[Feature Request] Clarify browser code entry during terminal login flow

**Bug Description**
The login process from the terminal session should be clear about entering the code into the browser window instead of the terminal session.

**Environment Info**
- Platform: darwin
- Terminal: pycharm
- Version: 2.1.273
- Feedback ID: 98b59ebe-51cc-44b0-b699-538aceffe5ac

**Errors**
```json
[]
```

Start by reproducing the terminal login flow described in the issue on the reported macOS/PyCharm environment and identify where the browser code prompt is presented. Update the login guidance so users know the code belongs in the browser, then verify the wording during the complete terminal authentication flow.

Written by the indexing model from the issue text.