fix: formatting and typecheck

scripts/new-data-fix.ts

@@ -66,4 +66,8 @@ func init() {
   process.stdout.write(`${filePath}\n`);
 }
 
-await main();
+main().catch((error: unknown) => {
+  const message = error instanceof Error ? error.message : String(error);
+  process.stderr.write(`${message}\n`);
+  process.exitCode = 1;
+});