Review optional image creator and licensing metadata

ImageObject markup was found without the creator or credit fields checked by AuditHQ. This check inspects page markup; it does not inspect embedded IPTC image bytes. Google can use structured data or embedded IPTC for creator, credit and licensing information in Google Images. Missing page fields do not prove embedded metadata is missing, and these fields are not a requirement for AI Overview attribution. For images where attribution or licensing is relevant, provide accurate creator, credit and licensing information using a documented supported method. No change is required for imagery where this metadata is not applicable.