resetUserStores() was abusing populateFromReady('', [], [], []) to clear the
space store. Its LWW timestamp logic fired an async pushLayoutToOrigin when
_layoutUpdatedAt > 0, which read a null token from localStorage (already
removed on logout, not yet set on login). The 401 response triggered
handleUnauthorized(), deleting the freshly-stored login token and forcing a
full page reload — requiring users to log in twice.
Replace with a proper reset() method that synchronously sets all state to
initial values with no LWW comparison or API side effects.
Jannis Braun
bf64c4678b