refactor(server): remove Department/UserDepartment entities, CampusScope, and departmentId from all entities

- Delete department.entity.ts, user-department.entity.ts
- Remove Department/UserDepartment from entities/index.ts
- Remove departmentId column from 18 entities (AttendanceRecord, ArchiveAttachment, Bill, ClassSchedule, Classroom, ClassroomRental, Deposit, DepositInstallment, ExamScore, LearningRecord, Occupancy, PersonalExpense, ResultArchive, Room, RoomExpense, Student, StudentEnrollment, StudentProfile, StudentReport)
- Remove departments/ module entirely
- Delete campus-scope.ts, campus-scope.middleware.ts (request-utils.ts kept — it's just IP extraction)
- Simplify common.module.ts to empty module
- Remove CampusScopeMiddleware from app.module.ts
- Remove all CampusScope injections and filter calls across all services
- Remove departmentId from all DTOs and controllers
- Simplify dingtalk/wecom sync to only sync users (no dept table)
- Update seed module to remove department seeding
- Clean frontend compilation

apps/server/src/schedules/schedules.service.ts

@@ -2,7 +2,7 @@ import { Injectable, NotFoundException, ConflictException } from '@nestjs/common
 import { InjectRepository } from '@nestjs/typeorm';
 import { Repository } from 'typeorm';
 import { ClassSchedule, Class, ClassroomRental } from '../entities';
-import { CampusScope } from '../common/campus-scope';
+
 import {
   CreateScheduleDto,
   UpdateScheduleDto,
@@ -15,7 +15,6 @@ export class SchedulesService {
   constructor(
     @InjectRepository(ClassSchedule)
     private readonly scheduleRepo: Repository<ClassSchedule>,
-    private readonly scope: CampusScope,
     @InjectRepository(Class) private readonly classRepo: Repository<Class>,
     @InjectRepository(ClassroomRental)
     private readonly rentalRepo: Repository<ClassroomRental>,
@@ -23,10 +22,6 @@ export class SchedulesService {
 
   async findAll(query: QueryScheduleDto) {
     const qb = this.scheduleRepo.createQueryBuilder('cs');
-    const scopeIds = await this.scope.getScopeDepartmentIds();
-    if (scopeIds) {
-      qb.andWhere('cs.departmentId IN (:...scopeIds)', { scopeIds });
-    }
 
     if (query.classroomId) qb.andWhere('cs.classroomId = :classroomId', { classroomId: query.classroomId });
     if (query.classId) qb.andWhere('cs.classId = :classId', { classId: query.classId });
@@ -50,9 +45,6 @@ export class SchedulesService {
     await this.checkConflict(dto.classroomId, dto.weekDay, dto.startTime, dto.endTime, dto.startDate, dto.endDate);
 
     const schedule = this.scheduleRepo.create(dto);
-    if (dto.departmentId) {
-      schedule.departmentId = dto.departmentId;
-    }
     const saved = await this.scheduleRepo.save(schedule);
     return this.findOne(saved.id);
   }
@@ -130,10 +122,6 @@ export class SchedulesService {
 
   async getWeeklyView(query: WeeklyViewQueryDto) {
     const qb = this.scheduleRepo.createQueryBuilder('cs');
-    const scopeIds = await this.scope.getScopeDepartmentIds();
-    if (scopeIds) {
-      qb.andWhere('cs.departmentId IN (:...scopeIds)', { scopeIds });
-    }
     if (query.classroomId) {
       qb.andWhere('cs.classroomId = :classroomId', { classroomId: query.classroomId });
     }