e1671dd71b incremented the providers for every
single transaction's sender before execution, noting the solution was fragile
but it worked for us at this time. It did not work for us at this time.
The new solution replaces `inc_providers` with direct access to the `Account`
`StorageMap` to increment the providers, achieving the desired goal, _without_
emitting an event (which is ordered, and the disparate order between building
and execution was causing mismatches of the state root).
This solution is also fragile and may also be insufficient. None of this code
exists anymore on `next` however. It just has to work sufficiently for now.
`CheckNonce` required accounts have a provider in order to even have their
nonce considered. This shims that by claiming every account has a provider at
the start of a block, if it signs a transaction.
The actual execution could presumably diverge between block building (which
sets the provider before each transaction) and execution (which sets the
providers at the start of the block). It doesn't diverge in our current
configuration and it won't be propagated to `next` (which doesn't use
`CheckNonce`).
Also uses explicit indexes for the `serai_abi::{Call, Event}` `enum`s.
Allows us to finally remove the old `serai-dex/substrate` repository _and_
should have CI pass without issue on `develop` again.
The changes made here should be trivial and maintain all prior
behavior/functionality. The most notable are to `chain_spec.rs`, in order to
still use a SCALE-encoded `GenesisConfig` (avoiding `serde_json`).
The new `FieldElement::from_u256` is sufficient to load an unreduced value. The
caller can perform the square themselves, without us explicitly supporting this
special case.
Updates the monero-oxide version used to one which no longer uses
`FieldElement::from_square` (as their use is why it was added).
flexible-transcript already had a shim to support <1.66. This was irrelevant
since flexible-transcript had a MSRV of 1.73. Due to how clunky it was, it has
been removed despite theoretically enabling an even lower MSRV.
