Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-06-14T18:23:34","request-id":"69c8b0a3-2453-4668-90c7-909354ba8c83","client-request-id":"69c8b0a3-2453-4668-90c7-909354ba8c83"}}}"