init_object,增加了不完全的登录API，完善数据库设计

src/main/java/com/guo/learningprogresstracker/mapper/StudyExpectationsMapper.java

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+package com.guo.learningprogresstracker.mapper;
+
+import com.guo.learningprogresstracker.domain.entity.StudyExpectationsEntity;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.Mapper;
+
+/**
+* @author guo
+* @description 针对表【study_expectations(存储每次学习开始前的预期)】的数据库操作Mapper
+* @createDate 2024-06-09 15:28:48
+* @Entity com.guo.learningprogresstracker.entity.StudyExpectationsEntity
+*/
+@Mapper
+public interface StudyExpectationsMapper extends BaseMapper<StudyExpectationsEntity> {
+
+}
+
+
+
+

src/main/java/com/guo/learningprogresstracker/mapper/StudyReportFragmentsMapper.java

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+package com.guo.learningprogresstracker.mapper;
+
+import com.guo.learningprogresstracker.domain.entity.StudyReportFragmentsEntity;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.Mapper;
+
+/**
+* @author guo
+* @description 针对表【study_report_fragments(记录学习过程中的学习内容报告残片)】的数据库操作Mapper
+* @createDate 2024-06-09 15:28:48
+* @Entity com.guo.learningprogresstracker.entity.StudyReportFragmentsEntity
+*/
+@Mapper
+public interface StudyReportFragmentsMapper extends BaseMapper<StudyReportFragmentsEntity> {
+
+}
+
+
+
+

src/main/java/com/guo/learningprogresstracker/mapper/StudyReportsMapper.java

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+package com.guo.learningprogresstracker.mapper;
+
+import com.guo.learningprogresstracker.domain.entity.StudyReportsEntity;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.Mapper;
+
+/**
+* @author guo
+* @description 针对表【study_reports(存储每次学习结束时的完整学习报告)】的数据库操作Mapper
+* @createDate 2024-06-09 15:28:48
+* @Entity com.guo.learningprogresstracker.entity.StudyReportsEntity
+*/
+@Mapper
+public interface StudyReportsMapper extends BaseMapper<StudyReportsEntity> {
+
+}
+
+
+
+

src/main/java/com/guo/learningprogresstracker/mapper/StudySessionsMapper.java

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+package com.guo.learningprogresstracker.mapper;
+
+import com.guo.learningprogresstracker.domain.entity.StudySessionsEntity;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.Mapper;
+
+/**
+* @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Mapper
+* @createDate 2024-06-09 15:28:48
+* @Entity com.guo.learningprogresstracker.entity.StudySessionsEntity
+*/
+@Mapper
+public interface StudySessionsMapper extends BaseMapper<StudySessionsEntity> {
+
+}
+
+
+
+

src/main/java/com/guo/learningprogresstracker/mapper/TasksMapper.java

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+package com.guo.learningprogresstracker.mapper;
+
+import com.guo.learningprogresstracker.domain.entity.TasksEntity;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.Mapper;
+
+/**
+* @author guo
+* @description 针对表【tasks(存储学习任务的基本信息，包括优先级的多维度计算)】的数据库操作Mapper
+* @createDate 2024-06-09 15:28:48
+* @Entity com.guo.learningprogresstracker.entity.TasksEntity
+*/
+@Mapper
+public interface TasksMapper extends BaseMapper<TasksEntity> {
+
+}
+
+
+
+

src/main/java/com/guo/learningprogresstracker/mapper/UserMapper.java

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+package com.guo.learningprogresstracker.mapper;
+
+import com.guo.learningprogresstracker.domain.entity.UserEntity;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.Mapper;
+
+/**
+* @author guo
+* @description 针对表【user(用户信息表)】的数据库操作Mapper
+* @createDate 2024-06-09 15:28:48
+* @Entity com.guo.learningprogresstracker.entity.UserEntity
+*/
+@Mapper
+public interface UserMapper extends BaseMapper<UserEntity> {
+
+}
+
+
+
+

src/main/java/com/guo/learningprogresstracker/mapper/UserTaskMapper.java

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+package com.guo.learningprogresstracker.mapper;
+
+import com.guo.learningprogresstracker.domain.entity.UserTaskEntity;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.Mapper;
+
+/**
+* @author guo
+* @description 针对表【user_task(存储用户-任务之间的对应关系)】的数据库操作Mapper
+* @createDate 2024-06-09 15:28:48
+* @Entity com.guo.learningprogresstracker.entity.UserTaskEntity
+*/
+@Mapper
+public interface UserTaskMapper extends BaseMapper<UserTaskEntity> {
+
+}
+
+
+
+