refactor(meeting): 将学生ID从长ID改为短ID以优化性能

- 修改SaveStudentOrderDto中的studentLongIds字段为studentShortIds
- 更新MeetingController中保存和传输的学生ID参数名称
- 重构MeetingRedisService中setStudentOrder方法参数为studentShortIds
- 调整WebSocket通信中的学生ID字段名称一致性
- 在前端API调用中使用studentShortIds替代studentLongIds
- 添加监控端对学生排序变更事件的处理逻辑
- 更新学生排序对话框中使用的ID映射方式

node_api/src/modules/websocket/meeting-redis.service.ts

@@ -502,14 +502,14 @@ export class MeetingRedisService {
   /**
    * 设置学生排序顺序
    * @param roomId - 房间 ID
-   * @param studentLongIds - 学生长 ID 数组 (按排序顺序)
+   * @param studentShortIds - 学生短 ID 数组 (按排序顺序)
    */
-  async setStudentOrder(roomId: string, studentLongIds: number[]): Promise<void> {
+  async setStudentOrder(roomId: string, studentShortIds: number[]): Promise<void> {
     const key = `${this.KEY_PREFIX.STUDENT_ORDER}${roomId}`;
     const client = this.getClient();
     await client.del(key); // 先删除旧数据
-    if (studentLongIds.length > 0) {
-      const stringIds = studentLongIds.map((id) => String(id));
+    if (studentShortIds.length > 0) {
+      const stringIds = studentShortIds.map((id) => String(id));
       await client.rpush(key, ...stringIds);
       await client.expire(key, 24 * 60 * 60);
     }