PR Summary

This pull request introduces two main changes to improve functionality and error handling in the ShowCommand feature. The first change brings back a helper method to generate module import scripts with support for remote and local runspaces.

The second change enhances error handling by restricting the ShowCommand feature in specific remoting scenarios.

New functionality:

• src/Microsoft.Management.UI.Internal/commandHelpers/ShowCommandHelper.cs: Added the GetImportModuleCommand method to generate a script for importing a module and refreshing command data. This method supports both local and remote runspaces and handles first and subsequent attempts differently.

Improved error handling:

• src/Microsoft.PowerShell.Commands.Utility/commands/utility/ShowCommand/ShowCommand.cs: Added a check in the BeginProcessing method to prevent the ShowCommand feature from running in restricted remoting sessions. If the session is restricted, a terminating error is thrown with an appropriate error message.

PR Context

Fixes #25556
Introduced in #20593

PR Checklist

• PR has a meaningful title
  • Use the present tense and imperative mood when describing your changes
• Summarized changes
• Make sure all .h, .cpp, .cs, .ps1 and .psm1 files have the correct copyright header
• This PR is ready to merge. If this PR is a work in progress, please open this as a Draft Pull Request and mark it as Ready to Review when it is ready to merge.
• Breaking changes
  • None
  • OR
  • Experimental feature(s) needed
    • Experimental feature name(s):
• User-facing changes
  • Not Applicable
  • OR
  • Documentation needed
    • Issue filed:
• Testing - New and feature
  • N/A or can only be tested interactively
  • OR
  • Make sure you've added a new test if existing tests do not effectively test the code changed