Refactor closing price determination in MessengerService

- Introduced a new variable to capture the closing price based on filled stop loss or take profit trades, improving clarity in the closing message.
- Enhanced message formatting to include the closing price when applicable, providing better feedback on trade outcomes.
- Streamlined conditional checks for filled trades to ensure accurate reporting of closing prices.

src/Managing.Application/Shared/MessengerService.cs

@@ -106,19 +106,24 @@ public class MessengerService : IMessengerService
         var message = $"🔒 Closing : {position.OriginDirection} {position.Open.Ticker} \n" +
                       $"📈 Open Price : {position.Open.Price} \n";
 
+        // Determine closing price from whichever trade was filled
+        decimal? closingPrice = null;
         if (position.StopLoss.Status.Equals(Enums.TradeStatus.Filled))
         {
-            message += $"🛑 SL Hit: {position.StopLoss.Price} \n";
+            closingPrice = position.StopLoss.Price;
+        }
+        else if (position.TakeProfit1.Status.Equals(Enums.TradeStatus.Filled))
+        {
+            closingPrice = position.TakeProfit1.Price;
+        }
+        else if (position.TakeProfit2?.Status.Equals(Enums.TradeStatus.Filled) == true)
+        {
+            closingPrice = position.TakeProfit2.Price;
         }
 
-        if (position.TakeProfit1.Status.Equals(Enums.TradeStatus.Filled))
+        if (closingPrice.HasValue)
         {
-            message += $"🎯 TP1 Hit: {position.TakeProfit1.Price} \n";
-        }
-
-        if (position.TakeProfit2?.Status.Equals(Enums.TradeStatus.Filled) == true)
-        {
-            message += $"🎯 TP2 Hit: {position.TakeProfit2.Price} \n";
+            message += $"💰 Closing Price : {closingPrice.Value} \n";
         }
 
         var pnl = position.ProfitAndLoss?.Net ?? 0;