Download and store Shopify product images locally on import

Images are fetched from Shopify CDN, stored in storage/app/public/product-images/
as UUIDs, and saved in the Product.images array — matching Filament's FileUpload format.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/Services/ShopifyService.php

@@ -25,7 +25,7 @@ class ShopifyService
     public function getAllVariants(): array
     {
         $variants = [];
-        $url = "{$this->baseUrl}/products.json?limit=250&fields=id,title,variants";
+        $url = "{$this->baseUrl}/products.json?limit=250&fields=id,title,variants,images";
 
         while ($url) {
             $response = Http::withHeader('X-Shopify-Access-Token', $this->token)->get($url);
@@ -48,6 +48,7 @@ class ShopifyService
             }
 
             foreach ($response->json('products', []) as $product) {
+                $imageUrls = collect($product['images'] ?? [])->pluck('src')->all();
                 foreach ($product['variants'] as $variant) {
                     $variants[] = [
                         'id'                 => (string) $variant['id'],
@@ -55,6 +56,7 @@ class ShopifyService
                         'inventory_quantity'  => (int) ($variant['inventory_quantity'] ?? 0),
                         'product_title'      => $product['title'],
                         'option1'            => $variant['option1'] ?? '',
+                        'image_urls'         => $imageUrls,
                     ];
                 }
             }