use express-async-errors instead of catchAsync

```
const express = require('express');
require('express-async-errors');
const User = require('./models/user');
const app = express();

app.get('/users', async (req, res) => {
const users = await User.findAll();
res.send(users);
});
```

Start by locating the project's catchAsync helper and the Express application setup, then compare how async route handlers are currently registered with the express-async-errors usage shown in the issue. Done means the intended handlers use express-async-errors instead of catchAsync without changing their behavior; the issue does not name specific files or tests.

Written by the indexing model from the issue text.