DASpec:genericize synonymous param parsing

stimBuffApis/livoxGen1/pcloudStimulusProducer.cpp

@@ -110,7 +110,6 @@ void produceStimFrameAck(void)
 static int parseHistbuffMs(
 	const std::shared_ptr<device::DeviceAttachmentSpec>& spec)
 {
-	int histbuffMs = 30000;  // Default: 30000ms (30 seconds)
 	const std::vector<std::string> histbuffParamNames = {
 		"history-buffer-duration-ms",
 		"hist-buff-duration-ms",
@@ -118,23 +117,8 @@ static int parseHistbuffMs(
 		"histbuff-ms"
 	};
 
-	// Loop through synonyms in reverse order; lattermost synonym wins.
-	for (auto synIt = histbuffParamNames.rbegin();
-		synIt != histbuffParamNames.rend(); ++synIt)
-	{
-		const auto& paramName = *synIt;
-		try {
-			histbuffMs = device::DeviceAttachmentSpec
-				::parseRequiredParamAsInt(
-					spec->qualeIfaceApiParams, paramName);
-			break; // Found and parsed successfully
-		} catch (const std::exception&) {
-			// Parameter not found or parse error, continue to next synonym
-			continue;
-		}
-	}
-
-	return histbuffMs;
+	return device::DeviceAttachmentSpec::parseOptionalParamAsIntWithSynonyms(
+		spec->qualeIfaceApiParams, histbuffParamNames, 30000);
 }
 
 std::shared_ptr<StimulusBuffer>