[11.x] Add namespace for make:trait and make:interface command (#51083)

* Update InterfaceMakeCommand.php

* Update TraitMakeCommand.php

* Update TraitMakeCommand.php

---------

Co-authored-by: Taylor Otwell <taylor@laravel.com>

Author: milwad-dev

src/Illuminate/Foundation/Console/InterfaceMakeCommand.php

@@ -40,6 +40,21 @@ protected function getStub()
         return __DIR__.'/stubs/interface.stub';
     }
 
+    /**
+     * Get the default namespace for the class.
+     *
+     * @param  string  $rootNamespace
+     * @return string
+     */
+    protected function getDefaultNamespace($rootNamespace)
+    {
+        return match (true) {
+            is_dir(app_path('Contracts')) => $rootNamespace.'\\Contracts',
+            is_dir(app_path('Interfaces')) => $rootNamespace.'\\Interfaces',
+            default => $rootNamespace,
+        };
+    }
+
     /**
      * Get the console command arguments.
      *

src/Illuminate/Foundation/Console/TraitMakeCommand.php

@@ -53,6 +53,21 @@ protected function resolveStubPath($stub)
             : __DIR__.$stub;
     }
 
+    /**
+     * Get the default namespace for the class.
+     *
+     * @param  string  $rootNamespace
+     * @return string
+     */
+    protected function getDefaultNamespace($rootNamespace)
+    {
+        return match (true) {
+            is_dir(app_path('Concerns')) => $rootNamespace.'\\Concerns',
+            is_dir(app_path('Traits')) => $rootNamespace.'\\Traits',
+            default => $rootNamespace,
+        };
+    }
+
     /**
      * Get the console command arguments.
      *