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

scratch/turn_on_ls_bulk.py

@@ -0,0 +1,17 @@
+import sys, os
+from datetime import datetime
+sys.path.append(os.path.dirname(os.path.abspath(__file__)) + '/..')
+from database import TradeDB
+
+db = TradeDB()
+try:
+    now = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
+    db.conn.execute("""
+        INSERT INTO env_config_ext (env_key, env_value, updated_at) 
+        VALUES ('LS_FEED_FALLBACK_SUBSCRIBE', 'True', %s)
+        ON DUPLICATE KEY UPDATE env_value = 'True', updated_at = %s
+    """, (now, now))
+    db.conn.commit()
+    print("✅ LS_FEED_FALLBACK_SUBSCRIBE = 'True' 적용 완료")
+finally:
+    db.close()