feat(exam): 增加试卷结果分页查询接口及前端显示功能

- 新增ExamWordsResultReqVO和ExamWordsResultRspVO用于请求与响应封装
- ExamWordsController新增getExamWordsResult方法支持分页查询试卷结果
- ExamWordsJudgeService接口及实现中添加分页获取试卷结果方法及统计总数
- Mapper层添加分页查询和统计的SQL语句支持
- Vue前端uploadpng页面优化为两列布局，新增结果集表格与分页控件
- 上传功能改用自定义http-request，上传后自动刷新结果列表
- Class页面调整布局增加额外展示内容
- 删除未使用接口ExamWordsJudge接口及相关引用
- 重命名ExamWordsJudge相关类和测试类以统一命名规范

enlish-vue/src/pages/uploadpng.vue

@@ -0,0 +1,113 @@
+<template>
+    <div class="common-layout">
+        <el-container>
+            <el-header>
+                <Header></Header>
+            </el-header>
+
+            <el-main class="p-4">
+                <div class="grid grid-cols-1 lg:grid-cols-2 gap-6">
+                    <div class="bg-white dark:bg-gray-800 rounded-lg shadow p-6">
+                        <div class="text-lg font-semibold mb-4">上传图片</div>
+                        <el-upload
+                            :show-file-list="false"
+                            :http-request="doUpload"
+                            accept="image/*"
+                        >
+                            <el-button type="primary">选择图片并上传</el-button>
+                        </el-upload>
+                    </div>
+                    <div class="bg-white dark:bg-gray-800 rounded-lg shadow p-6">
+                        <div class="text-lg font-semibold mb-4">结果集</div>
+                        <el-table
+                            :data="list"
+                            border
+                            class="w-full"
+                            v-loading="loading"
+                        >
+                            <el-table-column prop="id" label="ID" width="80" />
+                            <el-table-column prop="studentId" label="学生ID" width="100" />
+                            <el-table-column prop="examWordsId" label="试题ID" width="100" />
+                            <el-table-column prop="correctWordCount" label="正确词数" width="110" />
+                            <el-table-column prop="wrongWordCount" label="错误词数" width="110" />
+                            <el-table-column label="完成状态" width="110">
+                                <template #default="{ row }">
+                                    <el-tag :type="row.isFinished === 1 ? 'success' : 'info'">
+                                        {{ row.isFinished === 1 ? '已完成' : '未完成' }}
+                                    </el-tag>
+                                </template>
+                            </el-table-column>
+                            <el-table-column prop="startDate" label="开始时间" min-width="160" />
+                            <el-table-column prop="errorMsg" label="错误信息" min-width="160" />
+                        </el-table>
+                        <div class="mt-4 flex justify-end">
+                            <el-pagination
+                                background
+                                layout="prev, pager, next, sizes, total"
+                                :total="totalCount"
+                                :page-size="pageSize"
+                                :current-page="pageNo"
+                                @current-change="handlePageChange"
+                                @size-change="handleSizeChange"
+                            />
+                        </div>
+                    </div>
+                </div>
+            </el-main>
+
+        </el-container>
+    </div>
+</template>
+
+
+<script setup>
+import Header from '@/layouts/components/Header.vue'
+import { ref, onMounted } from 'vue'
+import { uploadExamWordsPng, getExamWordsResult } from '@/api/exam'
+
+const list = ref([])
+const pageNo = ref(1)
+const pageSize = ref(10)
+const totalCount = ref(0)
+const loading = ref(false)
+
+async function fetchList() {
+    loading.value = true
+    try {
+        const res = await getExamWordsResult(pageNo.value, pageSize.value)
+        const d = res.data
+        list.value = Array.isArray(d.data) ? d.data : []
+        totalCount.value = d.totalCount || 0
+        pageNo.value = d.pageNo || pageNo.value
+        pageSize.value = d.pageSize || pageSize.value
+    } finally {
+        loading.value = false
+    }
+}
+
+function handlePageChange(p) {
+    pageNo.value = p
+    fetchList()
+}
+function handleSizeChange(s) {
+    pageSize.value = s
+    pageNo.value = 1
+    fetchList()
+}
+
+async function doUpload(options) {
+    const file = options.file
+    const formData = new FormData()
+    formData.append('file', file)
+    await uploadExamWordsPng(formData)
+    ElMessage.success('上传成功，已开始生成结果')
+    fetchList()
+}
+
+onMounted(() => {
+    fetchList()
+})
+</script>
+
+<style scoped>
+</style>