feat: park page operating window check; always show ride total

- Extract isWithinOperatingWindow() to lib/env.ts (shared)
- Park detail page: always fetch Queue-Times, but force all rides
  closed when outside the ±1h operating window
- LiveRidePanel: always show closed ride count badge (not just when
  some rides are also open); label reads "X rides total" when none
  are open vs "X closed / down" when some are

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

lib/env.ts

@@ -33,3 +33,27 @@ export function getTodayLocal(): string {
   const d = String(now.getDate()).padStart(2, "0");
   return `${y}-${m}-${d}`;
 }
+
+/**
+ * Returns true when the current local time is within 1 hour before open
+ * or 1 hour after close, based on a hoursLabel like "10am – 6pm".
+ * Falls back to true when the label can't be parsed.
+ */
+export function isWithinOperatingWindow(hoursLabel: string): boolean {
+  const m = hoursLabel.match(
+    /^(\d+)(?::(\d+))?(am|pm)\s*[–-]\s*(\d+)(?::(\d+))?(am|pm)$/i
+  );
+  if (!m) return true;
+  const toMinutes = (h: string, min: string | undefined, period: string) => {
+    let hours = parseInt(h, 10);
+    const minutes = min ? parseInt(min, 10) : 0;
+    if (period.toLowerCase() === "pm" && hours !== 12) hours += 12;
+    if (period.toLowerCase() === "am" && hours === 12) hours = 0;
+    return hours * 60 + minutes;
+  };
+  const openMin  = toMinutes(m[1], m[2], m[3]);
+  const closeMin = toMinutes(m[4], m[5], m[6]);
+  const now = new Date();
+  const nowMin = now.getHours() * 60 + now.getMinutes();
+  return nowMin >= openMin - 60 && nowMin <= closeMin + 60;
+}