- /account page: edit name/email, change password, view/revoke sessions
- PATCH /api/account: update profile or change password (verifies current)
- DELETE /api/account: revoke all other sessions
- Password change auto-revokes other sessions for security
- Username in nav now links to /account (desktop + mobile)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>