feat: add debug script for inspecting raw API data per park+date

npm run debug -- --park greatadventure --date 2026-07-04

Prints the raw API response for that day alongside the parsed result
so mismatched or missing hours can be traced to their source.

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

lib/scrapers/sixflags.ts

@@ -97,6 +97,19 @@ async function fetchApi(url: string, attempt = 0, totalWaitedMs = 0): Promise<Ap
   return res.json() as Promise<ApiResponse>;
 }
 
+/**
+ * Fetch the raw API response for a month — used by scripts/debug.ts.
+ */
+export async function scrapeMonthRaw(
+  apiId: number,
+  year: number,
+  month: number
+): Promise<ApiResponse> {
+  const dateParam = `${year}${String(month).padStart(2, "0")}`;
+  const url = `${API_BASE}/${apiId}?date=${dateParam}`;
+  return fetchApi(url);
+}
+
 /**
  * Fetch operating hours for an entire month in a single API call.
  * apiId must be pre-discovered via scripts/discover.ts.