feat(entry): refine variant selection logic to exclude replaced variants and add unit tests for replacement behavior

app/Domains/FiestaFutbolInfantil/Resources/EntryResource.php

@@ -12,7 +12,7 @@ class EntryResource extends JsonResource
     /** @return array<string, mixed> */
     public function toArray(Request $request): array
     {
-        $variant = $this->variants->sole();
+        $variant = $this->variants->whereNull('replaced_by_variant_id')->sole();
 
         return [
             'id' => $this->id,

app/Domains/FiestaFutbolInfantil/Services/EntryService.php

@@ -97,6 +97,7 @@ class EntryService
 
         $variants = Variant::query()
             ->where('catalog_item_id', $catalogItem->id)
+            ->whereNull('replaced_by_variant_id')
             ->lockForUpdate()
             ->get();