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/AnthropicTool.cs

@@ -0,0 +1,21 @@
+using System.Text.Json;
+
+namespace AIStudio.Provider.Anthropic;
+
+/// <summary>
+/// A tool as the Anthropic messages API expects it.
+/// </summary>
+/// <remarks>
+/// Anthropic names the schema field input schema, where the chat completions and responses APIs
+/// call it parameters. The description is the plain one, without their nesting.
+/// </remarks>
+public sealed record AnthropicTool
+{
+    public string Name { get; init; } = string.Empty;
+
+    public string Description { get; init; } = string.Empty;
+
+    public bool Strict { get; init; }
+
+    public JsonElement InputSchema { get; init; }
+}