- TestSiteCachePurgeConfig: every refused configuration names its key and
never the token; https anywhere and http to loopback are accepted
- TestSiteCachePurgeRequest: the contract request, Info and Warn lines,
the 2 s timeout, a cancelled parent context, no token in any log line
- Postgres: category create, update and delete and post create, untouched
update (D-03 bytes kept), failing and unreachable purges and delete each
purge once after the commit; failed saves send none
