feat(cli): detect wsl and spawn appropriate shell

[uinstinct]

Description

When on a windows machine but cn runs inside WSL, terminal commands should also run inside WSL and not using windows powershell.

closes #9736
closes #9731

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• [] The relevant tests, if any, have been updated or created

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Summary by cubic

Terminal commands now run inside WSL when the CLI is used from WSL on Windows. This avoids PowerShell and ensures commands run in the correct Linux environment.

• New Features
  • Detect WSL via WSL_DISTRO_NAME and /proc/version.
  • Use bash as a login shell in WSL instead of PowerShell.
  • Added tests for WSL detection and non-Linux behavior.

^{Written for commit a9ae420. Summary will update on new commits.}

[cubic-dev-ai]

No issues found across 2 files

[sestinj]

🎉 This PR is included in version 1.9.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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