[{"type":"text","text":"Done — committed `a86b877`, live now (just refresh).\n\nThe sidebar is now `position: fixed` — it stays locked to the left edge no matter how far the right panel scrolls, with its own internal scroll if the menu ever grows taller than the screen. The previous `sticky` approach wasn't holding because of how the flex body height interacts with the page scroll container; fixed positioning removes that dependency entirely."}]