Fix: group print page crashing on enum status passed to __()

GroupStatus is a backed enum — need ->value to get the string for __().
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

resources/views/print/group-schedule.blade.php

@@ -28,7 +28,7 @@
 
     <div class="header">
         <h1>{{ $group->name_ar }}</h1>
-        <p>{{ $group->program?->name_ar ?? '' }} — {{ __('الحالة') }}: {{ __($group->status) }}</p>
+        <p>{{ $group->program?->name_ar ?? '' }} — {{ __('الحالة') }}: {{ __($group->status->value) }}</p>
     </div>
 
     <div class="info-grid">