BREAKTHROUGH IN ERROR DETECTION: MESSAGE HASH ADDED TO SYNC HEALTH ERRORS

New commit enhances troubleshooting capabilities by linking message hashes to resolve "message already merged" issues, paving the way for clearer data insights!

Commit Details:

chore: add message hash to sync health errors (#2294) We need the message hash to understand the "message already merged errors". Would be useful to search for the hash to understand when the message got merged initially. ## Merge Checklist _Choose all relevant options below by adding an `x` now or at any time before submitting for review_ - [x] PR title adheres to the [conventional commits](https://www.conventionalcommits.org/en/v1.0.0/) standard - [ ] PR has a [changeset](https://github.com/farcasterxyz/hub-monorepo/blob/main/CONTRIBUTING.md#35-adding-changesets) - [x] PR has been tagged with a change label(s) (i.e. documentation, feature, bugfix, or chore) - [ ] PR includes [documentation](https://github.com/farcasterxyz/hub-monorepo/blob/main/CONTRIBUTING.md#32-writing-docs) if necessary.