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/shop/vin.blade.php

@@ -7,7 +7,7 @@
     <p class="muted" style="margin-bottom:16px;">{{ __('portal.shop.vin_intro') }}</p>
 
     <form method="GET" action="/shop/vin" style="display:flex;gap:8px;flex-wrap:wrap;">
-        <input type="text" name="vin" value="{{ $vin }}" maxlength="17" placeholder="ex: WVWZZZ1JZXW000001"
+        <input type="text" name="vin" value="{{ $vin }}" maxlength="17" placeholder="{{ __('ex: WVWZZZ1JZXW000001') }}"
                style="flex:1;min-width:240px;padding:10px 12px;border:1px solid #d1d5db;border-radius:8px;font-family:monospace;text-transform:uppercase;">
         <button class="btn" type="submit">{{ __('portal.shop.vin_decode') }}</button>
     </form>