Fix: Initialize TelegramHelper before use

src/Controllers/TelegramBotController.php

@@ -30,6 +30,9 @@ class TelegramBotController
     public function webhook(Request $request, Response $response): Response
     {
         try {
+            // Initialize TelegramHelper
+            TelegramHelper::init();
+            
             // Get raw input
             $raw = $request->getBody()->getContents();
             TelegramHelper::log("RAW UPDATE: $raw");