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/Filament/Tenant/Resources/WorkOrderResource/RelationManagers/WorksRelationManager.php

@@ -31,13 +31,13 @@ class WorksRelationManager extends RelationManager
                 ->label(__('Catalog manoperă'))
                 ->options(fn () => Labor::where('is_active', true)
                     ->get()
-                    ->mapWithKeys(fn ($l) => [$l->id => '[' . __($l->category) . '] ' . $l->name_ro . ' (' . $l->hours . __('h') . ')'])
+                    ->mapWithKeys(fn ($l) => [$l->id => '[' . __($l->category) . '] ' . $l->label() . ' (' . $l->hours . __('h') . ')'])
                     ->toArray())
                 ->searchable()
                 ->live()
                 ->afterStateUpdated(function ($state, Set $set) {
                     if ($state && $labor = Labor::find($state)) {
-                        $set('name', $labor->name_ro);
+                        $set('name', $labor->label());
                         $set('hours', $labor->hours);
                         $set('price_per_hour', $labor->hours > 0 ? round($labor->price / max((float) $labor->hours, 1), 2) : 0);
                     }