The VPS asset the device is localized to.
Identifies the asset behind the most recent successful visual localization. Both IDs name the
site's VPS map asset: [assetId] is never the ID of a mesh, splat, or other non-VPS asset of the
site.
Neither ID is human readable. Resolve names through the sites API: SitesSession.requestSiteInfo
and SitesSession.requestAssetInfo.