docs: small doc updates

feat(shared): a few database and argon errors

fix(shared): fix error/api visibility

feat(shared): serialize APIError

feat(shared): impl most previous api errors

Signed-off-by: Jonni Liljamo <jonni@liljamo.com>

feat(shared): setup server protocol configuration

chore(client, server, shared): add naia deps

chore: update licenses

feat: add shared, server, api