Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-01-19T17:29:10","request-id":"f4007ded-99ef-4819-8340-efe74e6ded4f","client-request-id":"f4007ded-99ef-4819-8340-efe74e6ded4f"}}}"