src/node/plugin.ts/PluginAPI/mount
class PluginAPI:  public mount(r: express.Router, wr: express.Router): void {
    for (const [, p] of this.plugins) {
      if (p.router) {
        r.use(`${p.routerPath}`, p.router())
      }
      if (p.wsRouter) {
        wr.use(`${p.routerPath}`, (p.wsRouter() as WebsocketRouter).router)
      }
    }
  }