refactor(touch): centralize touch handling in DoorbellLogic

boards/esp32-s3-lcd-43/esp32-s3-lcd-43.ino

@@ -21,14 +21,18 @@ void setup() {
 }
 
 void loop() {
+    // ── Read touch ──
     TouchEvent evt = display.readTouch();
 
+    // ── State machine tick ──
     logic.update();
     display.render(logic.getScreenState());
 
+    // ── Touch handling (tap gestures) ──
     const ScreenState& st = logic.getScreenState();
+    int tile = logic.handleTouch(evt);
 
-    // Track initial hold position for hint
+    // ── Hold gesture (for silencing alerts) ──
     static int holdStartX = -1;
     static int holdStartY = -1;
 
@@ -43,7 +47,6 @@ void loop() {
             holdStartX = evt.x;
             holdStartY = evt.y;
         }
-        // Draw hint during hold (ACTIVE) or idle (IDLE)
         if(holdStartX >= 0) {
             if(h.active) {
                 display.updateHint(holdStartX, holdStartY, true);
@@ -55,21 +58,6 @@ void loop() {
         holdStartX = -1;
         holdStartY = -1;
     }
-    if(evt.pressed) {
-        if(st.screen == ScreenID::OFF) {
-            // Tap in OFF mode → wake to DASHBOARD
-            Serial.println("[TOUCH] OFF → DASHBOARD");
-            logic.setScreen(ScreenID::DASHBOARD);
-            display.setBacklight(true);
-        } else if(st.screen == ScreenID::DASHBOARD) {
-            int tile = display.dashboardTouch(evt.x, evt.y);
-            if(tile >= 0) {
-                Serial.printf("[DASH] Tile %d tapped\n", tile);
-            }
-        } else if(st.screen == ScreenID::ALERT) {
-            Serial.println("[TOUCH] ALERT tap");
-        }
-    }
 
     if(Serial.available()) {
         String cmd = Serial.readStringUntil('\n');