refactor(admin-dashboard): move data-page marker to wrapper for scoped css

resources/views/admin/dashboard.blade.php

@@ -26,7 +26,8 @@
     ];
 @endphp
 
-<div class="page-header mb-20" data-page="admin.dashboard">
+<div data-page="admin.dashboard">
+<div class="page-header mb-20">
     <div class="page-header-main">
         <div>
             <div class="page-header-title">总台仪表盘</div>
@@ -490,4 +491,5 @@
         <div class="muted muted-xs mt-10">说明：当前口径为“平台订单按 plan_id 的数量占比（Top5）”；后续扩展到金额占比、渠道占比与时间范围切换。</div>
     </div>
 </div>
+</div>
 @endsection