Add 'Publish to Shopify' for locally-created products

New header action on the product edit page creates the entire product
(title, description, all variants) in Shopify via API. The returned
shopify_product_id and per-variant shopify_variant_ids are stored
locally. After success the page reloads so status badges update.
Button is hidden once the product is already linked to Shopify.

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

app/Filament/User/Resources/ProductResource/Pages/EditProduct.php

@@ -17,6 +17,15 @@ class EditProduct extends EditRecord
     protected function getHeaderActions(): array
     {
         return [
+            Actions\Action::make('shopify-create-product')
+                ->label('In Shopify veröffentlichen')
+                ->icon('heroicon-o-arrow-up-tray')
+                ->color('warning')
+                ->requiresConfirmation()
+                ->modalHeading('Produkt in Shopify anlegen')
+                ->modalDescription('Erstellt das Produkt mit allen Varianten in Shopify und verknüpft die IDs.')
+                ->visible(fn () => ! $this->record->shopify_product_id)
+                ->action(fn () => $this->createProductInShopify()),
             Actions\Action::make('rezept-versionen')
                 ->label('Rezept-Versionen')
                 ->icon('heroicon-o-clock')
@@ -112,6 +121,35 @@ class EditProduct extends EditRecord
         $product->update(['recipes_id' => $recipe->id]);
     }
 
+    public function createProductInShopify(): void
+    {
+        $product = $this->record;
+
+        if ($product->shopify_product_id) {
+            Notification::make()->title('Bereits in Shopify verknüpft')->warning()->send();
+            return;
+        }
+
+        $sizes = ProductSize::with('packing')->where('product_id', $product->id)->get();
+
+        try {
+            $result = app(ShopifyService::class)->createProduct($product, $sizes);
+
+            $product->update(['shopify_product_id' => $result['shopify_product_id']]);
+
+            foreach ($result['variants'] as $packingId => $variantId) {
+                ProductSize::where('product_id', $product->id)
+                    ->where('packing_id', $packingId)
+                    ->update(['shopify_variant_id' => $variantId]);
+            }
+
+            Notification::make()->title('Produkt in Shopify erstellt')->success()->send();
+            $this->redirect(ProductResource::getUrl('edit', ['record' => $product]));
+        } catch (\Throwable $e) {
+            Notification::make()->title('Shopify-Fehler')->body($e->getMessage())->danger()->send();
+        }
+    }
+
     public function publishVariantToShopify(int $sizeId): void
     {
         $size    = ProductSize::with('packing')->find($sizeId);