feat(touch): add press/release detection with touch-down tracking

boards/esp32-32e-4/DisplayDriverTFT.cpp

@@ -173,11 +173,32 @@ TouchEvent DisplayDriverTFT::readTouch() {
     TouchEvent evt;
     uint16_t tx, ty;
     uint8_t touched = _tft.getTouch(&tx, &ty, 100);
-    if(touched) {
+
+    // Detect transitions (press/release)
+    if(touched && !_touchWasPressed) {
+        // Press transition: finger just touched down
         evt.pressed = true;
+        _touchDownX = tx;
+        _touchDownY = ty;
+        evt.downX = _touchDownX;
+        evt.downY = _touchDownY;
+    } else if(!touched && _touchWasPressed) {
+        // Release transition: finger just lifted
+        evt.released = true;
+        evt.downX = _touchDownX;
+        evt.downY = _touchDownY;
+    }
+
+    // Current position if still touched
+    if(touched) {
         evt.x = tx;
         evt.y = ty;
+        evt.downX = _touchDownX;
+        evt.downY = _touchDownY;
     }
+
+    // Track previous state for next call
+    _touchWasPressed = touched;
     return evt;
 }
 

boards/esp32-32e-4/DisplayDriverTFT.h

@@ -32,4 +32,9 @@ private:
     ScreenID _lastScreen = ScreenID::BOOT;
     BootStage _lastBootStage = BootStage::SPLASH;
     bool _needsRedraw = true;
+
+    // Touch tracking for press/release detection
+    bool _touchWasPressed = false;
+    int _touchDownX = -1;
+    int _touchDownY = -1;
 };