Add mobile foundation: iOS zoom fix, safe area insets, row padding

- Input base font 16px on mobile to prevent iOS Safari auto-zoom
- Safe area insets for notched phones (top/bottom bars)
- viewport-fit=cover to enable safe area env() values
- Action bar flex-wrap for custom stat field overflow
- Slightly increased row padding on mobile (py-3 sm:py-2)
- Removed redundant font-size classes from Input usages

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/web/src/App.tsx

@@ -46,7 +46,10 @@ export function App() {
 			<div className="relative mx-auto flex min-h-0 w-full flex-1 flex-col gap-3 sm:max-w-2xl sm:px-4">
 				{!!actionBarAnim.showTopBar && (
 					<div
-						className={cn("shrink-0 sm:pt-8", actionBarAnim.topBarClass)}
+						className={cn(
+							"shrink-0 pt-[env(safe-area-inset-top)] sm:pt-[max(env(safe-area-inset-top),2rem)]",
+							actionBarAnim.topBarClass,
+						)}
 						onAnimationEnd={actionBarAnim.onTopBarExitEnd}
 					>
 						<TurnNavigation />
@@ -85,7 +88,10 @@ export function App() {
 						</div>
 
 						<div
-							className={cn("shrink-0 sm:pb-8", actionBarAnim.settlingClass)}
+							className={cn(
+								"shrink-0 pb-[env(safe-area-inset-bottom)] sm:pb-[max(env(safe-area-inset-bottom),2rem)]",
+								actionBarAnim.settlingClass,
+							)}
 							onAnimationEnd={actionBarAnim.onSettleEnd}
 						>
 							<ActionBar