feat: use dateless Six Flags API endpoint for live today data

The API without a date param returns today's operating data directly,
invalidating the previous assumption that today's date was always missing.

- Add fetchToday(apiId, revalidate?) to sixflags.ts — calls the dateless
  endpoint with optional ISR cache
- Extract parseApiDay() helper shared by scrapeMonth and fetchToday
- Update upsertDay WHERE clause: >= date('now') so today can be updated
  (was > date('now'), which froze today after first write)
- scrape.ts: add a today-scrape pass after the monthly loop so each run
  always writes fresh today data to the DB
- app/page.tsx: fetch live today data for all parks (5-min ISR) and merge
  into the data map before computing open/closing/weatherDelay status
- app/park/[id]/page.tsx: prefer live today data from API for todayData
  so weather delays and hour changes surface within 5 minutes
- scrapeRidesForDay: update comment only — role unchanged (QT fallback)

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

app/park/[id]/page.tsx

@@ -5,6 +5,7 @@ import { PARK_MAP } from "@/lib/parks";
 import { openDb, getParkMonthData, getApiId } from "@/lib/db";
 import { scrapeRidesForDay } from "@/lib/scrapers/sixflags";
 import { fetchLiveRides } from "@/lib/scrapers/queuetimes";
+import { fetchToday } from "@/lib/scrapers/sixflags";
 import { QUEUE_TIMES_IDS } from "@/lib/queue-times-map";
 import { readParkMeta, getCoasterSet } from "@/lib/park-meta";
 import { ParkMonthCalendar } from "@/components/ParkMonthCalendar";
@@ -44,7 +45,13 @@ export default async function ParkPage({ params, searchParams }: PageProps) {
   const apiId = getApiId(db, id);
   db.close();
 
-  const todayData = monthData[today];
+  // Prefer live today data from the Six Flags API (5-min ISR cache) so that
+  // weather delays and hour changes surface immediately rather than showing
+  // stale DB values. Fall back to DB if the API call fails.
+  const liveToday = apiId !== null ? await fetchToday(apiId, 300).catch(() => null) : null;
+  const todayData = liveToday
+    ? { isOpen: liveToday.isOpen, hoursLabel: liveToday.hoursLabel ?? null, specialType: liveToday.specialType ?? null }
+    : monthData[today];
   const parkOpenToday = todayData?.isOpen && todayData?.hoursLabel;
 
   // ── Ride data: try live Queue-Times first, fall back to schedule ──────────
@@ -80,10 +87,8 @@ export default async function ParkPage({ params, searchParams }: PageProps) {
     liveRides.rides.length > 0 &&
     liveRides.rides.every((r) => !r.isOpen);
 
-  // Only hit the schedule API as a fallback when live data is unavailable
+  // Only hit the schedule API as a fallback when Queue-Times live data is unavailable.
   if (!liveRides && apiId !== null) {
-    // Note: the API drops today's date from its response (only returns future dates),
-    // so scrapeRidesForDay may fall back to the nearest upcoming date.
     ridesResult = await scrapeRidesForDay(apiId, today);
   }