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>

Models/TokenUsageRecord.cs

@@ -0,0 +1,51 @@
+using System.Text.Json.Serialization;
+
+namespace ClawdDotNet.Models;
+
+public sealed class TokenUsageRecord
+{
+    [JsonPropertyName("timestamp")]
+    public DateTime Timestamp { get; set; } = DateTime.Now;
+
+    [JsonPropertyName("agentId")]
+    public string AgentId { get; set; } = "";
+
+    [JsonPropertyName("agentName")]
+    public string AgentName { get; set; } = "";
+
+    [JsonPropertyName("model")]
+    public string Model { get; set; } = "";
+
+    [JsonPropertyName("promptTokens")]
+    public int PromptTokens { get; set; }
+
+    [JsonPropertyName("completionTokens")]
+    public int CompletionTokens { get; set; }
+
+    [JsonPropertyName("totalTokens")]
+    public int TotalTokens { get; set; }
+
+    [JsonPropertyName("costUsd")]
+    public double CostUsd { get; set; }
+
+    [JsonPropertyName("status")]
+    public string Status { get; set; } = "";
+
+    [JsonPropertyName("stepCount")]
+    public int StepCount { get; set; }
+
+    [JsonPropertyName("durationMs")]
+    public long DurationMs { get; set; }
+}
+
+public sealed class TokenUsageFile
+{
+    [JsonPropertyName("instanceId")]
+    public string InstanceId { get; set; } = "";
+
+    [JsonPropertyName("instanceName")]
+    public string InstanceName { get; set; } = "";
+
+    [JsonPropertyName("records")]
+    public List<TokenUsageRecord> Records { get; set; } = new();
+}