refactor(admin-charge): GetChargeStatusDetailResponse의 amount 타입을 Int에서 BigDecimal로 변경

- 충전 금액 계산을 좀 더 명확하게 하기 위해서 변경

src/main/kotlin/kr/co/vividnext/sodalive/admin/charge/AdminChargeStatusService.kt

@@ -80,7 +80,7 @@ class AdminChargeStatusService(val repository: AdminChargeStatusQueryRepository)
                     memberId = it.memberId,
                     nickname = it.nickname,
                     method = it.method,
-                    amount = it.amount.toInt(),
+                    amount = it.amount,
                     locale = it.locale,
                     datetime = it.datetime
                 )

src/main/kotlin/kr/co/vividnext/sodalive/admin/charge/GetChargeStatusDetailResponse.kt

@@ -1,10 +1,12 @@
 package kr.co.vividnext.sodalive.admin.charge
 
+import java.math.BigDecimal
+
 data class GetChargeStatusDetailResponse(
     val memberId: Long,
     val nickname: String,
     val method: String,
-    val amount: Int,
+    val amount: BigDecimal,
     val locale: String,
     val datetime: String
 )