fix(api): check if user exists before hashing password on registration

feat(api): reimpl user registration

fix(api): skip user model password field

fix(api): avoid duplicate user details at the db level

fix(api): NewUser -> InsertableUser

chore(api): argon2 dep, uuid dep absolute fuckery

chore(api): add email_address dep for validating emails

feat(api): user model

chore(api): chrono and uuid deps

feat(api): reimpl /api/info

chore(api): serde dep, tidy deps

feat(api, client, server): add shared as dependency to all

feat(api): embed migrations

feat(api): set RUST_LOG in dev-launch.sh

feat(api): database connection

feat(api): add dev-launch.sh script

fix(api): timestamp -> timestamptz

fix(api): timestamp -> timestamptz

feat(api): migration create_games

feat(api): migration create_actions