Staking jobs with DRAND sorting

[shamil-gadelshin]

Description

This PR reintroduces staking jobs for all staking operations. All staking operations will be delayed until the end of the block or the next DRAND pulse. The jobs within each type (like add_stake jobs) will be sorted using the last DRAND pulse randomness.

Affected extrinsics:

• add_stake
• add_stake_limit
• remove_stake
• remove_stake_limit
• remove_stake_full_limit (creates either remove_stake or remove_stake_limit staking job)
• unstake_all
• unstake_all_alpha
• swap_stake
• move_stake
• transfer_stake

Comment: swap_stake, move_stake and transfer_stake will be likely modified using transactional::with_transaction as suggested by @gztensor

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Other (please describe):

Checklist

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have run cargo fmt and cargo clippy to ensure my code is formatted and linted correctly
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[basfroman]

Hey @shamil-gadelshin, do we want to add logic swap_stake_limit -> swap_stake_limit_aggregate in this PR?

[shamil-gadelshin]

Hey @shamil-gadelshin, do we want to add logic swap_stake_limit -> swap_stake_limit_aggregate in this PR?

Yes, we do. Thanks for the advice.

[shamil-gadelshin]

The last update contains EVM versions of staking extrinsics (ensured by custom EVM origin).

[shamil-gadelshin]

The last update contains the missing swap_stake_limit_aggregate spotted by @basfroman

[open-junius]

precompile and custom origin looks good.

[basfroman]

The last update contains the missing swap_stake_limit_aggregate spotted by @basfroman

Perfect. I'll update my PR tomorrow.
Any plan when you want to merge it?

[shamil-gadelshin]

The last update contains the missing swap_stake_limit_aggregate spotted by @basfroman

Perfect. I'll update my PR tomorrow. Any plan when you want to merge it?

We should get the results of #1955 first
So, it will be at least a couple of weeks now.