Add touch gesture support and LilyGo T5 S3 board

Implements bottom-edge swipe-up gesture detection and delayed touch-select with tracking state. Adds isTouchTapCandidate() to distinguish taps from swipes. Includes LilyGo T5 S3 board configuration with USB CDC logging transport for boards where Serial operator bool reports false incorrectly.

src/MappedInputManager.cpp

@@ -63,8 +63,25 @@ bool MappedInputManager::mapButton(const Button button, bool (HalGPIO::*fn)(uint
 // Top-left corner fallback, as a fraction of the logical screen. Generous to hit.
 static constexpr float BACK_GESTURE_FRAC_X = 0.22f;
 static constexpr float BACK_GESTURE_FRAC_Y = 0.12f;
+static constexpr float BOTTOM_EDGE_BACK_GESTURE_FRAC_Y = 0.14f;
+static constexpr unsigned long TOUCH_DOWN_SELECT_DELAY_MS = 90;
+
+bool MappedInputManager::wasBottomEdgeSwipeUp() const {
+  float nxs = 0.0f, nys = 0.0f, nxe = 0.0f, nye = 0.0f;
+  if (!gpio.wasSwipe(nxs, nys, nxe, nye)) return false;
+
+  int sx = 0, sy = 0, ex = 0, ey = 0;
+  renderer.tapToLogical(nxs, nys, sx, sy);
+  renderer.tapToLogical(nxe, nye, ex, ey);
+
+  const int screenHeight = renderer.getScreenHeight();
+  const int bottomEdgeTop = screenHeight - static_cast<int>(screenHeight * BOTTOM_EDGE_BACK_GESTURE_FRAC_Y);
+  return sy >= bottomEdgeTop && ey < sy && std::abs(ey - sy) > std::abs(ex - sx);
+}
 
 bool MappedInputManager::wasBackGesture() const {
+  if (wasBottomEdgeSwipeUp()) return true;
+
   float nx = 0.0f, ny = 0.0f;
   if (!gpio.wasTouchTap(nx, ny)) return false;
   int lx = 0, ly = 0;
@@ -87,10 +104,36 @@ bool MappedInputManager::wasItemTapped(int& id) const {
 
 bool MappedInputManager::wasItemTouchedDown(int& id) const {
   float nx = 0.0f, ny = 0.0f;
-  if (!gpio.wasTouchDown(nx, ny)) return false;
-  int lx = 0, ly = 0;
-  renderer.tapToLogical(nx, ny, lx, ly);
-  return TouchRegistry::getInstance().hitTest(lx, ly, TouchRegistry::Item, id);
+  unsigned long heldMs = 0;
+  if (!gpio.isTouchTapCandidate(nx, ny, heldMs)) {
+    touchSelectTracking = false;
+    touchSelectEmitted = false;
+    touchSelectId = -1;
+    return false;
+  }
+
+  if (!touchSelectTracking) {
+    float downNx = 0.0f, downNy = 0.0f;
+    if (!gpio.wasTouchDown(downNx, downNy)) return false;
+
+    int lx = 0, ly = 0;
+    renderer.tapToLogical(downNx, downNy, lx, ly);
+    int candidateId = -1;
+    if (!TouchRegistry::getInstance().hitTest(lx, ly, TouchRegistry::Item, candidateId)) {
+      touchSelectTracking = false;
+      touchSelectEmitted = false;
+      touchSelectId = -1;
+      return false;
+    }
+    touchSelectTracking = true;
+    touchSelectEmitted = false;
+    touchSelectId = candidateId;
+  }
+
+  if (touchSelectEmitted || heldMs < TOUCH_DOWN_SELECT_DELAY_MS) return false;
+  touchSelectEmitted = true;
+  id = touchSelectId;
+  return true;
 }
 
 bool MappedInputManager::wasItemLongPressed(int& id) const {
@@ -122,6 +165,7 @@ bool MappedInputManager::wasCoverTapped(int& id) const {
 bool MappedInputManager::wasListScroll(int& index, int count, int pageItems) const {
   if (count <= 0) return false;
   if (pageItems < 1) pageItems = 1;
+  if (wasBottomEdgeSwipeUp()) return false;
   const SwipeDir swipe = wasSwipe();
   if (swipe == SwipeDir::Up) {
     index = std::min(index + pageItems, count - 1);
@@ -135,6 +179,8 @@ bool MappedInputManager::wasListScroll(int& index, int count, int pageItems) con
 }
 
 MappedInputManager::SwipeDir MappedInputManager::wasSwipe() const {
+  if (wasBottomEdgeSwipeUp()) return SwipeDir::None;
+
   float nxs = 0.0f, nys = 0.0f, nxe = 0.0f, nye = 0.0f;
   if (!gpio.wasSwipe(nxs, nys, nxe, nye)) return SwipeDir::None;
   // Map both endpoints into the logical frame so the direction follows what the