This article is an on-site version of our FirstFT newsletter. Sign up to our Asia, Europe/Africa or Americas edition to get it sent straight to your inbox every weekday morningGood morning. US regulators will attempt to inspect the Chinese audit files of Alibaba and Yum China next month as part of a landmark deal between Beijing and Washington, according to people familiar with the matter. The deal, agreed on Friday, allows the US Public Company Accounting Oversight Board, America’s accounting watchdog, to vet the work of audit firms in mainland China and Hong Kong for the first time. The agreement…