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/entities/archive-attachment.entity.ts

@@ -8,7 +8,6 @@ import {
   JoinColumn,
 } from 'typeorm';
 import { Student } from './student.entity';
-import { Department } from './department.entity';
 
 @Entity('archive_attachments')
 export class ArchiveAttachment {
@@ -37,12 +36,6 @@ export class ArchiveAttachment {
   @Column({ name: 'mime_type', length: 100, nullable: true })
   mimeType: string;
 
-  @Column({ name: 'department_id', type: 'integer', nullable: true })
-  departmentId: number;
-
-  @ManyToOne(() => Department, { nullable: true })
-  @JoinColumn({ name: 'department_id' })
-  department: Department;
 
   @CreateDateColumn({ name: 'created_at' })
   createdAt: Date;

apps/server/src/entities/attendance-record.entity.ts

@@ -10,7 +10,6 @@ import {
 } from 'typeorm';
 import { Student } from './student.entity';
 import { Class } from './class.entity';
-import { Department } from './department.entity';
 
 @Entity('attendance_records')
 @Index(['classId', 'attendanceDate'])
@@ -54,10 +53,4 @@ export class AttendanceRecord {
   @UpdateDateColumn({ name: 'updated_at' })
   updatedAt: Date;
 
-  @Column({ name: 'department_id', type: 'integer', nullable: true })
-  departmentId: number;
-
-  @ManyToOne(() => Department, { nullable: true })
-  @JoinColumn({ name: 'department_id' })
-  department: Department;
 }

apps/server/src/entities/bill.entity.ts

@@ -9,7 +9,6 @@ import {
 } from 'typeorm';
 import { Student } from './student.entity';
 import { BillItem } from './bill-item.entity';
-import { Department } from './department.entity';
 
 @Entity('bills')
 export class Bill {
@@ -47,10 +46,4 @@ export class Bill {
   @OneToMany(() => BillItem, (bi) => bi.bill)
   items: BillItem[];
 
-  @Column({ name: 'department_id', type: 'integer', nullable: true })
-  departmentId: number;
-
-  @ManyToOne(() => Department, { nullable: true })
-  @JoinColumn({ name: 'department_id' })
-  department: Department;
 }

apps/server/src/entities/class-schedule.entity.ts

@@ -8,7 +8,6 @@ import {
   JoinColumn,
   Check,
 } from 'typeorm';
-import { Department } from './department.entity';
 
 export enum ScheduleType {
   INTERNAL = 'INTERNAL',
@@ -81,10 +80,4 @@ export class ClassSchedule {
   @UpdateDateColumn({ name: 'updated_at' })
   updatedAt: Date;
 
-  @Column({ name: 'department_id', type: 'integer', nullable: true })
-  departmentId: number;
-
-  @ManyToOne(() => Department, { nullable: true })
-  @JoinColumn({ name: 'department_id' })
-  department: Department;
 }

apps/server/src/entities/classroom-rental.entity.ts

@@ -10,7 +10,6 @@ import {
 } from 'typeorm';
 import { Classroom } from './classroom.entity';
 import { Tenant } from './tenant.entity';
-import { Department } from './department.entity';
 
 @Entity('classroom_rentals')
 @Index(['classroomId', 'startDate', 'endDate'])
@@ -66,10 +65,4 @@ export class ClassroomRental {
   @UpdateDateColumn({ name: 'updated_at' })
   updatedAt: Date;
 
-  @Column({ name: 'department_id', type: 'integer', nullable: true })
-  departmentId: number;
-
-  @ManyToOne(() => Department, { nullable: true })
-  @JoinColumn({ name: 'department_id' })
-  department: Department;
 }

apps/server/src/entities/classroom.entity.ts

@@ -1,5 +1,4 @@
 import { Entity, PrimaryGeneratedColumn, Column, CreateDateColumn, ManyToOne, JoinColumn } from 'typeorm';
-import { Department } from './department.entity';
 
 @Entity('classrooms')
 export class Classroom {
@@ -36,10 +35,4 @@ export class Classroom {
   @CreateDateColumn({ name: 'created_at' })
   createdAt: Date;
 
