ordian

Note that in the current form it doesn't enable slashing on Kusama, only on Westend. Still waiting for reviews.

I believe all feedback apart from `HostConfiguration` configuration and bounded cleanup is addressed. Both of these can be addressed as a follow-up. Please take another look.

The rewards are implemented in #5862

/cmd queue -c bench-bot $ pallet westend-dev runtime_parachains::disputes::slashing

/cmd queue -c bench-bot $ runtime westend-dev runtime_parachains::disputes::slashing

/cmd queue -c bench-bot $ runtime westend-dev runtime_parachains::disputes::slashing

> What about reducing the against valid slash to just one permille for now? Assuming you mean 0.1%, I've changed that. Any other changes you'd like to see in this...

Another change: [7bf295a](https://github.com/paritytech/polkadot/pull/5535/commits/7bf295ad261371c6bf07a73129399d4ed4801897) cc @eskimor.

> We've this intermediate "valid but too slow" mode discussed in #1656 > > I presume the 6x in #5951 does not bring this distinction in? > > @AlistairStewart and...

> I asked more about approval checkers, who presumably run the full 12s but what do they do if it takes more than 2s? Yes, the approval checkers approve every...