feat: 多班级版 v2.0 - Go后端重写 + 43轮代码审查

- 后端从 Python FastAPI 重写为 Go Gin（端口 56789）
- 多班级完全隔离
- 超级管理员独立登录
- 课代表作业管理、排行榜分项排行
- 角色加减分上下限可配置
- 家长改密功能（可开关）
- 周度/月度重置功能
- MySQL 5.7 兼容
- 43轮代码审查+全部修复
- Apache 2.0 许可证

frontend/assets/js/conduct.js

@@ -1,5 +1,5 @@
 /**
- * 班级操行分管理系统 - 操行分管理页JS
+ * 多班级版班级管理系统 - 操行分管理页JS
  * 
  * 开发者: Canglan
  * 版权归属: Sea Network Technology Studio
@@ -20,7 +20,7 @@ async function loadStudents() {
                 <td>${escapeHtml(student.student_no)}</td>
                 <td><a href="/admin/history.php?student_id=${student.student_id}" class="link">${escapeHtml(student.name)}</a></td>
                 <td>${student.total_points}</td>
-                <td><button class="btn btn-sm btn-outline" onclick="showSinglePointsModal(${student.student_id}, '${escapeHtml(student.name)}')">加减分</button></td>
+                <td><button class="btn btn-sm btn-outline js-single-points" data-student-id="${student.student_id}" data-student-name="${escapeHtml(student.name)}">加减分</button></td>
             </tr>`;
         });
         if (res.data.students.length === 0) {
@@ -39,7 +39,7 @@ function showSinglePointsModal(studentId, studentName) {
 }
 
 async function exportMoralityRecords() {
-    showToast('正在导出德育分记录...', 'info');
+    showToast('正在导出操行分记录...', 'info');
     
     try {
         const studentsRes = await apiGet('/api/admin/students', { page_size: 1000 });
@@ -54,13 +54,20 @@ async function exportMoralityRecords() {
             return;
         }
         
-        const historyRes = await apiGet('/api/admin/conduct/history', { page: 1, page_size: 1000 });
-        if (!historyRes || !historyRes.success) {
-            showToast('获取历史记录失败', 'error');
-            return;
-        }
-        
-        const allRecords = historyRes.data.records || [];
+        const allRecords = [];
+        let page = 1;
+        let totalPages = 1;
+        do {
+            const historyRes = await apiGet('/api/admin/conduct/history', { page: page, page_size: 500 });
+            if (!historyRes || !historyRes.success) {
+                showToast('获取历史记录失败', 'error');
+                return;
+            }
+            const records = historyRes.data.records || [];
+            allRecords.push(...records);
+            totalPages = historyRes.data.total_pages || 1;
+            page++;
+        } while (page <= totalPages);
         
         const recordsByStudent = {};
         allRecords.forEach(record => {
@@ -90,7 +97,7 @@ async function exportMoralityRecords() {
             if (field === null || field === undefined) return '';
             let str = String(field).replace(/[\r\n]+/g, ' ');
             str = str.replace(/"/g, '""');
-            if (/[\,\;\"\s]/.test(str)) {
+            if (/[\,\"\s]/.test(str)) {
                 str = '"' + str + '"';
             }
             return str;
@@ -106,7 +113,7 @@ async function exportMoralityRecords() {
         const url = URL.createObjectURL(blob);
         const link = document.createElement('a');
         link.href = url;
-        link.download = `德育分记录_${new Date().toISOString().slice(0,10)}.csv`;
+        link.download = `操行分记录_${new Date().toISOString().slice(0,10)}.csv`;
         document.body.appendChild(link);
         link.click();
         document.body.removeChild(link);
@@ -119,7 +126,7 @@ async function exportMoralityRecords() {
     }
 }
 // 宿舍集体加分相关
-var dormitoryStudentIds = [];
+let dormitoryStudentIds = [];
 
 async function showDormitoryPointsModal() {
     dormitoryStudentIds = [];
@@ -196,6 +203,11 @@ async function submitDormitoryPoints() {
         return;
     }
     
+    if (Math.abs(pointsChange) > 100) {
+        showToast('分值绝对值不能超过100', 'error');
+        return;
+    }
+    
     if (!reason.trim()) {
         showToast('请填写原因', 'error');
         return;
@@ -204,7 +216,8 @@ async function submitDormitoryPoints() {
     const data = {
         student_ids: dormitoryStudentIds,
         points_change: pointsChange,
-        reason: reason
+        reason: reason,
+        related_type: 'manual'
     };
     
     const res = await apiPost('/api/admin/conduct/add', data);
@@ -220,6 +233,16 @@ async function submitDormitoryPoints() {
 
 loadStudents();
 
+document.getElementById('studentList').addEventListener('click', function(e) {
+    const btn = e.target.closest('.js-single-points');
+    if (btn) {
+        showSinglePointsModal(
+            parseInt(btn.dataset.studentId, 10),
+            btn.dataset.studentName
+        );
+    }
+});
+
 window.loadStudents = loadStudents;
 window.showSinglePointsModal = showSinglePointsModal;
 window.exportMoralityRecords = exportMoralityRecords;