fix: satisfy attendance workflow lint

apps/server/src/attendance/attendance-workflow.integration.spec.ts

@@ -103,11 +103,6 @@ describe('attendance workflow integration', () => {
   });
 
   it('imports students, builds a teacher class schedule, refreshes punches, and scopes reads', async () => {
-    let classId: number;
-    let scheduleId: number;
-    let studentA: Student;
-    let studentB: Student;
-
     const roleRepo = app.get<Repository<Role>>(getRepositoryToken(Role));
     const userRepo = app.get<Repository<User>>(getRepositoryToken(User));
     const studentRepo = app.get<Repository<Student>>(getRepositoryToken(Student));
@@ -168,7 +163,7 @@ describe('attendance workflow integration', () => {
       .expect(201);
     expect(importResult.body).toMatchObject({ imported: 2, skipped: 0 });
 
-    [studentA, studentB] = await Promise.all([
+    const [studentA, studentB] = await Promise.all([
       studentRepo.findOneByOrFail({ phone: '13800000001' }),
       studentRepo.findOneByOrFail({ phone: '13800000002' }),
     ]);
@@ -189,7 +184,7 @@ describe('attendance workflow integration', () => {
         endDate: LESSON_DATE,
       })
       .expect(201);
-    classId = classResult.body.id;
+    const classId = classResult.body.id;
 
     await request(app.getHttpServer())
       .post(`/api/classes/${classId}/students`)
@@ -227,7 +222,7 @@ describe('attendance workflow integration', () => {
         scheduleType: 'INTERNAL',
       })
       .expect(201);
-    scheduleId = scheduleResult.body.id;
+    const scheduleId = scheduleResult.body.id;
 
     const initialPull = await request(app.getHttpServer())
       .post(`/api/attendance-lessons/schedules/${scheduleId}/pull`)