feat: blue dot + Weather Delay notice for storm-closed parks

- Dot turns blue (instead of green) during weather delay on homepage
- Mobile card "Open today" badge becomes blue "⛈ Weather Delay"
- Park page LiveRidePanel shows a blue "⛈ Weather Delay — all rides currently closed" badge instead of "Not open yet — check back soon"
- Added --color-weather-* CSS variables (blue palette)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/park/[id]/page.tsx

@@ -73,6 +73,13 @@ export default async function ParkPage({ params, searchParams }: PageProps) {
     }
   }
 
+  // Weather delay: park is within operating hours but queue-times shows 0 open rides
+  const isWeatherDelay =
+    withinWindow &&
+    liveRides !== null &&
+    liveRides.rides.length > 0 &&
+    liveRides.rides.every((r) => !r.isOpen);
+
   // Only hit the schedule API as a fallback when live data is unavailable
   if (!liveRides && apiId !== null) {
     // Note: the API drops today's date from its response (only returns future dates),
@@ -157,6 +164,7 @@ export default async function ParkPage({ params, searchParams }: PageProps) {
             <LiveRidePanel
               liveRides={liveRides}
               parkOpenToday={!!parkOpenToday}
+              isWeatherDelay={isWeatherDelay}
             />
           ) : (
             <RideList