fix: PostgreSQL compatibility and Telegram bot token validation

- Fixed PostgreSQL 18+ compatibility by using postgres:17 image
- Added token validation for Telegram bot
- Improved error handling in telegram_bot.py
- Added scripts for bot token management
- Cleaned up old QR codes and added new utility files

response_user.json

@@ -0,0 +1 @@
+{"id":4,"email":"testuser@example.com","role":"user"}