- Add updateTeamMemberRole mutation for admins to change team member roles - Allow any team member (not just lead) to change project logo - Add visible "Add logo"/"Change" label under logo for discoverability - Pre-check email existence before sending magic link (show error) - Add "forgot which email" contact link on login page Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>