...

src/main/kotlin/network/KisTradeService.kt

@@ -12,6 +12,7 @@ import io.ktor.client.request.*
 import io.ktor.client.statement.bodyAsText
 import io.ktor.http.*
 import io.ktor.serialization.kotlinx.json.*
+import io.ktor.utils.io.CancellationException
 import kotlinx.serialization.json.Json
 import model.CandleData
 import model.RankingResponse
@@ -22,6 +23,7 @@ import model.StockBalanceResponse
 import kotlinx.coroutines.async
 import kotlinx.coroutines.coroutineScope
 import kotlinx.coroutines.delay
+import kotlinx.coroutines.isActive
 import kotlinx.serialization.json.JsonObject
 import kotlinx.serialization.json.jsonArray
 import kotlinx.serialization.json.jsonObject
@@ -30,6 +32,7 @@ import model.*
 import java.time.LocalDate
 import java.time.LocalTime
 import java.time.format.DateTimeFormatter
+import kotlin.coroutines.coroutineContext
 
 object KisTradeService {
     private val client = HttpClient(CIO) {
@@ -525,6 +528,7 @@ object KisTradeService {
 
         try {
             do {
+                if (!coroutineContext.isActive) throw _root_ide_package_.io.ktor.utils.io.CancellationException("UI에서 작업을 취소함") // [추가]
                 println("📡 [Step $pageCount] 요청 전송 중... (tr_cont: $trCont)")
                 val response = client.get("$baseUrl/uapi/domestic-stock/v1/trading/inquire-balance") {
                     header("authorization", "Bearer ${config.tradeToken}")
@@ -582,6 +586,10 @@ object KisTradeService {
             }
 
         } catch (e: Exception) {
+            if (e is CancellationException) {
+                println("ℹ️ [잔고조회] 사용자가 화면을 벗어나 조회를 중단합니다.")
+                throw e
+            }
             println("💥 [Fatal Error] 잔고 조회 중 예외 발생: ${e.message}")
             e.printStackTrace()
             return Result.failure(e)