The node-engine serves manifest-reads and says manifest-reads-changed once per link (ADR 0618 §3, §4, issue 774)

Claude-Session: https://claude.ai/code/session_01JG73KG7AfSdh6FP8VrBqCn

internal/link/run.go

@@ -218,6 +218,8 @@ func serve(ctx context.Context, link Link, m Membership, queue *Session, say Ann
 	if queue.Acts != nil {
 		if s, ok := link.(EngineSeats); ok {
 			s.ServeEngineSeat(queue.Acts.Call)
+			// And what it reads of a manifest, said once for this link (novox/hq ADR 0618 §4).
+			queue.SayReads()
 		}
 		if a, ok := link.(OperatorAsks); ok {
 			if err := a.HearWarrants(meshasks.EngineAsker(m.Node), queue.Acts.Heard); err != nil {