feat: tap screen to wake from screen-off mode

Tapping the touchscreen while in display mode 3 (screen off) resets
ScreenDisplayMode to 0 (auto-normal) and wakes the display.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

selfdrive/ui/qt/window.cc

@@ -171,6 +171,13 @@ bool MainWindow::eventFilter(QObject *obj, QEvent *event) {
     case QEvent::TouchEnd:
     case QEvent::MouseButtonPress:
     case QEvent::MouseMove: {
+      // CLEARPILOT: tap while screen-off (mode 3) -> wake to auto-normal (mode 0)
+      if (!device()->isAwake()) {
+        Params pmem{"/dev/shm/params"};
+        if (pmem.getInt("ScreenDisplayMode") == 3) {
+          pmem.putInt("ScreenDisplayMode", 0);
+        }
+      }
       // ignore events when device is awakened by resetInteractiveTimeout
       ignore = !device()->isAwake();
       device()->resetInteractiveTimeout(uiState()->scene.screen_timeout, uiState()->scene.screen_timeout_onroad);