Migrate backend to Porto architecture and fix minor bugs

- Fully transitioned the backend to the Porto architectural pattern
- Improved code organization and maintainability
- Fixed minor bugs and inconsistencies

app/Observers/PostObserver.php

@@ -2,11 +2,8 @@
 
 namespace App\Observers;
 
-use App\Models\Post;
+use App\Containers\Article\Models\Post;
 use App\Services\App\Cache\PostCacheService;
-use Filament\Notifications\Notification;
-use Illuminate\Support\Facades\Cache;
-use Illuminate\Support\Facades\Redirect;
 
 class PostObserver
 {