fix: Send push notification on bot_handoff (#7636)

Send a 'Conversation Created' push notification when the bot does a hand_off.
fixes: #7587

Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>

app/listeners/notification_listener.rb

@@ -1,4 +1,18 @@
 class NotificationListener < BaseListener
+  def conversation_bot_handoff(event)
+    conversation, account = extract_conversation_and_account(event)
+    return if conversation.pending?
+
+    conversation.inbox.members.each do |agent|
+      NotificationBuilder.new(
+        notification_type: 'conversation_creation',
+        user: agent,
+        account: account,
+        primary_actor: conversation
+      ).perform
+    end
+  end
+
   def conversation_created(event)
     conversation, account = extract_conversation_and_account(event)
     return if conversation.pending?