Added tool calling support (#731)

Co-authored-by: krut_ni <nils.kruthoff@dlr.de>
Co-authored-by: Thorsten Sommer <SommerEngineering@users.noreply.github.com>

app/MindWork AI Studio/Provider/Anthropic/AnthropicToolResultContent.cs

@@ -0,0 +1,22 @@
+using System.Text.Json.Serialization;
+
+namespace AIStudio.Provider.Anthropic;
+
+public sealed record AnthropicToolResultContent
+{
+    public string Type { get; init; } = "tool_result";
+
+    public string ToolUseId { get; init; } = string.Empty;
+
+    public string Content { get; init; } = string.Empty;
+
+    /// <summary>
+    /// Whether the tool failed rather than returning a result.
+    /// </summary>
+    /// <remarks>
+    /// Only sent when true: Anthropic reads its absence as success, and this way a successful
+    /// result stays byte-identical to what earlier versions sent.
+    /// </remarks>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public bool IsError { get; init; }
+}