working on this was really hard, so i'm making simple things first.
removed almost everything except bare buffer changes, and not even done
in a smart way, but should be a working PoC? now trying to make a
working client to test it out and actually work on a real prototype
Added a "session" stage, to auth and connect to a Workspace.
Added workspace-level operations (sync, get buffers list...).
Added buffer-level sync operations (push, pull).
