feat(Core/UI): 백테스트 전역 엔진 선택 버튼 추가 및 스캘핑 Rust 방어로직 포팅 1차 완료

scratch/update_ls_limit3.py

@@ -0,0 +1,21 @@
+from database import TradeDB
+db = TradeDB()
+try:
+    # row 존재하는지 확인
+    row = db.conn.execute("SELECT id, LS_WS_MAX_SUBSCRIPTIONS FROM env_config LIMIT 1").fetchone()
+    
+    if row:
+        print("기존 값:", dict(row))
+        db.conn.execute("UPDATE env_config SET LS_WS_MAX_SUBSCRIPTIONS='400' WHERE id=%s", (row['id'],))
+        print("UPDATE 완료")
+    else:
+        db.conn.execute("INSERT INTO env_config (LS_WS_MAX_SUBSCRIPTIONS) VALUES ('400')")
+        print("INSERT 완료")
+    
+    db.conn.commit()
+    
+    # 확인
+    new_row = db.conn.execute("SELECT LS_WS_MAX_SUBSCRIPTIONS FROM env_config LIMIT 1").fetchone()
+    print("변경 후 값:", dict(new_row))
+finally:
+    db.close()