Add button counter test on GPIO22 with SoftSPI touch and LVGL.

Each press increments on-screen count; touch Reset clears. Flashable firmware/cyd package.

Co-authored-by: Cursor <cursoragent@cursor.com>

include/ui.h

@@ -0,0 +1,4 @@
+#pragma once
+
+void ui_create();
+void ui_refresh_count();