在路由中使用中间件的舰队购物车，但是我在项目中找不到任何$ routemiddleware ...甚至在kernel.php中也找不到...在哪里可以找到它？

在路由中使用中间件的舰队购物车，但是我在项目中找不到任何$ routemiddleware ...甚至在kernel.php中也找不到...在哪里可以找到它？

Laravel版本：5.7

护照版本：7.5

CMS：FleetCart

内核.php

namespace FleetCart\Http;

use Illuminate\Foundation\Http\Kernel as HttpKernel;

class Kernel extends HttpKernel
{
    /**
     * The application's global HTTP middleware stack.
     *
     * These middleware are run during every request to your application.
     *
     * @var array
     */
    protected $middleware = [
        \FleetCart\Http\Middleware\CheckForMaintenanceMode::class,
        \Illuminate\Foundation\Http\Middleware\ValidatePostSize::class,
        \FleetCart\Http\Middleware\TrimStrings::class,
        \Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull::class,
        \FleetCart\Http\Middleware\TrustProxies::class,
        \FleetCart\Http\Middleware\RedirectToInstallerIfNotInstalled::class,
        \FleetCart\Http\Middleware\RunUpdater::class,
    ];

    /**
     * The application's route middleware groups.
     *
     * @var array
     */
    protected $middlewareGroups = [
        'web' => [
            \FleetCart\Http\Middleware\EncryptCookies::class,
            \Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
            \Illuminate\Session\Middleware\StartSession::class,
            \Illuminate\View\Middleware\ShareErrorsFromSession::class,
            \FleetCart\Http\Middleware\VerifyCsrfToken::class,
            \Illuminate\Routing\Middleware\SubstituteBindings::class,
        ],
        'api' => [
            'throttle:60,1',
            'bindings',
        ],
    ];

    /**
     * The application's route middleware.
     *
     * These middleware may be assigned to groups or used individually.
     *
     * @var array
     */
    protected $routeMiddleware = [
        'bindings' => \Illuminate\Routing\Middleware\SubstituteBindings::class,
        'throttle' => \Illuminate\Routing\Middleware\ThrottleRequests::class,
    ];
}

\ Modules \ Accounts \ Routes \ public.php

Route::middleware('auth')->group(function () {
    Route::get('account', 'AccountDashboardController@index')->name('account.dashboard.index');

    Route::get('account/profile', 'AccountProfileController@edit')->name('account.profile.edit');
    Route::put('account/profile', 'AccountProfileController@update')->name('account.profile.update');

    Route::get('account/orders', 'AccountOrderController@index')->name('account.orders.index');
    Route::get('account/orders/{id}', 'AccountOrderController@show')->name('account.orders.show');

    Route::get('account/wishlist', 'AccountWishlistController@index')->name('account.wishlist.index');
    Route::delete('account/wishlist/{productId}', 'AccountWishlistController@destroy')->name('account.wishlist.destroy');

    Route::get('account/reviews', 'AccountReviewController@index')->name('account.reviews.index');
});

中间件（“ auth”）来自哪里？没有任何其他内核文件，也没有任何其他中间件表示形式。没有.....！！

寻求帮助！