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>

app/Filament/Tenant/Resources/DealResource.php

@@ -37,9 +37,19 @@ class DealResource extends Resource
         return false;  // PipelineBoard page is the canonical entry; this resource keeps CRUD routes for edit/create.
     }
 
-    protected static ?string $modelLabel = 'deal';
+    protected static ?string $modelLabel = null;
 
-    protected static ?string $pluralModelLabel = 'deal-uri';
+    public static function getModelLabel(): string
+    {
+        return __('deal');
+    }
+
+    protected static ?string $pluralModelLabel = null;
+
+    public static function getPluralModelLabel(): string
+    {
+        return __('deal-uri');
+    }
 
     protected static ?int $navigationSort = 6;