Shared machine-number helper, site-config for OpenText + PreInstall, placeholder type dirs

Three optimization batches from the pipeline audit:

1. Shared Update-MachineNumber.ps1 helper (lib/)
   Extracts duplicated machine-number update logic from Configure-PC.ps1,
   Check-MachineNumber.ps1, and Set-MachineNumber.ps1 into a shared
   dot-sourceable helper at Shopfloor/lib/Update-MachineNumber.ps1.

   Exports:
     Get-CurrentMachineNumber → @{ Udc = $string; Ednc = $string }
     Update-MachineNumber -NewNumber <n> [-Site <s>] → @{ UdcUpdated; EdncUpdated; Errors }

   All three consumers now dot-source the helper instead of duplicating
   ~50 lines each. Set-MachineNumber.ps1 also migrated from inline
   Get-SiteConfig to dot-sourcing Get-PCProfile.ps1 for consistency.

2. Site-config integration for remaining scripts
   Setup-OpenText.ps1: exclude lists (profiles + shortcuts) now read from
     site-config.json opentext section, falling back to West Jefferson
     defaults. Inline Get-SiteConfig since the script runs from
     C:\PreInstall\installers\opentext\ (can't dot-source Get-PCProfile).

   00-PreInstall-MachineApps.ps1: after parsing preinstall.json, scans
     InstallArgs for "West Jefferson" and replaces with site-config
     siteName if different. Inline Get-SiteConfig for same reason.

3. Placeholder type-specific directories
   Created skeleton 01-Setup-*.ps1 scripts for all PC types so the
   directory structure is in place and Run-ShopfloorSetup's type-specific
   loop has something to iterate over:
     Genspect/01-Setup-Genspect.ps1
     Keyence/01-Setup-Keyence.ps1
     WaxAndTrace/01-Setup-WaxAndTrace.ps1
     Lab/01-Setup-Lab.ps1
   Each logs a "no type-specific apps configured yet" banner and exits.
   Fill in app installs when details are finalized; for share-based
   installs, copy the CMM/01-Setup-CMM.ps1 pattern.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

playbook/shopfloor-setup/Standard/Set-MachineNumber.ps1

@@ -18,46 +18,15 @@
 Add-Type -AssemblyName Microsoft.VisualBasic
 Add-Type -AssemblyName System.Windows.Forms
 
-function Get-SiteConfig {
-    $configPath = 'C:\Enrollment\site-config.json'
-    if (-not (Test-Path -LiteralPath $configPath)) {
-        Write-Host "site-config.json not found - using defaults" -ForegroundColor DarkGray
-        return $null
-    }
-    try {
-        return (Get-Content -LiteralPath $configPath -Raw -ErrorAction Stop | ConvertFrom-Json)
-    } catch {
-        Write-Warning "Failed to parse site-config.json: $_"
-        return $null
-    }
-}
-$siteConfig = Get-SiteConfig
+. "$PSScriptRoot\..\Shopfloor\lib\Get-PCProfile.ps1"
+. "$PSScriptRoot\..\Shopfloor\lib\Update-MachineNumber.ps1"
 
-$udcSettingsPath = "C:\ProgramData\UDC\udc_settings.json"
-$udcExePath      = "C:\Program Files\UDC\UDC.exe"
-$ednRegPath      = "HKLM:\SOFTWARE\WOW6432Node\GE Aircraft Engines\DNC\General"
-$site            = if ($siteConfig) { $siteConfig.siteName } else { 'West Jefferson' }
+$site = if ($siteConfig) { $siteConfig.siteName } else { 'West Jefferson' }
 
 # --- Read current values for display ---
-$currentUdc  = $null
-$currentEdnc = $null
-
-if (Test-Path $udcSettingsPath) {
-    try {
-        $json = Get-Content $udcSettingsPath -Raw | ConvertFrom-Json
-        $currentUdc = $json.GeneralSettings.MachineNumber
-    } catch {
-        $currentUdc = "(unreadable: $_)"
-    }
-}
-
-if (Test-Path $ednRegPath) {
-    try {
-        $currentEdnc = (Get-ItemProperty -Path $ednRegPath -Name MachineNo -ErrorAction Stop).MachineNo
-    } catch {
-        $currentEdnc = $null
-    }
-}
+$currentMN   = Get-CurrentMachineNumber
+$currentUdc  = $currentMN.Udc
+$currentEdnc = $currentMN.Ednc
 
