While many artificial intelligence tools are aimed at software developers and office workers, venture capitalist Vinod Khosla and former Commerce Secretary Penny Pritzker’s Inspired Capital are investing in a startup deploying the technology for dirty, time-consuming infrastructure maintenance tasks like pest control and inspecting power poles and air-conditioning systems. San Francisco-based BrightAI has raised a $51 million Series A round led by Khosla Ventures and Inspired Capital, along wit...