fix NPE

src/real/real_trader_manager.py

@@ -197,13 +197,13 @@ class RealTraderManager:
     def check_and_retry(self, order_id, strategy_name, code, direction, amount, available_retry_count=1):
         position_manager = self.trader.get_position_manager(strategy_name)
         order_info = position_manager.get_pending_order(order_id)
-        filled = order_info.filled
-        target_amount = order_info.amount
-        
         if not order_info:
             logger.warning(f"订单信息不存在: ID={order_id}")
             return
         
+        filled = order_info.filled
+        target_amount = order_info.amount
+        
         order_type = order_info.order_type
         status = self._update_order_status(order_id, strategy_name)