fix: index and customid example in spec

src/Appwrite/Specification/Format/OpenAPI3.php

@@ -275,6 +275,7 @@ class OpenAPI3 extends Format
                         $node['schema']['x-example'] = false;
                         break;
                     case 'Utopia\Database\Validator\UID':
+                    case 'Appwrite\Database\Validator\CustomId':
                         $node['schema']['type'] = $validator->getType();
                         $node['schema']['x-example'] = '['.\strtoupper(Template::fromCamelCaseToSnake($node['name'])).']';
                         break;

src/Appwrite/Specification/Format/Swagger2.php

@@ -263,6 +263,7 @@ class Swagger2 extends Format
                         $node['x-example'] = false;
                         break;
                     case 'Utopia\Database\Validator\UID':
+                    case 'Appwrite\Database\Validator\CustomId':
                         $node['type'] = $validator->getType();
                         $node['x-example'] = '['.\strtoupper(Template::fromCamelCaseToSnake($node['name'])).']';
                         break;

src/Appwrite/Utopia/Response/Model/Index.php

@@ -20,7 +20,7 @@ class Index extends Model
                 'type' => self::TYPE_STRING,
                 'description' => 'Index type.',
                 'default' => '',
-                'example' => '',
+                'example' => 'primary',
             ])
             ->addRule('status', [
                 'type' => self::TYPE_STRING,