Method SetSessionPresence

internal/server/server.go:858–860

SetSessionPresence attaches the live-session registry read by GET /api/v1/sessions and written by GET /api/v1/events/stream (PLAN-2558 S1). Nil-checked at both ends, so a server constructed without one still streams events — it just can't answer "who is listening?", and says so with a 503 rather tha

(p SessionPresence)

// listening?", and says so with a 503 rather than an empty list (see
// handleListSessions).
func (s *Server) SetSessionPresence(p SessionPresence) {
	s.sessionPresence = p
}

// SetRedisHealth attaches the Redis reachability prober (BUG-2727). Nil
// on a deployment with no Redis, in which case /api/v1/health/ready reports no