test: add coaster name matching test suite

Extract matching logic into lib/coaster-match.ts (isCoasterMatch + normalizeForMatch)
so it can be imported by both the scraper and tests without duplication.

Add tests/coaster-matching.test.ts covering all known match/false-positive cases:
- Trademark symbols, leading THE, possessives, punctuation
- Subtitle variants in both directions (Apocalypse, New Revolution - Classic)
- Space-split brand words (BAT GIRL vs Batgirl)
- 4D subtitle extension (THE JOKER™ 4D Free Fly Coaster vs Joker)
- False positives: Joker y Harley Quinn, conjunction connectors

Run with: npm test

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

lib/coaster-match.ts

@@ -0,0 +1,64 @@
+/**
+ * Coaster name matching — shared between the Queue-Times scraper and tests.
+ *
+ * Queue-Times and RCDB use different name conventions:
+ *   - Trademark symbols (™ ® ©)
+ *   - Leading "THE " prefixes
+ *   - Possessives ("Catwoman's" vs "Catwoman")
+ *   - Subtitles added or dropped ("Apocalypse" vs "Apocalypse the Ride")
+ *   - Space-split brand words ("BAT GIRL" vs "Batgirl")
+ *   - Conjunction-joined compound rides ("Joker y Harley Quinn" ≠ "Joker")
+ */
+
+// Words that join two ride names rather than extend one subtitle.
+// When a prefix match is found and the next word is one of these,
+// the longer name is a *different* ride, not a subtitle.
+const CONJUNCTIONS = new Set(["y", "and", "&", "with", "de", "del", "e", "et"]);
+
+/**
+ * Normalize a ride name for matching.
+ * Both sides (Queue-Times and RCDB) must be normalized with this function
+ * before any comparison so the transforms are symmetric.
+ */
+export function normalizeForMatch(name: string): string {
+  return name
+    .replace(/[\u2122\u00ae\u00a9™®©]/g, "")   // strip ™ ® ©
+    .replace(/^the\s+/i, "")                    // strip leading "THE "
+    .replace(/['\u2019]s\b/gi, "")              // strip possessives ('s / 's)
+    .replace(/[^\w\s]/g, " ")                   // all remaining punctuation → space
+    .replace(/\s+/g, " ")
+    .toLowerCase()
+    .trim();
+}
+
+/**
+ * Returns true when the Queue-Times ride name matches an entry in the RCDB
+ * coaster set (which must be built with normalizeForMatch).
+ *
+ * Matching strategy (in order):
+ * 1. Exact normalized match.
+ * 2. Compact (space-stripped) match — catches "BAT GIRL" vs "Batgirl".
+ * 3. Prefix match — the shorter normalized name is a prefix of the longer,
+ *    minimum 5 chars, unless the next word after the prefix is a conjunction
+ *    (which signals a compound ride name, not a subtitle).
+ */
+export function isCoasterMatch(qtName: string, coasterSet: Set<string>): boolean {
+  const norm = normalizeForMatch(qtName);
+  if (coasterSet.has(norm)) return true;
+
+  const compact = norm.replace(/\s/g, "");
+  for (const c of coasterSet) {
+    // Compact comparison
+    if (compact.length >= 5 && c.replace(/\s/g, "") === compact) return true;
+
+    // Prefix comparison
+    const shorter = norm.length <= c.length ? norm : c;
+    const longer  = norm.length <= c.length ? c : norm;
+    if (shorter.length >= 5 && longer.startsWith(shorter)) {
+      const nextWord = longer.slice(shorter.length).trim().split(" ")[0];
+      if (!CONJUNCTIONS.has(nextWord)) return true;
+    }
+  }
+
+  return false;
+}