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/deposits/deposits.service.ts

@@ -4,7 +4,7 @@ import { Repository } from 'typeorm';
 import { Deposit } from '../entities/deposit.entity';
 import { Student } from '../entities/student.entity';
 import { DepositInstallment } from '../entities/deposit-installment.entity';
-import { CampusScope } from '../common/campus-scope';
+
 import { CreateDepositDto, RefundDepositDto, CreateDepositWithInstallmentsDto } from './dto/deposit.dto';
 
 @Injectable()
@@ -16,17 +16,14 @@ export class DepositsService {
     private installmentRepo: Repository<DepositInstallment>,
     @InjectRepository(Student)
     private studentRepo: Repository<Student>,
-    private readonly scope: CampusScope,
   ) {}
 
   async findAll(query?: { studentId?: number; status?: string }) {
-    const scopeIds = await this.scope.getScopeDepartmentIds();
     const qb = this.repo
       .createQueryBuilder('d')
       .leftJoinAndSelect('d.student', 'student')
       .leftJoinAndSelect('d.installments', 'installments')
       .orderBy('d.createdAt', 'DESC');
-    if (scopeIds) qb.andWhere('d.departmentId IN (:...scopeIds)', { scopeIds });
     if (query?.studentId) qb.andWhere('d.studentId = :studentId', { studentId: query.studentId });
     if (query?.status) qb.andWhere('d.status = :status', { status: query.status });
     return qb.getMany();
@@ -49,7 +46,6 @@ export class DepositsService {
       status: 'paid',
       recordedBy: userId,
     });
-    deposit.departmentId = student.departmentId;
 
     if (dto instanceof CreateDepositWithInstallmentsDto && dto.installments?.length) {
       deposit.installments = dto.installments.map((i) => {
@@ -58,7 +54,6 @@ export class DepositsService {
           dueDate: i.dueDate,
           status: 'pending',
         });
-        inst.departmentId = student.departmentId;
         return inst;
       });
     }
@@ -174,11 +169,10 @@ export class DepositsService {
     return this.repo.save(deposit);
   }
   async findPendingRefunds() {
-    const baseWhere = await this.scope.filter({});
     return this.repo.find({
       where: [
-        { ...baseWhere, refundStatus: 'pending' },
-        { ...baseWhere, refundStatus: 'head_teacher_approved' },
+        { refundStatus: 'pending' },
+        { refundStatus: 'head_teacher_approved' },
       ],
       relations: ['student', 'installments'],
       order: { refundRequestedAt: 'DESC' },
@@ -193,13 +187,11 @@ export class DepositsService {
   }
 
   async getStats() {
-    const scopeIds = await this.scope.getScopeDepartmentIds();
     const qb = this.repo
       .createQueryBuilder('d')
       .select('d.status', 'status')
       .addSelect('COUNT(*)', 'count')
       .addSelect('SUM(d.amount)', 'totalAmount');
-    if (scopeIds) qb.andWhere('d.departmentId IN (:...scopeIds)', { scopeIds });
     qb.groupBy('d.status');
     return qb.getRawMany();
   }