chore: Added code intelligence plugins

[jamescrosswell]

See:
https://code.claude.com/docs/en/discover-plugins#code-intelligence

#skip-changelog

[github-actions]

Semver Impact of This PR

⚪ None (no version bump detected)

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 73.98%. Comparing base (2db04c4) to head (b6e2df7).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5057      +/-   ##
==========================================
- Coverage   74.01%   73.98%   -0.03%     
==========================================
  Files         499      499              
  Lines       18065    18065              
  Branches     3518     3518              
==========================================
- Hits        13370    13366       -4     
- Misses       3836     3843       +7     
+ Partials      859      856       -3     

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