- POST /api/__journal__/cache/purge removes every Nitro route-cache entry
- 404 without a 32-character token or behind a proxy, 401 on a wrong bearer
token (constant-time over sha256 digests)
- routeRules keep /api/__journal__/** out of the route cache
- runtimeConfig.journal.cachePurgeToken (NUXT_JOURNAL_CACHE_PURGE_TOKEN)
- fixture API reload(); testing/purge-check.mjs proves a cached page shows
a change after a purge; the playground caches with swr 300
- journal module registers the Journal pages at journal.routes paths
- typed anonymous-GET client, html gate, SSR x-forwarded-for forwarding
- fixture API, built-server SSR smoke and git-tag install check
