Summary

• Fetch repository creation contributions from GitHub's contributionsCollection
• Merge repository creation dates into the daily contribution map without double-counting days already counted by the calendar
• Add regression coverage for a repo-creation-only day preserving the daily streak

Closes #919

Tests

• TOKEN=dummy ./vendor/bin/phpunit --testdox tests/StatsTest.php --filter testRepositoryCreationContribution
• php -l src/stats.php
• php -l tests/StatsTest.php
• npx prettier --check src/stats.php tests/StatsTest.php
• git diff --check

Notes

• repositoryContributions(first: 100) covers up to 100 created repositories within a queried year. Handling more would require paginating repositoryContributions in the contribution graph fetch path.