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/assets/js/admin.js

@@ -297,4 +297,79 @@ document.addEventListener('DOMContentLoaded', () => {
     if (fileInput) {
         fileInput.addEventListener('change', previewImportFile);
     }
-});
+});
+
+// ===== 学生编辑/删除/重置密码 =====
+
+function showEditStudentModal(studentId, studentNo, name, phone) {
+    document.getElementById('editStudentId').value = studentId;
+    document.getElementById('editStudentNo').value = studentNo;
+    document.getElementById('editStudentName').value = name;
+    document.getElementById('editStudentPhone').value = phone || '';
+    document.getElementById('editStudentModal').style.display = 'flex';
+}
+
+async function submitEditStudent() {
+    const studentId = document.getElementById('editStudentId').value;
+    const name = document.getElementById('editStudentName').value.trim();
+    const phone = document.getElementById('editStudentPhone').value.trim();
+    
+    if (!name) {
+        showToast('请输入姓名', 'warning');
+        return;
+    }
+    
+    const res = await apiPut(`/api/admin/students/${studentId}`, {
+        name: name,
+        parent_phone: phone || null
+    });
+    
+    if (res && res.success) {
+        showToast('学生信息更新成功');
+        closeModal('editStudentModal');
+        location.reload();
+    } else {
+        showToast(res?.message || '更新失败', 'error');
+    }
+}
+
+function showResetStudentPasswordModal(studentId, name) {
+    document.getElementById('resetStudentId').value = studentId;
+    document.getElementById('resetStudentInfo').textContent = `正在重置学生 "${name}" 的密码`;
+    document.getElementById('newStudentPassword').value = '';
+    document.getElementById('resetStudentPasswordModal').style.display = 'flex';
+}
+
+async function submitResetStudentPassword() {
+    const studentId = document.getElementById('resetStudentId').value;
+    const newPassword = document.getElementById('newStudentPassword').value;
+    
+    if (!newPassword || newPassword.length < 6) {
+        showToast('密码至少6位', 'warning');
+        return;
+    }
+    
+    const res = await apiPost(`/api/admin/students/reset-password/${studentId}`, {
+        new_password: newPassword
+    });
+    
+    if (res && res.success) {
+        showToast('密码重置成功');
+        closeModal('resetStudentPasswordModal');
+    } else {
+        showToast(res?.message || '重置失败', 'error');
+    }
+}
+
+async function deleteStudent(studentId, name) {
+    if (!confirm(`确定要删除学生 "${name}" 吗？删除后学生账号将被禁用。`)) return;
+    
+    const res = await apiDelete(`/api/admin/students/${studentId}`);
+    
+    if (res && res.success) {
+        showToast('学生删除成功');
+        location.reload();
+    } else {
+        showToast(res?.message || '删除失败', 'error');
+    }
+}