Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-07-30T17:24:23","request-id":"8e1bd2be-600e-44dc-8879-534011d9927d","client-request-id":"8e1bd2be-600e-44dc-8879-534011d9927d"}}}"