Upgrade: Laravel 11, consolidación modelos App\Models\

- Actualización a Laravel 11.47.0
- Migración de modelos a namespace App\Models\
- Actualización de todos los controladores
- Actualización de configuraciones
- Documentación README.md

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app/Providers/AuthServiceProvider.php

@@ -2,7 +2,6 @@
 
 namespace App\Providers;
 
-use Laravel\Passport\Passport;
 use Illuminate\Support\Facades\Gate;
 use Illuminate\Foundation\Support\Providers\AuthServiceProvider as ServiceProvider;
 
@@ -22,11 +21,8 @@ class AuthServiceProvider extends ServiceProvider
      *
      * @return void
      */
-    public function boot()
+    public function boot(): void
     {
-        $this->registerPolicies();
-
-        Passport::routes();
-        //
+        // Passport routes are now registered automatically in Laravel Passport 12
     }
 }