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, "");
+}