백테스팅 목록 아이템 삭제 기능추가

backend/src/main/java/com/goldenchart/controller/PaperTradingController.java

@@ -75,6 +75,15 @@ public class PaperTradingController {
                 uid, symbol, side, source, from, to, page, pageSize));
     }
 
+    @DeleteMapping("/trades/batch")
+    public ResponseEntity<Map<String, Integer>> deleteTradesBatch(
+            @RequestHeader Map<String, String> h,
+            @RequestBody PaperTradeDeleteRequest body) {
+        long uid = TradingControllerSupport.requireRegisteredUser(h);
+        int deleted = paperTradingService.deleteTradesBatch(uid, body != null ? body.getIds() : null);
+        return ResponseEntity.ok(Map.of("deleted", deleted));
+    }
+
     @GetMapping("/ledger")
     public ResponseEntity<PaperPageDto<PaperLedgerEntryDto>> ledger(
             @RequestHeader Map<String, String> h,

backend/src/main/java/com/goldenchart/dto/PaperTradeDeleteRequest.java

@@ -0,0 +1,10 @@
+package com.goldenchart.dto;
+
+import lombok.Data;
+
+import java.util.List;
+
+@Data
+public class PaperTradeDeleteRequest {
+    private List<Long> ids;
+}

backend/src/main/java/com/goldenchart/repository/GcPaperTradeRepository.java

@@ -8,6 +8,7 @@ import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.query.Param;
 
 import java.time.LocalDateTime;
+import java.util.Collection;
 import java.util.List;
 
 public interface GcPaperTradeRepository extends JpaRepository<GcPaperTrade, Long> {
@@ -30,4 +31,6 @@ public interface GcPaperTradeRepository extends JpaRepository<GcPaperTrade, Long
             @Param("from") LocalDateTime from,
             @Param("to") LocalDateTime to,
             Pageable pageable);
+
+    List<GcPaperTrade> findByAccountIdAndIdIn(Long accountId, Collection<Long> ids);
 }

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,