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

scratch/check_ls_ob_stats.py

@@ -0,0 +1,18 @@
+import sys
+import os
+sys.path.append(os.path.dirname(os.path.abspath(__file__)) + '/..')
+from database import TradeDB
+
+db = TradeDB()
+try:
+    print("\n[LS Orderbooks]")
+    ls_obs = db.conn.execute("""
+        SELECT HOUR(snap_time) as hr, count(*) 
+        FROM ls_ws_orderbook 
+        WHERE date(snap_time) = '2026-08-31' 
+        GROUP BY HOUR(snap_time)
+    """).fetchall()
+    for row in ls_obs: print(dict(row))
+
+finally:
+    db.close()