feat(sale): implement event scope for sales, totals, and modifications; add tests for event-based access

app/Domains/Commerce/Purchase/Services/PurchaseRefundSummaryService.php

@@ -8,12 +8,14 @@ use Illuminate\Database\Eloquent\Builder;
 
 class PurchaseRefundSummaryService
 {
-    public function totalForTenant(Tenant $tenant): string
+    public function totalForTenant(Tenant $tenant, ?int $eventId = null): string
     {
         $total = TicketRefund::query()
             ->whereHas(
                 'purchaseItem.purchase',
-                fn (Builder $query): Builder => $query->where('tenant_codigo', $tenant->codigo)
+                fn (Builder $query): Builder => $query
+                    ->where('tenant_codigo', $tenant->codigo)
+                    ->when($eventId !== null, fn (Builder $query): Builder => $query->where('event_id', $eventId))
             )
             ->sum('amount');