feat: 增加学生信息管理功能，优化操行分历史记录展示并更新使用文档

frontend/admin/conduct.php

@@ -69,7 +69,7 @@ async function loadStudents() {
             html += `<tr>
                 <td><input type="checkbox" class="student-checkbox" data-id="${student.student_id}"></td>
                 <td>${escapeHtml(student.student_no)}</td>
-                <td>${escapeHtml(student.name)}</td>
+                <td><a href="/admin/history.php?student_id=${student.student_id}" style="color: #3498db; text-decoration: none;">${escapeHtml(student.name)}</a></td>
                 <td>${student.total_points}</td>
                 <td><button class="btn btn-sm btn-primary" onclick="showSinglePointsModal(${student.student_id}, '${escapeHtml(student.name)}')">加减分</button></td>
             </tr>`;