....

src/main/kotlin/ui/DashboardScreen.kt

@@ -40,7 +40,7 @@ import kotlin.collections.mutableListOf
 @Composable
 fun DashboardScreen() {
     val tradeService = remember { KisTradeService }
-    val wsManager = remember { KisWebSocketManager() }
+    val wsManager = remember { KisWebSocketManager }
     val scope = rememberCoroutineScope()
     var selectedStockCode by remember { mutableStateOf("") }
     var selectedStockName by remember { mutableStateOf("") }

src/main/kotlin/ui/SettingsScreen.kt

@@ -122,7 +122,7 @@ fun SettingsScreen(onAuthSuccess: () -> Unit) {
                         // 1. KisSession.config 업데이트 및 DB 저장
                         KisSession.config = config
                         DatabaseFactory.saveConfig(config)
-                        val authService = KisAuthService()
+                        val authService = KisAuthService
                         val tradeService = KisTradeService
                         val authSuccess = authService.refreshAllTokens()
                         val wsKeySuccess = tradeService.refreshWebsocketKey()