Run-ShopfloorSetup: fix Send-PxeStatus dot-source path

Run-ShopfloorSetup.ps1 is copied by startnet.cmd to W:\Enrollment\
(root of Enrollment, NOT inside shopfloor-setup/). So $PSScriptRoot is
W:\Enrollment\. The dot-source path was Join-Path $PSScriptRoot
'Shopfloor\lib\Send-PxeStatus.ps1' which resolves to
W:\Enrollment\Shopfloor\lib\Send-PxeStatus.ps1 - that path does not
exist.

The actual file lands at W:\Enrollment\shopfloor-setup\Shopfloor\lib\
Send-PxeStatus.ps1 (xcopied by startnet from the Shopfloor share dir
into the shopfloor-setup\ subdir). Test-Path returned false, dot-source
silently skipped, Send-PxeStatus was never defined, every Report-Stage
call no-op'd, no log file was written, no POSTs reached the dashboard.

Symptom: bay reaches Windows desktop + runs Run-ShopfloorSetup but
never appears on /imaging dashboard. C:\Logs\send-pxe-status.log does
not exist on the bay.

Fix: add the missing 'shopfloor-setup\' segment so the path resolves
to the actual file location.

09-Setup-*.ps1 use a different relative path ('..\Shopfloor\lib\...')
from inside the per-type dir and were unaffected. Monitor-IntuneProgress
sits in Shopfloor\lib already and uses a sibling lookup - also fine.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

playbook/shopfloor-setup/Run-ShopfloorSetup.ps1

@@ -29,7 +29,7 @@ Write-Host ""
 # Imaging-progress reporter. Posts coarse stage updates to the PXE webapp
 # at http://10.9.100.1:9009/imaging/status so the operator can watch
 # progress in a browser. Best-effort: failures never block imaging.
-$pxeStatusLib = Join-Path $PSScriptRoot 'Shopfloor\lib\Send-PxeStatus.ps1'
+$pxeStatusLib = Join-Path $PSScriptRoot 'shopfloor-setup\Shopfloor\lib\Send-PxeStatus.ps1'
 if (Test-Path $pxeStatusLib) {
     try { . $pxeStatusLib } catch { Write-Warning "Send-PxeStatus load failed: $_" }
 }