message: fix: add prepare step
diff: @@ -262,6 +262,7 @@ class App extends Generator {
  this.pjson.scripts.test = 'echo NO TESTS'
  }
  if (this.ts) {
  + this.pjson.scripts.prepare = 'rm -rf lib && tsc'
  this.pjson.scripts.prepack = 'rm -rf lib && tsc'
  }
  if (['plugin', 'multi'].includes(this.type)) {
  