chore: Improve wrapper thread safety and logging

- Add thread-safe locking to BaseNT8StrategyWrapper
- Add BasicLogger initialization
- Improve null checking and error handling
- Minor adapter enhancements

src/NT8.Adapters/NinjaTrader/NT8Adapter.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using NT8.Core.Common.Interfaces;
 using NT8.Core.Common.Models;
 using NT8.Core.Risk;
@@ -12,9 +13,11 @@ namespace NT8.Adapters.NinjaTrader
     /// </summary>
     public class NT8Adapter : INT8Adapter
     {
+        private readonly object _lock = new object();
         private readonly NT8DataAdapter _dataAdapter;
         private readonly NT8OrderAdapter _orderAdapter;
         private readonly NT8LoggingAdapter _loggingAdapter;
+        private readonly List<NT8OrderExecutionRecord> _executionHistory;
         private IRiskManager _riskManager;
         private IPositionSizer _positionSizer;
 
@@ -26,6 +29,7 @@ namespace NT8.Adapters.NinjaTrader
             _dataAdapter = new NT8DataAdapter();
             _orderAdapter = new NT8OrderAdapter();
             _loggingAdapter = new NT8LoggingAdapter();
+            _executionHistory = new List<NT8OrderExecutionRecord>();
         }
 
         /// <summary>
@@ -67,10 +71,32 @@ namespace NT8.Adapters.NinjaTrader
         /// </summary>
         public void ExecuteIntent(StrategyIntent intent, SizingResult sizing)
         {
+            if (intent == null)
+            {
+                throw new ArgumentNullException("intent");
+            }
+
+            if (sizing == null)
+            {
+                throw new ArgumentNullException("sizing");
+            }
+
             // In a full implementation, this would execute the order through NT8
             // For now, we'll just log what would be executed
             _loggingAdapter.LogInformation("Executing intent: {0} {1} contracts at {2} ticks stop",
                 intent.Side, sizing.Contracts, intent.StopTicks);
+
+            lock (_lock)
+            {
+                _executionHistory.Add(new NT8OrderExecutionRecord(
+                    intent.Symbol,
+                    intent.Side,
+                    intent.EntryType,
+                    sizing.Contracts,
+                    intent.StopTicks,
+                    intent.TargetTicks,
+                    DateTime.UtcNow));
+            }
         }
 
         /// <summary>
@@ -88,5 +114,17 @@ namespace NT8.Adapters.NinjaTrader
         {
             _orderAdapter.OnExecutionUpdate(executionId, orderId, price, quantity, marketPosition, time);
         }
+
+        /// <summary>
+        /// Gets execution history captured by the order adapter.
+        /// </summary>
+        /// <returns>Execution history snapshot.</returns>
+        public IList<NT8OrderExecutionRecord> GetExecutionHistory()
+        {
+            lock (_lock)
+            {
+                return new List<NT8OrderExecutionRecord>(_executionHistory);
+            }
+        }
     }
 }