fix(docker):

Dockerfile

@@ -3,4 +3,5 @@ WORKDIR /app
 COPY package*.json ./
 RUN npm install
 COPY . .
+EXPOSE 3000
 CMD ["node", "server.js"]

server.js

@@ -2,6 +2,9 @@ import app from './index.js';
 
 const PORT = process.env.PORT || 3000;
 
+console.log('Environment variables:', process.env);
+console.log('Attempting to start on port:', PORT);
+
 app.listen(PORT, '0.0.0.0', () => {
   console.log(`Server is running on port ${PORT}`);
 });