feat: add live ride status via Queue-Times.com API

Park detail pages now show real-time ride open/closed status and wait
times sourced from Queue-Times.com (updates every 5 min) when a park
is operating. Falls back to the Six Flags schedule API for off-hours
or parks without a Queue-Times mapping.

- lib/queue-times-map.ts: maps all 24 park IDs to Queue-Times park IDs
- lib/scrapers/queuetimes.ts: fetches and parses queue_times.json with
  5-minute ISR cache; returns LiveRidesResult with isOpen + waitMinutes
- app/park/[id]/page.tsx: tries Queue-Times first; renders LiveRideList
  with Live badge and per-ride wait times; falls back to RideList for
  schedule data when live data is unavailable
- README: documents two-tier ride status approach

Attribution: Queue-Times.com (displayed in UI per their API terms)

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

README.md

@@ -1,6 +1,6 @@
 # Six Flags Super Calendar
 
-A week-by-week calendar showing operating hours for all Six Flags Entertainment Group theme parks — including the former Cedar Fair parks. Data is scraped from the Six Flags internal API and stored locally in SQLite. Click any park to see its full month calendar and today's ride status.
+A week-by-week calendar showing operating hours for all Six Flags Entertainment Group theme parks — including the former Cedar Fair parks. Data is scraped from the Six Flags internal API and stored locally in SQLite. Click any park to see its full month calendar and live ride status with current wait times.
 
 ## Parks
 
@@ -21,6 +21,17 @@ A week-by-week calendar showing operating hours for all Six Flags Entertainment
 - **SQLite** via `better-sqlite3` — persisted in `/app/data/parks.db`
 - **Playwright** — one-time headless browser run to discover each park's internal API ID
 - **Six Flags CloudFront API** — `https://d18car1k0ff81h.cloudfront.net/operating-hours/park/{id}?date=YYYYMM`
+- **Queue-Times.com API** — live ride open/closed status and wait times, updated every 5 minutes
+
+## Ride Status
+
+The park detail page shows ride open/closed status using a two-tier approach:
+
+1. **Live data (Queue-Times.com)** — when a park is operating, ride status and wait times are fetched from the [Queue-Times.com API](https://queue-times.com/en-US/pages/api) and cached for 5 minutes. All 24 parks are mapped. Displays a **Live** badge with per-ride wait times.
+
+2. **Schedule fallback (Six Flags API)** — the Six Flags operating-hours API drops the current day from its response once a park opens. When Queue-Times data is unavailable, the app falls back to the nearest upcoming date from the Six Flags schedule API as an approximation.
+
+---
 
 ## Local Development