Cloud computing startup CoreWeave, one of the biggest beneficiaries of the artificial intelligence boom, has been on a fundraising spree over the past year from some of the deepest pockets on Wall Street. Now it’s planning an initial public offering.The startup has started early preparations to go public by the first half of next year, said a person with direct knowledge of the company’s plans. The plans set up what would be the largest AI-focused initial public offering after the recent wave of...