ADR-015: stop shipping one site's values, and make the rule a gate

The scanner has been reporting the same count for weeks, which is what a rule
that only prints becomes. It now FAILS the build, and it looks where the leaks
actually were: PowerShell, the installer, the seeds, generated JSON, the
frontend - case-insensitively, across plugins, shopdb, scripts, deploy, tools.
A line that is deliberate declares itself with an ADR-015-OK marker and a
reason, so the claim is visible in review instead of tolerated in silence.

What it found, fixed here:

- The shadow client wrote one site's ShopDB URL into HKLM whenever the registry
  disagreed. At the site it was written for that reads as healing drift;
  anywhere else it overwrites the site's own address on every enforce cycle,
  and the site cannot win because the cycle repeats. The bay's value now wins,
  an explicit -BaseUrl seeds it, and with neither there is nothing honest to
  write, so it says so and skips.
- The kiosk dispatcher fell back to one plant's host when HKLM was unset, so a
  kiosk elsewhere quietly opened a server it has no business reaching. The
  fallback is now this site's site_base_url, baked in at seed time, and the
  dispatcher refuses rather than guessing when neither is set. Its legacy
  shortcut matcher derives the host from that URL instead of naming one.
- The OpenAPI generator hardcoded a production hostname into every spec it
  generated, which then published to a public wiki. The relative mount is the
  only server it can honestly name; a site passes its own by environment.
- Placeholders and examples in the UI and the client help offered real internal
  subnets and a real production URL. They now use documentation ranges.

Both publication gates - the export scrub and the docs publishability test -
carry the site patterns, which neither did. One plant's hostname, FQDN and
internal networks are out of the documentation and the generated specs.

Comments naming the reference site are reworded rather than deleted: the
reasoning is worth keeping, the plant name is not what makes it true.

plugins/geenforce/seed_display_scope.py

@@ -84,6 +84,20 @@ def _relaunch_window_targets_comment():
     return pairs
 
 
+def _site_base_url():
+    """This site's public base URL from settings, or '' when it is unset.
+
+    Wrapped because the script builders are also called with no application
+    context (the seed tests build the text and check it compiles), and a
+    settings lookup there raises rather than returning a default.
+    """
+    try:
+        from shopdb.api import Setting
+        return (Setting.get('site_base_url', '') or '').strip().rstrip('/')
+    except Exception:
+        return ''
+
+
 def build_dispatcher_script():
     """Return the inline dispatcher PowerShell as text.
 
@@ -96,6 +110,11 @@ def build_dispatcher_script():
         table_lines.append(f"    '{display_type}' = '{route}'")
     table_body = ';\n'.join(table_lines)
 
+    # Baked in at seed time because the emitted script runs on a kiosk with no
+    # route back to the database. Blank when the site has not set it, and the
+    # dispatcher refuses rather than guessing - see the comment on $KioskBaseUrl.
+    kiosk_base_url = _site_base_url()
+
     return f"""# Invoke-DisplayKioskDispatch.ps1 -- gea-shopfloor-display dispatcher.
 #
 # Reads C:\\Enrollment\\display-type.txt and ensures an all-users Startup
@@ -122,12 +141,19 @@ $DisplayTypeTargets = @{{
 
 # Base URL the kiosk browser opens; the route from the table is appended. Read
 # from HKLM (the value the GE-Enforce client is configured with) so it stays
-# site-agnostic; falls back to the West Jefferson shopdb host.
-$KioskBaseUrl = 'https://tsgwp00525.wjs.geaerospace.net/shopdb'
+# site-agnostic. The fallback is THIS site's site_base_url setting, baked in
+# when the scope was seeded - it used to be one particular plant's host, which
+# meant a kiosk anywhere else with no registry value quietly opened a server it
+# has no business reaching.
+$KioskBaseUrl = '{kiosk_base_url}'
 try {{
     $shopdbConfig = Get-ItemProperty -Path 'HKLM:\\SOFTWARE\\GE\\ShopDB' -Name BaseUrl -ErrorAction Stop
     if ($shopdbConfig.BaseUrl) {{ $KioskBaseUrl = ([string]$shopdbConfig.BaseUrl).TrimEnd('/') }}
 }} catch {{}}
+if (-not $KioskBaseUrl) {{
+    Write-Host 'no ShopDB base URL: set HKLM:\\SOFTWARE\\GE\\ShopDB BaseUrl, or set site_base_url in Settings and re-publish the display scope.'
+    exit 0
+}}
 
 # PREFERRED: resolve this display's role from the server by its FQDN, so a change
 # in Settings > Dashboard Defaults takes effect with no reimage / local edit. The
@@ -136,7 +162,7 @@ try {{
 $path = $null
 $serial = ''
 try {{ $serial = ([string](Get-CimInstance -ClassName Win32_BIOS -ErrorAction Stop).SerialNumber).Trim() }} catch {{}}
-$fqdnDomain = 'device.geaerospace.net'
+$fqdnDomain = 'device.geaerospace.net'  # ADR-015-OK: GE Aerospace-wide domain, and only the DEFAULT of a documented setting every site can override.
 try {{
     $ddom = Get-ItemProperty -Path 'HKLM:\\SOFTWARE\\GE\\ShopDB' -Name DisplayFqdnDomain -ErrorAction Stop
     if ($ddom.DisplayFqdnDomain) {{ $fqdnDomain = ([string]$ddom.DisplayFqdnDomain).Trim().Trim('.') }}
@@ -200,8 +226,15 @@ Get-ChildItem -LiteralPath $startup -Filter '*.lnk' -ErrorAction SilentlyContinu
             # -kiosk matches both '-kiosk' and '--kiosk'. Also catch any browser
             # shortcut pointing at a shopdb kiosk URL (incl. the dead
             # shopfloor-dashboard route + --app variants).
+            # The host comes from $KioskBaseUrl, not from a literal: this used
+            # to name one site's server, so at any other site a legacy shortcut
+            # pointing at that site's own ShopDB was not recognised and never
+            # cleaned up.
+            $kioskHost = ''
+            try {{ $kioskHost = ([uri]$KioskBaseUrl).Host }} catch {{}}
             $kioskArgs = ($existing.Arguments -match '(?i)-kiosk') -or `
-                         ($existing.Arguments -match '(?i)tsgwp00525|/shopdb/|shopfloor-dashboard')
+                         ($kioskHost -and $existing.Arguments -like "*$kioskHost*") -or `
+                         ($existing.Arguments -match '(?i)/shopdb/|shopfloor-dashboard')
             if ($isBrowser -and $kioskArgs) {{ $drop = $true }}
         }} catch {{}}
     }}