Align touch with temperature XPT2046 driver and LVGL inverse map.

Mux VSPI between SD and touch; map like climate UI then undo ROTATION_270 so buttons hit.

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

include/bus_vspi.h

@@ -0,0 +1,8 @@
+#pragma once
+
+#include <SPI.h>
+
+// CYD：触摸与 SD 共用 VSPI，按需切换引脚
+SPIClass &cyd_vspi();
+void cyd_vspi_select_touch();
+void cyd_vspi_select_sd();