Why: store.me was only written by the forced-change gate's onDone
(refreshMe sole caller), so after any page reload or a normal
re-login me stayed null and the admin menu (me?.isAdmin gate in
TaskSidebar/AdminZone) vanished permanently - reported repeatedly as
the user-management page becoming unavailable.
Evidence: vitest 100/100 pass and tsc+vite build clean after the
change; grep shows refreshMe had exactly one call site before
(App.tsx mustchange onDone).
Impact: admins keep the system-management entry across reloads and
normal logins; no behavior change for non-admins (me loads but
isAdmin=false).
Refs: dev task card feature/fe-me-refresh; companion Dev-repo pin
bump.
weichen