lightweight variant

CursorLang.Core/Services/IKeyboardLayoutService.cs

@@ -0,0 +1,21 @@
+using CursorLang.Core.Models;
+
+namespace CursorLang.Core.Services;
+
+/// <summary>
+/// Tracks the layout of the active window — including in other applications —
+/// and can switch it.
+/// </summary>
+public interface IKeyboardLayoutService
+{
+    /// <summary>The layout of the active window at the moment.</summary>
+    KeyboardLayout Current { get; }
+
+    event EventHandler<LayoutChangedEventArgs>? LayoutChanged;
+
+    void Start();
+
+    void Stop();
+
+    void SwitchToNext();
+}