fix: remove ReadKey, not needed for interactive sessions

Author: julienld

scripts/install-windows.ps1

@@ -152,10 +152,4 @@ Write-Host "  Replace HOMEASSISTANT_TOKEN with your token"
 Write-Host "  (Generate token in HA: Profile > Security > Long-lived tokens)"
 Write-Host ""
 
-# Keep window open if running interactively (not piped)
-if ([Environment]::UserInteractive -and -not [Console]::IsInputRedirected) {
-    Write-Host "Press any key to close this window..." -ForegroundColor Gray
-    $null = $Host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown")
-}
-
 exit 0