Stage 4 — Labor Catalog: fixed price + default parts + service templates

Schema:
- labors.pricing_mode (hourly/fixed) + fixed_price
- labor_parts (default parts auto-added with a labor)
- service_templates + service_template_items (labor/part bundles)

ServiceComposer:
- addLabor(wo, labor, withParts) — hourly (hours×rate) or fixed (fixed_price),
  then auto-adds the labor's default parts
- addPart(wo, part, qty) — catalog price snapshot
- applyTemplate(wo, template) — adds all labor+part lines, recalcs total
- hourlyRate from settings.labor_rate

Filament:
- LaborResource: pricing_mode (live) toggles hours/fixed_price fields,
  DefaultPartsRelationManager
- ServiceTemplateResource (Service group) with ItemsRelationManager
- WorkOrder edit "Aplică șablon" action → applyTemplate
- WorksRelationManager CreateAction auto-adds labor default parts

Tests (6 new):
- hourly rate×hours; fixed uses fixed_price; default parts auto-added;
  withParts=false skips; applyTemplate adds lines + recalcs total;
  templates tenant-isolated

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

app/Filament/Tenant/Resources/ServiceTemplateResource/Pages/CreateServiceTemplate.php

@@ -0,0 +1,11 @@
+<?php
+
+namespace App\Filament\Tenant\Resources\ServiceTemplateResource\Pages;
+
+use App\Filament\Tenant\Resources\ServiceTemplateResource;
+use Filament\Resources\Pages\CreateRecord;
+
+class CreateServiceTemplate extends CreateRecord
+{
+    protected static string $resource = ServiceTemplateResource::class;
+}

app/Filament/Tenant/Resources/ServiceTemplateResource/Pages/EditServiceTemplate.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace App\Filament\Tenant\Resources\ServiceTemplateResource\Pages;
+
+use App\Filament\Tenant\Resources\ServiceTemplateResource;
+use Filament\Actions;
+use Filament\Resources\Pages\EditRecord;
+
+class EditServiceTemplate extends EditRecord
+{
+    protected static string $resource = ServiceTemplateResource::class;
+
+    protected function getHeaderActions(): array
+    {
+        return [Actions\DeleteAction::make()];
+    }
+}

app/Filament/Tenant/Resources/ServiceTemplateResource/Pages/ListServiceTemplates.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace App\Filament\Tenant\Resources\ServiceTemplateResource\Pages;
+
+use App\Filament\Tenant\Resources\ServiceTemplateResource;
+use Filament\Actions;
+use Filament\Resources\Pages\ListRecords;
+
+class ListServiceTemplates extends ListRecords
+{
+    protected static string $resource = ServiceTemplateResource::class;
+
+    protected function getHeaderActions(): array
+    {
+        return [Actions\CreateAction::make()];
+    }
+}