[Bug] Permissions menu help text misleading: ESC behavior unclear for save vs cancel

**Bug Description**
when configuring /permissions - recently denied: help text says "ESC to cancel", but doesn't mention how to save+exit. That leaves the user in a menu with no obvious way out to save changes.

Unfortunately, ESC *also* saves permissions, but this is undocumented and misleading and could result in unwanted permissions configured, since the user expects ESC to **cancel** changes.

**Environment Info**
- Platform: darwin
- Terminal: Apple_Terminal
- Version: 2.1.272
- Feedback ID: c7d2a04e-08ee-404c-a74d-b80454028271

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

Start at the /permissions menu help text and verify the current ESC behavior for saving and canceling. The issue mentions no file or test, so locate the menu entry point first; done means the displayed instructions clearly distinguish how to save and how to cancel without misleading users.

Written by the indexing model from the issue text.