message: Add npcs to story variables definition
diff: +import { NPC } from '../lib/npc-generation/_common'
  +
  /*******************************************************************************
  SugarCube overrides.
  *******************************************************************************/
  @@ -16,6 +18,7 @@ declare module 'twine-sugarcube' {
  * TODO: Fill in these types.
  */
  export interface SugarCubeStoryVariables {
  + npcs: Record<string, NPC>
  [key: string]: unknown
  }
  }
  