Added file type filtering to file selection dialogs (#442)

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

@@ -0,0 +1,10 @@
+namespace AIStudio.Tools.Rust;
+
+public sealed class SelectFileOptions
+{
+    public required string Title { get; init; }
+    
+    public PreviousFile? PreviousFile { get; init; }
+
+    public FileTypeFilter? Filter { get; init; }
+}