refactor: add helper for getting nonbotuser

adds helper function in HelpThreadLifecycleListener
to get nonBot participant for database updates

Author: ankitsmt211

application/src/main/java/org/togetherjava/tjbot/features/help/HelpThreadLifecycleListener.java

@@ -1,6 +1,8 @@
 package org.togetherjava.tjbot.features.help;
 
 import net.dv8tion.jda.api.JDA;
+import net.dv8tion.jda.api.entities.Member;
+import net.dv8tion.jda.api.entities.User;
 import net.dv8tion.jda.api.entities.channel.concrete.ThreadChannel;
 import net.dv8tion.jda.api.entities.channel.forums.ForumTag;
 import net.dv8tion.jda.api.events.channel.update.ChannelUpdateAppliedTagsEvent;
@@ -83,6 +85,11 @@ private void handleThreadStatus(ThreadChannel threadChannel) {
         updateThreadStatusToActive(threadId);
     }
 
+    private boolean isNonBotParticipant(long threadOwnerId, Member threadMember) {
+        User targetUser = threadMember.getUser();
+        return threadOwnerId != targetUser.getIdLong() && !targetUser.isBot();
+    }
+
     void handleArchiveStatus(Instant closedAt, long id, JDA jda) {
         ThreadChannel threadChannel = jda.getThreadChannelById(id);
         if (threadChannel == null) {
@@ -101,8 +108,7 @@ void handleArchiveStatus(Instant closedAt, long id, JDA jda) {
         long threadOwnerId = threadChannel.getOwnerIdLong();
         int participantsExceptAuthor = (int) threadChannel.getMembers()
             .stream()
-            .filter(threadMember -> threadMember.getIdLong() != threadOwnerId)
-            .filter(m -> !m.getUser().isBot())
+            .filter(threadMember -> isNonBotParticipant(threadOwnerId, threadMember))
             .count();
 
         database.write(context -> context.update(HELP_THREADS)