Google assistant storage of connected agents (#29158)

* Make async_report_state take agent_user_id

* Attempt to store synced agents

* Drop now not needed initialization

* Make sure cloud uses the all sync on changed preferences

* Some more places to use all version of sync

* Get the agent_user_id from the request context if available

* Minor cleanup

* Remove the old fixed agent_user_id for cloud

Instead pass along cloud_user where appropriate.

* async_delay_save takes a function

* Adjust test for delayed store

* Remove unused save function

* Add login check.

homeassistant/components/cloud/client.py

@@ -101,6 +101,7 @@ class CloudClient(Interface):
             self._google_config = google_config.CloudGoogleConfig(
                 self._hass, self.google_user_config, cloud_user, self._prefs, self.cloud
             )
+            await self._google_config.async_initialize()
 
         return self._google_config