fix: bypass Data Cache on live park/ride pages so navigation shows fresh data

The ride detail and park pages fetched with `next: { revalidate: 60 }`,
which is stale-while-revalidate. After hours of no traffic the Data Cache
held a morning snapshot; the first click served that stale value and only
the second request (e.g. a browser refresh) got the just-revalidated
payload. The endpoint also bundles live state with chart history, so one
stale fetch made the whole page wrong.

Switch the live-data fetches to `cache: "no-store"`. The calendar-month
fetch keeps its 5-min ISR since operating hours change slowly.

lib/api.ts

@@ -31,13 +31,14 @@ export function getBackendUrl(): string {
  */
 export async function apiFetch<T>(
   path: string,
-  options: { revalidate?: number } = {},
+  options: { revalidate?: number; noStore?: boolean } = {},
 ): Promise<T | null> {
-  const { revalidate = 60 } = options;
+  const { revalidate = 60, noStore = false } = options;
   try {
-    const res = await fetch(`${getBackendUrl()}${path}`, {
-      next: { revalidate },
-    });
+    const res = await fetch(
+      `${getBackendUrl()}${path}`,
+      noStore ? { cache: "no-store" } : { next: { revalidate } },
+    );
     if (!res.ok) return null;
     return (await res.json()) as T;
   } catch {