fix(admin/charge): 통화별 리스트와 합계 행 추가 및 전체 합계 로직 수정

- 기존 로직은 통화 구분 없이 전체 합계를 계산·표시하여 통화가 혼재된 데이터에서 오해의 소지가 있었음.
- 관리 화면 요구사항: 통화(currency)별 합계를 명확히 제공.

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

@@ -26,6 +26,7 @@ class AdminChargeStatusQueryRepository(private val queryFactory: JPAQueryFactory
             ),
             "%Y-%m-%d"
         )
+        val currency = Expressions.stringTemplate("RIGHT({0}, 3)", payment.locale)
 
         return queryFactory
             .select(
@@ -33,7 +34,8 @@ class AdminChargeStatusQueryRepository(private val queryFactory: JPAQueryFactory
                     formattedDate,
                     payment.price.sum(),
                     payment.id.count(),
-                    payment.paymentGateway
+                    payment.paymentGateway,
+                    currency
                 )
             )
             .from(payment)
@@ -45,7 +47,7 @@ class AdminChargeStatusQueryRepository(private val queryFactory: JPAQueryFactory
                     .and(charge.status.eq(ChargeStatus.CHARGE))
                     .and(payment.status.eq(PaymentStatus.COMPLETE))
             )
-            .groupBy(formattedDate, payment.paymentGateway)
+            .groupBy(formattedDate, payment.paymentGateway, currency)
             .orderBy(formattedDate.desc())
             .fetch()
     }

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

@@ -20,35 +20,40 @@ class AdminChargeStatusService(val repository: AdminChargeStatusQueryRepository)
             .withZoneSameInstant(ZoneId.of("UTC"))
             .toLocalDateTime()
 
-        var totalChargeAmount = 0.toBigDecimal()
-        var totalChargeCount = 0L
+        val totalsByCurrency = mutableMapOf<String, Pair<java.math.BigDecimal, Long>>()
 
         val chargeStatusList = repository.getChargeStatus(startDate, endDate)
             .map {
                 val chargeAmount = it.amount
                 val chargeCount = it.chargeCount
+                val currency = it.currency
 
-                totalChargeAmount += chargeAmount
-                totalChargeCount += chargeCount
+                val prev = totalsByCurrency[currency] ?: (0.toBigDecimal() to 0L)
+                totalsByCurrency[currency] = (prev.first + chargeAmount) to (prev.second + chargeCount)
 
                 GetChargeStatusResponse(
                     date = it.date,
                     chargeAmount = chargeAmount,
                     chargeCount = chargeCount,
-                    pg = it.paymentGateWay.name
+                    pg = it.paymentGateWay.name,
+                    currency = currency
                 )
             }
             .toMutableList()
 
-        chargeStatusList.add(
-            0,
-            GetChargeStatusResponse(
-                date = "합계",
-                chargeAmount = totalChargeAmount,
-                chargeCount = totalChargeCount,
-                pg = ""
-            )
-        )
+        val summaryRows = totalsByCurrency.entries
+            .sortedBy { it.key }
+            .map { (currency, total) ->
+                GetChargeStatusResponse(
+                    date = "합계",
+                    chargeAmount = total.first,
+                    chargeCount = total.second,
+                    pg = "",
+                    currency = currency
+                )
+            }
+
+        chargeStatusList.addAll(0, summaryRows)
 
         return chargeStatusList.toList()
     }

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

@@ -8,5 +8,6 @@ data class GetChargeStatusQueryDto @QueryProjection constructor(
     val date: String,
     val amount: BigDecimal,
     val chargeCount: Long,
-    val paymentGateWay: PaymentGateway
+    val paymentGateWay: PaymentGateway,
+    val currency: String
 )

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

@@ -6,5 +6,6 @@ data class GetChargeStatusResponse(
     val date: String,
     val chargeAmount: BigDecimal,
     val chargeCount: Long,
-    val pg: String
+    val pg: String,
+    val currency: String
 )