백테스팅 목록 아이템 삭제 기능추가

backend/src/main/java/com/goldenchart/service/PaperTradingService.java

@@ -173,6 +173,21 @@ public class PaperTradingService {
         return listTrades(userId, null, null, null, null, null, 0, 100).getContent();
     }
 
+    /** 체결 이력 일괄 삭제 (분석 목록에서 그룹 제거용) */
+    @Transactional
+    public int deleteTradesBatch(Long userId, List<Long> ids) {
+        if (ids == null || ids.isEmpty()) return 0;
+        long uid = TradingAccess.requireUserId(userId);
+        GcAppSettings app = appSettingsService.getEntity(uid, null);
+        GcPaperAccount account = getOrCreateAccount(uid, app);
+        List<Long> distinct = ids.stream().filter(id -> id != null && id > 0).distinct().toList();
+        if (distinct.isEmpty()) return 0;
+        List<GcPaperTrade> owned = tradeRepo.findByAccountIdAndIdIn(account.getId(), distinct);
+        if (owned.isEmpty()) return 0;
+        tradeRepo.deleteAll(owned);
+        return owned.size();
+    }
+
     @Transactional(readOnly = true)
     public PaperPageDto<PaperLedgerEntryDto> listLedger(Long userId,
                                                          LocalDateTime from, LocalDateTime to,