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/pages/pipeline-board.blade.php

@@ -403,7 +403,7 @@
             <form class="pb-panel-body" wire:submit.prevent="createNewLead">
                 <div class="pb-form-field">
                     <label>{{ __('Nume') }} *</label>
-                    <input type="text" wire:model="newName" placeholder="Ion Popescu" autofocus>
+                    <input type="text" wire:model="newName" placeholder="{{ __('Ion Popescu') }}" autofocus>
                 </div>
                 <div class="pb-form-field">
                     <label>{{ __('Telefon') }} *</label>
@@ -411,7 +411,7 @@
                 </div>
                 <div class="pb-form-field">
                     <label>{{ __('Auto / model') }}</label>
-                    <input type="text" wire:model="newCar" placeholder="VW Passat 2018">
+                    <input type="text" wire:model="newCar" placeholder="{{ __('VW Passat 2018') }}">
                 </div>
                 <div class="pb-form-field">
                     <label>{{ __('Sursă') }}</label>