refactor: Improve ModuleUsersUI code structure and add validation

- Replace ModuleBaseForm with specific LdapConfigForm for better type safety
- Add validation for user UI related POST data in UsersUIConf
- Improve code readability with descriptive comments
- Update code style according to PSR-12 standards

App/Controllers/ModuleUsersUIController.php

@@ -21,7 +21,7 @@
 namespace Modules\ModuleUsersUI\App\Controllers;
 
 use MikoPBX\AdminCabinet\Providers\AssetProvider;
-use Modules\ModuleUsersUI\App\Forms\ModuleBaseForm;
+use Modules\ModuleUsersUI\App\Forms\LdapConfigForm;
 use Modules\ModuleUsersUI\Models\AccessGroups;
 use Modules\ModuleUsersUI\Models\LdapConfig;
 use Modules\ModuleUsersUI\Models\UsersCredentials;
@@ -82,7 +82,7 @@ public function indexAction(): void
         $this->view->members = $this->getTheListOfUsersForDisplayInTheFilter();
 
         $ldapConfig = LdapConfig::findFirst();
-        $this->view->ldapForm = new ModuleBaseForm($ldapConfig);
+        $this->view->ldapForm = new LdapConfigForm($ldapConfig);
         $this->view->submitMode    = null;
     }
 }

Lib/UsersUIConf.php

@@ -191,7 +191,21 @@ public function onAfterExecuteRestAPIRoute(Micro $app): void
         if (!empty($response->result) and $response->result === true) {
             $userController = new UsersCredentialsController();
             $postData = $app->request->getPost();
-            $userController->saveUserCredential($postData, $response);
+
+            // Check if any key in postData contains "module_users_ui_"
+            $hasUserUIKeys = false;
+            foreach ($postData as $key => $value) {
+                if (strpos($key, 'module_users_ui_') !== false) {
+                    $hasUserUIKeys = true;
+                    break;
+                }
+            }
+
+            // Only save credentials if relevant keys are present
+            if ($hasUserUIKeys) {
+                $userController->saveUserCredential($postData, $response);
+            }
+
             $app->response->setContent(json_encode($response));
         }
     }