feat(admin-chat-calculate): 캐릭터 정산 API에 totalCount 추가

src/main/kotlin/kr/co/vividnext/sodalive/admin/chat/calculate/AdminChatCalculateQueryRepository.kt

@@ -68,4 +68,24 @@ class AdminChatCalculateQueryRepository(
             .limit(limit)
             .fetch()
     }
+
+    fun getCharacterCalculateTotalCount(
+        startUtc: LocalDateTime,
+        endInclusiveUtc: LocalDateTime
+    ): Int {
+        return queryFactory
+            .select(chatCharacter.id)
+            .from(useCan)
+            .innerJoin(useCan.characterImage, characterImage)
+            .innerJoin(characterImage.chatCharacter, chatCharacter)
+            .where(
+                useCan.isRefund.isFalse
+                    .and(useCan.canUsage.`in`(CanUsage.CHARACTER_IMAGE_PURCHASE, CanUsage.CHAT_MESSAGE_PURCHASE))
+                    .and(useCan.createdAt.goe(startUtc))
+                    .and(useCan.createdAt.loe(endInclusiveUtc))
+            )
+            .groupBy(chatCharacter.id)
+            .fetch()
+            .size
+    }
 }

src/main/kotlin/kr/co/vividnext/sodalive/admin/chat/calculate/AdminChatCalculateService.kt

@@ -21,7 +21,7 @@ class AdminChatCalculateService(
         sort: ChatCharacterCalculateSort,
         offset: Long,
         pageSize: Int
-    ): List<ChatCharacterCalculateItem> {
+    ): ChatCharacterCalculateResponse {
         // 날짜 유효성 검증 (KST 기준)
         val startDate = LocalDate.parse(startDateStr, dateFormatter)
         val endDate = LocalDate.parse(endDateStr, dateFormatter)
@@ -35,7 +35,9 @@ class AdminChatCalculateService(
         val startUtc = startDateStr.convertLocalDateTime()
         val endInclusiveUtc = endDateStr.convertLocalDateTime(hour = 23, minute = 59, second = 59)
 
+        val totalCount = repository.getCharacterCalculateTotalCount(startUtc, endInclusiveUtc)
         val rows = repository.getCharacterCalculate(startUtc, endInclusiveUtc, sort, offset, pageSize.toLong())
-        return rows.map { it.toItem() }
+        val items = rows.map { it.toItem() }
+        return ChatCharacterCalculateResponse(totalCount, items)
     }
 }

src/main/kotlin/kr/co/vividnext/sodalive/admin/chat/calculate/ChatCharacterCalculateDtos.kt

@@ -20,7 +20,7 @@ data class ChatCharacterCalculateQueryData @QueryProjection constructor(
     val messagePurchaseCan: Int?
 )
 
-// 응답 DTO
+// 응답 DTO (아이템)
 data class ChatCharacterCalculateItem(
     @JsonProperty("characterId") val characterId: Long,
     @JsonProperty("characterImage") val characterImage: String?,
@@ -32,6 +32,12 @@ data class ChatCharacterCalculateItem(
     @JsonProperty("settlementKrw") val settlementKrw: Int
 )
 
+// 응답 DTO (전체)
+data class ChatCharacterCalculateResponse(
+    @JsonProperty("totalCount") val totalCount: Int,
+    @JsonProperty("items") val items: List<ChatCharacterCalculateItem>
+)
+
 fun ChatCharacterCalculateQueryData.toItem(): ChatCharacterCalculateItem {
     val image = imagePurchaseCan ?: 0
     val message = messagePurchaseCan ?: 0