- server/lib/siteCachePurge.ts: authorizeSitePurge, purgeSiteRouteCache,
parseSitePurgeEvent (kinds: lower-case letters and underscores)
- the route reads runtimeConfig.siteCache.purgeToken
(NUXT_SITE_CACHE_PURGE_TOKEN), 404 when off or proxied, 401 unauthorized
- route rule '/api/__site__/**': { cache: false }
- sitePurge specs with sha256 pins of the two shared files
- version 0.2.0