 # --- Show prompt with current state ---
 $promptLines = @()
@@ -87,66 +56,28 @@ if ($new -notmatch '^\d+$') {
     exit 1
 }
 
+$mnResult = Update-MachineNumber -NewNumber $new -Site $site
+
 $results = @()
-
-# --- 1. Stop UDC.exe before editing its JSON (avoid stale shutdown write) ---
-$udcProcs = Get-Process UDC -ErrorAction SilentlyContinue
-if ($udcProcs) {
-    Write-Host "Stopping UDC.exe ($($udcProcs.Count) instance(s))..."
-    $udcProcs | ForEach-Object {
-        try {
-            $_.Kill()
-            $_.WaitForExit(5000) | Out-Null
-        } catch {
-            Write-Warning "Failed to stop UDC.exe (PID $($_.Id)): $_"
-        }
-    }
-    Start-Sleep -Seconds 1
-}
-
-# --- 2. Update UDC settings JSON ---
-if (Test-Path $udcSettingsPath) {
-    try {
-        $json = Get-Content $udcSettingsPath -Raw | ConvertFrom-Json
-        $json.GeneralSettings.MachineNumber = $new
-        $json | ConvertTo-Json -Depth 99 | Set-Content -Path $udcSettingsPath -Encoding UTF8
-        Write-Host "UDC: $currentUdc -> $new"
-        $results += "UDC updated to $new"
-    } catch {
-        Write-Warning "Failed to update UDC settings: $_"
-        $results += "UDC FAILED: $_"
-    }
-} else {
-    Write-Warning "UDC settings file not found at $udcSettingsPath. Run UDC.exe at least once to initialize."
+if ($mnResult.UdcUpdated) {
+    Write-Host "UDC: $currentUdc -> $new"
+    $results += "UDC updated to $new"
+} elseif (-not (Test-Path 'C:\ProgramData\UDC\udc_settings.json')) {
     $results += "UDC: settings file missing (run UDC.exe once first)"
 }
-
-# --- 3. Update eDNC MachineNo registry value ---
-if (Test-Path $ednRegPath) {
-    try {
-        Set-ItemProperty -Path $ednRegPath -Name MachineNo -Value $new -Type String -Force
-        Write-Host "eDNC: $currentEdnc -> $new"
-        $results += "eDNC updated to $new"
-    } catch {
-        Write-Warning "Failed to update eDNC MachineNo: $_"
-        $results += "eDNC FAILED: $_"
-    }
-} else {
-    Write-Warning "eDNC registry key not found at $ednRegPath. Is eDNC installed?"
+if ($mnResult.EdncUpdated) {
+    Write-Host "eDNC: $currentEdnc -> $new"
+    $results += "eDNC updated to $new"
+} elseif (-not (Test-Path 'HKLM:\SOFTWARE\WOW6432Node\GE Aircraft Engines\DNC\General')) {
     $results += "eDNC: registry key missing (eDNC not installed?)"
 }
-
-# --- 4. Relaunch UDC.exe with new args (if installed) ---
-if (Test-Path $udcExePath) {
-    try {
-        Start-Process -FilePath $udcExePath -ArgumentList @("-site", "`"$site`"", "-machine", $new)
-        Write-Host "UDC.exe relaunched."
-    } catch {
-        Write-Warning "Failed to relaunch UDC.exe: $_"
-    }
+foreach ($err in $mnResult.Errors) {
+    Write-Warning $err
+    $results += $err
 }
+if ($mnResult.UdcUpdated) { Write-Host "UDC.exe relaunched." }
 
-# --- 5. Show summary ---
+# --- Show summary ---
 $summary = ($results -join "`n") + "`n`nTo apply eDNC changes, restart any running DncMain.exe."
 [System.Windows.Forms.MessageBox]::Show(
     $summary,