TBD after we figure out how to handle social proof in `identifier` field. For now- Identity integration tests
- Manually called `Get{Inbound,Outbound}KeysForUser` RPCs and made sure they're returning correct response format
- For wallet users, I wasn't able to properly test the inbound keys RPC fails because of https://linear.app/comm/issue/ENG-6480/store-social proof checks.-in-users-table#comment-2176dde1