Vouch request: getrou

[getrou]

What do you want to work on?

Add exec functionality to OpenShell MXC driver for Windows, and start lighting up conformance and e2e tests on Process Container and Session Container backends.
#5468

Why this change?

To start filling out OpenShell test cases and scenarios for Windows to develop against when working on Process and Session Containers.

Checklist

• I wrote this request myself (not AI-generated)
• I have read CONTRIBUTING.md