required bolt in slack-bot.js

src/server/routes/apiv3/slack-bot.js

@@ -1,7 +1,13 @@
 const express = require('express');
+// const { App } = require('@slack/bolt');
 
 const router = express.Router();
 
+// const app = new App({
+//   token: process.env.SLACK_BOT_TOKEN,
+//   signingSecret: process.env.SLACK_SIGNING_SECRET,
+// });
+
 module.exports = (crowi) => {
   router.get('/', async(req, res) => {