HOST_PROTOCOLS
The versions of tcm's host protocol this tcm serves: what a library reaching tcm's runtime (React's routes, links
and data, the server API's tables and jobs) speaks, as its manifest's host says. 1 is the page's globals the
runtime sets (__TCM_BASE__, __TCM_STATIC__, __TCM_STYLESHEETS__, __TCM_TREES__, __tcmPrefetch and
__tcmUpdate) and the server host #tcm/host (createServerHost's exports).
export const HOST_PROTOCOLS: readonly number[] = [1]