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/preinstall/opentext/Setup-OpenText.ps1

@@ -41,6 +41,18 @@ if (-not $SourceDir) {
     $SourceDir = $PSScriptRoot
 }
 
+# --- Inline site-config reader (this script runs from C:\PreInstall\installers\opentext\,
+# NOT from C:\Enrollment\shopfloor-setup\, so it can't dot-source Get-PCProfile.ps1) ---
+function Get-SiteConfig {
+    $configPath = 'C:\Enrollment\site-config.json'
+    if (-not (Test-Path $configPath)) { return $null }
+    try {
+        return Get-Content $configPath -Raw | ConvertFrom-Json
+    } catch {
+        return $null
+    }
+}
+
 # --- Logging (set up FIRST so any startup error - missing version.txt, broken
 # bundled file, etc. - lands in the log file instead of disappearing into the
 # runner's stdout void) ---
@@ -201,6 +213,25 @@ if ($mspExit -ne 0 -and $mspExit -ne 3010) {
 Write-SetupLog ""
 Write-SetupLog "Step 3: Deploying profiles/keymaps/menus/macros..."
 
+# --- Resolve exclude lists from site-config.json (falls back to West Jefferson defaults) ---
+$siteConfig = Get-SiteConfig
+$profileExcludes = if ($siteConfig -and $siteConfig.opentext -and $siteConfig.opentext.excludeProfiles) {
+    @($siteConfig.opentext.excludeProfiles)
+} else {
+    @('WJ_Office.hep', 'IBM_qks.hep', 'mmcs.hep')  # West Jefferson defaults
+}
+$shortcutExcludes = if ($siteConfig -and $siteConfig.opentext -and $siteConfig.opentext.excludeShortcuts) {
+    @($siteConfig.opentext.excludeShortcuts)
+} else {
+    @('WJ_Office.lnk', 'IBM_qks.lnk', 'mmcs.lnk')
+}
+if ($siteConfig) {
+    Write-SetupLog "Site config loaded - profile excludes: $($profileExcludes -join ', ')"
+    Write-SetupLog "Site config loaded - shortcut excludes: $($shortcutExcludes -join ', ')"
+} else {
+    Write-SetupLog "No site-config.json found - using West Jefferson defaults for excludes"
+}
+
 # Map of source subdir -> destination subdir relative to the Hummingbird root.
 # Optional Exclude list drops specific filenames from both the source-to-dest
 # copy AND from the destination if they were left over from a prior install.
@@ -208,15 +239,7 @@ $contentMap = @(
     @{
         Src = 'Profile'
         Dst = 'Profile'
-        # West Jefferson site-specific: these three .hep sessions aren't used
-        # on shopfloor PCs and just clutter the HostExplorer session picker.
-        # Leaving the .hep files in the bundled source for rollback, just
-        # skipping the deploy step.
-        Exclude = @(
-            'WJ_Office.hep',
-            'IBM_qks.hep',
-            'mmcs.hep'
-        )
+        Exclude = $profileExcludes
     }
     @{ Src = 'Accessories\EB';       Dst = 'Accessories\EB' }
     @{ Src = 'HostExplorer\Keymap';  Dst = 'HostExplorer\Keymap' }
@@ -280,22 +303,15 @@ foreach ($u in $userDirs) {
 }
 
 # --- Step 4: Public Desktop shortcuts ---
-# Same exclusion list as the Profile step: these three sessions aren't
-# used on shopfloor PCs, so we skip deploying their .lnk files AND
-# remove any that a prior install left behind.
+# Uses $shortcutExcludes (resolved from site-config.json above) to skip
+# deploying unwanted .lnk files AND remove any a prior install left behind.
 Write-SetupLog ""
 Write-SetupLog "Step 4: Deploying public desktop shortcuts..."
 $shortcutSrc = Join-Path $SourceDir 'W10shortcuts'
 $publicDesktop = 'C:\Users\Public\Desktop'
 
-$excludeShortcuts = @(
-    'WJ_Office.lnk',
-    'IBM_qks.lnk',
-    'mmcs.lnk'
-)
-
 # Clean up stale copies from prior installs first
-foreach ($name in $excludeShortcuts) {
+foreach ($name in $shortcutExcludes) {
     $stale = Join-Path $publicDesktop $name
     if (Test-Path -LiteralPath $stale) {
         try {
@@ -310,7 +326,7 @@ foreach ($name in $excludeShortcuts) {
 if (Test-Path $shortcutSrc) {
     $lnkFiles = Get-ChildItem -Path $shortcutSrc -Filter '*.lnk' -File -ErrorAction SilentlyContinue
     foreach ($l in $lnkFiles) {
-        if ($excludeShortcuts -contains $l.Name) {
+        if ($shortcutExcludes -contains $l.Name) {
             Write-SetupLog "  skip (excluded): $($l.Name)"
             continue
         }