A Saleforce office building in San Francisco.Photographer: David Paul Morris/BloombergSalesforce Inc. said it’s saving about $100 million a year by using artificial intelligence tools in the software company’s customer service operations.The company is working to sell AI features that can handle work such as customer service or early-stage sales. To illustrate the value of the Agentforce product to business clients, Salesforce has been vocal about its own use of the technology....