ADR-039 outlined a new interface to better capture peer behaviour. Initial implementation is in #3552. The implementation is just the basic data types and does not hook up the interface to the rest of the code.

There is some follow up necessary re the extensive discussion in #3552, particularly around:

• naming
• where the errors should live (ie. consensus-domain-specific errors shouldn't be in P2P package)

Finally, we need to integrate the new interface with the rest of the code.