ResourceUnavailable when running rg.exe in Codex App on Windows

What version of the Codex App are you using (From “About Codex” dialog)?

Codex 26.306.11636

What subscription do you have?

Business

What platform is your computer?

Microsoft Windows NT 10.0.26200.0 x64

What issue are you seeing?

When I run rg inside Codex App on Windows, it fails immediately instead of executing normally. The error I get is:

Program 'rg.exe' failed to run: Access is deniedAt line:2 char:1
+ rg -n "nextest|rstest|proptest" justfile
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~.
At line:2 char:1
+ rg -n "nextest|rstest|proptest" justfile
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ResourceUnavailable: (:) [], ApplicationFailedException
    + FullyQualifiedErrorId : NativeCommandFailed


### What steps can reproduce the bug?

Open Codex App on Windows, open any normal repository workspace, and run a ripgrep command such as:

```powershell
rg -n "nextest|rstest|proptest" justfile

### What is the expected behavior?

rg.exe` should run normally inside Codex App and return the expected search results, just like CLI tool do in the same session.

### Additional information

_No response_