Define canonical transaction

[devendran-m]

Define the actual canonical transaction as something like this;

pub struct TransactionV1 {
    hash: Digest,

    chain_name: String,
    protocol_version: ProtocolVersion,
    timestamp: Timestamp,
    ttl: TimeDiff,
    initiator_addr: InitiatorAddr,

    fields: BTreeMap<u16, Bytes>,

    approvals: BTreeSet<Approval>,
    #[cfg_attr(any(all(feature = "std", feature = "once_cell"), test), serde(skip))]
    #[cfg_attr(
        all(any(feature = "once_cell", test), feature = "datasize"),
        data_size(skip)
    )]
    #[cfg(any(feature = "once_cell", test))]
    is_verified: OnceCell<Result<(), InvalidTransaction>>,

[devendran-m]

Hi @zajko ,

As advised by Ed in the L1 daily on 16th Sep, sharing the brief note here for your reference;

• Add a bullet for type changes in the changelog.
• Retrofill bullet points for block structure transformations (including new variant).
• Ensure all changes/updates to types are reflected in the changelog.