fix:bug

src/server.ts

@@ -2,6 +2,7 @@ import express from 'express';
 import cors from 'cors';
 import morgan from 'morgan';
 import dotenv from 'dotenv';
+import path from 'path';
 
 import { authRouter } from './wechatAuth';
 
@@ -13,6 +14,9 @@ app.use(cors());
 app.use(express.json());
 app.use(morgan('dev'));
 
+const publicDir = path.join(__dirname, '../public');
+app.use(express.static(publicDir));
+
 app.get('/health', (_req, res) => {
   res.json({ status: 'ok' });
 });