-  @Column({ name: 'department_id', type: 'integer', nullable: true })
-  departmentId: number;
-
-  @ManyToOne(() => Department, { nullable: true })
-  @JoinColumn({ name: 'department_id' })
-  department: Department;
 }

apps/server/src/entities/department.entity.ts

@@ -1,58 +0,0 @@
-import {
-  Entity,
-  PrimaryGeneratedColumn,
-  Column,
-  CreateDateColumn,
-  UpdateDateColumn,
-  ManyToOne,
-  OneToMany,
-  JoinColumn,
-} from 'typeorm';
-
-export enum DepartmentType {
-  CAMPUS = 'campus',
-  DEPARTMENT = 'department',
-}
-
-@Entity('departments')
-export class Department {
-  @PrimaryGeneratedColumn()
-  id: number;
-
-  @Column({ length: 100 })
-  name: string;
-
-  @Column({ name: 'parent_id', type: 'integer', nullable: true })
-  parentId: number;
-
-  @ManyToOne(() => Department, { nullable: true, onDelete: 'SET NULL' })
-  @JoinColumn({ name: 'parent_id' })
-  parent: Department;
-
-  @OneToMany(() => Department, (d) => d.parent)
-  children: Department[];
-
-  @Column({ length: 20, default: DepartmentType.DEPARTMENT })
-  type: string;
-
-  @Column({ name: 'sort_order', type: 'integer', default: 0 })
-  sortOrder: number;
-
-  @Column({ length: 20, default: 'active' })
-  status: string;
-
-  @Column({ length: 20, nullable: true })
-  source: string;
-
-  @Column({ name: 'source_id', length: 50, nullable: true })
-  sourceId: string;
-
-  @Column({ name: 'parent_source_id', length: 50, nullable: true })
-  parentSourceId: string;
-
-  @CreateDateColumn({ name: 'created_at' })
-  createdAt: Date;
-
-  @UpdateDateColumn({ name: 'updated_at' })
-  updatedAt: Date;
-}

apps/server/src/entities/deposit-installment.entity.ts

@@ -7,7 +7,6 @@ import {
   JoinColumn,
 } from 'typeorm';
 import { Deposit } from './deposit.entity';
-import { Department } from './department.entity';
 
 @Entity('deposit_installments')
 export class DepositInstallment {
@@ -36,10 +35,4 @@ export class DepositInstallment {
   @JoinColumn({ name: 'deposit_id' })
   deposit: Deposit;
 
-  @Column({ name: 'department_id', type: 'integer', nullable: true })
-  departmentId: number;
-
-  @ManyToOne(() => Department, { nullable: true })
-  @JoinColumn({ name: 'department_id' })
-  department: Department;
 }

apps/server/src/entities/deposit.entity.ts

@@ -9,7 +9,6 @@ import {
 } from 'typeorm';
 import { Student } from './student.entity';
 import { DepositInstallment } from './deposit-installment.entity';
-import { Department } from './department.entity';
 
 @Entity('deposits')
 export class Deposit {
@@ -72,10 +71,4 @@ export class Deposit {
   @JoinColumn({ name: 'student_id' })
   student: Student;
 
-  @Column({ name: 'department_id', type: 'integer', nullable: true })
-  departmentId: number;
-
-  @ManyToOne(() => Department, { nullable: true })
-  @JoinColumn({ name: 'department_id' })
-  department: Department;
 }

apps/server/src/entities/exam-score.entity.ts

@@ -9,7 +9,6 @@ import {
 } from 'typeorm';
 import { Student } from './student.entity';
 import { StudentEnrollment } from './student-enrollment.entity';
-import { Department } from './department.entity';
 
 @Entity('exam_scores')
 export class ExamScore {
@@ -51,12 +50,6 @@ export class ExamScore {
   @Column({ name: 'exam_date', type: 'date', nullable: true })
   examDate: string;
 
-  @Column({ name: 'department_id', type: 'integer', nullable: true })
-  departmentId: number;
-
-  @ManyToOne(() => Department, { nullable: true })
-  @JoinColumn({ name: 'department_id' })
-  department: Department;
 
   @CreateDateColumn({ name: 'created_at' })
   createdAt: Date;

apps/server/src/entities/index.ts

@@ -26,8 +26,6 @@ export { SyncLog } from './sync-log.entity';
 export { SyncState } from './sync-state.entity';
 export { ExpenseType } from './expense-type.entity';
 export { Notification, NotificationType } from './notification.entity';
-export { Department, DepartmentType } from './department.entity';
-export { UserDepartment } from './user-department.entity';
 export { StudentProfile } from './student-profile.entity';
 export { StudentEnrollment } from './student-enrollment.entity';
 export { ExamScore } from './exam-score.entity';

apps/server/src/entities/learning-record.entity.ts

@@ -8,7 +8,6 @@ import {
   JoinColumn,
 } from 'typeorm';
 import { Student } from './student.entity';
-import { Department } from './department.entity';
 
