fix: validate that fid on username add message matches fid on ens proof

[aditiharini]

This fixes a bug which allows an users to assume an arbitrary user's ens name as their own.

Merge Checklist

Choose all relevant options below by adding an x now or at any time before submitting for review

• PR title adheres to the conventional commits standard
• PR has a changeset
• PR has been tagged with a change label(s) (i.e. documentation, feature, bugfix, or chore)
• PR includes documentation if necessary.

---

PR-Codex overview

This PR focuses on enhancing the validation of fid in user data messages to ensure that it matches the fid associated with the username proof, specifically for fname and ENS types.

Detailed summary

• Updated validation logic in index.ts to check if fid matches for fname and ENS username types.
• Added error handling for invalid username types.
• Introduced a new test case in index.test.ts to verify failure when fid on message does not match fid on ENS name proof.

✨ Ask PR-Codex anything about this PR by commenting with /codex {your question}

[changeset-bot]

🦋 Changeset detected

Latest commit: 205a357

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@farcaster/hubble	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
hub-monorepo	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Oct 24, 2024 6:14pm

[codecov]

Codecov Report

Attention: Patch coverage is 85.71429% with 1 line in your changes missing coverage. Please review.

Project coverage is 44.19%. Comparing base (1880070) to head (205a357).
Report is 407 commits behind head on main.

Files with missing lines	Patch %	Lines
apps/hubble/src/storage/engine/index.ts	85.71%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #2378       +/-   ##
===========================================
- Coverage   74.05%   44.19%   -29.87%     
===========================================
  Files          99      146       +47     
  Lines        9425    26208    +16783     
  Branches     2097     9364     +7267     
===========================================
+ Hits         6980    11583     +4603     
- Misses       2327    12832    +10505     
- Partials      118     1793     +1675     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.