Rework useAlbumStatus fetching behaviour

Beyond the wrong URL (fixed in JRM-2), useAlbumStatus has behaviour problems:

• staleTime: 0 plus refetchOnMount and refetchOnWindowFocus both set to "always" means the bookmark status refetches constantly. A 30-60s staleTime is plenty for a single-admin app
• The bookmark status endpoint is admin-only, but the hook fires for everyone, so anonymous visitors generate guaranteed 401s on pages using it. Skip the query (enabled: false) when not admin
• Errors from both queries should surface to the caller rather than being flattened away