fix: Restore mug callback

custom_components/ember_mug/coordinator.py

@@ -78,6 +78,10 @@ async def _async_setup(self) -> None:
                 f"An error occurred updating {self.mug.model_name}: {e=}",
             ) from e
 
+        self.mug.register_callback(
+            self._async_handle_callback,
+        )
+
     async def _async_update_data(self) -> MugData:
         """Poll the device."""
         _LOGGER.debug("Updating")
@@ -166,6 +170,12 @@ def handle_bluetooth_event(
         self.mug.ble_event_callback(service_info.device, service_info.advertisement)
         self.hass.loop.create_task(close_stale_connections(service_info.device))
 
+    @callback
+    def _async_handle_callback(self, mug_data: MugData) -> None:
+        """Handle a Bluetooth event."""
+        _LOGGER.debug("Callback called in Home Assistant")
+        self.async_set_updated_data(mug_data)
+
     def refresh_from_mug(self) -> None:
         """Update stored data from mug data and trigger entities."""
         self.async_set_updated_data(self.mug.data)