fix sql

app/Services/ConfigService.php

@@ -93,7 +93,7 @@ class ConfigService
     }
 
     /** اختلاف خرید نمایش (/api/price/last) — fee_single / buy_fee */
-    public function displayBuySpreadRial(): float
+    public function displayBuyPriceDiffRial(): float
     {
         $feeSingle = (float) $this->get('fee_single', 0);
         $buyFee = (float) $this->get('buy_fee', $feeSingle);
@@ -102,7 +102,7 @@ class ConfigService
     }
 
     /** اختلاف فروش نمایش — fee_single / sell_fee */
-    public function displaySellSpreadRial(): float
+    public function displaySellPriceDiffRial(): float
     {
         $feeSingle = (float) $this->get('fee_single', 0);
         $sellFee = (float) $this->get('sell_fee', $feeSingle);
@@ -111,7 +111,7 @@ class ConfigService
     }
 
     /** اختلاف ریالی سفارش — fee_single، بعد fee_cash (legacy)، بعد config/fee.php */
-    public function orderSpreadRial(): float
+    public function orderPriceDiffRial(): float
     {
         $feeSingle = $this->getString('fee_single', '');
         if ($feeSingle !== '') {
@@ -161,8 +161,8 @@ class ConfigService
         ?string $priceSource = null,
         array $montzarFlags = []
     ): array {
-        $diffBuy = (float) $this->displayBuySpreadRial();
-        $diffSell = (float) $this->displaySellSpreadRial();
+        $diffBuy = (float) $this->displayBuyPriceDiffRial();
+        $diffSell = (float) $this->displaySellPriceDiffRial();
         $feeSingle = (float) $this->get('fee_single', 0);
 
         $openBuy = true;