feat: add PermissionsMiddleware as permission alias (#77)

Introduce `PermissionsMiddleware` using the `permission` alias from the
[`spatie/laravel-permission`](https://github.com/spatie/laravel-permission)
package. Set middleware priorities for improved execution order.

Signed-off-by: Valentin Sickert <[email protected]>

app/Http/Kernel.php

@@ -65,5 +65,27 @@ class Kernel extends HttpKernel
         'signed' => \App\Http\Middleware\ValidateSignature::class,
         'throttle' => \Illuminate\Routing\Middleware\ThrottleRequests::class,
         'verified' => \Illuminate\Auth\Middleware\EnsureEmailIsVerified::class,
+        'permission' => \Spatie\Permission\Middleware\PermissionMiddleware::class,
+    ];
+
+    /**
+     * The priority-sorted list of middleware.
+     *
+     * This forces non-global middleware to always be in the given order.
+     *
+     * @var string[]
+     */
+    protected $middlewarePriority = [
+        \Illuminate\Foundation\Http\Middleware\HandlePrecognitiveRequests::class,
+        \Illuminate\Cookie\Middleware\EncryptCookies::class,
+        \Illuminate\Session\Middleware\StartSession::class,
+        \Illuminate\View\Middleware\ShareErrorsFromSession::class,
+        \Illuminate\Contracts\Auth\Middleware\AuthenticatesRequests::class,
+        \Illuminate\Routing\Middleware\ThrottleRequests::class,
+        \Illuminate\Routing\Middleware\ThrottleRequestsWithRedis::class,
+        \Illuminate\Contracts\Session\Middleware\AuthenticatesSessions::class,
+        \Spatie\Permission\Middleware\PermissionMiddleware::class,
+        \Illuminate\Routing\Middleware\SubstituteBindings::class,
+        \Illuminate\Auth\Middleware\Authorize::class,
     ];
 }