add a switch to support not Limit search_files to look within the workspace

### App Version

3.20.2

### API Provider

Anthropic

### Model Used

all

### 🔁 Steps to Reproduce

add a switch to support not Limit search_files to look within the workspace

### 💥 Outcome Summary

add a switch to support not Limit search_files to look within the workspace

### 📄 Relevant Logs or Errors (Optional)

```shell

```