修改访问量和转发量响应参数格式

src/FlowCount/Lib/VisitorInterface.php

@@ -41,8 +41,16 @@ interface VisitorInterface
      * @return ;
      * 响应参数：
      * [
-     *  'browseNum' => 10,
-     *  'shareNum' => 10,
+     *  'browseNum' => [
+     *      'itemId' => 10,
+     *      'itemId' => 10,
+     *      ... ...
+     *   ],
+     *  'shareNum' => [
+     *      'itemId' => 10,
+     *      'itemId' => 10,
+     *      ... ...
+     *    ]
      * ]
      */
     public function browseAndShare(int $storeId, int $type, array $itemIds);