update schema validator

.hta_config/conf.php

@@ -1,2 +1,22 @@
 <?php
-define('SITE_NAME', 'Tools');
+/**
+ * Global API Headers Configuration
+ */
+
+$API_HEADERS = [
+    'Content-Type: application/json; charset=utf-8',
+    'Access-Control-Allow-Origin: *',
+    'Access-Control-Allow-Methods: GET, POST, OPTIONS',
+    'Access-Control-Allow-Headers: Content-Type, Authorization',
+    'X-Powered-By: SiliconPin Tools'
+];
+
+/**
+ * Apply headers helper
+ */
+function applyApiHeaders(array $headers)
+{
+    foreach ($headers as $header) {
+        header($header);
+    }
+}