fix: enforce stock limits on basket quantities

No stock validation existed in the ordering flow, allowing customers
to order more items than available.

Cap quantity to ``stock_current`` in ``Baskets::getBasketData()`` when
adding to cart. Add ``min=1`` and ``max=stock`` attributes on the
basket quantity input, with JS clamping in the change handler.
Verify stock again in ``Shop\OrderController::store()`` before saving
the order as a race-condition safeguard.

app/Http/Controllers/Shop/OrderController.php

@@ -12,6 +12,7 @@ use App\Repositories\Shop\Customers;
 use App\Repositories\Shop\CustomerAddresses;
 use App\Repositories\Shop\Deliveries;
 use App\Repositories\Shop\DeliveryTypes;
+use App\Repositories\Shop\Offers;
 use App\Repositories\Shop\OrderMails;
 use App\Repositories\Shop\Orders;
 use App\Repositories\Shop\Paybox;
@@ -94,6 +95,25 @@ class OrderController extends Controller
         $data['customer_id'] = Customers::getId();
         $data['sale_channel_id'] = $data['sale_channel_id'] ?? SaleChannels::getDefaultID();
         $data['basket'] = Baskets::getBasketSummary($data['sale_channel_id'], $data['delivery_type_id'] ?? false);
+
+        // Vérifier le stock avant de valider la commande
+        $insufficients = [];
+        foreach ($data['basket']['detail'] as $item) {
+            $offer = Offers::get($item['offer_id']);
+            if ($offer && $offer->stock_current !== null && $item['quantity'] > $offer->stock_current) {
+                $offer->load('article');
+                $insufficients[] = ($offer->article->name ?? 'Offre #'.$offer->id)
+                    .' (stock : '.(int) $offer->stock_current.', demandé : '.$item['quantity'].')';
+            }
+        }
+
+        if (! empty($insufficients)) {
+            return redirect()->back()->withInput()->with(
+                'growl',
+                ['Stock insuffisant pour : '.implode(' ; ', $insufficients).'. Veuillez ajuster les quantités.', 'danger']
+            );
+        }
+
         $order = Orders::saveOrder($data);
 
         if ($order) {

app/Repositories/Shop/Articles.php

@@ -43,6 +43,7 @@ class Articles
                 'id' => $offer->id,
                 'name' => $offer->variation->name,
                 'prices' => $offer->tariff->price_lists->first()->price_list_values->toArray(),
+                'stock' => $offer->stock_current !== null ? (int) $offer->stock_current : null,
             ];
         }
 

app/Repositories/Shop/Baskets.php

@@ -116,6 +116,7 @@ class Baskets
                 'variation' => $offer->variation->name,
                 'image' => Articles::getPreviewSrc(ArticleImages::getFullImageByArticle($offer->article)),
                 'latin' => $offer->article->product->specie->latin ?? false,
+                'stock' => $offer->stock_current !== null ? (int) $offer->stock_current : null,
             ];
         }
 
@@ -144,6 +145,13 @@ class Baskets
     {
         $offer = Offers::get($id, ['article', 'variation']);
 
+        if ($offer && $offer->stock_current !== null) {
+            $quantity = min($quantity, max(0, (int) $offer->stock_current));
+            if ($quantity <= 0) {
+                return false;
+            }
+        }
+
         return [
             'id' => $id,
             'name' => self::getArticleName($offer),