defer tenant route registration in TSP stub

Author: stancl

assets/TenancyServiceProvider.stub.php

@@ -120,10 +120,12 @@ protected function bootEvents()
 
     protected function mapRoutes()
     {
-        if (file_exists(base_path('routes/tenant.php'))) {
-            Route::namespace(static::$controllerNamespace)
-                ->group(base_path('routes/tenant.php'));
-        }
+        $this->app->booted(function () {
+            if (file_exists(base_path('routes/tenant.php'))) {
+                Route::namespace(static::$controllerNamespace)
+                    ->group(base_path('routes/tenant.php'));
+            }
+        });
     }
 
     protected function makeTenancyMiddlewareHighestPriority()