docs/multi-user-plan.md lists the system operations as admin-only, but
these routes had no role check, so any signed-in regular user could run
them in multi-user mode:
- POST /api/auth/revoke with an empty body cleared EVERY login session on
the server, every admin's included. A non-admin now revokes only their
own logins, and a named sessionToken only when it is one of theirs.
- POST /api/system/update (update and restart the server for everyone),
POST /api/system/span-displays (a window on the server's desktop),
POST /api/tunnel/qr/regenerate (clears every user's pending QR login
code) and POST /api/cleanup-state (drops every user's stale session
records) now answer 403 FORBIDDEN to a non-admin.
- GET /api/tunnel/info lists only a non-admin's own logins (it showed the
address and browser of every user's sessions).
Admins and single-user mode are unchanged. The tunnel panel's Regenerate
QR button no longer reports success for a refused request.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>