Users of live restore depend on statistics being enabled to know when live restore has completed, but it's possible to start wiredtiger with statistics disabled (we default to none), or worse with statistics=clear which will reset the live restore state on each access by a cursor.

We need to add configuration logic that checks statistics is set to one of (fast, all) when live restore is enabled. We need to check this behaviour on start up, and when either stats or live restore are reconfigured.