PKI CLI reference

Subcommand	Purpose
confium pki parse-cert	Parse an X.509 certificate (DER or PEM)
confium pki verify	Verify a certificate chain (leaf + intermediates + anchor)
confium pki composite-sign	Sign with classical + PQ components in one envelope

Related: confium verify cert-chain mirrors pki verify under the Verify product. Run confium pki --help for the full argument list. Product docs: https://www.confium.org/pki/. API reference: docs.rs/confium-pki.