historical weather

src/lib/components/navigation/header.svelte

@@ -12,6 +12,8 @@
 	import LocationSearch from '$lib/components/location/location-search.svelte';
 	import UnitSelector from '$lib/components/unit-selector.svelte';
 
+	import PremiumBadge from '$lib/paywall/PremiumBadge.svelte';
+
 	interface Props {
 		onMenuToggle?: () => void;
 	}
@@ -46,6 +48,8 @@
 			goto(resolve('/weather/compare/[location]', { location: locationRoute }));
 		} else if (currentPath.startsWith('/weather/14-day')) {
 			goto(resolve('/weather/14-day/[location]', { location: locationRoute }));
+		} else if (currentPath.startsWith('/weather/historical')) {
+			goto(resolve('/weather/historical/[location]', { location: locationRoute }));
 		} else {
 			goto(resolve('/weather/week/[location]', { location: locationRoute }));
 		}
@@ -105,6 +109,9 @@
 	<!-- Measurement units -->
 	<UnitSelector />
 
+	<!-- Premium status / unlock -->
+	<PremiumBadge />
+
 	<!-- Theme toggle: system → light → dark -->
 	<button
 		class="flex h-9 w-9 shrink-0 cursor-pointer items-center justify-center rounded-full border border-border/70 text-muted-foreground transition-colors hover:bg-muted hover:text-foreground"

src/lib/components/navigation/weather-nav.svelte

@@ -30,6 +30,12 @@
 				'M3 15a4 4 0 004 4h9a5 5 0 10-.1-9.999 5.002 5.002 0 10-9.78 2.096A4.001 4.001 0 003 15z'
 			]
 		},
+		{
+			title: 'Historical',
+			url: '/weather/historical' as const,
+			// clock with a counter-clockwise arrow (history)
+			iconPaths: ['M12 8v4l3 2', 'M3.5 9a9 9 0 1 0 2.2-3.6L3 8m0-4.5V8h4.5']
+		},
 		{
 			title: 'Maps',
 			url: '/weather/maps' as const,