shopfloor: instrument 09-Setup-CMM, Common, Heattreat with Send-PxeStatus

Wires the imaging-progress helper into the three PC-type setup scripts
that were either clean (CMM) or untracked (Common, Heattreat). Each
gains two calls per the pattern committed for Keyence in 9122b28:

  * idx 5/8 - "09-Setup-<Type>: starting" right after the session start banner
  * idx 6/8 - "09-Setup-<Type>: complete" just before the completion banner

Display, Genspect, and WaxAndTrace also got the same two-line additions
locally and on the live server, but those files have pre-existing WIP
edits intermixed so they aren't staged here. They'll travel along
when the operator commits their unrelated shopfloor work.

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

playbook/shopfloor-setup/gea-shopfloor-cmm/09-Setup-CMM.ps1

@@ -52,6 +52,12 @@ Write-CMMLog "=== CMM Setup (imaging-time) session start (PID $PID) ==="
 Write-CMMLog "Running as: $([System.Security.Principal.WindowsIdentity]::GetCurrent().Name)"
 Write-CMMLog "================================================================"
 
+# Status push to PXE webapp - best-effort, never blocks imaging.
+$pxeStatusLib = Join-Path $PSScriptRoot '..\Shopfloor\lib\Send-PxeStatus.ps1'
+if (Test-Path $pxeStatusLib) {
+    try { . $pxeStatusLib; Send-PxeStatus -Stage '09-Setup-CMM: starting' -StageIndex 5 -StageTotal 8 } catch { }
+}
+
 # Diagnostic dump - knowing WHY the script took a branch is half the battle.
 Write-CMMLog "Script root: $PSScriptRoot"
 foreach ($file in @('pc-type.txt','pc-subtype.txt','machine-number.txt')) {
@@ -172,5 +178,8 @@ if (Test-Path $stagingRoot) {
     }
 }
 
+if (Get-Command Send-PxeStatus -ErrorAction SilentlyContinue) {
+    Send-PxeStatus -Stage '09-Setup-CMM: complete' -StageIndex 6 -StageTotal 8
+}
 Write-CMMLog "=== CMM Setup Complete ==="
 try { Stop-Transcript | Out-Null } catch {}