feat(labors): trilingual name — add name_en column + Labor::label() helper

- Migration: add nullable `labors.name_en` alongside existing name_ro/
  name_ru.
- Labor model: label(?locale) accessor returns name_{locale} with
  name_ro fallback.
- LaborResource form: expose 3rd 'Nume (EN)' field.
- Table + Select displays now go through label() so options show the
  locale-appropriate name:
    /app/labors table column,
    WorkOrderResource works Select ('[category] name (Nh)'),
    ServiceTemplate items Select,
    ServiceComposer WorkOrderWork snapshot on create.
- Snapshot name saved on wo_works.name at creation reflects the
  current locale; existing rows keep their stored snapshot untouched.

All 306 tests pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

app/Services/ServiceComposer.php

@@ -44,7 +44,7 @@ class ServiceComposer
             $work = WorkOrderWork::create([
                 'work_order_id' => $wo->id,
                 'labor_id' => $labor->id,
-                'name' => $labor->name_ro,
+                'name' => $labor->label(),
                 'hours' => $hours,
                 'price_per_hour' => $pricePerHour,
                 'status' => 'todo',