Add headless server and setup script

setup.ps

@@ -0,0 +1,31 @@
+<#
+.SYNOPSIS
+    j3270 Terminal Emulator - Setup and Build Script (PowerShell Entrypoint)
+    Forwards execution directly to setup.ps1 with all supplied parameters.
+
+.DESCRIPTION
+    See setup.ps1 for full implementation, parameter definitions, and documentation.
+#>
+
+[CmdletBinding()]
+param (
+    [switch]$Run,
+    [switch]$Test,
+    [switch]$Clean,
+    [switch]$Help,
+    [Parameter(ValueFromRemainingArguments = $true)]
+    [string[]]$RunArgs
+)
+
+$scriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
+if (-not $scriptDir) {
+    $scriptDir = Get-Location
+}
+
+$ps1Script = Join-Path $scriptDir "setup.ps1"
+if (Test-Path $ps1Script) {
+    & $ps1Script @PSBoundParameters @RunArgs
+} else {
+    Write-Error "setup.ps1 not found in $scriptDir"
+    exit 1
+}