update AppServiceProvider to add Observer

app/Providers/AppServiceProvider.php

@@ -2,6 +2,10 @@
 
 namespace App\Providers;
 
+use App\Models\Events;
+use App\Models\User;
+use App\Observers\EventObserver;
+use App\Observers\UserObserver;
 use Illuminate\Support\ServiceProvider;
 use Illuminate\Support\Facades\Route;
 
@@ -25,5 +29,7 @@ class AppServiceProvider extends ServiceProvider
         Route::middleware('web')->prefix('api')->group(base_path('routes/events.php'));
         Route::middleware('web')->prefix('api')->group(base_path('routes/notifications.php'));
         Route::middleware('web')->prefix('api')->group(base_path('routes/channels.php'));
+        User::observe(UserObserver::class);
+        Events::observe(EventObserver::class);
     }
 }