## Changes
- Added a `requiresShell` function to detect when a command contains
shell operators
- In the `exec` function, enabled the `shell: true` option if shell
operators are present
## Why This Is Necessary
See the discussion in this issue comment:
https://github.com/openai/codex/issues/320#issuecomment-2816528014
## Code Explanation
The `requiresShell` function parses the command arguments and checks for
any shell‑specific operators. If it finds shell operators, it adds the
`shell: true` option when running the command so that it’s executed
through a shell interpreter.
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