fix(can): 특정 회원(2, 4, 44144) 접속 시 getCans 통화를 JPY로 강제

- CanService.getCans 시그니처를 isNotSelectedCurrency(Boolean) → forcedCurrency(String?)로 변경해 의도 명확화
- 통화 결정 로직을 forcedCurrency 우선 적용 후, 국가 코드(KR=KRW, 그 외=USD)로 fallback
- CanController에서 회원 ID가 2, 4, 44144인 경우 forcedCurrency="JPY"로 설정하여 서비스 호출

src/main/kotlin/kr/co/vividnext/sodalive/can/CanController.kt

@@ -17,8 +17,12 @@ class CanController(private val service: CanService) {
     fun getCans(
         @AuthenticationPrincipal(expression = "#this == 'anonymousUser' ? null : member") member: Member?
     ): ApiResponse<List<CanResponse>> {
-        val isNotSelectedCurrency = member != null && member.id == 2L
-        return ApiResponse.ok(service.getCans(isNotSelectedCurrency = isNotSelectedCurrency))
+        val forcedCurrency = if (member != null && (member.id == 2L || member.id == 4L || member.id == 44144L)) {
+            "JPY"
+        } else {
+            null
+        }
+        return ApiResponse.ok(service.getCans(forcedCurrency = forcedCurrency))
     }
 
     @GetMapping("/status")

src/main/kotlin/kr/co/vividnext/sodalive/can/CanService.kt

@@ -14,14 +14,10 @@ class CanService(
     private val repository: CanRepository,
     private val countryContext: CountryContext
 ) {
-    fun getCans(isNotSelectedCurrency: Boolean): List<CanResponse> {
-        val currency = if (isNotSelectedCurrency) {
-            null
-        } else {
-            when (countryContext.countryCode) {
-                "KR" -> "KRW"
-                else -> "USD"
-            }
+    fun getCans(forcedCurrency: String? = null): List<CanResponse> {
+        val currency = forcedCurrency ?: when (countryContext.countryCode) {
+            "KR" -> "KRW"
+            else -> "USD"
         }
         return repository.findAllByStatusAndCurrency(status = CanStatus.SALE, currency = currency)
     }