* fix(api): point CLI health command at /api/monitoring/health (#6677)
bin/cli/commands/health.mjs called GET /api/health, a route that was
moved to /api/monitoring/health without updating the CLI; the top-level
/api/health handler never existed on disk (only degradation/ and ping/
sub-routes). Point runHealthCommand()/runHealthComponentsCommand() at
/api/monitoring/health and read its real payload shape
(activeConnections, circuitBreakers: {open,halfOpen,closed}, memoryUsage)
instead of the old nonexistent requests/breakers/cache/memory fields.
* chore(6717): re-sync onto release tip; move CHANGELOG entry to changelog.d fragment (fragments-first)