Clojurians Log v2

set the channel topic: For bug report, please file an issue at https://github.com/datalevin/datalevin

Master branch now has WAL mode, which is the default for Datalog store. KV store needs to enable WAL explicitly. There are two durability profiles in WAL mode: :strict is the default, and :relaxed can be set to get better write throughput. The main benefits is that now concurrent writers increase write throughput. Doc: https://github.com/datalevin/datalevin/blob/master/doc/wal.md