Tesla (NasdaqGS:TSLA) is shifting resources away from its Model S and X lines to prepare production capacity for its humanoid robot program, Optimus. The company is increasing U.S. solar cell manufacturing as part of Elon Musk’s 100-gigawatt energy vision. Tesla is directing more investment toward AI and robotics infrastructure across its operations. Market speculation is growing around a potential merger between Tesla, SpaceX and/or xAI that could create a combined AI and robotics…