Prepare sample delivery UI

src-tauri/src/serial_core/model.rs

@@ -118,6 +118,10 @@ impl HudChartState {
         push_summary_point(&mut self.summary_points, value);
     }
 
+    pub fn clear_summary(&mut self) {
+        self.summary_points.clear();
+    }
+
     pub fn record_pressure_matrix(&mut self, values: &[i32]) {
         if values.is_empty() {
             return;