fix bug

py-client/strategy/trend/order.py

@@ -42,9 +42,9 @@ class OrderBook:
         self.mutex = Lock()
 
     @staticmethod
-    def new_order_id() -> str:
+    def new_order_id(side:str) -> str:
         """生成 ``trend-xxxxxxxx`` 格式的本地订单号。"""
-        return f"trend-{secrets.token_hex(12)}"
+        return f"trend-{side}-{secrets.token_hex(10)}"
 
     def busy(self, code: str, side: str) -> bool:
         """判断证券是否存在仍在处理中的同方向委托。"""