设备数量结果判断修正

src/agent/tool_monitor.py

@@ -105,7 +105,7 @@ class MonitorPointTool(BaseTool):
         try:
             response = self.client.query_device_and_sensor(code, start_time, end_time, device_type)
             self.logger.debug(f"API响应: {response}")
-            if response.type != 1 or len(response.resultdata) == 0:
+            if response.type != 1 or len(response.resultdata) == 0 or len(response.resultdata.get("DeviceList")) == 0:
                 error_msg = f"查询失败: {response.message}，请检查是否有相关数据权限"
                 self.logger.warning(error_msg)
                 return {