zm-oai a92eae0891 Restore PowerShell's working directory in the MXC sandbox (#60647) ...

## Why

When a workspace has an unreadable ancestor, PowerShell can start with `$PWD` unset and its filesystem drive at the root, breaking relative paths.

## What changed

Prefix PowerShell commands in the MXC sandbox with a guarded workaround that restores the location from the process working directory when `$PWD` is unset. Preserve locations already initialized by startup or a profile.

## Testing

Extend the MXC PowerShell integration test to cover an unreadable ancestor, checking that `$PWD` matches the process working directory, relative file access works, and the parent and sibling file remain inaccessible.

GitOrigin-RevId: 4fb067db52a7f3c6e819169016fe6bd104a277a1

2026-11-10 19:40:10 +00:00

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apply_patch.lark

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mxc_pwsh_cwd.ps1

Restore PowerShell's working directory in the MXC sandbox (#60647)

2026-11-10 19:40:10 +00:00