Whether the player holds an admin ace, as decided by the server.
One store rather than each screen asking for itself. Settings already fetched this privately to gate Developer Tools, and the home screen needs the same answer to decide whether the Administration app exists — two copies of one fact drift, and the whole point of asking the server is that there is a single authority.
It decides what the UI shows and nothing more. Every privileged action is checked again server-side, because a NUI request is not proof of intent (AGENTS.md §2.9).
A plain browser has no ace list and no server to ask, so it stands in as allowed.
Ask once per session. Safe to call from anywhere that needs the answer.
OS Service Hook for the player's admin status.