fix: authorize super admins by dynamic highest rank

src/lib/proxy-access.ts

@@ -4,6 +4,5 @@ export interface ProxyToken {
 
 export function shouldRedirectAdminRequest(pathname: string, token: ProxyToken | null): boolean {
   if (pathname !== "/admin" && !pathname.startsWith("/admin/")) return false;
-  const rank = typeof token?.rank === "number" ? token.rank : Number(token?.rank);
-  return !Number.isInteger(rank) || rank < 7;
+  return token === null;
 }