Feat: Adding Purchasable to 'in_stock' when importing a new product

src/MigrateImport/Shopify/ShopifyExportImporter.php

@@ -163,6 +163,12 @@ class ShopifyExportImporter implements Importer
         $variant->sku = trim((string) ($row['Variant SKU'] ?? '')) ?: null;
         $variant->stock = (int) ($row['Variant Inventory Qty'] ?? 0);
         $variant->shippable = filter_var($row['Variant Requires Shipping'] ?? 'true', FILTER_VALIDATE_BOOLEAN);
+        // Lunar's own column default is 'always' (purchasable regardless of
+        // stock) — wrong for an imported catalogue, whose Variant Inventory
+        // Qty is real, meaningful stock data. 'in_stock' makes purchasability
+        // actually respect it (see Modules\Core\Catalog\Services\
+        // StockService's own docblock on the three purchasable values).
+        $variant->purchasable = 'in_stock';
         $variant->save();
 
         ImportMapping::record(self::SOURCE, 'variant', $externalId, $variant);