[qa] fix : fix(e2e): LessonProgressStatus 타입 오류 수정

'NOT_STARTED'는 유효하지 않은 값 — 'LOCKED'로 교체

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: HA-SEUNG-JEONG

e2e/class/lesson-review.spec.ts

@@ -76,7 +76,7 @@ function makeDrawer(): { content: CourseDrawerResponse } {
               title: '다음 레슨',
               isFree: true,
               isLocked: true,
-              status: 'NOT_STARTED',
+              status: 'LOCKED',
               isCurrentLesson: false,
             },
           ],