support runtime.ServeMux opts for grpc-gateway

pkg/ambient/ambient.go

@@ -318,6 +318,18 @@ func (aw *AmbientWeather) enrichStation(update *weather.WeatherUpdate) {
 	}
 }
 
+func (aw *AmbientWeather) GetLogger() *zerolog.Logger {
+	aw.RLock()
+	defer aw.RUnlock()
+	return aw.l
+}
+
+func (aw *AmbientWeather) GetCtx() context.Context {
+	aw.RLock()
+	defer aw.RUnlock()
+	return aw.appCtx
+}
+
 func (aw *AmbientWeather) GetRecorder() *recorder.WeatherRecorder {
 	aw.RLock()
 	defer aw.RUnlock()