added functionality to save/move tokenizer file

app/MindWork AI Studio/Tools/Rust/FileType.cs

@@ -0,0 +1,41 @@
+namespace AIStudio.Tools.Rust;
+
+/// <summary>
+/// Represents a file type that can optionally contain child file types.
+/// Use the static helpers <see cref="Leaf"/>,  <see cref="Parent"/> and <see cref="Composite"/> to build readable trees.
+/// </summary>
+/// <param name="FilterName">Display name of the type (e.g., "Document").</param>
+/// <param name="FilterExtensions">File extensions belonging to this type (without dot).</param>
+/// <param name="Children">Nested file types that are included when this type is selected.</param>
+public sealed record FileType(string FilterName, string[] FilterExtensions, IReadOnlyList<FileType> Children)
+{
+    /// <summary>
+    /// Factory for a leaf node.
+    /// Example: <c>FileType.Leaf(".NET", "cs", "razor")</c>
+    /// </summary>
+    public static FileType Leaf(string name, params string[] extensions) =>
+        new(name, extensions, []);
+
+    /// <summary>
+    /// Factory for a parent node that only has children.
+    /// Example: <c>FileType.Parent("Source Code", dotnet, java)</c>
+    /// </summary>
+    public static FileType Parent(string name, params FileType[]? children) =>
+        new(name, [], children ?? []);
+
+    /// <summary>
+    /// Factory for a composite node that has its own extensions in addition to children.
+    /// </summary>
+    public static FileType Composite(string name, string[] extensions, params FileType[] children) =>
+        new(name, extensions, children);
+
+    /// <summary>
+    /// Collects all extensions for this type, including children.
+    /// </summary>
+    public IEnumerable<string> FlattenExtensions()
+    {
+        return this.FilterExtensions
+            .Concat(this.Children.SelectMany(child => child.FlattenExtensions()))
+            .Distinct(StringComparer.OrdinalIgnoreCase);
+    }
+}

app/MindWork AI Studio/Tools/Rust/FileTypes.cs

@@ -127,4 +127,4 @@ public static class FileTypes
         
         return false;
     }
-}
+}

app/MindWork AI Studio/Tools/Rust/TokenizerHandlingResponse.cs

@@ -0,0 +1,3 @@
+namespace AIStudio.Tools.Rust;
+
+public readonly record struct TokenizerHandlingResponse(int Success, string Response);

app/MindWork AI Studio/Tools/Rust/TokenizerResponse.cs

@@ -0,0 +1,3 @@
+namespace AIStudio.Tools.Rust;
+
+public readonly record struct TokenizerResponse(bool Success, int TokenCount, string Message);