How to Automatically Move Leads Marked Interested in Smartlead to HubSpot Pipeline?

Hey guys i was building these three things:

1.
Whenever I mark a lead as Interested in Smartlead, it should automatically move into the pipeline in HubSpot.
2.
I also want a HubSpot property that shows how many times the lead has been added to campaigns and which specific campaigns they are part of.(This is done-- from the place where i am importing this lead-- added a column there-- and it solved this one
3.
We need to create one claude agent that will plug into smartleads. Everytime any person responds back, it should study the brand, identify gaps on the listing, create and email draft and share in Slack for Approval and then send.( This is also done)

So i basically need help with the 1st problem where i am struggling, i need a suggestion how i can solve this-- Thanks in advance