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;

app/Services/LivePriceCacheService.php

@@ -131,8 +131,8 @@ class LivePriceCacheService
 
         $payload['up'] = $config->resolvedDailyBaseExtremes()['up'] > 0
             ? [
-                'sell' => max(0, (int) ceil($config->resolvedDailyBaseExtremes()['down'] - $config->displaySellSpreadRial())),
-                'buy' => (int) ceil($config->resolvedDailyBaseExtremes()['up'] + $config->displayBuySpreadRial()),
+                'sell' => max(0, (int) ceil($config->resolvedDailyBaseExtremes()['down'] - $config->displaySellPriceDiffRial())),
+                'buy' => (int) ceil($config->resolvedDailyBaseExtremes()['up'] + $config->displayBuyPriceDiffRial()),
             ]
             : ['sell' => $payload['sell'] ?? 0, 'buy' => $payload['buy'] ?? 0];
         $payload['last_historical'] = $display->resolveHistoricalBasePrice();

app/Services/ProductDisplayPriceService.php

@@ -465,8 +465,8 @@ class ProductDisplayPriceService
             }
         }
 
-        $diffBuy = (int) $config->displayBuySpreadRial();
-        $diffSell = (int) $config->displaySellSpreadRial();
+        $diffBuy = (int) $config->displayBuyPriceDiffRial();
+        $diffSell = (int) $config->displaySellPriceDiffRial();
 
         $payload = [
             'price' => $price,