Insider accounts detail the late-night negotiating, tech giant tug-of-war and last-minute interventions that brought the first-in-nation measure to life.The legislation was the result of months of intense discussions with the AI industry. | Justin Sullivan/Getty ImagesSAN FRANCISCO — California moved to set the national agenda on AI policy when Gov. Gavin Newsom signed a first-of-its-kind law this week aimed at making the technology safer.But the path to get there stretches back more than a year...