Post-quantum cryptography for Agent15:
the PQ/T hybrid key exchange groups of RFC 10024
(X25519MLKEM768, SecP256r1MLKEM768, SecP384r1MLKEM1024), each combining a classical
(EC or XDH) key exchange with ML-KEM (FIPS 203);
the ML-DSA (FIPS 204) signature schemes
(mldsa44, mldsa65, mldsa87).