Introduce a custom enum for ExEx WAL errors

[shekhirin]

Describe the feature

Currently, we use eyre::Result for errors in ExEx WAL, but we can do better with a custom thiserror-powered enum that has rich variants (with tuples/structs) to pass additional fields such as file_id.

https://github.com/search?q=repo:paradigmxyz/reth+path:crates/exex/exex/src/wal+eyre&type=code

Additional context

No response

[jancris100]

can you assign this to me?

[shekhirin]

hey @jancris100, are you still working on this? Let me know if you need any help

[caglaryucekaya]

Hey @shekhirin, I'd like to work on this since he seems to be not responding

[shekhirin]

@caglaryucekaya assigned! let me know if you have any questions :)

[caglaryucekaya]

Should I still use eyre::Result and return the custom error as part of it, or not use the eyre::Result at all?

[shekhirin]

@caglaryucekaya we want a custom error enum that will be returned from functions as Result<_, WalError>