Avatar: Ctrl+V paste + serverseitige Skalierung auf max 256px; Tool-Boxes: Diff-View für edit/write_file, Foldout für alle Tools, stop_reason im Chat; ImageSharp 3.1.12

Services/AnthropicService.cs

@@ -146,7 +146,8 @@ public class AnthropicService
                     outputTokens = usage.OutputTokens,
                     iterations,
                     chainId,
-                    durationMs = sw.ElapsedMilliseconds
+                    durationMs = sw.ElapsedMilliseconds,
+                    stopReason
                 });
                 return;
             }

Services/DatabaseService.cs

@@ -229,7 +229,7 @@ public class DatabaseService
             new { sessionId, now = DateTime.UtcNow.ToString("o") });
     }
 
-    public async Task UpdateSession(string sessionId, System.Text.Json.JsonElement body)
+    public async Task UpdateSession(string sessionId, System.Text.Json.JsonElement body, ImageService imageService = null)
     {
         using var conn = CreateConnection();
         var sets = new List<string> { "updated_at = @now" };
@@ -239,7 +239,13 @@ public class DatabaseService
 
         if (body.TryGetProperty("name", out var n)) { sets.Add("name = @name"); p.Add("name", n.GetString()); }
         if (body.TryGetProperty("description", out var d)) { sets.Add("description = @desc"); p.Add("desc", d.GetString()); }
-        if (body.TryGetProperty("image", out var img)) { sets.Add("image = @image"); p.Add("image", img.GetString()); }
+        if (body.TryGetProperty("image", out var img))
+        {
+            var imageData = img.GetString();
+            if (imageService != null) imageData = imageService.ResizeDataUrl(imageData);
+            sets.Add("image = @image");
+            p.Add("image", imageData);
+        }
         if (body.TryGetProperty("agentId", out var a)) { sets.Add("agent_id = @agentId2"); p.Add("agentId2", a.GetString()); }
         if (body.TryGetProperty("workspace", out var w)) { sets.Add("workspace = @workspace"); p.Add("workspace", w.GetString()); }
         if (body.TryGetProperty("context", out var ctx)) { sets.Add("context = @context"); p.Add("context", ctx.GetString()); }

Services/ImageService.cs

@@ -0,0 +1,47 @@
+using System;
+using System.IO;
+using SixLabors.ImageSharp;
+using SixLabors.ImageSharp.Formats.Png;
+using SixLabors.ImageSharp.Processing;
+
+namespace Gott.Services;
+
+public class ImageService
+{
+    private const int MaxSideLength = 512;
+
+    /// <summary>
+    /// Nimmt eine Base64-Data-URL (z.B. "data:image/png;base64,..."), skaliert das Bild
+    /// auf max 512px Seitenlänge und gibt eine neue Data-URL zurück.
+    /// Gibt null zurück wenn input null/leer ist.
+    /// </summary>
+    public string ResizeDataUrl(string dataUrl)
+    {
+        if (string.IsNullOrEmpty(dataUrl)) return null;
+
+        // Data-URL parsen: "data:<mediaType>;base64,<data>"
+        var commaIndex = dataUrl.IndexOf(',');
+        if (commaIndex < 0) return dataUrl;
+
+        var base64 = dataUrl.Substring(commaIndex + 1);
+        var bytes = Convert.FromBase64String(base64);
+
+        using var image = Image.Load(bytes);
+
+        // Nur skalieren wenn nötig
+        if (image.Width <= MaxSideLength && image.Height <= MaxSideLength)
+            return dataUrl;
+
+        image.Mutate(x => x.Resize(new ResizeOptions
+        {
+            Size = new Size(MaxSideLength, MaxSideLength),
+            Mode = ResizeMode.Max
+        }));
+
+        using var ms = new MemoryStream();
+        image.Save(ms, new PngEncoder());
+        var resizedBase64 = Convert.ToBase64String(ms.ToArray());
+
+        return "data:image/png;base64," + resizedBase64;
+    }
+}