feat: 新增体重记录接口及枚举，优化AI教练选择项处理

src/users/users.service.ts

@@ -216,12 +216,13 @@ export class UsersService {
 
     await user.save();
 
+    const [profile] = await this.userProfileModel.findOrCreate({
+      where: { userId },
+      defaults: { userId },
+    });
+
     // 更新或创建扩展信息
     if (dailyStepsGoal !== undefined || dailyCaloriesGoal !== undefined || pilatesPurposes !== undefined || weight !== undefined || initialWeight !== undefined || targetWeight !== undefined || height !== undefined || activityLevel !== undefined) {
-      const [profile] = await this.userProfileModel.findOrCreate({
-        where: { userId },
-        defaults: { userId },
-      });
       if (dailyStepsGoal !== undefined) { profile.dailyStepsGoal = dailyStepsGoal as any; profileChanges.dailyStepsGoal = dailyStepsGoal; }
       if (dailyCaloriesGoal !== undefined) { profile.dailyCaloriesGoal = dailyCaloriesGoal as any; profileChanges.dailyCaloriesGoal = dailyCaloriesGoal; }
       if (pilatesPurposes !== undefined) { profile.pilatesPurposes = pilatesPurposes as any; profileChanges.pilatesPurposes = pilatesPurposes; }
@@ -278,6 +279,7 @@ export class UsersService {
       message: 'success',
       data: {
         ...user.toJSON(),
+        ...profile.toJSON(),
         isNew: false,
       } as any,
     };
@@ -318,7 +320,156 @@ export class UsersService {
       order: [['created_at', 'DESC']],
       limit,
     });
-    return rows.map(r => ({ weight: r.weight, source: r.source, createdAt: r.createdAt }));
+    return rows.map(r => ({
+      id: r.id,
+      weight: r.weight,
+      source: r.source,
+      createdAt: r.createdAt
+    }));
+  }
+
+  /**
+   * 更新体重记录
+   */
+  async updateWeightRecord(userId: string, recordId: number, updateData: { weight: number; source?: WeightUpdateSource }) {
+    const t = await this.sequelize.transaction();
+    try {
+      // 查找并验证体重记录是否存在且属于当前用户
+      const weightRecord = await this.userWeightHistoryModel.findOne({
+        where: { id: recordId, userId },
+        transaction: t,
+      });
+
+      if (!weightRecord) {
+        throw new NotFoundException('体重记录不存在');
+      }
+
+      const oldWeight = weightRecord.weight;
+      const oldSource = weightRecord.source;
+
+      // 更新体重记录
+      await weightRecord.update({
+        weight: updateData.weight,
+        source: updateData.source || weightRecord.source,
+      }, { transaction: t });
+
+      // 如果这是最新的体重记录，同时更新用户档案中的体重
+      const latestRecord = await this.userWeightHistoryModel.findOne({
+        where: { userId },
+        order: [['created_at', 'DESC']],
+        transaction: t,
+      });
+
+      if (latestRecord && latestRecord.id === recordId) {
+        const profile = await this.userProfileModel.findOne({
+          where: { userId },
+          transaction: t,
+        });
+        if (profile) {
+          profile.weight = updateData.weight;
+          await profile.save({ transaction: t });
+        }
+      }
+
+      await t.commit();
+
+      // 记录活动日志
+      await this.activityLogsService.record({
+        userId,
+        entityType: ActivityEntityType.USER_PROFILE,
+        action: ActivityActionType.UPDATE,
+        entityId: recordId.toString(),
+        changes: {
+          weight: { from: oldWeight, to: updateData.weight },
+          ...(updateData.source && updateData.source !== oldSource ? { source: { from: oldSource, to: updateData.source } } : {}),
+        },
+      });
+
+      return {
+        code: ResponseCode.SUCCESS,
+        message: 'success',
+        data: {
+          id: weightRecord.id,
+          userId: weightRecord.userId,
+          weight: weightRecord.weight,
+          source: weightRecord.source,
+          createdAt: weightRecord.createdAt,
+          updatedAt: weightRecord.updatedAt,
+        },
+      };
+    } catch (error) {
+      await t.rollback();
+      this.logger.error(`更新体重记录失败: ${error instanceof Error ? error.message : String(error)}`);
+      throw error;
+    }
+  }
+
+  /**
+   * 删除体重记录
+   */
+  async deleteWeightRecord(userId: string, recordId: number): Promise<boolean> {
+    const t = await this.sequelize.transaction();
+    try {
+      // 查找并验证体重记录是否存在且属于当前用户
+      const weightRecord = await this.userWeightHistoryModel.findOne({
+        where: { id: recordId, userId },
+        transaction: t,
+      });
+
+      if (!weightRecord) {
+        return false;
+      }
+
+      const recordData = {
+        id: weightRecord.id,
+        weight: weightRecord.weight,
+        source: weightRecord.source,
+        createdAt: weightRecord.createdAt,
+      };
+
+      // 删除体重记录
+      await weightRecord.destroy({ transaction: t });
+
+      // 如果删除的是最新记录，需要更新用户档案中的体重为倒数第二新的记录
+      const latestRecord = await this.userWeightHistoryModel.findOne({
+        where: { userId },
+        order: [['created_at', 'DESC']],
+        transaction: t,
+      });
+
+      const profile = await this.userProfileModel.findOne({
+        where: { userId },
+        transaction: t,
+      });
+
+      if (profile) {
+        if (latestRecord) {
+          // 有其他体重记录，更新为最新的体重
+          profile.weight = latestRecord.weight;
+        } else {
+          // 没有其他体重记录，清空体重字段
+          profile.weight = null;
+        }
+        await profile.save({ transaction: t });
+      }
+
+      await t.commit();
+
+      // 记录活动日志
+      await this.activityLogsService.record({
+        userId,
+        entityType: ActivityEntityType.USER_PROFILE,
+        action: ActivityActionType.DELETE,
+        entityId: recordId.toString(),
+        changes: recordData,
+      });
+
+      return true;
+    } catch (error) {
+      await t.rollback();
+      this.logger.error(`删除体重记录失败: ${error instanceof Error ? error.message : String(error)}`);
+      throw error;
+    }
   }
 
   /**