feat: RCDB-backed roller coaster filter with fuzzy name matching

- Add lib/park-meta.ts to manage data/park-meta.json (rcdb_id + coaster lists)
- Add lib/scrapers/rcdb.ts to scrape operating coaster names from RCDB park pages
- discover.ts now seeds park-meta.json with skeleton entries for all parks
- scrape.ts now refreshes RCDB coaster lists (30-day staleness) for parks with rcdb_id set
- fetchLiveRides() accepts a coasterNames Set; isCoaster uses normalize() on both sides
  to handle trademark symbols, 'THE ' prefixes, and punctuation differences between
  Queue-Times and RCDB names — applies correctly to both land rides and top-level rides
- Commit park-meta.json so it ships in the Docker image (fresh volumes get it automatically)
- Update .gitignore / .dockerignore to exclude only *.db files, not all of data/
- Dockerfile copies park-meta.json into image before VOLUME declaration
- README: document coaster filter setup and correct staleness window (72h not 7d)

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

scripts/discover.ts

@@ -17,6 +17,7 @@ import { chromium } from "playwright";
 import { openDb, getApiId, setApiId, type DbInstance } from "../lib/db";
 import { PARKS } from "../lib/parks";
 import { fetchParkInfo, isMainThemePark } from "../lib/scrapers/sixflags";
+import { readParkMeta, writeParkMeta, defaultParkMeta } from "../lib/park-meta";
 
 const CLOUDFRONT_PATTERN = /operating-hours\/park\/(\d+)/;
 
@@ -124,11 +125,39 @@ async function main() {
     await new Promise((r) => setTimeout(r, 2000));
   }
 
+  // ── Ensure park-meta.json has a skeleton entry for every park ────────────
+  // Users fill in rcdb_id manually; scrape.ts populates coasters[] from RCDB.
+  const meta = readParkMeta();
+  let metaChanged = false;
+
+  for (const park of PARKS) {
+    if (!meta[park.id]) {
+      meta[park.id] = defaultParkMeta();
+      metaChanged = true;
+    }
+  }
+  // Remove entries for parks no longer in the registry
+  for (const id of Object.keys(meta)) {
+    if (!PARKS.find((p) => p.id === id)) {
+      delete meta[id];
+      metaChanged = true;
+    }
+  }
+
+  if (metaChanged) {
+    writeParkMeta(meta);
+    console.log("\nUpdated data/park-meta.json");
+    console.log("  → Set rcdb_id for each park to enable the coaster filter.");
+    console.log("    Find a park's RCDB ID from: https://rcdb.com (the number in the URL).");
+  }
+
   // Print summary
   console.log("\n── Discovered IDs ──");
   for (const park of PARKS) {
     const id = getApiId(db, park.id);
-    console.log(`  ${park.id.padEnd(30)} ${id ?? "NOT FOUND"}`);
+    const rcdbId = meta[park.id]?.rcdb_id;
+    const rcdbStr = rcdbId ? `rcdb:${rcdbId}` : "rcdb:?";
+    console.log(`  ${park.id.padEnd(30)} api:${String(id ?? "?").padEnd(8)} ${rcdbStr}`);
   }
 
   db.close();