feat: add ClassSchedule entity

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

@@ -0,0 +1,82 @@
+import {
+  Entity,
+  PrimaryGeneratedColumn,
+  Column,
+  CreateDateColumn,
+  UpdateDateColumn,
+  ManyToOne,
+  JoinColumn,
+  Check,
+} from 'typeorm';
+
+export enum ScheduleType {
+  INTERNAL = 'INTERNAL',
+  RENTAL = 'RENTAL',
+}
+
+@Entity('class_schedule')
+@Check('week_day BETWEEN 1 AND 7')
+export class ClassSchedule {
+  @PrimaryGeneratedColumn()
+  id: number;
+
+  @Column({ name: 'class_id', type: 'integer' })
+  classId: number;
+
+  // Forward reference — Class entity
+  @ManyToOne('Class')
+  @JoinColumn({ name: 'class_id' })
+  class: unknown;
+
+  @Column({ name: 'classroom_id', type: 'integer' })
+  classroomId: number;
+
+  // Forward reference — Classroom entity
+  @ManyToOne('Classroom')
+  @JoinColumn({ name: 'classroom_id' })
+  classroom: unknown;
+
+  @Column({ name: 'week_day', type: 'integer' })
+  weekDay: number;
+
+  @Column({ name: 'start_time', length: 5 })
+  startTime: string;
+
+  @Column({ name: 'end_time', length: 5 })
+  endTime: string;
+
+  @Column({ name: 'start_date', type: 'date' })
+  startDate: string;
+
+  @Column({ name: 'end_date', type: 'date' })
+  endDate: string;
+
+  @Column({ name: 'subject', length: 50 })
+  subject: string;
+
+  @Column({ name: 'teacher_id', type: 'integer', nullable: true })
+  teacherId: number;
+
+  // Forward reference — User entity
+  @ManyToOne('User', { nullable: true })
+  @JoinColumn({ name: 'teacher_id' })
+  teacher: unknown;
+
+  @Column({ name: 'schedule_type', length: 20, default: 'INTERNAL' })
+  scheduleType: string;
+
+  @Column({ name: 'rental_id', type: 'integer', nullable: true })
+  rentalId: number;
+
+  @Column({ name: 'status', length: 20, default: 'active' })
+  status: string;
+
+  @Column({ name: 'notes', type: 'text', nullable: true })
+  notes: string;
+
+  @CreateDateColumn({ name: 'created_at' })
+  createdAt: Date;
+
+  @UpdateDateColumn({ name: 'updated_at' })
+  updatedAt: Date;
+}

apps/server/src/entities/index.ts

@@ -16,3 +16,4 @@ export { Role } from './role.entity';
 export { Class, ClassType, ClassStatus } from './class.entity';
 export { ClassStudent } from './class-student.entity';
 export { ClassTeacher, TeacherRoleType } from './class-teacher.entity';
+export { ClassSchedule, ScheduleType } from './class-schedule.entity';