The current Updater fetches contributionCalendar { totalContributions } for every year of a user's history. This forces GitHub to compute the daily contribution graph, leading to frequent 502 Bad Gateway errors and slow performance.

Optimization:
Replace contributionCalendar with the lightweight aggregated counters available directly on contributionsCollection:

• totalCommitContributions
• totalIssueContributions
• totalPullRequestContributions
• totalPullRequestReviewContributions
• restrictedContributionsCount (optional check)

Logic:
Yearly Total = Sum(Counters)

Benefits:

1. Stability: Drastically reduces load on GitHub's GraphQL API, eliminating 502 errors.
2. Performance: Significantly faster data fetching.
3. Future-Proofing: Opens the door to tracking "Commits vs. Total" metrics separately in the future.