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/pdf/appointments.blade.php

@@ -29,12 +29,12 @@
     <table>
         <thead>
             <tr>
-                <th style="width:60px;">Ora</th>
-                <th>Subiect</th>
+                <th style="width:60px;">{{ __('Ora') }}</th>
+                <th>{{ __('Subiect') }}</th>
                 <th>{{ __('Client / Auto') }}</th>
-                <th>Pod</th>
-                <th>Maistru</th>
-                <th style="width:60px;">Status</th>
+                <th>{{ __('Pod') }}</th>
+                <th>{{ __('Maistru') }}</th>
+                <th style="width:60px;">{{ __('Status') }}</th>
             </tr>
         </thead>
         <tbody>
@@ -60,6 +60,6 @@
     <div class="empty">{{ __('Nicio programare în această perioadă.') }}</div>
 @endforelse
 
-<div class="footer">AutoCRM PSauto · psauto.service.mir.md</div>
+<div class="footer">{{ __('AutoCRM PSauto · psauto.service.mir.md') }}</div>
 </body>
 </html>