Rename the equipment domain to machines; retype the models catalog (ADR-011)

The equipment plugin is now the machines plugin, ending the UI-vs-code
vocabulary split while the contract is pre-1.0 and nothing external
depends on the old names.

- plugins/equipment -> plugins/machines: manifest, class, /api/machines,
  machines.* permissions, registry key (with an auto-migrating load shim
  for existing installs).
- Tables: equipment -> machines (equipmentid -> machineid) and
  equipmenttypes -> machinetypes, renamed in the plugin's own migration
  chain (machines0002rename), idempotent for both upgrading and fresh
  installs.
- The legacy core machinetypes lookup actually types the vendor MODELS
  catalog, so it is renamed losslessly to modeltypes
  (models.modeltypeid, /api/modeltypes, Model Types settings page)
  rather than collapsed, freeing the machinetypes name. Core migration
  7d17_machines_rename also flips data in place: assettypes row
  equipment -> machine, auditlog entitytype, identifier_/search_
  settings keys, permission rows, and renames alembic_version_equipment.
- Frontend: machinesApi/modeltypesApi, item.machine response shape,
  assettype value compares 'equipment' -> 'machine' (map, search,
  custom fields, relationships), routes machines.js with plugin gating
  retagged, /print/machine-badge, Machine Types (subtypes) and Model
  Types (catalog) settings pages, machines-by-type report id.
- Docs swept; ADRs left as history per the authoring rule.

Upgrade: flask db upgrade then flask plugin upgrade-all.

Verified: dev DB flipped live (262 machines, 35 modeltypes, 95 models
retyped, zero equipment tables remain); fresh scratch-MySQL install
produces the new names; 341 tests green; naming/style green; frontend
builds; live E2E on machines list/detail, PC relationships, map,
reports, and both settings pages.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

shopdb/core/api/settings.py

@@ -53,7 +53,7 @@ IDENTIFIER_LABELS = {
     'maintenancereference': 'Maintenance Reference',
     'fqdn': 'FQDN / hostname',
 }
-IDENTIFIER_ASSETTYPES = ['equipment', 'computer', 'printer', 'network_device']
+IDENTIFIER_ASSETTYPES = ['machine', 'computer', 'printer', 'network_device']
 
 # Global-search result types that can be toggled on/off independently of whether
 # the owning plugin is enabled. Keys match the `type` field on search results;
@@ -63,7 +63,7 @@ SEARCH_DOMAINS = {
     'application': 'Applications',
     'knowledgebase': 'Knowledge Base',
     'employee': 'Employees',
-    'equipment': 'Equipment',
+    'machine': 'Machines',
     'computer': 'PCs',
     'printer': 'Printers',
     'network_device': 'Network Devices',
@@ -450,7 +450,7 @@ def build_default_settings():
             'value': '/ge-aerospace-logo.svg',
             'valuetype': 'string',
             'category': 'branding',
-            'description': 'Logo shown on the equipment badge print page'
+            'description': 'Logo shown on the machine badge print page'
         },
         {
             'key': 'site_favicon',