message: Add type to classTraits
diff: import { dice } from '../src/dice'
  -export const classTraits = {
  +type ClassName = 'barbarian' | 'bard' | 'cleric' | 'druid' | 'fighter' | 'monk' | 'paladin' | 'ranger' | 'rogue' | 'sorcerer' | 'warlock' | 'wizard'
  +
  +interface ClassTrait {
  + professionOrigin: string[]
  + background: string[]
  + weapon: string[]
  + wealth(): number
  +}
  +
  +export const classTraits: Record<ClassName, ClassTrait> = {
  barbarian: {
  professionOrigin: [
  'My devotion to my people lifted me in battle, and I learned to control my bloodlust.',
  