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/components/action-bar.tsx

@@ -521,7 +521,7 @@ export function ActionBar({
 		<div className="card-glow flex items-center gap-3 border-border border-t bg-card px-4 py-3 sm:rounded-lg sm:border">
 			<form
 				onSubmit={handleAdd}
-				className="relative flex flex-1 items-center gap-2"
+				className="relative flex flex-1 flex-wrap items-center gap-2 sm:flex-nowrap"
 			>
 				<div className="flex-1">
 					<div className="relative max-w-xs">