[Feature] Expose Sync API to sync last N workouts

[philosowaffle]

Discussed in #691

^{Originally posted by geoffbon November 30, 2024}
I'm using Home Assistant, in conjunction with the Garmin HA app, and so have the ability to detect when I've completed a workout, at least within whatever refresh interval I set for the Garmin's app background service.

Ideally I'd like to have an automation in HA detect when an activity has finished, and call an endpoint to sync the last 1 (or n) workouts.
Or, something I can tap on my HA tablet dashboard to trigger the sync.

I see one API endpoint to sync a specific workout ID, and another endpoint to get the last n ids, but this is going to add some serious complexity to my simple automation. Is it feasible to expose an API call that just takes an integer as a URI parameter to trigger a sync of that many most recent workouts? Or even just a parameterless call that syncs the most recent workout?

With that, I can just turn off the background sync in the app, and get more timely sync when I need it.