feat: 删除心情打卡和目标子任务API测试文件

- 移除test-goal-tasks.http和test-mood-checkins.http文件，清理不再使用的测试文件。
- 更新GoalsService中的目标删除逻辑，增加事务处理以确保数据一致性。
- 优化GoalTaskService中的任务生成逻辑，增加日志记录以便于调试和监控。

src/goals/goals.service.ts

@@ -1,6 +1,7 @@
 import { Injectable, Logger, NotFoundException, BadRequestException } from '@nestjs/common';
-import { InjectModel } from '@nestjs/sequelize';
-import { Op, WhereOptions, Order } from 'sequelize';
+import { InjectModel, InjectConnection } from '@nestjs/sequelize';
+import { Op, WhereOptions, Order, Transaction } from 'sequelize';
+import { Sequelize } from 'sequelize-typescript';
 import { Goal, GoalStatus, GoalRepeatType } from './models/goal.model';
 import { GoalCompletion } from './models/goal-completion.model';
 import { GoalTask } from './models/goal-task.model';
@@ -22,6 +23,8 @@ export class GoalsService {
     private readonly goalCompletionModel: typeof GoalCompletion,
     @InjectModel(GoalTask)
     private readonly goalTaskModel: typeof GoalTask,
+    @InjectConnection()
+    private readonly sequelize: Sequelize,
     private readonly goalTaskService: GoalTaskService,
   ) { }
 
@@ -180,27 +183,58 @@ export class GoalsService {
    * 删除目标
    */
   async deleteGoal(userId: string, goalId: string): Promise<boolean> {
+    const transaction = await this.sequelize.transaction();
+    
     try {
+      // 验证目标存在
       const goal = await this.goalModel.findOne({
         where: { id: goalId, userId, deleted: false },
+        transaction,
       });
 
       if (!goal) {
+        await transaction.rollback();
         throw new NotFoundException('目标不存在');
       }
 
-      // 软删除目标
-      await goal.update({ deleted: true });
+      // 使用事务删除目标及其相关数据
+      await Promise.all([
+        // 软删除目标本身
+        this.goalModel.update(
+          { deleted: true },
+          { 
+            where: { id: goalId, userId, deleted: false },
+            transaction 
+          }
+        ),
+        
+        // 软删除目标完成记录
+        this.goalCompletionModel.update(
+          { deleted: true },
+          { 
+            where: { goalId, userId, deleted: false },
+            transaction 
+          }
+        ),
+        
+        // 软删除与目标关联的任务
+        this.goalTaskModel.update(
+          { deleted: true },
+          { 
+            where: { goalId, userId, deleted: false },
+            transaction 
+          }
+        ),
+      ]);
 
-      // 软删除相关的完成记录
-      await this.goalCompletionModel.update(
-        { deleted: true },
-        { where: { goalId, userId } }
-      );
+      // 提交事务
+      await transaction.commit();
 
       this.logger.log(`用户 ${userId} 删除了目标: ${goal.title}`);
       return true;
     } catch (error) {
+      // 回滚事务
+      await transaction.rollback();
       this.logger.error(`删除目标失败: ${error.message}`);
       throw error;
     }