Configure Dependabot dependency grouping for npm packages

[bartveneman]

Summary

This change configures Dependabot to group related npm package updates together, reducing the number of separate pull requests created for dependency updates.

Key Changes

• Added dependency grouping configuration to .github/dependabot.yml for npm packages
• Created vite group to bundle Vitest-related dependencies:
  • @vitest/coverage-v8
  • vitest
• Created oxc group to bundle code quality tool dependencies:
  • oxlint
  • oxfmt

Implementation Details

The grouping configuration allows Dependabot to create single pull requests when multiple related dependencies in the same group have updates available, rather than creating separate PRs for each dependency. This improves maintainability by reducing notification noise and making it easier to review and merge related dependency updates together.

https://claude.ai/code/session_01S8KiVnoN9oguf5m2c9Kj7g

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.22%. Comparing base (7480e21) to head (815189d).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #181   +/-   ##
=======================================
  Coverage   95.22%   95.22%           
=======================================
  Files          16       16           
  Lines        2869     2869           
  Branches      803      803           
=======================================
  Hits         2732     2732           
  Misses        137      137           

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[codecov-commenter]

Bundle Report

Bundle size has no change ✅