rework: rename sdbapi to api, redo data structure
fix(sdbapi): fix ctrl c & v mistake
feat(sdbapi): GameData and Action tables
feat!(sdbapi): restructure, expand user details
fix(sdbapi): name fields correctly in JSON
feat(sdbapi): add GAMESTATE_CANCELLED
WIP(sdbapi): game creation API
feat(sdbapi): replace gorm.Model with own fields
feat(sdbapi): init game management apis