refactor: renamed namespace from Da\User to pcrt\User

All PHP namespaces and related references have been updated from Da\User to pcrt\User throughout the codebase, including composer.json autoload settings and all source files. This change standardizes the project under the new pcrt\User namespace for improved clarity and maintainability.

tests/_fixtures/ProfileFixture.php

@@ -6,7 +6,7 @@ use yii\test\ActiveFixture;
 
 class ProfileFixture extends ActiveFixture
 {
-    public $modelClass = 'Da\User\Model\Profile';
+    public $modelClass = 'pcrt\User\Model\Profile';
 
     public $depends = [
         'tests\_fixtures\UserFixture',