1. Server to Cloud migration
Your Agile Poker app will be migrated automatically if you follow Atlassian's Cloud migration guide. Agile Poker app will appear in Jira Cloud Migration Assistant to allow a smooth transition form Server to Cloud.
Agile Poker specific data like estimation configuration is not a part of the migration process. All estimates for completed estimation sessions are migrated as part of Jira data.
Automatic migration availability depends on Atlassian enabling app migration in Jira Cloud Migration Assistant.