feat(i18n): convert 38 hardcoded static labels + safe blade wrap + 226 keys

- Convert all remaining static \$modelLabel/\$pluralModelLabel to getter
  methods with __() (AppointmentResource, WorkOrderResource, MasterResource,
  ServiceTemplateResource, LaborResource, and 33 others)
- Safe blade wrap v2 (37 files, 201 wraps): fixed the regex to not match
  `->`, `=>`, `!<` — previous aggressive pass broke @if directives
- Bulk-translate lowercase model-label keys (programări, fișe lucru,
  tehnicieni, șabloane servicii, norme-ore, etc.) — these were the RO
  strings appearing in page titles/breadcrumbs
- Add human RU/EN for mechanic-kpi (Mecanic/Lucrări/Norma ore/etc.)
  and calendar-board words

Tests 306 green. Blade compiles cleanly.

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

resources/views/filament/tenant/tracking-qr.blade.php

@@ -18,7 +18,7 @@
     </div>
 
     <div class="space-y-2">
-        <label class="block text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wide">Link</label>
+        <label class="block text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wide">{{ __('Link') }}</label>
         <div class="flex gap-2">
             <input
                 type="text"