Make Test-Path more robust

[andy1li]

Context:

https://secure.helpscout.net/conversation/3244692401/11524?viewId=8414074

Without -LiteralPath, this error can happen:

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Note

Low Risk
Low risk: only tweaks Windows installer script path checks and temp cleanup behavior, with minimal impact beyond more reliable installs and slightly different cleanup failure handling.

Overview
Improves the Windows install.ps1 script’s robustness by switching Test-Path calls to -LiteralPath for both the install directory and temp directory checks, avoiding failures with special characters in paths.

Also hardens temp-folder cleanup by wrapping Remove-Item in a try/catch, using -ErrorAction Stop, and emitting a warning if cleanup fails instead of silently ignoring errors.

^{Written by Cursor Bugbot for commit b371668. This will update automatically on new commits. Configure here.}

[andy1li]

Thanks to @GregMarshall999 for highlighting the issue!