Fix express

api/index.ts

@@ -1,6 +1,7 @@
 import fs from 'node:fs';
 import path from 'node:path';
 import cors from 'cors';
+import express from 'express';
 import SwaggerUI from 'swagger-ui-express';
 import history, {Context} from 'connect-history-api-fallback';
 import Schema from '@openaddresses/batch-schema';