consolidate Accumulator, StateDiff, commitment.Updates in-memory representation - no reason to store similar things twice in ram.

[AskAlexSharov]

StateStream: it must use Erigon3 primitives (domains).

Seems it's time to introduce StateChanges type for given tx exec. Reasons:

• doCallMany using stateCache.Clone() trick to produce StateDiff type
• Accumulator and StateStream do have own format of StateChanges
• StateChangeSet - which we using for Domain unwind - using own format.
• Silkwarm (EVMOne) also producing txn-granularity state diffs.

New type - maybe must use E3 primitives (like "Domain"). I'm not sure - because maybe it must be Ethereum-specific instead of Erigon3-specific.

[awskii]

very much agreed

Btw when commitment mode is ModeDirect, commitment.Updates does not hold recent state updates, it fetches them from domains and fills Updates structure instead.
Since we can merge Updates, could add to this step generating of binary encoding of update or keep list of singular updates which, if applied one by one will provide same commitment.Update as we have in latest state.

making Updates a source of truth could have other benefits.