Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-10-19T15:07:34","request-id":"840f8fb8-be55-487b-abde-c0c33d08f3bf","client-request-id":"840f8fb8-be55-487b-abde-c0c33d08f3bf"}}}"