Media health LiveView.

Shows how many files are where, and what, their library's storage profile and variant set want (V205), and lists the ones the reconciler (Storage.Workers.ReconcileJob) has not brought up to date yet: copies missing or on buckets the profile no longer uses, sizes missing or made from an older spec. The reconciler runs by itself, a run per library (Storage.Jobs.Reconcile, watched on Admin → Jobs and on the Libraries tab); "Reconcile now" only starts those runs sooner.