add recommend trace id

recommend-server-service/src/main/java/com/tzld/piaoquan/recommend/server/service/RecommendService.java

@@ -173,6 +173,7 @@ public class RecommendService {
                 Map<String, String> map = new HashMap<>();
 
                 map.put("traceId", String.valueOf(TraceUtils.currentTraceId()));
+                map.put("recommendTraceId", Strings.nullToEmpty(request.getRecommendTraceId()));
 
                 // TODO user
                 map.put("sessionId", request.getSessionId());