fix(sms):修正重置标记逻辑以避免不必要的更新

- 在重置生日发送标记时添加条件判断
- 在重置节假日发送标记时添加条件判断
- 避免将未设置标记的数据错误地更新为0

src/main/java/com/whdc/mapper/SmsSpecialistMapper.java

@@ -11,9 +11,9 @@ import org.apache.ibatis.annotations.Update;
  * @since 2025-09-23
  */
 public interface SmsSpecialistMapper extends BaseMapper<SmsSpecialist> {
-    @Update("update specialist set flag_birthday_sent_today = 0")
+    @Update("update specialist set flag_birthday_sent_today = 0 where flag_birthday_sent_today = 1")
     void resetFlagBirthdaySentToday();
 
-    @Update("update specialist set flag_holiday_sent_today = 0")
+    @Update("update specialist set flag_holiday_sent_today = 0 where flag_holiday_sent_today = 1")
     void resetFlagHolidaySentToday();
 }