Implement queue work and listen commands

src/service/Queueables.ts

@@ -3,7 +3,8 @@ import {Singleton, Instantiable} from '../di'
 import {Queueable} from '../support/bus'
 
 /**
- * A canonical unit that resolves Queueable classes from `app/jobs`.
+ * A canonical unit that resolves Queueable classes from `app/jobs` and sets up
+ * any non-default queues.
  */
 @Singleton()
 export class Queueables extends CanonicalStatic<Queueables, Instantiable<Queueable>> {