MultiSignal Confluence EA v1.13 - Add dynamic lot sizing

New Features:
- InpUseRiskPercent: Enable risk-based lot sizing
- InpRiskPercent: Risk % per trade (default 1.0%)
- CalculateLotSize(): Dynamic lot calculation based on:
  * Account balance
  * Risk percentage
  * Stop loss distance
  * Symbol tick value/size

Lot size formula: Risk$ / (SL_Points * TickValue/TickSize)

Automatically adjusts lot size as account grows/shrinks.
Falls back to fixed InpLotSize if UseRiskPercent=false.

MultiSignal_Confluence_EA.mq5

@@ -5,7 +5,7 @@
 //+------------------------------------------------------------------+
 #property copyright "Copyright 2025, Abbey Road Tech"
 #property link      "https://www.abbeyroadtech.com"
-#property version   "1.12"
+#property version   "1.13"
 #property strict
 
 #include <Trade\Trade.mqh>
@@ -17,7 +17,9 @@ input double   InpMinStrength = 0.90;         // Min signal strength (0.0-1.0) -
 input bool     InpRequireAllAgree = true;     // All signals must agree
 
 input group "=== Risk Management ==="
-input double   InpLotSize = 0.01;             // Lot size
+input double   InpLotSize = 0.01;             // Fixed Lot size (if UseRiskPercent=false)
+input bool     InpUseRiskPercent = true;      // Use risk % for dynamic lot sizing
+input double   InpRiskPercent = 1.0;          // Risk % per trade (1.0 = 1% of account)
 input int      InpStopLoss = 100;             // Stop Loss in points
 input int      InpTakeProfit = 200;           // Take Profit in points
 input bool     InpUseTrailingStop = true;     // Use trailing stop
@@ -386,6 +388,40 @@ void CheckSignals(int &buyCount, int &sellCount, string &sources)
    }
 }
 
+//+------------------------------------------------------------------+
+//| Calculate dynamic lot size based on risk %                       |
+//+------------------------------------------------------------------+
+double CalculateLotSize(double slPoints)
+  {
+   if(!InpUseRiskPercent) return InpLotSize;
+   
+   double accountBalance = AccountInfoDouble(ACCOUNT_BALANCE);
+   double tickSize = SymbolInfoDouble(_Symbol, SYMBOL_TRADE_TICK_SIZE);
+   double tickValue = SymbolInfoDouble(_Symbol, SYMBOL_TRADE_TICK_VALUE);
+   double lotStep = SymbolInfoDouble(_Symbol, SYMBOL_VOLUME_STEP);
+   double minLot = SymbolInfoDouble(_Symbol, SYMBOL_VOLUME_MIN);
+   double maxLot = SymbolInfoDouble(_Symbol, SYMBOL_VOLUME_MAX);
+   
+   if(tickSize <= 0 || slPoints <= 0) return InpLotSize;
+   
+   // Calculate risk amount
+   double riskAmount = accountBalance * InpRiskPercent / 100.0;
+   
+   // Calculate lot size: RiskAmount / (SL_Points * TickValue / TickSize)
+   double lots = riskAmount / (slPoints * tickValue / tickSize);
+   
+   // Normalize to lot step
+   lots = MathFloor(lots / lotStep) * lotStep;
+   
+   // Apply min/max limits
+   lots = MathMax(minLot, MathMin(maxLot, lots));
+   
+   Print("Risk Lot Calc: Balance=", accountBalance, " Risk%=", InpRiskPercent, 
+         " SL=", slPoints, " Lots=", lots);
+   
+   return lots;
+  }
+
 //+------------------------------------------------------------------+
 //| Validate SL/TP Prices                                            |
 //+------------------------------------------------------------------+
@@ -486,7 +522,7 @@ void OpenBuyPosition(double strength, string sources)
       return;
    }
    
-   double lotSize = InpLotSize;
+   double lotSize = CalculateLotSize(InpStopLoss);
    double sl = ask - InpStopLoss * point;
    double tp = ask + InpTakeProfit * point;
    
@@ -530,7 +566,7 @@ void OpenSellPosition(double strength, string sources)
       return;
    }
    
-   double lotSize = InpLotSize;
+   double lotSize = CalculateLotSize(InpStopLoss);
    double sl = bid + InpStopLoss * point;
    double tp = bid - InpTakeProfit * point;