Ability to permanently enable binaries like ls that persists across sessions

### Describe the feature or problem you'd like to solve

I get tired of every time I open a new session having to constantly hit yes to approve ls and grep commands (among others).

### Proposed solution

Create a config with whitelisted paths to local binaries like ls, grep or sed which allows for copilot to have permanent access to these binaries?

### Example prompts or workflows

Just less times where you have to hit yes if you always approve the same binaries every time

### Additional context

_No response_

No files or tests are named. Start by tracing the approval prompt for commands such as ls, grep, and sed, then inspect how session permissions and configuration are handled. Done means a documented configuration can persistently whitelist selected local binaries across sessions without repeated approval prompts.

由索引模型根据 Issue 内容生成。