[#198] fix(ScheduleService): IsBooking update 로직 변경 및 불필요한 주석 제거

src/main/java/com/beat/domain/schedule/application/ScheduleService.java

@@ -68,13 +68,12 @@ public boolean isBookingAvailable(Schedule schedule) {
     public void updateBookingStatus(Schedule schedule) {
         boolean isBookingAvailable = isBookingAvailable(schedule);
         if (schedule.isBooking() != isBookingAvailable) {
-            schedule.setBooking(isBookingAvailable);
+            schedule.updateIsBooking(isBookingAvailable);
             scheduleRepository.save(schedule);
         }
     }
 
     public int calculateDueDate(Schedule schedule) {
-        // LocalDate 객체를 사용하여 날짜 차이만 계산
         int dueDate = (int) ChronoUnit.DAYS.between(LocalDate.now(), schedule.getPerformanceDate().toLocalDate());
         return dueDate;
     }