feat:CmBroker修改$plat和$name可见

@@ -35,13 +35,13 @@ use function jytools\timeFormat;
 
 class CmBroker
 {
-    private $plat;
+    public $plat;
     private ?OkxBroker $exBroker;
     /** @var SymbolInfo[] $symbolInfos */
     public $symbolInfos = [];
     /** @var Pos[] $positions */
     public $positions = [];
-    private $name = '';
+    public $name = '';
 
 
     public function __construct($plat, ApiInfo $apiInfo)