Configurable bad block hook in new tree

[Rjected]

ref #10405

We currently do not have a good way of inspecting block output if it is a bad block. We cannot call RPC methods like debug_executionWitness or debug_traceBlock because the block failed validation. Instead, we need a way to run a user-defined method after a block errors because it is an invalid block.

If we wanted to be exhaustive, the hook would be run after this line:

reth/crates/engine/tree/src/tree/mod.rs

Line 1797 in e27ad1a

let validation_err = error.ensure_validation_error()?;

However, then we would not be able to use the outputs of the block. Instead, we should run it if validation fails here:

reth/crates/engine/tree/src/tree/mod.rs

Line 1740 in e27ad1a

if state_root != block.state_root {

Or here:

reth/crates/engine/tree/src/tree/mod.rs

Line 1730 in e27ad1a

self.consensus.validate_block_post_execution(

It should be possible for the hook to re-execute the block with traces and get the witness + witness preimages.

[malik672]

@Rjected assign me

[Rjected]

@Rjected assign me

Thanks, but I will actually be taking this issue

[Rjected]

This was completed with #10432