GMW/services/frontend/src/components/shell/ambient-app.tsx

import { MobileNav } from "./mobile-nav";
import { NavRail } from "./nav-rail";
import { TopBar } from "./topbar";

/**
 * App chrome: slim nav rail + sticky top bar + scrollable content region.
 * Sits above the fixed AmbientCanvas. Providers (Ambient + WS) are mounted in
 * the route layout so every page shares one live link and signal context.
 *
 * < md the side rail collapses (hidden) and a bottom tab bar (MobileNav)
 * takes over navigation; the content region gains bottom padding so the last
 * panel never hides behind the dock.
 */
export function AppFrame({ children }: { children: React.ReactNode }) {
  return (
    <div className="flex h-dvh w-full overflow-hidden">
      <NavRail />
      <div className="flex min-w-0 flex-1 flex-col">
        <TopBar />
        <main className="min-h-0 flex-1 overflow-y-auto px-4 pb-[calc(2rem+env(safe-area-inset-bottom))] pt-4 sm:px-5 sm:pb-[calc(2.5rem+env(safe-area-inset-bottom))]">
          {children}
        </main>
      </div>
      <MobileNav />
    </div>
  );
}