The batchCheckOut method was not releasing assigned beds and lockers
after checkout, leaving them orphaned as 'occupied'. Added the same
release pattern used in checkOut() — using runner.manager.update()
since batchCheckOut operates inside a QueryRunner transaction.
- Add GET /classes/:id/schedule returning ClassSchedule list with classroom name
- Add GET /classes/:id/attendance-summary returning attendance/absence/late rates
- Add 课表 and 出勤汇总 tabs to Classes detail page
- Register ClassSchedule and AttendanceRecord in ClassesModule
