Fix búsqueda en tiempo real, paginación, OneSignal, bancos/categorías y vistas auth

- ajaxcrud.js: fix race condition en búsqueda, abort de requests en vuelo
- Layout: mover @yield('js') después de app.js para corregir orden de carga
- Paginación: useBootstrapFour() + eliminar wrappers <ul> duplicados en 17 vistas
- OneSignal: migrar de UserTag iChamba_ID a ExternalId en controladores
- API: agregar endpoint GET /api/banks y campos rfc/bank/bank_account/fee en hero()
- Seeders: BanksSeeder (239 bancos) y CategoriesSeeder (100 categorías)
- Auth views: corregir padding/scroll en register, login, password reset

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/Providers/AppServiceProvider.php

@@ -2,28 +2,13 @@
 
 namespace App\Providers;
 
-use App\Services\SocialUserResolver;
 use App\Support\FormBuilder;
-use Coderello\SocialGrant\Resolvers\SocialUserResolverInterface;
 use Illuminate\Support\ServiceProvider;
 use Illuminate\Support\Facades\Schema;
+use Illuminate\Pagination\Paginator;
 
 class AppServiceProvider extends ServiceProvider
 {
-    /**
-     * All of the container bindings that should be registered.
-     *
-     * @var array
-     */
-    public $bindings = [
-        SocialUserResolverInterface::class => SocialUserResolver::class,
-    ];
-
-    /**
-     * Register any application services.
-     *
-     * @return void
-     */
     public function register()
     {
         $this->app->singleton('form', function ($app) {
@@ -31,14 +16,9 @@ class AppServiceProvider extends ServiceProvider
         });
     }
 
-    /**
-     * Bootstrap any application services.
-     *
-     * @return void
-     */
     public function boot()
     {
         Schema::defaultStringLength(191);
-        //
+        Paginator::useBootstrapFour();
     }
 }