* feat: update workspace member management in activation handler
- Changed source of truth for active members to use payload.MembersList from the API.
- Implemented role update logic for existing users, adjusting seat counts based on role changes.
- Ensured that users removed from the workspace are deleted from UserLicense, enhancing membership accuracy.
* refactor: enhance workspace member activation logic
- Updated the source of truth for added users to use payload.MembersList for consistency.
- Improved role update logic for existing users, ensuring accurate seat count adjustments based on user activity status.
- Streamlined the activation of inactive users based on available seats, enhancing membership management efficiency.
