feat(server): evaluate price alerts per product and fix gold discharge rounding

Alerts now bind to a product_id and share one evaluator; displayed gold within a rounding step discharges the full wallet.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Http/Controllers/Customer/PriceTriggerController.php

@@ -2,8 +2,10 @@
 namespace App\Http\Controllers\Customer;
 
 use App\Http\Controllers\SuperController;
+use App\Models\PriceTrigger;
+use App\Models\Product;
 use Illuminate\Http\Request;
-use App\Models\PriceTrigger; // اطمینان حاصل کنید که این مدل به درستی وارد شده است
+use Symfony\Component\HttpKernel\Exception\UnprocessableEntityHttpException;
 
 class PriceTriggerController extends SuperController
 {
@@ -24,10 +26,55 @@ class PriceTriggerController extends SuperController
      */
     public function index()
     {
-        $data=PriceTrigger::where("customer_id",auth()->id())->get();
-        return response()->json($data);
+        $query = PriceTrigger::where("customer_id", auth()->id());
+        if (PriceTrigger::hasProductIdColumn()) {
+            $query->with(['product:id,title']);
+        }
+
+        return response()->json($query->get());
     }
-  
 
+    public function store(Request $request)
+    {
+        $this->sanitizeProductId($request, true);
+
+        return parent::store($request);
+    }
+
+    public function update(Request $request, $id)
+    {
+        $this->sanitizeProductId($request, false);
+
+        return parent::update($request, $id);
+    }
+
+    private function sanitizeProductId(Request $request, bool $required): void
+    {
+        if (! PriceTrigger::hasProductIdColumn()) {
+            $request->request->remove('product_id');
+
+            return;
+        }
+
+        $productId = $request->input('product_id');
+        if ($productId === null || $productId === '') {
+            if ($required) {
+                throw new UnprocessableEntityHttpException('محصول را انتخاب کنید');
+            }
+            $request->request->remove('product_id');
+
+            return;
+        }
+
+        $exists = Product::query()
+            ->where('id', (int) $productId)
+            ->where('active', 1)
+            ->exists();
+
+        if (! $exists) {
+            throw new UnprocessableEntityHttpException('محصول نامعتبر است');
+        }
+
+        $request->merge(['product_id' => (int) $productId]);
+    }
 }
-