feat: add batch-import students to class endpoint

apps/server/src/classes/classes.controller.ts

@@ -21,6 +21,7 @@ import {
   AddTeacherDto,
   QueryClassScheduleDto,
   QueryClassAttendanceSummaryDto,
+  BatchImportStudentsDto,
 } from './dto/class.dto';
 import { JwtAuthGuard } from '../auth/guards/jwt-auth.guard';
 import { OperationLogsService } from '../operation-logs/operation-logs.service';
@@ -107,6 +108,16 @@ export class ClassesController {
     return result;
   }
 
+  /** 批量导入学生到班级（通过钉钉用户ID） */
+  @Post(':id/students/import')
+  @RequirePermission('class:edit')
+  async batchImportStudents(
+    @Param('id') id: string,
+    @Body() dto: BatchImportStudentsDto,
+  ) {
+    return this.service.batchImportStudents(+id, dto.dingUserIds);
+  }
+
   /** 归档班级 */
   @Put(':id/archive')
   @RequirePermission('class:edit')