 @Entity('learning_records')
 export class LearningRecord {
@@ -37,12 +36,6 @@ export class LearningRecord {
   @Column({ name: 'next_step', type: 'text', nullable: true })
   nextStep: string;
 
-  @Column({ name: 'department_id', type: 'integer', nullable: true })
-  departmentId: number;
-
-  @ManyToOne(() => Department, { nullable: true })
-  @JoinColumn({ name: 'department_id' })
-  department: Department;
 
   @CreateDateColumn({ name: 'created_at' })
   createdAt: Date;

apps/server/src/entities/occupancy.entity.ts

@@ -11,7 +11,6 @@ import { Room } from './room.entity';
 import { Tenant } from './tenant.entity';
 import { Bed } from './bed.entity';
 import { Locker } from './locker.entity';
-import { Department } from './department.entity';
 
 @Entity('occupancies')
 export class Occupancy {
@@ -77,10 +76,4 @@ export class Occupancy {
   @JoinColumn({ name: 'room_id' })
   room: Room;
 
-  @Column({ name: 'department_id', type: 'integer', nullable: true })
-  departmentId: number;
-
-  @ManyToOne(() => Department, { nullable: true })
-  @JoinColumn({ name: 'department_id' })
-  department: Department;
 }

apps/server/src/entities/personal-expense.entity.ts

@@ -7,7 +7,6 @@ import {
   JoinColumn,
 } from 'typeorm';
 import { Student } from './student.entity';
-import { Department } from './department.entity';
 
 @Entity('personal_expenses')
 export class PersonalExpense {
@@ -42,10 +41,4 @@ export class PersonalExpense {
   @JoinColumn({ name: 'student_id' })
   student: Student;
 
-  @Column({ name: 'department_id', type: 'integer', nullable: true })
-  departmentId: number;
-
-  @ManyToOne(() => Department, { nullable: true })
-  @JoinColumn({ name: 'department_id' })
-  department: Department;
 }

apps/server/src/entities/result-archive.entity.ts

@@ -8,7 +8,6 @@ import {
   JoinColumn,
 } from 'typeorm';
 import { Student } from './student.entity';
-import { Department } from './department.entity';
 
 @Entity('result_archives')
 export class ResultArchive {
@@ -37,12 +36,6 @@ export class ResultArchive {
   @Column({ name: 'admitted_major', length: 100, nullable: true })
   admittedMajor: string;
 
-  @Column({ name: 'department_id', type: 'integer', nullable: true })
-  departmentId: number;
-
-  @ManyToOne(() => Department, { nullable: true })
-  @JoinColumn({ name: 'department_id' })
-  department: Department;
 
   @CreateDateColumn({ name: 'created_at' })
   createdAt: Date;

apps/server/src/entities/room-expense.entity.ts

@@ -7,7 +7,6 @@ import {
   JoinColumn,
 } from 'typeorm';
 import { Room } from './room.entity';
-import { Department } from './department.entity';
 
 @Entity('room_expenses')
 export class RoomExpense {
@@ -42,10 +41,4 @@ export class RoomExpense {
   @JoinColumn({ name: 'room_id' })
   room: Room;
 
-  @Column({ name: 'department_id', type: 'integer', nullable: true })
-  departmentId: number;
-
-  @ManyToOne(() => Department, { nullable: true })
-  @JoinColumn({ name: 'department_id' })
-  department: Department;
 }

apps/server/src/entities/room.entity.ts

@@ -1,7 +1,6 @@
 import { Entity, PrimaryGeneratedColumn, Column, CreateDateColumn, OneToMany, ManyToOne, JoinColumn } from 'typeorm';
 import { Occupancy } from './occupancy.entity';
 import { RoomExpense } from './room-expense.entity';
-import { Department } from './department.entity';
 
 @Entity('rooms')
 export class Room {
@@ -44,10 +43,4 @@ export class Room {
   @OneToMany(() => RoomExpense, (e) => e.room)
   roomExpenses: RoomExpense[];
 
