Parse an authorization request by extracting DPoP and client attestation
information from HTTP request headers.
Important: This function performs extraction and basic format validation
but does NOT verify cryptographic signatures. JWT signature verification
should be performed separately using the appropriate verification functions.
Parse an authorization request by extracting DPoP and client attestation information from HTTP request headers.
Important: This function performs extraction and basic format validation but does NOT verify cryptographic signatures. JWT signature verification should be performed separately using the appropriate verification functions.