增加修改和删除功能

backend-single/src/main/java/com/emotion/service/impl/GuestUserServiceImpl.java

@@ -223,13 +223,10 @@ public class GuestUserServiceImpl extends ServiceImpl<GuestUserMapper, GuestUser
         LocalDateTime expireTime = LocalDateTime.now().minusDays(days);
 
         LambdaQueryWrapper<GuestUser> wrapper = new LambdaQueryWrapper<>();
-        wrapper.lt(GuestUser::getLastActiveTime, expireTime)
-                .eq(GuestUser::getIsDeleted, 0);
+        wrapper.lt(GuestUser::getLastActiveTime, expireTime);
 
-        GuestUser updateUser = new GuestUser();
-        updateUser.setIsDeleted(1);
-
-        return this.update(updateUser, wrapper);
+        // 使用 MyBatis-Plus 的 remove 方法，自动处理逻辑删除
+        return this.remove(wrapper);
     }
 
     @Override
@@ -285,13 +282,12 @@ public class GuestUserServiceImpl extends ServiceImpl<GuestUserMapper, GuestUser
     @Override
     public boolean deleteGuestUser(String id) {
         GuestUser guestUser = this.getById(id);
-        if (guestUser == null || guestUser.getIsDeleted() == 1) {
+        if (guestUser == null) {
             return false;
         }
 
-        // 逻辑删除
-        guestUser.setIsDeleted(1);
-        return this.updateById(guestUser);
+        // 使用 MyBatis-Plus 的 removeById 方法，自动处理逻辑删除
+        return this.removeById(id);
     }
 
     /**