Fix: update trainId and sent like regular TrainMatcher

src/calng/DetectorAssembler.py

@@ -344,6 +344,8 @@ class DetectorAssembler(TrainMatcher.TrainMatcher):
         self.info["timeOfFlight"] = (
             Timestamp().toTimestamp() - earliest_source_timestamp
         ) * 1000
+        self.info['sent'] += 1
+        self.info['trainId'] = train_id
         self.rate_out.update()
 
     def on_new_data(self, channel, data, meta):