fix:

未读消息数量不准确bug

nb-im/src/main/java/com/nb/im/room/ImRoomOperator.java

@@ -47,6 +47,7 @@ public class ImRoomOperator {
         this.doctorId=doctorId;
         this.supplierMaxSort=supplierMaxSort;
 
+        msgKeyFilter.expire(Duration.of(40,ChronoUnit.DAYS));
         Arrays.asList(assitId,doctorId)
                 .forEach(this::getSet);
     }