adminFetch called logout() directly on 401/403 responses, which cleared
roles and caused RequireAdmin to redirect to /exchanges while users were
editing forms. Now adminFetch attempts a token refresh before failing,
and RequireAdmin tolerates a transient empty-roles state during refresh.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Hide Admin sidebar section for non-ADMIN users
- Add RequireAdmin route guard — /admin/* redirects to / for non-admin
- Move App Config from admin section to main Config tab (per-app,
visible when app selected). VIEWER sees read-only, OPERATOR+ can edit
- Hide diagram node toolbar for VIEWER (onNodeAction conditional)
- Add useIsAdmin/useCanControl helpers to centralize role checks
- Remove App Config from admin sidebar tree
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
