表
+   */
+  async getAnalysisRecords(
+    userId: string,
+    query: {
+      page?: number;
+      limit?: number;
+      startDate?: string;
+      endDate?: string;
+      status?: string;
+    }
+  ): Promise<{
+    records: NutritionAnalysisRecord[];
+    total: number;
+    page: number;
+    limit: number;
+    totalPages: number;
+  }> {
+    const where: any = { userId, deleted: false };
+
+    // 日期过滤
+    if (query.startDate || query.endDate) {
+      where.createdAt = {} as any;
+      if (query.startDate) where.createdAt[Op.gte] = new Date(query.startDate);
+      if (query.endDate) where.createdAt[Op.lte] = new Date(query.endDate);
+    }
+
+    // 状态过滤
+    if (query.status) {
+      where.status = query.status;
+    }
+
+    const limit = Math.min(100, Math.max(1, query.limit || 20));
+    const page = Math.max(1, query.page || 1);
+    const offset = (page - 1) * limit;
+
+    const { rows, count } = await this.nutritionAnalysisRecordModel.findAndCountAll({
+      where,
+      order: [['created_at', 'DESC']],
+      limit,
+      offset,
+    });
+
+    const totalPages = Math.ceil(count / limit);
+
+    return {
+      records: rows,
+      total: count,
+      page,
+      limit,
+      totalPages,
+    };
+  }
 }