e488f23f41
Replace the hard 350px sidebar / 450px right caps with max(800, viewport*0.7) so wide displays get a roomy file/terminal panel and the sidebar can grow with the screen. Pinned minimum is raised from 50px to 180px so panels don't collapse into unusable slivers. Caps now live in lib/state/layout-manager/caps.ts; constants module no longer exports per-column max-px constants.