phone posts tabs and project rows fit better, and post limits are tighter

on phones, commiToday now switches between X, LinkedIn, and Reddit with tabs on the posts page, project rows wrap instead of overlapping, and the collapse button sits at the bottom of the sidebar away from the bell. post limits are also tighter: concurrent rewrites now get claimed before ai runs, usable and unusable ai answers are handled separately, the reddit name-your-product-once rule gets one retry, rewrites only save the post they changed, and autopilot keeps its ai count when the ai did answer.