feat(express): 激活虚拟配送选项并添加兑换码验证

- 激活虚拟配送选项（值为3）并移除注释
- 为虚拟配送添加兑换码必填验证规则
- 集成Elm输入组件用于兑换码字段验证

app/common/repositories/store/shipping/ExpressRepository.php

@@ -143,7 +143,7 @@ class ExpressRepository extends BaseRepository
                 ->setOptions([
                     ['value' => 1, 'label' => '发货'],
                     // ['value' => 2, 'label' => '送货'],
-                    // ['value' => 3, 'label' => '虚拟'],
+                    ['value' => 3, 'label' => '虚拟'],
                 ])->control([
                     [
                         'value' => 1,
@@ -163,7 +163,9 @@ class ExpressRepository extends BaseRepository
                     ],
                     [
                         'value' => 3,
-                        'rule'=> []
+                        'rule'=> [
+                            Elm::input('delivery_name', '兑换码')->required(),
+                        ]
                     ],
 
                 ]),