Enhance HardwareRfid class with detailed logging and hardware verification; update main loop to log detected RFID tags

src/main.cpp

@@ -14,6 +14,7 @@ unsigned long lastChange = 0;
 int currentConfig = 0;
 
 void onRfidTag(const hardware_SensorToControlMessage& msg) {
+    Serial.println("Callback onRfidTag triggered");
     Serial.print("RFID Tag detected: 0x");
     Serial.println(msg.payload.rfid_reading.card_id, HEX);
 }