fix: 일정 조회 쿼리에서의 오타 수정(결과는 정상이고 동일하나 인덱스 활용 불가능)

service/src/main/kotlin/com/sangdol/roomescape/schedule/infrastructure/persistence/ScheduleRepository.kt

@@ -50,7 +50,7 @@ interface ScheduleRepository : JpaRepository<ScheduleEntity, Long> {
         WHERE 
             s.storeId = :storeId
             AND s.date = :date
-            AND (:themeId IS NULL OR t._id = :themeId)
+            AND (:themeId IS NULL OR s.themeId = :themeId)
     """
     )
     fun findStoreSchedulesWithThemeByDate(