Renumber PXE LAN from 10.9.100.0/24 to 172.16.9.0/24

Single-site bay-stuck issue at WJ: GE Intune Report IP script filters
Get-NetIPAddress on StartsWith("10.") and posts everything matching
to the GE Tines webhook. Bays at WJ get the PXE LAN 10.9.100.x IP
captured and reported -> GE backend tags bays as on a non-corp 10.x
subnet -> dynamic group eligibility for SFLD policy never matches.
Other GE sites work because their PXE LANs aren't on 10.x at all.

Renumber PXE LAN to RFC1918 172.16.9.0/24 so the GE filter naturally
skips wired PXE addresses without any disable-NIC dance.

Server-side already in flight (netplan dual-bound, dnsmasq scope +
boot URL repointed, blancco preferences + grub.cfg + iPXE GetPxeScript
all sed'd to 172.16.9.1). This commit is the playbook / scripts /
docs side: 109 hits across 35 files sed'd in one shot.

After this lands + boot.wim is rebuilt + bays renumber off DHCP,
the 10.9.100.1 binding will be dropped from netplan as the final
cleanup step.

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

playbook/shopfloor-setup/Shopfloor/lib/Get-PCProfile.ps1

@@ -66,6 +66,15 @@ if (Test-Path -LiteralPath $subtypeFile) {
     $pcSubtype = (Get-Content -LiteralPath $subtypeFile -First 1 -ErrorAction SilentlyContinue).Trim()
 }
 
+# Display sub-type fallback: if pc-subtype.txt is absent (post-rename-reorg
+# default) but display-type.txt exists, use it as the subtype. Lets the
+# Display-Lobby / Display-Dashboard / gea-shopfloor-display-{lobby,dashboard}
+# profile keys resolve correctly for Display PCs.
+$displayTypeFile = 'C:\Enrollment\display-type.txt'
+if (-not $pcSubtype -and ($pcType -ieq 'gea-shopfloor-display' -or $pcType -ieq 'Display') -and (Test-Path -LiteralPath $displayTypeFile)) {
+    $pcSubtype = (Get-Content -LiteralPath $displayTypeFile -First 1 -ErrorAction SilentlyContinue).Trim()
+}
+
 # Build the profile key: "Standard-Machine", "CMM", "Display-Lobby", etc.
 $profileKey = if ($pcSubtype) { "$pcType-$pcSubtype" } else { $pcType }
 
@@ -82,6 +91,8 @@ $pcProfileAliasGroups = @(
     @('WaxAndTrace',        'gea-shopfloor-waxtrace'),
     @('Genspect',           'gea-shopfloor-genspect'),
     @('Display',            'gea-shopfloor-display'),
+    @('Display-Lobby',      'gea-shopfloor-display-Lobby',     'gea-shopfloor-display-lobby'),
+    @('Display-Dashboard',  'gea-shopfloor-display-Dashboard', 'gea-shopfloor-display-dashboard'),
     @('Heattreat',          'gea-shopfloor-heattreat')
 )