**Typeguard Triumph: Codebase Gets Crucial Update to Ensure Event Accuracy!**

**Developers Celebrate as the `isMergeFailureHubEvent` Function Correctly Identifies Merge Issues, Enhancing Project Stability and Reliability!**

Commit Details:

fix: Update isMergeFailureHubEvent typeguard to return correct type (#2578) ## Why is this change needed? The typeguard was incorrect. ## Merge Checklist - [x] PR title adheres to the [conventional commits](https://www.conventionalcommits.org/en/v1.0.0/) standard - [x] 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. <!-- start pr-codex --> --- ## PR-Codex overview This PR focuses on fixing the type guard `isMergeFailureHubEvent` to correctly identify `MergeFailureHubEvent` instances in the codebase. ### Detailed summary - Updated the return type of `isMergeFailureHubEvent` to correctly reflect `types.MergeFailureHubEvent`. - Introduced the `MergeFailureHubEvent` type in `types.ts`, which includes the `mergeFailure` property. - Ensured the type guard checks for the `MERGE_FAILURE` event type. > ✨ Ask PR-Codex anything about this PR by commenting with `/codex {your question}` <!-- end pr-codex -->