slack integrations work with esm and run on start

Author: chpy04

src/backend/index.ts

@@ -17,6 +17,7 @@ import carsRouter from './src/routes/cars.routes.js';
 import organizationRouter from './src/routes/organizations.routes.js';
 import recruitmentRouter from './src/routes/recruitment.routes.js';
 import { getReceiver } from './src/integrations/slack.js';
+import './src/routes/slack.routes.js';
 import announcementsRouter from './src/routes/announcements.routes.js';
 import onboardingRouter from './src/routes/onboarding.routes.js';
 import popUpsRouter from './src/routes/pop-up.routes.js';

src/backend/src/integrations/slack.ts

@@ -1,6 +1,9 @@
-import { App, ExpressReceiver } from '@slack/bolt';
+import bolt from '@slack/bolt';
+import type { App, ExpressReceiver } from '@slack/bolt';
 import { HttpException } from '../utils/errors.utils.js';
 
+const { App: AppClass, ExpressReceiver: ExpressReceiverClass } = bolt;
+
 let receiver: ExpressReceiver | null = null;
 let slackApp: App | null = null;
 let slack: any = null; // Type will be inferred from slackApp.client (WebClient from Bolt)
@@ -23,12 +26,12 @@ const initializeSlack = () => {
   }
 
   // Initialize the receiver, app, and client
-  receiver = new ExpressReceiver({
+  receiver = new ExpressReceiverClass({
     signingSecret: SLACK_SIGNING_SECRET || '',
     endpoints: '/slack/events'
   });
 
-  slackApp = new App({
+  slackApp = new AppClass({
     token: SLACK_BOT_TOKEN,
     receiver
   });