* add custom `hash` for `RootedVertexID`
There's no benefit hashing `root` since `vid` is already unique and the
"default" hash is not free - this trivially brings a small perf boost to
one of the key lookup tables in aristo_layers.
* lint
* Fix fringe case where the final `checkpoint()` must not be applied
why
If there are no `era` or `era1` files that can be imported from,
then the internal state will not be in sync with the DB state. This
would lead to overwriting the saved state block number with something
fancy. As a consequence the database becomes unusable for the next
process which will eventually fail with a state root mismatch.
* Update comment
By introducing the "shared rocksdb instance" concept to the backend, we
can remove the "piggybacking" mode , thus reducing the complexity of
database initialisation and opening the possibility of extending how
write batching works across kvt/aristo.
The change makes explicit the hidden shared state that was previously
hiding in closures and provides the first step towards simplifying the
"commit/persist" interface of coredb, preparing it for optimizations to
reduce the "layering tax" that `forked-layers` introduced.
* Update Nimbus EVM code to use the latest nim-evmc which is now on EVMC v12.1.0
* Fix copyright.
* Fix tests.
* Update to use FkLatest.
* Fix copyright and update test helper.
* renamed nimbus folder to execution_chain
* Renamed "nimbus" references to "execution_chain"
* fixed wrongly changed http reference
* delete snap types file given that it was deleted before this PR merge
* missing 'execution_chain' replacement
---------
Co-authored-by: pmmiranda <pedro.miranda@nimbus.team>
