Sub-type aware preinstall, USB drivers/PPKGs, Lab OpenText

- PreInstall runner reads pc-subtype.txt and matches PCTypes against
  both base type (Standard) and composite key (Standard-Machine).
- UDC scoped to Standard-Machine only. eDNC and MachineNumberACLs
  skip on Standard-Timeclock sub-type.
- Lab added to OpenText PCTypes.
- build-usb.sh copies enrollment/ (PPKGs) and drivers-staging/ (Dell
  driver packs) onto USB for self-contained deployment.
- Playbook deploys PPKGs and drivers from USB to PXE server shares.
- Gitignore enrollment/, drivers-staging/, *.ppkg (large binaries).

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

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

@@ -1,10 +1,21 @@
-# 01-eDNC.ps1 - Install eDNC and deploy custom eMxInfo.txt (Standard)
+# 01-eDNC.ps1 - Install eDNC and deploy custom eMxInfo.txt (Standard-Machine only)
 
 # --- Transcript ---
 $logDir = 'C:\Logs\SFLD'
 if (-not (Test-Path $logDir)) { try { New-Item -ItemType Directory -Path $logDir -Force | Out-Null } catch {} }
 try { Start-Transcript -Path (Join-Path $logDir '01-eDNC.log') -Append -Force | Out-Null } catch {}
 
+# --- Skip on Timeclock sub-type ---
+$subtypeFile = 'C:\Enrollment\pc-subtype.txt'
+if (Test-Path $subtypeFile) {
+    $subtype = (Get-Content $subtypeFile -First 1 -ErrorAction SilentlyContinue).Trim()
+    if ($subtype -eq 'Timeclock') {
+        Write-Host "=== eDNC Setup: skipped (Standard-Timeclock) ==="
+        try { Stop-Transcript | Out-Null } catch {}
+        return
+    }
+}
+
 Write-Host "=== eDNC Setup ==="
 
 function Get-SiteConfig {