feat: 拆分学号/身份证字段 + 考勤教师展示 + 代码优化

- 入住导入模板：学号和身份证号拆为独立字段，前后端对齐
- 排课查询关联教师，考勤归档页展示教师姓名
- 抽查时段增加 IsIn 校验
- 抽取 withPessimisticWriteLock 去重悲观锁查询
- import 增加文件空 buffer 校验
- 测试 mock 补全，适配事务 manager
- MySQL init.sql VALUES() 语法兼容修复

apps/server/src/attendance/attendance.lesson-session.spec.ts

@@ -45,6 +45,7 @@ const createService = () => {
     {} as never,
     sessionRepo as never,
     attendanceDeviceRepo as never,
+    {} as never,
     dataSource as unknown as DataSource,
   );
   return { service, attendanceRepo, dingRawRepo, scheduleRepo, classStudentRepo, sessionRepo, attendanceDeviceRepo, dataSource };