Get Account Credentials
Tool to extract OCRWebService credentials (user_name, license_code) from connection metadata. Always call this before invoking OCR_WEB_SERVICE_RECOGNIZE or OCR_WEB_SERVICE_GET_ACCOUNT_INFORMATION rather than reusing cached values, as credentials may become stale. Use OCR_WEB_SERVICE_GET_ACCOUNT_INFORMATION to verify account status and quota before submitting large jobs.