By Dhara Ranasinghe and Iain Withers LONDON (Reuters) -World stock markets took a beating on Friday as a hawkish tone from Federal Reserve officials doused hopes for a December U.S. rate cut, while a still-messy data calendar and worries about an AI bubble added to the angst. Blue-chip bourses from Tokyo to Paris and London were deep in the red with fresh concern about Britain's upcoming budget adding to pain across UK markets. U.S. stock futures pointed to a bleak open for Wall Street shares after they racked up steep falls on Thursday. Citing worries about inflation and signs of relative stability in the labour market after two U.S. rate cuts this year, a growing number of Federal Reserve policymakers are signalling reticence on further easing. Markets now price a 49% chance of a quarter

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