Per a discussion on the PoC merge PR we want to update the live restore API. The current api is an "aux_path=" parameter passed to connection open. We want to change this to be a "live_restore" config with the following subconfig:

• enabled : true|false
• path : "path/to/source"
• thread_min
• thread_max

The thread_min and max parameters will dictate the allowed number of background worker threads migrating files across.

Scope:

• Add the new config items
• Create a python test that validates them for connection_open
• Update the other tests: test_live_restore and timestamp abort with the new configuration.