Add QR code display of Intune device ID to sync tool

Bundles QRCoder.dll (184KB, .NET 4.0) to render the Azure AD device
GUID as a scannable QR code in the console when sync_intune.bat runs.

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

playbook/shopfloor-setup/Shopfloor/sync_intune.bat

@@ -10,10 +10,35 @@ if %errorlevel% neq 0 (
 
 echo.
 echo ========================================
-echo   Intune Policy Sync
+echo   Intune Policy Sync - %COMPUTERNAME%
 echo ========================================
 echo.
 
+:: Show Intune Device ID and QR code
+powershell -ExecutionPolicy Bypass -Command ^
+    "$dsreg = dsregcmd /status 2>&1; "^
+    "$line = $dsreg | Select-String 'DeviceId'; "^
+    "if ($line) { "^
+    "    $deviceId = $line.ToString().Split(':')[1].Trim(); "^
+    "    Write-Host \"Intune Device ID: $deviceId\" -ForegroundColor Cyan; "^
+    "    Write-Host ''; "^
+    "    $dllPath = 'C:\Enrollment\shopfloor-setup\Shopfloor\QRCoder.dll'; "^
+    "    if (Test-Path $dllPath) { "^
+    "        Add-Type -Path $dllPath; "^
+    "        $gen = New-Object QRCoder.QRCodeGenerator; "^
+    "        $data = $gen.CreateQrCode($deviceId, [QRCoder.QRCodeGenerator+ECCLevel]::L); "^
+    "        $ascii = New-Object QRCoder.AsciiQRCode($data); "^
+    "        $qr = $ascii.GetGraphic(1, [char]0x2588 + [char]0x2588, '  '); "^
+    "        Write-Host $qr; "^
+    "    } else { "^
+    "        Write-Host 'QRCoder.dll not found - skipping QR code' -ForegroundColor Yellow; "^
+    "    } "^
+    "} else { "^
+    "    Write-Host 'Device not yet Azure AD joined.' -ForegroundColor Yellow; "^
+    "}"
+
+echo.
+
 :: Check current state
 reg query "HKLM\Software\GE\SFLD" >nul 2>&1
 if %errorlevel% equ 0 (