Uber Technologies Inc. failed to persuade a judge to approve a settlement offering 1.6 million California drivers an average of $1.08 each to dispense with alleged labor-code violations that their lawyer earlier claimed might have been worth billions of dollars. Los Angeles Superior Court Judge Maren Nelson issued a tentative ruling rejecting a deal aimed at resolving one of the dozen-plus U.S. lawsuits challenging the company’s contractor-based business model.