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/occupancies/occupancies.controller.ts

@@ -12,6 +12,7 @@ import {
   Res,
   UseInterceptors,
   UploadedFile,
+  BadRequestException,
 } from '@nestjs/common';
 import { InjectRepository } from '@nestjs/typeorm';
 import { Repository } from 'typeorm';
@@ -206,7 +207,8 @@ export class OccupanciesController {
       { header: '学生姓名', key: 'studentName', width: 12 },
       { header: '性别', key: 'gender', width: 8 },
       { header: '电话', key: 'phone', width: 18 },
-      { header: '学号/身份证', key: 'idNumber', width: 22 },
+      { header: '学号', key: 'studentNo', width: 15 },
+      { header: '身份证号', key: 'idNumber', width: 22 },
       { header: '负责人/班主任', key: 'supervisor', width: 15 },
       { header: '入住日期', key: 'checkInDate', width: 14 },
       { header: '退宿日期', key: 'checkOutDate', width: 14 },
@@ -227,6 +229,7 @@ export class OccupanciesController {
         studentName: r.student?.name || '',
         gender: r.student?.gender || '',
         phone: r.student?.phone || '',
+        studentNo: r.student?.studentNo || '',
         idNumber: r.student?.idNumber || '',
         supervisor: r.student?.supervisor || '',
         checkInDate: r.checkInDate || '',
@@ -270,13 +273,14 @@ export class OccupanciesController {
     @Query('depositAmount') depositAmount?: string,
   ) {
     const { ipAddress, userAgent } = extractRequestInfo(req);
+    if (!file?.buffer) throw new BadRequestException('请上传入住名单 Excel 文件');
     const workbook = new ExcelJS.Workbook();
     await workbook.xlsx.load(file.buffer as any);
     const ws = workbook.worksheets[0];
     const rows = parseOccupancyImportWorksheet(ws);
     const result = await this.service.batchImportCheckIn(rows, {
       autoDeposit: autoDeposit === 'true',
-      depositAmount: depositAmount ? +depositAmount : undefined,
+      depositAmount: depositAmount?.trim() ? Number(depositAmount) : undefined,
     });
     await this.logService.log({
       userId: req.user?.id,