consolidate sketches

sketches/doorbell-touch/TouchDriver.h

@@ -0,0 +1,21 @@
+#pragma once
+#include "BoardConfig.h"
+
+// ═══════════════════════════════════════════════════════════════════
+// Touch driver abstraction
+//
+// XPT2046: integrated in TFT_eSPI — DisplayManager calls
+//          _tft.getTouch() / _tft.setTouch() directly inside
+//          #if USE_TOUCH_XPT2046 blocks.
+//
+// GT911:   separate I2C controller — namespace below.
+// ═══════════════════════════════════════════════════════════════════
+
+#if USE_TOUCH_GT911
+
+namespace TouchDriver {
+  void begin();
+  bool read(uint16_t &x, uint16_t &y);
+}
+
+#endif