❌ No access token provided.
Usage: php test_zerodha_connection.php [ACCESS_TOKEN]

To get access token:
1. Go to: https://kite.zerodha.com/connect/login?v=3&api_key=YOUR_ZERODHA_API_KEY
2. Login and get the request_token from redirect URL
3. Exchange it for access_token via /session/token API