Photo illustration: Sarah Grillo/Axios. Photo: Britta Pedersen-Pool/Getty ImagesElon Musk has sued OpenAI over its planned for-profit restructuring, but Musk's own emails show he wanted OpenAI to have a for-profit component and wanted to own and run it himself, OpenAI argues in a new court filing Friday.Why it matters: Musk helped found OpenAI in 2015 but has since become a bitter opponent and critic of the ChatGPT maker. The big picture: Friday's filing is the latest salvo in a high profile le...