-  @Column({ name: 'department_id', type: 'integer', nullable: true })
-  departmentId: number;
-
-  @ManyToOne(() => Department, { nullable: true })
-  @JoinColumn({ name: 'department_id' })
-  department: Department;
 }

apps/server/src/entities/student-enrollment.entity.ts

@@ -8,7 +8,6 @@ import {
   JoinColumn,
 } from 'typeorm';
 import { Student } from './student.entity';
-import { Department } from './department.entity';
 
 @Entity('student_enrollments')
 export class StudentEnrollment {
@@ -46,12 +45,6 @@ export class StudentEnrollment {
   @Column({ length: 20, default: 'active' })
   status: string;
 
-  @Column({ name: 'department_id', type: 'integer', nullable: true })
-  departmentId: number;
-
-  @ManyToOne(() => Department, { nullable: true })
-  @JoinColumn({ name: 'department_id' })
-  department: Department;
 
   @CreateDateColumn({ name: 'created_at' })
   createdAt: Date;

apps/server/src/entities/student-profile.entity.ts

@@ -8,7 +8,6 @@ import {
   JoinColumn,
 } from 'typeorm';
 import { Student } from './student.entity';
-import { Department } from './department.entity';
 
 @Entity('student_profiles')
 export class StudentProfile {
@@ -43,12 +42,6 @@ export class StudentProfile {
   @Column({ type: 'text', nullable: true })
   notes: string;
 
-  @Column({ name: 'department_id', type: 'integer', nullable: true })
-  departmentId: number;
-
-  @ManyToOne(() => Department, { nullable: true })
-  @JoinColumn({ name: 'department_id' })
-  department: Department;
 
   @CreateDateColumn({ name: 'created_at' })
   createdAt: Date;

apps/server/src/entities/student-report.entity.ts

@@ -8,7 +8,6 @@ import {
   JoinColumn,
 } from 'typeorm';
 import { Student } from './student.entity';
-import { Department } from './department.entity';
 
 @Entity('student_reports')
 export class StudentReport {
@@ -34,12 +33,6 @@ export class StudentReport {
   @Column({ name: 'generated_at', type: 'datetime', nullable: true })
   generatedAt: Date;
 
-  @Column({ name: 'department_id', type: 'integer', nullable: true })
-  departmentId: number;
-
-  @ManyToOne(() => Department, { nullable: true })
-  @JoinColumn({ name: 'department_id' })
-  department: Department;
 
   @CreateDateColumn({ name: 'created_at' })
   createdAt: Date;

apps/server/src/entities/student.entity.ts

@@ -14,7 +14,6 @@ import { PersonalExpense } from './personal-expense.entity';
 import { Bill } from './bill.entity';
 import { Tenant } from './tenant.entity';
 import { User } from './user.entity';
-import { Department } from './department.entity';
 
 @Entity('students')
 export class Student {
@@ -82,10 +81,4 @@ export class Student {
   @OneToMany(() => Bill, (b) => b.student)
   bills: Bill[];
 
-  @Column({ name: 'department_id', type: 'integer', nullable: true })
-  departmentId: number;
-
-  @ManyToOne(() => Department, { nullable: true })
-  @JoinColumn({ name: 'department_id' })
-  department: Department;
 }

apps/server/src/entities/user-department.entity.ts

@@ -1,38 +0,0 @@
-import {
-  Entity,
-  PrimaryGeneratedColumn,
-  Column,
-  CreateDateColumn,
-  ManyToOne,
-  JoinColumn,
-  Unique,
-} from 'typeorm';
-import { User } from './user.entity';
-import { Department } from './department.entity';
-
-@Entity('user_departments')
-@Unique(['userId', 'departmentId'])
-export class UserDepartment {
-  @PrimaryGeneratedColumn()
-  id: number;
-
-  @Column({ name: 'user_id', type: 'integer' })
-  userId: number;
-
-  @ManyToOne(() => User, { onDelete: 'CASCADE' })
-  @JoinColumn({ name: 'user_id' })
-  user: User;
-
-  @Column({ name: 'department_id', type: 'integer' })
-  departmentId: number;
-
-  @ManyToOne(() => Department, { onDelete: 'CASCADE' })
-  @JoinColumn({ name: 'department_id' })
-  department: Department;
-
-  @Column({ name: 'is_default', type: 'boolean', default: false })
-  isDefault: boolean;
-
-  @CreateDateColumn({ name: 'created_at' })
-  createdAt: Date;
-}