Implement admin and user management foundation

app/Providers/AppServiceProvider.php

@@ -2,9 +2,11 @@
 
 namespace App\Providers;
 
+use App\Models\User;
 use Carbon\CarbonImmutable;
 use Illuminate\Support\Facades\Date;
 use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Gate;
 use Illuminate\Support\ServiceProvider;
 use Illuminate\Validation\Rules\Password;
 
@@ -23,9 +25,18 @@ class AppServiceProvider extends ServiceProvider
      */
     public function boot(): void
     {
+        $this->configureAuthorization();
         $this->configureDefaults();
     }
 
+    /**
+     * Configure authorization behaviors.
+     */
+    protected function configureAuthorization(): void
+    {
+        Gate::define('access-admin', fn (User $user): bool => $user->is_admin);
+    }
+
     /**
      * Configure default behaviors for production-ready applications.
      */