Fix uninstall command premature exit

[TinaMor]

PR Description

This PR ensures uninstall routines no longer exit prematurely on empty directories.

Current implementation:

containers-toolkit/containers-toolkit/Public/ContainerdTools.psm1

Lines 334 to 337 in 216fb37

	if (Test-EmptyDirectory -Path $path) {
	Write-Output "$tool does not exist at $Path or the directory is empty"
	return
	}

This causes the command to exit prematurely, even when the -purge flag is passed.

Additionl tasks:

1. Properly quotes executable paths for command invocations.
2. Refactors HNS module import logic
3. Use $TestDrive instead of TestDtivr:\ in Buildkit Tests
4. Update unit tests

Checklist

As part of our commitment to engineering excellence, before submitting this PR, please ensure:

• You have tested this code in both Desktop and Server environments, as well as AMD64 and ARM64 environments (functional testing).
• You have added unit tests for new code.
• You have added or updated documentation in the cmdlet docs, command-reference.md, and the modules help files.
• You have reviewed the PR/code best practices defined in the CONTRIBUTING.md.

In addition, after this PR has been reviewed, please ensure:

• If you make changes while addressing review comments, you test the final version again in both AMD64 and ARM64 environments.
• You validate that your changes have not introduced any regressions.

[Copilot]

Pull Request Overview

This PR ensures uninstall routines no longer exit prematurely on empty directories and properly quotes executable paths for command invocations. It also refactors HNS module import logic and updates unit tests to mock the new patterns.

• Allow -Purge logic to run even when no binaries are found by removing early exit checks.
• Locate and quote executable paths (nerdctl.exe, containerd.exe, buildkitd.exe) before invoking commands.
• Refactor HNS import to use Get-Module and pipeline import, and adjust related tests.

Reviewed Changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
containers-toolkit/Public/NerdctlTools.psm1	Removed empty‐dir guard, added executable lookup and pruning flags
containers-toolkit/Public/ContainerdTools.psm1	Removed early exit, quoted executable paths, updated uninstall helper
containers-toolkit/Public/ContainerNetworkTools.psm1	Refactored HNS import via Get-Module pipeline
containers-toolkit/Public/BuildkitTools.psm1	Quoted commands, replaced service setup warning message
Tests/NerdctlTools.Tests.ps1	Mocked executable lookup, updated prune argument
Tests/ContainerNetworkTools.Tests.ps1	Adjusted expectations around Get-Module and Import-Module
Tests/BuildkitTools.Tests.ps1	Introduced CleanupTestDrive, cleaned up duplicated paths

Comments suppressed due to low confidence (2)

containers-toolkit/Public/BuildkitTools.psm1:143

• [nitpick] Use "set up" (verb) instead of "setup" for verb usage: e.g., "Failed to set up Buildkitd service. $_".

Write-Warning "Failed to setup Buildkitd service. $_"

Tests/BuildkitTools.Tests.ps1:35

• The hard-coded path "TestDrive:\" duplicates the $TestDrive variable. Consider using "$TestDrive" consistently to avoid path mismatches and simplify cleanup logic.

Get-ChildItem -Path "TestDrive:\\" -Recurse -Force -ErrorAction SilentlyContinue | `