feat: add per-ride history charts with wait time and uptime tracking

Adds a cron-driven sampler that snapshots Queue-Times waits and Six Flags
Fast Lane data every 5 minutes into a new ride_wait_samples table, and a
clickable per-ride detail page at /park/[id]/ride/[slug] with Today / 7d /
30d Recharts views plus a 30d uptime pill. Rides are keyed by Queue-Times'
stable qt_ride_id so renames don't fragment history. Samples store
pre-bucketed local_date and local_time in the park's IANA timezone so
aggregations are pure SQL and DST-safe.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

lib/ride-slug.ts

@@ -0,0 +1,31 @@
+/**
+ * URL-safe slug generator for ride names.
+ *
+ * Used as a secondary key on the `rides` table — the primary key is
+ * (park_id, qt_ride_id) so renames don't lose history. The slug is just
+ * for pretty URLs.
+ *
+ * Steps:
+ *   1. NFD-normalize to split accented letters into base + combining mark
+ *   2. Strip combining marks (diacritics, U+0300–U+036F)
+ *   3. Strip trademark symbols
+ *   4. Lowercase
+ *   5. Replace any non-alphanumeric run with a single hyphen
+ *   6. Trim leading/trailing hyphens
+ *
+ * Examples:
+ *   "X²"                         → "x"
+ *   "Lex Luthor: Drop of Doom"   → "lex-luthor-drop-of-doom"
+ *   "Catwoman's Whip"            → "catwoman-s-whip"
+ *   "Façade"                     → "facade"
+ *   "Batman™ The Ride"           → "batman-the-ride"
+ */
+export function slugifyRideName(name: string): string {
+  return name
+    .normalize("NFD")
+    .replace(/[̀-ͯ]/g, "")
+    .replace(/[™®©]/g, "")
+    .toLowerCase()
+    .replace(/[^a-z0-9]+/g, "-")
+    .replace(/^-+|-+$/g, "");
+}

lib/scrapers/queuetimes.ts

@@ -19,6 +19,8 @@ const HEADERS = {
 };
 
 export interface LiveRide {
+  /** Stable Queue-Times ride ID — survives renames, used as the history key. */
+  qtRideId: number;
   name: string;
   isOpen: boolean;
   waitMinutes: number;
@@ -30,6 +32,8 @@ export interface LiveRide {
   hasFastLane?: boolean;
   /** Current Fast Lane wait in minutes; null = no data / walk-on. Set by the rides route. */
   fastLaneMinutes?: number | null;
+  /** URL-safe slug derived from name. Set by the rides route. */
+  slug?: string;
 }
 
 export interface LiveRidesResult {
@@ -95,6 +99,7 @@ export async function fetchLiveRides(
       for (const r of land.rides ?? []) {
         if (!r.name) continue;
         rides.push({
+          qtRideId: r.id,
           name: r.name,
           isOpen: r.is_open,
           waitMinutes: r.wait_time ?? 0,
@@ -108,6 +113,7 @@ export async function fetchLiveRides(
     for (const r of json.rides ?? []) {
       if (!r.name) continue;
       rides.push({
+        qtRideId: r.id,
         name: r.name,
         isOpen: r.is_open,
         waitMinutes: r.wait_time ?? 0,

lib/timezone.ts

@@ -0,0 +1,29 @@
+/**
+ * Format a Date as YYYY-MM-DD in an IANA timezone.
+ *
+ * Uses "en-CA" because that locale natively produces ISO-style dates,
+ * so we don't have to reassemble parts.
+ */
+export function formatLocalDate(d: Date, tz: string): string {
+  return new Intl.DateTimeFormat("en-CA", {
+    timeZone: tz,
+    year: "numeric",
+    month: "2-digit",
+    day: "2-digit",
+  }).format(d);
+}
+
+/**
+ * Format a Date as HH:MM (24-hour) in an IANA timezone.
+ */
+export function formatLocalTime(d: Date, tz: string): string {
+  const parts = new Intl.DateTimeFormat("en-GB", {
+    timeZone: tz,
+    hour: "2-digit",
+    minute: "2-digit",
+    hour12: false,
+  }).formatToParts(d);
+  const h = parts.find((p) => p.type === "hour")?.value ?? "00";
+  const m = parts.find((p) => p.type === "minute")?.value ?? "00";
+  return `${h}:${m}`;
+}