Extract site-specific values to site-config.json

New site-config.json file at C:\Enrollment\ (staged by startnet.cmd from
the enrollment share) contains all West Jefferson-specific values that were
previously hardcoded across 7 scripts. To deploy at a different GE site,
clone site-config.json and change the values - scripts need zero changes.

Config schema (v1.0):
  siteName / siteNameCompact  - UDC/eDNC site args
  urls{}                      - Edge startup tab fallback URLs
  edgeStartupTabs[]           - ordered tab list with .url file basenames
  opentext{}                  - excluded .hep profiles and .lnk shortcuts
  startupItems[]              - Configure-PC toggle list (exe/existing/url)
  taskbarPins[]               - 07-TaskbarLayout pin order with lnk paths
  desktopApps[]               - 06-OrganizeDesktop Phase 2 app list

Every script uses the same inline Get-SiteConfig helper that reads the
JSON and returns $null if missing/corrupt. All consumers fall back to the
current hardcoded West Jefferson defaults when $siteConfig is null, so
PXE servers without a site-config.json continue working identically.

Scripts updated:
  06-OrganizeDesktop.ps1   - desktopApps array from config
  07-TaskbarLayout.ps1     - pinSpec array from config
  08-EdgeDefaultBrowser.ps1 - startup tab loop from config
  Configure-PC.ps1         - startup items + site name from config
  Check-MachineNumber.ps1  - site name from config
  Set-MachineNumber.ps1    - site name from config
  01-eDNC.ps1              - siteName + siteNameCompact from config
  startnet.cmd             - copies site-config.json from enrollment share

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

playbook/shopfloor-setup/Shopfloor/07-TaskbarLayout.ps1

@@ -30,6 +30,21 @@ if (-not $isAdmin) {
     exit 1
 }
 
+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
+
 $publicDesktop      = 'C:\Users\Public\Desktop'
 $shopfloorToolsDir  = Join-Path $publicDesktop 'Shopfloor Tools'
 $defaultUserShell   = 'C:\Users\Default\AppData\Local\Microsoft\Windows\Shell'
@@ -42,40 +57,48 @@ $layoutXmlPath      = Join-Path $defaultUserShell 'LayoutModification.xml'
 # it; all other entries reference C:\Users\Public\Desktop\Shopfloor Tools\
 # which 06-OrganizeDesktop.ps1 populates.
 # ============================================================================
-$pinSpec = @(
-    @{
-        Name = 'Microsoft Edge'
-        Path = '%ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs\Microsoft Edge.lnk'
-        # Resolved literal path used to check existence (can't Test-Path an
-        # unexpanded env var reliably on older PS versions)
-        Literal = 'C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Microsoft Edge.lnk'
-    }
-    @{
-        Name = 'WJ Shopfloor'
-        Path = '%PUBLIC%\Desktop\Shopfloor Tools\WJ Shopfloor.lnk'
-        Literal = (Join-Path $shopfloorToolsDir 'WJ Shopfloor.lnk')
-    }
-    @{
-        Name = 'UDC'
-        Path = '%PUBLIC%\Desktop\Shopfloor Tools\UDC.lnk'
-        Literal = (Join-Path $shopfloorToolsDir 'UDC.lnk')
-    }
-    @{
-        Name = 'eDNC'
-        Path = '%PUBLIC%\Desktop\Shopfloor Tools\eDNC.lnk'
-        Literal = (Join-Path $shopfloorToolsDir 'eDNC.lnk')
-    }
-    @{
-        Name = 'NTLARS'
-        Path = '%PUBLIC%\Desktop\Shopfloor Tools\NTLARS.lnk'
-        Literal = (Join-Path $shopfloorToolsDir 'NTLARS.lnk')
-    }
-    @{
-        Name = 'Defect_Tracker'
-        Path = '%PUBLIC%\Desktop\Shopfloor Tools\Defect_Tracker.lnk'
-        Literal = (Join-Path $shopfloorToolsDir 'Defect_Tracker.lnk')
-    }
-)
+if ($siteConfig -and $siteConfig.taskbarPins) {
+    $pinSpec = @($siteConfig.taskbarPins | ForEach-Object {
+        @{
+            Name    = $_.name
+            Path    = $_.lnkPath
+            Literal = [Environment]::ExpandEnvironmentVariables($_.lnkPath)
+        }
+    })
+} else {
+    $pinSpec = @(
+        @{
+            Name = 'Microsoft Edge'
+            Path = '%ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs\Microsoft Edge.lnk'
+            Literal = 'C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Microsoft Edge.lnk'
+        }
+        @{
+            Name = 'WJ Shopfloor'
+            Path = '%PUBLIC%\Desktop\Shopfloor Tools\WJ Shopfloor.lnk'
+            Literal = (Join-Path $shopfloorToolsDir 'WJ Shopfloor.lnk')
+        }
+        @{
+            Name = 'UDC'
+            Path = '%PUBLIC%\Desktop\Shopfloor Tools\UDC.lnk'
+            Literal = (Join-Path $shopfloorToolsDir 'UDC.lnk')
+        }
+        @{
+            Name = 'eDNC'
+            Path = '%PUBLIC%\Desktop\Shopfloor Tools\eDNC.lnk'
+            Literal = (Join-Path $shopfloorToolsDir 'eDNC.lnk')
+        }
+        @{
+            Name = 'NTLARS'
+            Path = '%PUBLIC%\Desktop\Shopfloor Tools\NTLARS.lnk'
+            Literal = (Join-Path $shopfloorToolsDir 'NTLARS.lnk')
+        }
+        @{
+            Name = 'Defect_Tracker'
+            Path = '%PUBLIC%\Desktop\Shopfloor Tools\Defect_Tracker.lnk'
+            Literal = (Join-Path $shopfloorToolsDir 'Defect_Tracker.lnk')
+        }
+    )
+}
 
 # ============================================================================
 # Build the pin list - skip any whose .lnk is missing