The standby read path currently treats the resolver's answer not as final. If the read position resolves to a different segment than the connected one, the request is still sent to the connected segment which can lead to silently skipping a sealed segment's unapplied entries

Force reconnect on mismatch and add an upper bound. Also add a struct to track the ways in which we can reconnect (from our LSN known, stream from start etc). Supersedes _shouldReadFromSegmentStart

[Patch build here](https://spruce.corp.mongodb.com/version/6a79f32f6ee1c80007ce269c/tasks?sorts=STATUS%3AASC%3BBASE_STATUS%3ADESC)
10 green Chaos patch runs 🟢