refactor(original-series-calculate): 정산 조회 파라미터를 snake_case로 통일한다

src/main/kotlin/kr/co/vividnext/sodalive/admin/calculate/originalSeries/AdminOriginalSeriesCalculateController.kt

@@ -25,15 +25,15 @@ class AdminOriginalSeriesCalculateController(
 
     @GetMapping("/original-series/settlement-details")
     fun getSettlementDetails(
-        @RequestParam("startDate") startDateStr: String,
+        @RequestParam("start_date") startDateStr: String,
-        @RequestParam("endDate") endDateStr: String,
+        @RequestParam("end_date") endDateStr: String,
-        @RequestParam memberId: Long,
+        @RequestParam("creator_id") creatorId: Long,
         pageable: Pageable
     ) = ApiResponse.ok(
         service.getSettlementDetails(
             startDateStr = startDateStr,
             endDateStr = endDateStr,
-            memberId = memberId,
+            creatorId = creatorId,
             offset = pageable.offset,
             limit = pageable.pageSize.toLong()
         )
@@ -41,8 +41,8 @@ class AdminOriginalSeriesCalculateController(
 
     @GetMapping("/original-series/settlement-details/excel")
     fun downloadSettlementDetailsExcel(
-        @RequestParam("startDate") startDateStr: String,
+        @RequestParam("start_date") startDateStr: String,
-        @RequestParam("endDate") endDateStr: String
+        @RequestParam("end_date") endDateStr: String
     ): ResponseEntity<StreamingResponseBody> = createExcelResponse(
         fileName = "original-series-settlement-details.xlsx",
         response = service.downloadSettlementDetailsExcel(startDateStr, endDateStr)

src/test/kotlin/kr/co/vividnext/sodalive/admin/calculate/originalSeries/AdminOriginalSeriesCalculateControllerTest.kt

@@ -23,13 +23,14 @@ class AdminOriginalSeriesCalculateControllerTest {
     @Test
     @DisplayName("관리자 컨트롤러는 오리지널 시리즈 소지 유저 목록을 반환한다")
     fun shouldReturnOriginalSeriesOwners() {
-        val owners = listOf(GetAdminOriginalSeriesOwnerResponse(memberId = 1L, nickname = "owner-a"))
+        val owners = listOf(GetAdminOriginalSeriesOwnerResponse(creatorId = 1L, nickname = "owner-a"))
         Mockito.`when`(service.getOriginalSeriesOwners()).thenReturn(owners)
 
         val response = controller.getOriginalSeriesOwners()
 
         assertEquals(true, response.success)
         assertEquals(1, response.data!!.size)
+        assertEquals(1L, response.data!![0].creatorId)
         assertEquals("owner-a", response.data!![0].nickname)
         Mockito.verify(service).getOriginalSeriesOwners()
     }
@@ -55,7 +56,7 @@ class AdminOriginalSeriesCalculateControllerTest {
             service.getSettlementDetails(
                 startDateStr = "2026-04-01",
                 endDateStr = "2026-04-30",
-                memberId = 5L,
+                creatorId = 5L,
                 offset = 10L,
                 limit = 10L
             )
@@ -64,7 +65,7 @@ class AdminOriginalSeriesCalculateControllerTest {
         val response = controller.getSettlementDetails(
             startDateStr = "2026-04-01",
             endDateStr = "2026-04-30",
-            memberId = 5L,
+            creatorId = 5L,
             pageable = PageRequest.of(1, 10)
         )
 
@@ -74,12 +75,47 @@ class AdminOriginalSeriesCalculateControllerTest {
         Mockito.verify(service).getSettlementDetails(
             startDateStr = "2026-04-01",
             endDateStr = "2026-04-30",
-            memberId = 5L,
+            creatorId = 5L,
             offset = 10L,
             limit = 10L
         )
     }
 
+    @Test
+    @DisplayName("정산 내역 조회 API는 snake_case 파라미터를 사용한다")
+    fun shouldUseSnakeCaseQueryParameterNames() {
+        val method = AdminOriginalSeriesCalculateController::class.java
+            .getDeclaredMethod(
+                "getSettlementDetails",
+                String::class.java,
+                String::class.java,
+                java.lang.Long.TYPE,
+                org.springframework.data.domain.Pageable::class.java
+            )
+        val parameters = method.parameters
+        val requestParamClass = org.springframework.web.bind.annotation.RequestParam::class.java
+
+        assertEquals("start_date", parameters[0].getAnnotation(requestParamClass).value)
+        assertEquals("end_date", parameters[1].getAnnotation(requestParamClass).value)
+        assertEquals("creator_id", parameters[2].getAnnotation(requestParamClass).value)
+    }
+
+    @Test
+    @DisplayName("정산 엑셀 다운로드 API는 snake_case 파라미터를 사용한다")
+    fun shouldUseSnakeCaseQueryParameterNamesForExcel() {
+        val method = AdminOriginalSeriesCalculateController::class.java
+            .getDeclaredMethod(
+                "downloadSettlementDetailsExcel",
+                String::class.java,
+                String::class.java
+            )
+        val parameters = method.parameters
+        val requestParamClass = org.springframework.web.bind.annotation.RequestParam::class.java
+
+        assertEquals("start_date", parameters[0].getAnnotation(requestParamClass).value)
+        assertEquals("end_date", parameters[1].getAnnotation(requestParamClass).value)
+    }
+
     @Test
     @DisplayName("관리자 컨트롤러는 오리지널 시리즈 정산 엑셀을 다운로드한다")
     fun shouldDownloadOriginalSeriesSettlementExcel() {