remove copy

src/position_manager.py

@@ -146,7 +146,7 @@ class PositionManager:
         with self._lock:
             order = self.pending_orders.get(order_id)
             # 如果找到订单，返回它的副本而不是直接引用
-            return order.copy() if order else None
+            return order
 
     def get_pending_orders(self):
         """获取所有未完成委托
@@ -164,7 +164,7 @@ class PositionManager:
         # 锁外创建副本，避免外部修改影响内部数据
         result = {}
         for order_id, order in orders_copy.items():
-            result[order_id] = order.copy() if hasattr(order, 'copy') else order
+            result[order_id] = order
         
         return result
 
@@ -375,15 +375,4 @@ class PositionManager:
         Returns:
             list: 所有订单列表的副本
         """
-        # 创建临时变量存储锁内读取的数据
-        orders_copy = []
-        with self._lock:
-            # 快速获取数据并立即释放锁
-            orders_copy = self.all_orders.copy()
-        
-        # 锁外创建深拷贝，避免外部修改影响内部数据
-        result = []
-        for order in orders_copy:
-            result.append(order.copy() if hasattr(order, 'copy') else order)
-        
-        return result
+        return self.all_orders