Add extra check for missing price updates

src/lib/price_notify.cpp

@@ -105,6 +105,10 @@ void onWebsocketPriceMessage(esp_websocket_event_data_t *event_data) {
   }
 }
 
+uint getLastPriceUpdate() {
+  return lastPriceUpdate;
+}
+
 uint getPrice() { return currentPrice; }
 
 void setPrice(uint newPrice) { currentPrice = newPrice; }

src/lib/price_notify.hpp

@@ -19,4 +19,5 @@ void setPrice(uint newPrice);
 
 bool isPriceNotifyConnected();
 void stopPriceNotify();
-bool getPriceNotifyInit();
+bool getPriceNotifyInit();
+uint getLastPriceUpdate();