Phase 3+4 rename reorg: repo dir renames + startnet.cmd menu

Pairs with Phase 1+2 from earlier (alias maps in Install-FromManifest,
GE-Enforce, Get-PCProfile, verify-state). See project-shopfloor-rename-reorg
memory for the plan.

Phase 3 (repo + paths):
- git mv per-PC-type dirs to gea-shopfloor-* names:
    Standard      -> gea-shopfloor-collections
    CMM           -> gea-shopfloor-cmm
    Keyence       -> gea-shopfloor-keyence
    Genspect      -> gea-shopfloor-genspect
    WaxAndTrace   -> gea-shopfloor-waxtrace
    Display       -> gea-shopfloor-display
    Lab           -> gea-shopfloor-common (folded; Timeclock+Lab merge)
- New gea-shopfloor-nocollections/ (clone of collections sans UDC scripts).
- New gea-shopfloor-heattreat/ (placeholder, README only).
- Move Standard/ntlars-backups/ -> _ntlars-backups/ (per-MN, not per-type).
- Run-ShopfloorSetup.ps1: Resolve-PCTypeDir helper walks alias group when
  the on-disk dir for the current pcType is missing. Set-MachineNumber
  helper-copy gated on collections|nocollections|legacy Standard-Machine.
- Update-MachineNumber.ps1: pcProfiles lookups try gea-shopfloor-collections
  first, fall back to legacy Standard-Machine. PowerShell 5.1 compatible
  (no null-coalesce).

Phase 4 (startnet.cmd menu):
- Choice 3 "GEA Shopfloor" now drills into a 9-item sub-menu instead of
  going straight to enrollment. Sub-cats:
    1. Machine with Collections        -> gea-shopfloor-collections
    2. Machine without Collections     -> gea-shopfloor-nocollections
    3. Common (Timeclock, Lab)         -> gea-shopfloor-common
    4. Keyence                         -> gea-shopfloor-keyence
    5. CMM                             -> gea-shopfloor-cmm
    6. Genspect                        -> gea-shopfloor-genspect
    7. Heattreat                       -> gea-shopfloor-heattreat
    8. Wax and Trace                   -> gea-shopfloor-waxtrace
    9. Display                         -> gea-shopfloor-display
- Office menu (existing 6-option) follows for every sub-cat.
- Machine number prompt only for collections + nocollections.
- pc-subtype.txt + display-type.txt no longer written. PCTYPE is a
  single full string (gea-shopfloor-*); subtype-aware code paths fall
  back to empty and resolve via the alias map.
- CMM bootstrap stage gate switched from "%PCTYPE%"=="CMM" to
  "%PCTYPE%"=="gea-shopfloor-cmm".

Test harness:
- B-enforce/run.sh PCSUBTYPE default changed from "Machine" to "" so
  single-arg invocation matches the new single-string scheme. Two-arg
  legacy form ("Standard Machine") still works via aliasing.
- B-enforce/tamper.ps1 alias-aware Test-MatrixEntryMatches mirroring
  verify-state.ps1.

Smoke-tested on win11 VM as SYSTEM via qga: B-enforce harness 5-phase
cycle (stage / baseline / tamper / heal / idempotent) passes 10/10
with PCType=gea-shopfloor-collections AND with legacy "Standard Machine"
two-arg form.

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

playbook/shopfloor-setup/gea-shopfloor-nocollections/Set-MachineNumber.ps1

@@ -0,0 +1,87 @@
+# Set-MachineNumber.ps1 - Update UDC + eDNC machine number on a Standard shopfloor PC
+#
+# Purpose:
+#   Both UDC and eDNC use the same per-machine identifier ("Workstation Number" /
+#   "Machine Number"). On Standard PCs imaged via PXE preinstall, both are installed
+#   with a placeholder. When the PC is brought to its physical machine and assigned
+#   a real number, this helper updates both apps in one step.
+#
+# Persistence locations updated:
+#   1. UDC:  C:\ProgramData\UDC\udc_settings.json  (GeneralSettings.MachineNumber)
+#   2. eDNC: HKLM:\SOFTWARE\WOW6432Node\GE Aircraft Engines\DNC\General\MachineNo
+#
+# After updating, kills any running UDC.exe and relaunches it with the new args
+# so the in-memory state matches the persisted value.
+#
+# Run as SupportUser (admin). Requires write access to ProgramData and HKLM.
+
+Add-Type -AssemblyName Microsoft.VisualBasic
+Add-Type -AssemblyName System.Windows.Forms
+
+. "$PSScriptRoot\..\Shopfloor\lib\Get-PCProfile.ps1"
+. "$PSScriptRoot\..\Shopfloor\lib\Update-MachineNumber.ps1"
+
+$site = if ($siteConfig) { $siteConfig.siteName } else { 'West Jefferson' }
+
+# --- Read current values for display ---
+$currentMN   = Get-CurrentMachineNumber
+$currentUdc  = $currentMN.Udc
+$currentEdnc = $currentMN.Ednc
+
+# --- Show prompt with current state ---
+$promptLines = @()
+$promptLines += "Current UDC machine number:  $(if ($currentUdc)  { $currentUdc }  else { '(not set)' })"
+$promptLines += "Current eDNC machine number: $(if ($currentEdnc) { $currentEdnc } else { '(not set)' })"
+$promptLines += ""
+$promptLines += "Enter the new Machine Number for this PC:"
+$prompt = $promptLines -join "`n"
+
+$new = [Microsoft.VisualBasic.Interaction]::InputBox($prompt, "Set Machine Number", "")
+
+if ([string]::IsNullOrWhiteSpace($new)) {
+    Write-Host "Cancelled."
+    exit 0
+}
+
+$new = $new.Trim()
+
+# --- Validate: digits only (loosen if you need alphanumerics) ---
+if ($new -notmatch '^\d+$') {
+    [System.Windows.Forms.MessageBox]::Show(
+        "Machine number must be digits only.`n`nYou entered: '$new'",
+        "Invalid Machine Number",
+        [System.Windows.Forms.MessageBoxButtons]::OK,
+        [System.Windows.Forms.MessageBoxIcon]::Error
+    ) | Out-Null
+    exit 1
+}
+
+$mnResult = Update-MachineNumber -NewNumber $new -Site $site
+
+$results = @()
+if ($mnResult.UdcUpdated) {
+    Write-Host "UDC: $currentUdc -> $new"
+    $results += "UDC updated to $new"
+} elseif (-not (Test-Path 'C:\ProgramData\UDC\udc_settings.json')) {
+    $results += "UDC: settings file missing (run UDC.exe once first)"
+}
+if ($mnResult.EdncUpdated) {
+    Write-Host "eDNC: $currentEdnc -> $new"
+    $results += "eDNC updated to $new"
+} elseif (-not (Test-Path 'HKLM:\SOFTWARE\WOW6432Node\GE Aircraft Engines\DNC\General')) {
+    $results += "eDNC: registry key missing (eDNC not installed?)"
+}
+foreach ($err in $mnResult.Errors) {
+    Write-Warning $err
+    $results += $err
+}
+if ($mnResult.UdcUpdated) { Write-Host "UDC.exe relaunched." }
+
+# --- Show summary ---
+$summary = ($results -join "`n") + "`n`nTo apply eDNC changes, restart any running DncMain.exe."
+[System.Windows.Forms.MessageBox]::Show(
+    $summary,
+    "Set Machine Number - Done",
+    [System.Windows.Forms.MessageBoxButtons]::OK,
+    [System.Windows.Forms.MessageBoxIcon]::Information
+) | Out-Null