Encode converts aida-substate into protobuf-encoded message.

Berlin hard fork introduced optional access list.

Cancun hard fork introduced optional tx blob.

London hard fork introduced optional dynamic fee market.

Enum value maps for Substate_TxMessage_TxType.

Enum value maps for Substate_TxMessage_TxType.

AccessList from TXTYPE_ACCESSLIST nil for tx types prior to TXTYPE_ACCESSLIST.