모의투자 관리 기능 추가

backend/src/main/java/com/goldenchart/scheduler/PaperSnapshotScheduler.java

@@ -0,0 +1,22 @@
+package com.goldenchart.scheduler;
+
+import com.goldenchart.service.PaperSnapshotService;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Component;
+
+@Component
+@RequiredArgsConstructor
+@Slf4j
+public class PaperSnapshotScheduler {
+
+    private final PaperSnapshotService snapshotService;
+
+    /** KST 00:05 — 일별 자산 스냅샷 */
+    @Scheduled(cron = "0 5 0 * * *", zone = "Asia/Seoul")
+    public void captureDailySnapshots() {
+        log.info("[PaperSnapshotScheduler] EOD snapshot start");
+        snapshotService.captureEodForAllAccounts();
+    }
+}