Initial commit: ClawdDotNet

Import des bestehenden Projektstands in Git.
- .NET 10 WinForms Anwendung (Multi-Agent / Tool-System)
- .gitignore fuer Build-Artefakte, Secrets und Runtime-Daten ergaenzt

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/ClawdDotNet.Core/Logging/LoggingExtensions.cs

@@ -0,0 +1,42 @@
+using Microsoft.Extensions.Logging;
+
+namespace ClawdDotNet.Core.Logging;
+
+public static class LoggingExtensions
+{
+    public static ILoggerFactory AddClawdFileLogging(
+        this ILoggerFactory factory,
+        FileLoggerOptions? options = null)
+    {
+        factory.AddProvider(new FileLoggerProvider(options ?? new FileLoggerOptions()));
+        return factory;
+    }
+
+    public static ILoggerFactory CreateClawdLoggerFactory(
+        string logDirectory = "./Logs",
+        LogLevel minimumLevel = LogLevel.Info)
+    {
+        var options = new FileLoggerOptions
+        {
+            LogDirectory = logDirectory,
+            MinimumLevel = minimumLevel
+        };
+
+        var factory = LoggerFactory.Create(builder =>
+        {
+            builder.SetMinimumLevel(MapToMelLevel(minimumLevel));
+        });
+
+        factory.AddClawdFileLogging(options);
+        return factory;
+    }
+
+    private static Microsoft.Extensions.Logging.LogLevel MapToMelLevel(LogLevel level) => level switch
+    {
+        LogLevel.Debug => Microsoft.Extensions.Logging.LogLevel.Debug,
+        LogLevel.Info => Microsoft.Extensions.Logging.LogLevel.Information,
+        LogLevel.Warn => Microsoft.Extensions.Logging.LogLevel.Warning,
+        LogLevel.Error => Microsoft.Extensions.Logging.LogLevel.Error,
+        _ => Microsoft.Extensions.Logging.LogLevel.Information
+    };
+}