feat: 路子珠显示幸运6/龙7/熊8特殊图标

- DB: cg_number_tab 加 dragon_seven, panda_eight 列
- 后端: OpeningBaccaratService 接收并存储 dragon_seven/panda_eight
- Waybill: showRoad 数据含 luck_six/dragon_seven/panda_eight
- 前端 SoloPath: 绿色圆「6」=幸运6, 金色圆「7」=龙7, 蓝色圆「8」=熊8
- handle_b.js: 键盘7/8设置对应隐藏字段，opening()传参

freedom/utils/Waybill.php

@@ -121,7 +121,7 @@ class Waybill
         $showRoadLocation = array();
         foreach($showRoad as $k => $v){
             foreach($v as $key => $val){
-                $pushData = array('show_x' => $k + 1, 'show_y' =>$key + 1, 'result' => $val['result'], 'pair' => $val['pair']);
+                $pushData = array('show_x' => $k + 1, 'show_y' =>$key + 1, 'result' => $val['result'], 'pair' => $val['pair'], 'luck_six' => $val['luck_six'] ?? 0, 'dragon_seven' => $val['dragon_seven'] ?? 0, 'panda_eight' => $val['panda_eight'] ?? 0);
                 array_push($showRoadLocation,$pushData);
             }
         }