Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2025-07-14T23:35:38","request-id":"2a2c9628-ba5e-41e2-b58a-ca9294231a89","client-request-id":"2a2c9628-ba5e-41e2-b58a-ca9294231a89"}}}"