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/Central/Resources/SuperAdminResource.php

@@ -25,9 +25,19 @@ class SuperAdminResource extends Resource
         return __('nav.label.Utilizatori');
     }
 
-    protected static ?string $modelLabel = 'utilizator';
+    protected static ?string $modelLabel = null;
 
-    protected static ?string $pluralModelLabel = 'utilizatori';
+    public static function getModelLabel(): string
+    {
+        return __('utilizator');
+    }
+
+    protected static ?string $pluralModelLabel = null;
+
+    public static function getPluralModelLabel(): string
+    {
+        return __('utilizatori');
+    }
 
     protected static string|\UnitEnum|null $navigationGroup = null;