Nursery: Initial integration

StimulusProducer: syncAwaitAllSettlements should pump caller io_context

commonLibs/livoxProto1/udpCommandDemuxer.cpp

@@ -577,11 +577,11 @@ UdpCommandDemuxer::waitForCommandResponseCReq(
 	 * we will consider the command to have failed.
 	 */
 	boost::asio::io_context &ioContext = componentThread->getIoContext();
-	std::optional<std::shared_ptr<boost::asio::deadline_timer>> raceTimer;
+	boost::asio::deadline_timer raceTimer(ioContext);
 	auto timerAwaiter = adapters::boostAsio::getDeadlineTimerAReqAwaiter(
 		ioContext,
-		boost::posix_time::milliseconds(timeoutMs),
-		raceTimer);
+		raceTimer,
+		boost::posix_time::milliseconds(timeoutMs));
 	auto responseInvoker = waitForCommandResponseCReq(cmdSet, cmdId, deviceIp);
 
 	static constexpr int timerMemberSettlementIndex = 0;
@@ -598,8 +598,8 @@ UdpCommandDemuxer::waitForCommandResponseCReq(
 
 	if (timerWonFirst) {
 		cancelPendingCommandWait(cmdSet, cmdId, deviceIp);
-	} else if (raceTimer) {
-		(*raceTimer)->cancel();
+	} else {
+		raceTimer.cancel();
 	}
 
 	/** Group member adapter coros are fire-and-forget; keep group alive until