[xingyu.guo] feat: 【获取【学习会话】所有的学习残片数据，以列表返回】API

src/main/java/com/guo/learningprogresstracker/service/StudySessionsService.java

@@ -5,6 +5,8 @@ import com.guo.learningprogresstracker.entity.StudySessionsEntity;
 import com.baomidou.mybatisplus.extension.service.IService;
 import com.guo.learningprogresstracker.exception.ErrorParameterException;
 
+import java.util.ArrayList;
+
 /**
 * @author guo
 * @description 针对表【study_sessions(记录每次学习会话的具体数据)】的数据库操作Service
@@ -13,4 +15,6 @@ import com.guo.learningprogresstracker.exception.ErrorParameterException;
 public interface StudySessionsService extends IService<StudySessionsEntity> {
 
     StudySessionResponce getNotEndedStudySessionByTaskNum(String taskNum) throws ErrorParameterException;
+
+    ArrayList<String> getAllFragments(String sessionNum) throws ErrorParameterException;
 }