Persistenz: SQLite + Dapper, chains/messages Tabellen, History-Endpoint, Frontend History-Load

Models/ChainRecord.cs

@@ -0,0 +1,16 @@
+namespace Gott.Models;
+
+public class ChainRecord
+{
+    public long Id { get; set; }
+    public string ChainId { get; set; }
+    public string SessionId { get; set; }
+    public string Model { get; set; }
+    public string SystemPrompt { get; set; }
+    public long InputTokens { get; set; }
+    public long OutputTokens { get; set; }
+    public int Iterations { get; set; }
+    public string StopReason { get; set; }
+    public long DurationMs { get; set; }
+    public string CreatedAt { get; set; }
+}