fix: include languages.pl content when saving categories to shopPRO

shopPRO's products/update clears ALL language fields (name, description,
short_description, etc.) for any language not included in the payload.
Sending only {"categories":[...]} wiped them out.

saveProductCategoriesJson() now:
1. Looks up the local orderPRO product via findMappedProductId()
2. Loads per-integration translation (with global fallback)
3. Includes languages.pl in the payload alongside categories

Also adds ProductRepository to MarketplaceController constructor.

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

routes/web.php

@@ -92,7 +92,8 @@ return static function (Application $app): void {
         $auth,
         $marketplaceRepository,
         $integrationRepository,
-        $shopProClient
+        $shopProClient,
+        $productRepository
     );
     $authMiddleware = new AuthMiddleware($auth);
 

src/Modules/Marketplace/MarketplaceController.php

@@ -10,6 +10,7 @@ use App\Core\Security\Csrf;
 use App\Core\Support\Flash;
 use App\Core\View\Template;
 use App\Modules\Auth\AuthService;
+use App\Modules\Products\ProductRepository;
 use App\Modules\Settings\IntegrationRepository;
 use App\Modules\Settings\ShopProClient;
 
@@ -21,7 +22,8 @@ final class MarketplaceController
         private readonly AuthService $auth,
         private readonly MarketplaceRepository $marketplace,
         private readonly IntegrationRepository $integrationRepository,
-        private readonly ShopProClient $shopProClient
+        private readonly ShopProClient $shopProClient,
+        private readonly ProductRepository $productRepository
     ) {
     }
 
@@ -177,12 +179,46 @@ final class MarketplaceController
             ? array_values(array_filter(array_map('intval', $body['category_ids']), static fn(int $id): bool => $id > 0))
             : [];
 
+        $payload = ['categories' => $categoryIds];
+
+        // Include language content so shopPRO doesn't clear name/description when saving categories.
+        // Use per-integration translation if set, otherwise fall back to global product translation.
+        $localProductId = $this->integrationRepository->findMappedProductId(
+            'shoppro',
+            (string) $externalProductId,
+            $integrationId
+        );
+        if ($localProductId !== null && $localProductId > 0) {
+            $integrationTranslation = null;
+            foreach ($this->productRepository->findIntegrationTranslations($localProductId) as $row) {
+                if ((int) ($row['integration_id'] ?? 0) === $integrationId) {
+                    $integrationTranslation = $row;
+                    break;
+                }
+            }
+            $global = $this->productRepository->findById($localProductId, 'pl');
+            if ($global !== null) {
+                $name = (string) ($integrationTranslation['name'] ?? $global['name'] ?? '');
+                $payload['languages'] = [
+                    'pl' => [
+                        'name'              => $name !== '' ? $name : ('orderPRO #' . $localProductId),
+                        'short_description' => $integrationTranslation['short_description'] ?? $global['short_description'] ?? null,
+                        'description'       => $integrationTranslation['description'] ?? $global['description'] ?? null,
+                        'meta_title'        => $global['meta_title'] ?? null,
+                        'meta_description'  => $global['meta_description'] ?? null,
+                        'meta_keywords'     => $global['meta_keywords'] ?? null,
+                        'seo_link'          => $global['seo_link'] ?? null,
+                    ],
+                ];
+            }
+        }
+
         $result = $this->shopProClient->updateProduct(
             (string) ($creds['base_url'] ?? ''),
             (string) ($creds['api_key'] ?? ''),
             (int) ($creds['timeout_seconds'] ?? 10),
             $externalProductId,
-            ['categories' => $categoryIds]
+            $payload
         );
 
         if (!($result['ok'] ?? false)) {