Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-02-23T23:46:04","request-id":"debb1827-87a4-422e-8c04-93e4821db01f","client-request-id":"debb1827-87a4-422e-8c04-93e4821db01f"}}}"