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>

tests/ride-slug.test.ts

@@ -0,0 +1,45 @@
+/**
+ * Slug determinism tests. The slug is a URL-safe secondary key on the
+ * `rides` table — same name must always produce the same slug.
+ *
+ * Run with: npm test
+ */
+
+import { test } from "node:test";
+import assert from "node:assert/strict";
+import { slugifyRideName } from "../lib/ride-slug";
+
+const CASES: [name: string, expected: string][] = [
+  ["Goliath", "goliath"],
+  ["X²", "x"],
+  ["Lex Luthor: Drop of Doom", "lex-luthor-drop-of-doom"],
+  ["Catwoman's Whip", "catwoman-s-whip"],
+  ["Façade", "facade"],
+  ["Le Monstre", "le-monstre"],
+  ["Batman™ The Ride", "batman-the-ride"],
+  ["THE RIDDLER's Revenge", "the-riddler-s-revenge"],
+  ["Joker y Harley Quinn", "joker-y-harley-quinn"],
+  ["Apocalypse  the  Ride", "apocalypse-the-ride"],
+  ["  Leading and trailing  ", "leading-and-trailing"],
+  ["123 Numeric", "123-numeric"],
+  ["!!!", ""],
+];
+
+for (const [name, expected] of CASES) {
+  test(`slugify "${name}" → "${expected}"`, () => {
+    assert.equal(slugifyRideName(name), expected);
+  });
+}
+
+test("slug is idempotent — slugifying the result yields the same value", () => {
+  for (const [name] of CASES) {
+    const once = slugifyRideName(name);
+    if (once === "") continue;
+    assert.equal(slugifyRideName(once), once, `Expected idempotent slug for "${name}"`);
+  }
+});
+
+test("same name always produces the same slug", () => {
+  const name = "Twisted Cyclone";
+  assert.equal(slugifyRideName(name), slugifyRideName(name));
+});