feat(lessonplan): 实现基于AI的学案自动生成与管理功能

- 新增DifyArticleClient工具类，实现基于Dify API的对话与文本生成功能
- 创建LessonPlansService接口及其实现，实现学案按天生成及存储
- 设计LessonPlansDO和StudentLessonPlansDO数据对象及对应MyBatis映射和数据库操作
- 扩展VocabularyBankDO实体及Mapper，支持查询单元词汇和学生未掌握词汇
- 利用deepoove-poi模板技术生成Word格式的学习计划文档，包含词汇、复习和练习
- 开发StringToPlanMapUtil工具类，解析AI返回结果为结构化学案内容
- 新增JUnit测试用例验证AI对话功能及学案生成逻辑正确性
- 更新Spring Boot配置，添加AI接口地址及密钥等参数
- 在前端Vue项目中新建学案页面，路由配置及导航菜单支持学案访问

enlish-service/src/main/resources/mapper/GradeUnitDOMapper.xml

@@ -13,5 +13,11 @@
         where grade_id = #{gradeId}
     </select>
 
+    <select id="selectByUnitId" resultMap="BaseResultMap">
+        select *
+        from grade_unit
+        where unit_id = #{unitId}
+    </select>
+
 
 </mapper>

enlish-service/src/main/resources/mapper/LessonPlansDOMapper.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.yinlihupo.enlish.service.domain.mapper.LessonPlansDOMapper">
+    <resultMap id="BaseResultMap" type="com.yinlihupo.enlish.service.domain.dataobject.LessonPlansDO">
+        <id column="id" jdbcType="INTEGER" property="id" />
+        <result column="title" jdbcType="VARCHAR" property="title" />
+        <result column="grade_id" jdbcType="VARCHAR" property="gradeId" />
+        <result column="unit_id" jdbcType="INTEGER" property="unitId" />
+        <result column="created_at" jdbcType="TIMESTAMP" property="createdAt" />
+    </resultMap>
+    <resultMap extends="BaseResultMap" id="ResultMapWithBLOBs" type="com.yinlihupo.enlish.service.domain.dataobject.LessonPlansDO">
+        <result column="content_details" jdbcType="LONGVARCHAR" property="contentDetails" />
+    </resultMap>
+
+    <insert id="insert" useGeneratedKeys="true" keyProperty="id">
+        insert into lesson_plans (title, grade_id, unit_id, content_details, created_at)
+        values (#{title}, #{gradeId}, #{unitId}, #{contentDetails}, now())
+    </insert>
+    <select id="selectById" resultMap="ResultMapWithBLOBs">
+        select *
+        from lesson_plans
+        where id = #{id}
+    </select>
+
+</mapper>

enlish-service/src/main/resources/mapper/StudentLessonPlansDOMapper.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.yinlihupo.enlish.service.domain.mapper.StudentLessonPlansDOMapper">
+    <resultMap id="BaseResultMap" type="com.yinlihupo.enlish.service.domain.dataobject.StudentLessonPlansDO">
+        <id column="id" jdbcType="INTEGER" property="id" />
+        <result column="student_id" jdbcType="INTEGER" property="studentId" />
+        <result column="plan_id" jdbcType="INTEGER" property="planId" />
+        <result column="start_time" jdbcType="TIMESTAMP" property="startTime" />
+        <result column="mastery_rat" jdbcType="DECIMAL" property="masteryRat" />
+        <result column="total_count" jdbcType="INTEGER" property="totalCount" />
+    </resultMap>
+
+    <resultMap extends="BaseResultMap" id="ResultMapWithBLOBs" type="com.yinlihupo.enlish.service.domain.dataobject.StudentLessonPlansDO">
+        <result column="memorized_words_json" jdbcType="LONGVARCHAR" property="memorizedWordsJson" />
+        <result column="unmemorized_words_json" jdbcType="LONGVARCHAR" property="unmemorizedWordsJson" />
+    </resultMap>
+
+    <insert id="insert">
+        insert into student_lesson_plans (student_id, plan_id, start_time, mastery_rat, total_count)
+        values (#{studentId,jdbcType=INTEGER}, #{planId,jdbcType=INTEGER},
+        now(), 0.0, 0
+        )
+    </insert>
+
+</mapper>

enlish-service/src/main/resources/mapper/VocabularyBankDOMapper.xml

@@ -7,6 +7,7 @@
         <result column="definition" jdbcType="VARCHAR" property="definition" />
         <result column="pronunciation" jdbcType="VARCHAR" property="pronunciation" />
         <result column="unit_id" jdbcType="INTEGER" property="unitId" />
+        <result column="pos" jdbcType="VARCHAR" property="pos" />
     </resultMap>
 
 
@@ -28,6 +29,9 @@
             <if test="unitId != null">
                 unit_id,
             </if>
+            <if test="pos != null">
+                pos,
+            </if>
         </trim>
         <trim prefix="values (" suffix=")" suffixOverrides=",">
             <if test="id != null">
@@ -45,6 +49,9 @@
             <if test="unitId != null">
                 #{unitId,jdbcType=INTEGER},
             </if>
+            <if test="pos != null">
+                #{pos,jdbcType=VARCHAR},
+            </if>
         </trim>
     </insert>
 
@@ -69,4 +76,46 @@
         from vocabulary_bank
     </select>
 
+    <select id="selectVocabularyBankDOAllByUnitId" resultMap="BaseResultMap">
+        select *
+        from vocabulary_bank
+        where unit_id = #{unitId}
+    </select>
+
+    <select id="selectVocabularyBankListStudentNotMaster" resultMap="BaseResultMap">
+    <![CDATA[
+        select *
+        from vocabulary_bank
+        where unit_id in (
+            select unit_id
+            from grade_unit
+            where grade_id = #{gradeId}
+        )
+            and id in (
+                select word_id
+                from word_mastery_log
+                where memory_strength < 0
+                    and student_id = #{studentId}
+            )
+        ]]>
+    </select>
+
+    <select id="selectVocabularyBankListSelfCheck" resultMap="BaseResultMap">
+        select *
+        from vocabulary_bank vb
+        inner join grade_unit gu on vb.unit_id = gu.unit_id
+        inner join word_mastery_log wml on vb.id = wml.word_id
+        where gu.grade_id = #{gradeId}
+        and wml.student_id = #{studentId}
+        <!-- 修复not in的语法错误 + 空集合防护 -->
+        <if test="ids != null and ids.size() > 0">
+            and vb.id not in (
+            <foreach item="id" collection="ids" separator=",">
+                #{id}
+            </foreach>
+            )
+        </if>
+        limit #{wordCount}
+    </select>
+
 </mapper>