Configuración de notificaciones actualizada. Claves: notify_email_from_name, notify_email_from_address, notify_email_reply_to, notify_whatsapp_provider, notify_whatsapp_api_url, notify_whatsapp_phone_number_id, notify_whatsapp_access_token, notify_whatsapp_default_country_code, notify_manychat_api_url, notify_manychat_access_token, notify_manychat_message_tag, notify_retry_max_attempts, notify_retry_backoff_minutes, notify_channel_email, notify_channel_whatsapp