Simon Knott 6efdc90078
fix: show custom error for modal state (#240)
Calling a tool that resolves modal state, when there's no such modal
state visible, currently shows this misleading message:

```md
Tool "browser_file_upload" does not handle the modal state.
### Modal state
```

Instead, we should show the error message from the tool implementation.
2025-04-29 18:48:52 +02:00
..
2025-04-22 13:24:38 +02:00
2025-04-22 13:24:38 +02:00
2025-04-22 13:24:38 +02:00