feat(plan): 支持学案生成时指定单词数

- 在 AddLessonPlanReqVO 中新增 wordSize 字段
- 修改 LessonPlansService 接口及实现，支持 wordSize 参数
- 优化学案生成逻辑，按指定单词数切分词汇列表
- 更新前端 LessonPlanDialog，添加单词数输入框
- 修改生成学案接口及调用，传递 wordSize 参数
- 增加查询学生词汇掌握详情接口及实现
- 添加学生词汇统计展示组件及页面集成
- 调整词汇相关 Mapper，修正记忆强度条件范围
- 更新权限配置，允许访问学生单词详情接口

enlish-vue/src/api/plan.js

@@ -1,9 +1,10 @@
 import axios from "@/axios";
 
-export function generateLessonPlan(studentId, unitId) {
+export function generateLessonPlan(studentId, unitId, wordSize = 0) {
     return axios.post('/plan/generate', {
         studentId: studentId,
-        unitId: unitId
+        unitId: unitId,
+        wordSize: wordSize
     })
 }
 

enlish-vue/src/api/words.js

@@ -4,4 +4,10 @@ export function getWordsListByIds(ids) {
     return axios.post('/vocabulary/list', {
         ids: ids
     })
-}
+}
+
+export function getWordStudentDetail(studentId) {
+    return axios.post('/vocabulary/student/detail', {
+        id: studentId
+    })
+}

enlish-vue/src/layouts/components/LessonPlanDialog.vue

@@ -12,6 +12,9 @@
 						/>
 					</el-select>
 				</el-form-item>
+				<el-form-item label="单词数">
+					<el-input v-model="wordSize" type="number" placeholder="请输入单词数" style="width: 300px" />
+				</el-form-item>
 			</el-form>
 			<div class="text-sm text-gray-500">
 				学生ID：{{ studentId }}
@@ -45,6 +48,7 @@ const visible = computed({
 
 const loading = ref(false)
 const unitId = ref(null)
+const wordSize = ref(0)
 const unitOptions = ref([])
 
 async function fetchUnits() {
@@ -63,7 +67,7 @@ async function fetchUnits() {
 
 async function handleGenerate() {
 	if (!unitId.value || !props.studentId) return
-	const res = await generateLessonPlan(Number(props.studentId), Number(unitId.value))
+	const res = await generateLessonPlan(Number(props.studentId), Number(unitId.value), Number(wordSize.value))
 	const d = res?.data
 	if (d.success) {
 		ElMessage.success('生成学案任务已提交，请等待十分钟')

enlish-vue/src/pages/student.vue

@@ -6,8 +6,7 @@
             </el-header>
 
             <el-main class="p-4">
-                <div class="grid grid-cols-1 lg:grid-cols-1 gap-6"
-                    v-loading="loading">
+                <div class="grid grid-cols-1 lg:grid-cols-2 gap-6" v-loading="loading">
                     <div class="bg-white dark:bg-gray-800 rounded-lg shadow p-6">
                         <div class="text-lg font-semibold mb-4">学生详情</div>
                         <template v-if="detail">
@@ -24,6 +23,20 @@
                         </template>
                     </div>
 
+                    <div class="bg-white dark:bg-gray-800 rounded-lg shadow p-6">
+                        <div class="text-lg font-semibold mb-4">学生词汇统计</div>
+                        <template v-if="wordStat">
+                            <el-descriptions :column="1" border>
+                                <el-descriptions-item label="已掌握">{{ wordStat.masteredWordCount }}</el-descriptions-item>
+                                <el-descriptions-item label="未掌握">{{ wordStat.unmasteredWordCount }}</el-descriptions-item>
+                                <el-descriptions-item label="待复习">{{ wordStat.pendingReviewWordCount }}</el-descriptions-item>
+                            </el-descriptions>
+                        </template>
+                        <template v-else>
+                            <el-empty description="暂无统计" />
+                        </template>
+                    </div>
+
                     <div class="bg-white dark:bg-gray-800 rounded-lg shadow p-6">
                         <div class="text-md font-semibold mb-3">学生考试记录</div>
                         <ExamHistoryChart :data="history" />
@@ -63,6 +76,7 @@ import { ref, onMounted, computed } from 'vue'
 import { useRoute } from 'vue-router'
 import { getStudentDetail, getStudentStudyAnalyze } from '@/api/student'
 import { getStudentExamHistory } from '@/api/exam'
+import { getWordStudentDetail } from '@/api/words'
 import ExamHistoryChart from '@/layouts/components/student/ExamHistoryChart.vue'
 import PlanHistoryChart from '@/layouts/components/student/PlanHistoryChart.vue'
 import WordMasteryHeatmap from '@/layouts/components/student/WordMasteryHeatmap.vue'
@@ -74,6 +88,7 @@ const route = useRoute()
 const history = ref([])
 const analyzeLoading = ref(false)
 const analysisText = ref('')
+const wordStat = ref(null)
 const md = new MarkdownIt({
     html: false,
     linkify: true,
@@ -122,8 +137,17 @@ async function fetchStudyAnalyze() {
     }
 }
 
+async function fetchWordStat() {
+    const id = route.params.id
+    if (!id) return
+    const res = await getWordStudentDetail(Number(id))
+    const d = res.data
+    wordStat.value = d?.data || null
+}
+
 onMounted(() => {
     fetchDetail()
     fetchExamHistory()
+    fetchWordStat()
 })
 </script>