fix: okx convert return format

main.py

@@ -314,15 +314,23 @@ class BotSpotTrade:
         except Exception as e:
             self.logger.warning("查询闪兑结果失败: %s（使用创建返回的数据）", str(e))
 
+        # 查询接口查不到时（如 OKX 按 clTReqId 查历史查不到）ccxt 返回字段全为
+        # None 的空壳结构而不抛错，此时必须回退用创建时返回的数据
+        if trade_detail is not None and (
+            trade_detail.get("toAmount") is None or trade_detail.get("fromAmount") is None
+        ):
+            self.logger.warning("查询闪兑结果无有效成交数据: %s（使用创建返回的数据）", trade_detail)
+            trade_detail = None
+
         final_data = trade_detail or convert_trade
 
         record_data = {
             "symbol": symbol,
             "id": trade_id,
-            "filled": final_data.get("toAmount", 0.0),
-            "cost": final_data.get("fromAmount", 0.0),
+            "filled": final_data.get("toAmount") or 0.0,
+            "cost": final_data.get("fromAmount") or 0.0,
             "side": side,
-            "timestamp": final_data.get("timestamp", int(time.time() * 1000)),
+            "timestamp": final_data.get("timestamp") or int(time.time() * 1000),
         }
 
         if not self._tool_record_transaction(record_data, is_convert=True):