fix fee calculation

src/Managing.Application/Bots/TradingBot.cs

@@ -1304,14 +1304,34 @@ public class TradingBot : Bot, ITradingBot
         decimal fees = 0;
 
         // Calculate position size in USD (leverage is already included in quantity calculation)
-        var positionSizeUsd = position.Open.Price * position.Open.Quantity;
+        var positionSizeUsd = (position.Open.Price * position.Open.Quantity) * position.Open.Leverage;
 
-        // UI Fee: 0.1% of position size paid BOTH on opening AND closing
+        // UI Fee: 0.1% of position size paid on opening
         var uiFeeRate = 0.001m; // 0.1%
         var uiFeeOpen = positionSizeUsd * uiFeeRate; // Fee paid on opening
-        var uiFeeClose = positionSizeUsd * uiFeeRate; // Fee paid on closing
+        fees += uiFeeOpen;
-        var totalUiFees = uiFeeOpen + uiFeeClose; // Total: 0.2% of position size
+
-        fees += totalUiFees;
+        // UI Fee: 0.1% of position size paid on closing - only if position was actually closed
+        // Check which closing trade was executed (StopLoss, TakeProfit1, or TakeProfit2)
+        // Calculate closing fee based on the actual executed trade's price and quantity
+        if (position.StopLoss?.Status == TradeStatus.Filled)
+        {
+            var stopLossPositionSizeUsd = (position.StopLoss.Price * position.StopLoss.Quantity) * position.StopLoss.Leverage;
+            var uiFeeClose = stopLossPositionSizeUsd * uiFeeRate; // Fee paid on closing via StopLoss
+            fees += uiFeeClose;
+        }
+        else if (position.TakeProfit1?.Status == TradeStatus.Filled)
+        {
+            var takeProfit1PositionSizeUsd = (position.TakeProfit1.Price * position.TakeProfit1.Quantity) * position.TakeProfit1.Leverage;
+            var uiFeeClose = takeProfit1PositionSizeUsd * uiFeeRate; // Fee paid on closing via TakeProfit1
+            fees += uiFeeClose;
+        }
+        else if (position.TakeProfit2?.Status == TradeStatus.Filled)
+        {
+            var takeProfit2PositionSizeUsd = (position.TakeProfit2.Price * position.TakeProfit2.Quantity) * position.TakeProfit2.Leverage;
+            var uiFeeClose = takeProfit2PositionSizeUsd * uiFeeRate; // Fee paid on closing via TakeProfit2
+            fees += uiFeeClose;
+        }
 
         // Network Fee: $0.50 for opening position only
         // Closing is handled by oracle, so no network fee for closing