When Windows host connects to WSL remote, getEnvPathFromUserShell() was
returning undefined because it checked only process.platform === "win32".
Add remoteName parameter to getEnvPathFromUserShell() and use the
isWindowsHostWithWslRemote pattern (consistent with resolveCommandForPlatform)
to allow shell PATH detection for WSL remotes.
Fixes#9737
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
