feat: refactor cart and bundle handling to support Buyable interface for improved flexibility

app/Domains/Catalog/Models/ProductVariant.php

@@ -12,7 +12,7 @@ use Illuminate\Database\Eloquent\Relations\HasMany;
 
 use Illuminate\Database\Eloquent\Casts\Attribute;
 
-use App\Domains\Shared\Contracts\Stockable;
+use App\Domains\Shared\Contracts\Buyable;
 
 #[Fillable([
     'producto_id',
@@ -24,7 +24,7 @@ use App\Domains\Shared\Contracts\Stockable;
     'minimum_use_date',
     'maximum_use_date',
 ])]
-class ProductVariant extends Model implements Stockable
+class ProductVariant extends Model implements Buyable
 {
     use HasFactory;
 
@@ -54,6 +54,28 @@ class ProductVariant extends Model implements Stockable
         }
     }
 
+    public function getPrice(): float
+    {
+        return (float) ($this->product->precio ?? 0.0);
+    }
+
+    public function getName(): string
+    {
+        $name = $this->product->nombre ?? 'Producto';
+        
+        if ($this->relationLoaded('definitions') && $this->definitions->isNotEmpty()) {
+            $definitions = $this->definitions->map(function ($def) {
+                return $def->value ?? $def->productAttribute?->attribute?->nombre;
+            })->filter()->implode(', ');
+            
+            if ($definitions !== '') {
+                $name .= " ({$definitions})";
+            }
+        }
+        
+        return $name;
+    }
+
     public function incrementRealStock(int $amount): void
     {
         if ($amount < 0) {