xai-geoblock-env-var-override-for-xint

xint xAI-powered commands support a XAI_BASE_URL environment variable that overrides the default xAI API endpoint. This enables routing through the same geo-bypass proxy already used by X-Pulse, maintaining consistent geo-access behavior across both tools. Set this in /opt/infra/xint/.env alongside the XAI_API_KEY.