final touches for beta skymoney (at least i think)

web/src/hooks/useAuthSession.ts

@@ -0,0 +1,16 @@
+import { useQuery, type UseQueryOptions } from "@tanstack/react-query";
+import { http } from "../api/http";
+
+type SessionResponse = { ok: true; userId: string; email: string | null; displayName: string | null };
+
+type Options = Omit<UseQueryOptions<SessionResponse, Error>, "queryKey" | "queryFn">;
+
+export function useAuthSession(options?: Options) {
+  return useQuery<SessionResponse, Error>({
+    queryKey: ["auth", "session"],
+    queryFn: async () =>
+      http<SessionResponse>("/auth/session", { skipAuthRedirect: true }),
+    retry: false,
+    ...options,
+  });
+}