Machine number input at PXE menu for Standard PCs

Adds a machine number prompt to startnet.cmd after the Standard sub-type
selection. Tech enters the number during the PXE boot process. Defaults
to 9999 if Enter is pressed (existing placeholder behavior).

Written to C:\Enrollment\machine-number.txt alongside pc-type.txt.

Consumers:
  00-PreInstall-MachineApps.ps1 - replaces 9999 in UDC InstallArgs with
    the entered number, so UDC installs with the correct machine number
    from the start (no post-setup Set-MachineNumber needed).
  01-eDNC.ps1 - writes the machine number to the DNC\General\MachineNo
    registry value during eDNC install.
  Configure-PC.ps1 - existing $needsMachineNumber check already skips
    the prompt when UDC/eDNC aren't at 9999, so no change needed.

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

playbook/shopfloor-setup/Shopfloor/00-PreInstall-MachineApps.ps1

@@ -129,6 +129,25 @@ if ($siteConfig -and $siteConfig.siteName -and $siteConfig.siteName -ne 'West Je
     Write-PreInstallLog "No site-config override for siteName (using defaults in preinstall.json)"
 }
 
+# --- Machine-number override: replace "9999" in UDC InstallArgs if tech entered a number ---
+$machineNumFile = 'C:\Enrollment\machine-number.txt'
+if (Test-Path -LiteralPath $machineNumFile) {
+    $machineNum = (Get-Content -LiteralPath $machineNumFile -First 1 -ErrorAction SilentlyContinue).Trim()
+    if ($machineNum -and $machineNum -ne '9999' -and $machineNum -match '^\d+$') {
+        Write-PreInstallLog "Machine number from PXE menu: $machineNum"
+        foreach ($app in $config.Applications) {
+            if ($app.InstallArgs -and $app.InstallArgs -match '9999') {
+                $app.InstallArgs = $app.InstallArgs -replace '9999', $machineNum
+                Write-PreInstallLog "  Overrode machine number in $($app.Name) args: $($app.InstallArgs)"
+            }
+        }
+    } else {
+        Write-PreInstallLog "Machine number: $machineNum (default placeholder)"
+    }
+} else {
+    Write-PreInstallLog "No machine-number.txt found (using 9999 default)"
+}
+
 # --- Detection helper (mirrors Simple-Install.ps1's Test-ApplicationInstalled) ---
 function Test-AppInstalled {
     param($App)

playbook/shopfloor-setup/Standard/01-eDNC.ps1

@@ -61,11 +61,21 @@ foreach ($c in $copies) {
     }
 }
 
-# --- 3. Set DNC site ---
+# --- 3. Set DNC site + machine number ---
 $regBase = "HKLM\SOFTWARE\WOW6432Node\GE Aircraft Engines\DNC"
 reg add "$regBase\General" /v Site /t REG_SZ /d $siteNameCompact /f | Out-Null
 Write-Host "  DNC site set to $siteNameCompact."
 
+# Set machine number if tech entered one during PXE menu (defaults to 9999)
+$machineNumFile = 'C:\Enrollment\machine-number.txt'
+$machineNum = '9999'
+if (Test-Path -LiteralPath $machineNumFile) {
+    $num = (Get-Content -LiteralPath $machineNumFile -First 1 -ErrorAction SilentlyContinue).Trim()
+    if ($num -and $num -match '^\d+$') { $machineNum = $num }
+}
+reg add "$regBase\General" /v MachineNo /t REG_SZ /d $machineNum /f | Out-Null
+Write-Host "  DNC MachineNo set to $machineNum."
+
 # --- 4. Deploy custom eMxInfo.txt to both Program Files paths ---
 if (Test-Path $emxInfo) {
     $dest86 = "C:\Program Files (x86)\DNC\Server Files"

playbook/startnet.cmd

@@ -122,6 +122,13 @@ set /p standard_choice=Enter your choice (1-2):
 if "%standard_choice%"=="1" set PCSUBTYPE=Timeclock
 if "%standard_choice%"=="2" set PCSUBTYPE=Machine
 if "%PCSUBTYPE%"=="" goto standard_menu
+
+REM --- Machine number (Standard only) ---
+set MACHINENUM=9999
+echo.
+set /p MACHINENUM=Enter machine number (digits, or Enter for 9999):
+if "%MACHINENUM%"=="" set MACHINENUM=9999
+echo Machine number: %MACHINENUM%
 :skip_standard_menu
 
 REM --- Display sub-type ---
@@ -278,6 +285,7 @@ if "%PCTYPE%"=="" goto cleanup_enroll
 echo %PCTYPE%> W:\Enrollment\pc-type.txt
 if not "%DISPLAYTYPE%"=="" echo %DISPLAYTYPE%> W:\Enrollment\display-type.txt
 if not "%PCSUBTYPE%"=="" echo %PCSUBTYPE%> W:\Enrollment\pc-subtype.txt
+if not "%MACHINENUM%"=="" echo %MACHINENUM%> W:\Enrollment\machine-number.txt
 copy /Y "Y:\shopfloor-setup\Run-ShopfloorSetup.ps1" "W:\Enrollment\Run-ShopfloorSetup.ps1"
 REM --- Always copy Shopfloor baseline scripts ---
 mkdir W:\Enrollment\shopfloor-setup 2>NUL