完成了课时记录页面的两列布局改造，添加开始/结束时间选择器并自动计算时长，实现重复录入检测、消息自动隐藏、提交成功自动返回，以及多页面数据联动更新。

server/src/app.module.ts

@@ -1,12 +1,13 @@
 import { Module } from '@nestjs/common'
-import { AuthController, StudentController, RecordController } from '@/controllers'
-import { AuthService, StudentService, RecordService } from '@/services'
+import { AuthController, StudentController, RecordController, ScheduleController } from '@/controllers'
+import { AuthService, StudentService, RecordService, ScheduleService } from '@/services'
 
 @Module({
-  controllers: [AuthController, StudentController, RecordController],
+  controllers: [AuthController, StudentController, RecordController, ScheduleController],
   providers: [
     AuthService, 
-    RecordService, 
+    RecordService,
+    ScheduleService, 
     {
       provide: StudentService,
       useFactory: (recordService: RecordService) => {

server/src/controllers/index.ts

@@ -1,3 +1,4 @@
 export * from './auth.controller'
 export * from './student.controller'
 export * from './record.controller'
+export * from './schedule.controller'

server/src/dto/index.ts

@@ -1,3 +1,4 @@
 export * from './auth.dto'
 export * from './student.dto'
 export * from './record.dto'
+export * from './schedule.dto'

server/src/entities/index.ts

@@ -1,3 +1,4 @@
 export * from './user.entity'
 export * from './student.entity'
 export * from './record.entity'
+export * from './schedule.entity'

server/src/services/index.ts

@@ -1,4 +1,5 @@
 export * from './auth.service'
 export * from './student.service'
 export * from './record.service'
+export * from './schedule.service'
 export { RecordQueryResult, RecordStatistics } from './record.service'