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/archive/archive.service.ts

@@ -3,7 +3,7 @@ import { InjectRepository } from '@nestjs/typeorm';
 import { Repository } from 'typeorm';
 import * as fs from 'fs';
 import * as path from 'path';
-import { CampusScope } from '../common/campus-scope';
+
 import { NotificationsService } from '../notifications/notifications.service';
 import { Student } from '../entities/student.entity';
 import { StudentProfile } from '../entities/student-profile.entity';
@@ -30,7 +30,6 @@ export class ArchiveService {
     @InjectRepository(LearningRecord) private learningRecordRepo: Repository<LearningRecord>,
     @InjectRepository(ResultArchive) private resultRepo: Repository<ResultArchive>,
     @InjectRepository(ArchiveAttachment) private attachmentRepo: Repository<ArchiveAttachment>,
-    private readonly scope: CampusScope,
     private readonly notificationsService: NotificationsService,
   ) {}
 
@@ -46,24 +45,12 @@ export class ArchiveService {
       resultArchive,
       attachments,
     ] = await Promise.all([
-      this.profileRepo.findOne({ where: await this.scope.filter({ studentId }) }),
-      this.enrollmentRepo.find({
-        where: await this.scope.filter({ studentId }),
-        order: { createdAt: 'DESC' },
-      }),
-      this.examScoreRepo.find({
-        where: await this.scope.filter({ studentId }),
-        order: { examDate: 'DESC' },
-      }),
-      this.learningRecordRepo.find({
-        where: await this.scope.filter({ studentId }),
-        order: { recordDate: 'DESC' },
-      }),
-      this.resultRepo.findOne({ where: await this.scope.filter({ studentId }) }),
-      this.attachmentRepo.find({
-        where: await this.scope.filter({ studentId }),
-        order: { createdAt: 'DESC' },
-      }),
+      this.profileRepo.findOne({ where: { studentId } }),
+      this.enrollmentRepo.find({ where: { studentId }, order: { createdAt: 'DESC' } }),
+      this.examScoreRepo.find({ where: { studentId }, order: { examDate: 'DESC' } }),
+      this.learningRecordRepo.find({ where: { studentId }, order: { recordDate: 'DESC' } }),
+      this.resultRepo.findOne({ where: { studentId } }),
+      this.attachmentRepo.find({ where: { studentId }, order: { createdAt: 'DESC' } }),
     ]);
 
     return {