Phase 0 completion: NT8 SDK core framework with risk management and position sizing

src/NT8.Core/Logging/BasicLogger.cs

@@ -0,0 +1,51 @@
+using System;
+
+namespace NT8.Core.Logging
+{
+    /// <summary>
+    /// Basic console logger implementation for .NET Framework 4.8
+    /// </summary>
+    public class BasicLogger : ILogger
+    {
+        private readonly string _categoryName;
+
+        public BasicLogger(string categoryName = "")
+        {
+            _categoryName = categoryName;
+        }
+
+        public void LogDebug(string message, params object[] args)
+        {
+            WriteLog("DEBUG", message, args);
+        }
+
+        public void LogInformation(string message, params object[] args)
+        {
+            WriteLog("INFO", message, args);
+        }
+
+        public void LogWarning(string message, params object[] args)
+        {
+            WriteLog("WARN", message, args);
+        }
+
+        public void LogError(string message, params object[] args)
+        {
+            WriteLog("ERROR", message, args);
+        }
+
+        public void LogCritical(string message, params object[] args)
+        {
+            WriteLog("CRITICAL", message, args);
+        }
+
+        private void WriteLog(string level, string message, params object[] args)
+        {
+            var timestamp = DateTime.UtcNow.ToString("yyyy-MM-dd HH:mm:ss.fff");
+            var formattedMessage = args.Length > 0 ? String.Format(message, args) : message;
+            var category = !String.IsNullOrEmpty(_categoryName) ? String.Format("[{0}] ", _categoryName) : "";
+            
+            Console.WriteLine(String.Format("{0} [{1}] {2}{3}", timestamp, level, category, formattedMessage));
+        }
+    }
+}

src/NT8.Core/Logging/ILogger.cs

@@ -0,0 +1,16 @@
+using System;
+
+namespace NT8.Core.Logging
+{
+    /// <summary>
+    /// Basic logging interface for .NET Framework 4.8 compatibility
+    /// </summary>
+    public interface ILogger
+    {
+        void LogDebug(string message, params object[] args);
+        void LogInformation(string message, params object[] args);
+        void LogWarning(string message, params object[] args);
+        void LogError(string message, params object[] args);
+        void LogCritical(string message, params object[] args);
+    }
+}