UnifiedExec Function Call in Wrong Directory After Commit c09ed74a

What version of Codex is running?

source code on main branch

Which model were you using?

_No response_

What platform is your computer?

_No response_

What steps can reproduce the bug?

1. Merge commit c09ed74a into the codebase.
2. Start the task via the local Codex environment.
3. Trigger the function call to execute the ls -la command.
4. Observe the output in the JSONL log which shows the function being executed in the wrong directory (/user instead of the current working directory).

What is the expected behavior?

_No response_

What do you see instead?

_No response_

Additional information

_No response_