feat: Automated Contribution Digest

[Aditya8369]

Summary

The Automated Contribution Digest feature has been fully built and verified!

Related Issue

Closes #538

Type of Change

• Bug fix
• New feature
• Documentation update
• Refactor
• Chore / dependency update

Changes Made

• Created 20260725000001_add_profile_digests.sql to store and cache weekly/monthly digest data in Supabase.
• Created digest.ts with getContributionDigest(...) for weekly/monthly calculations (PRs merged, issues resolved, repos starred, orgs joined, achievements) and generateDigestRssXml(...) for RSS 2.0 XML feeds.

Checklist

• I was assigned to the issue before opening this PR
• My branch is up to date with main
• Code works locally and I have tested it
• No console.log left in src/
• If schema changed — both schema.sql and a new migration file are included
• If this is a UI change — I read DESIGN.md and followed the design system (colors, spacing, typography, components)
• Docs updated if needed
• PR title follows Conventional Commits format (feat:, fix:, docs:, etc.)
• This PR description is written in my own words

Summary by CodeRabbit

• New Features

  • Added weekly and monthly contribution digest pages with contribution statistics, achievements, activity timelines, and top contributions.
  • Added options to download the digest as an image, copy its link, share it on X, and access an RSS feed.
  • Added API endpoints for retrieving digest data and RSS feeds.
  • Added digest caching to improve loading performance.

• Tests

  • Added coverage for digest date ranges and RSS feed generation.

[github-actions]

Welcome to OSSfolio, @Aditya8369! 🎉

Thank you for opening this pull request and contributing to the open-source community! 🚀

To ensure a smooth review process, please make sure you have:

• Checked that your changes work locally and compile cleanly.
• Followed the guidelines outlined in CONTRIBUTING.md.
• Linked your PR to an open issue (e.g. Closes #ISSUE_NUMBER).

We will review your PR as soon as possible. Happy coding! 💻✨

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro Plus

Run ID: 7798eafb-bda9-4b8c-9cd7-923fb87e0fe9

📥 Commits

Reviewing files that changed from the base of the PR and between 90f7f7d and 5d29029.

📒 Files selected for processing (7)

• src/app/api/[username]/digest/feed/route.ts
• src/app/api/[username]/digest/route.ts
• src/app/digest/[username]/page.tsx
• src/components/digest/ContributionDigest.tsx
• src/lib/__tests__/digest.test.ts
• src/lib/digest.ts
• supabase/migrations/20260725000001_add_profile_digests.sql

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📝 Walkthrough

Walkthrough

Adds weekly and monthly contribution digest generation with Supabase caching, JSON and RSS APIs, a rendered digest page, and an interactive exportable client card.

Changes

Contribution digest

Layer / File(s)	Summary
Digest data and caching src/lib/digest.ts, supabase/migrations/..., src/lib/__tests__/digest.test.ts	Defines digest data models, computes date ranges and contribution activity, caches snapshots in profile_digests, generates RSS XML, and tests date and RSS behavior.
Digest and RSS API routes src/app/api/[username]/digest/...	Adds JSON and RSS GET handlers with period parsing, username validation, error responses, XML headers, and caching headers.
Digest page and interactive card src/app/digest/[username]/page.tsx, src/components/digest/ContributionDigest.tsx	Adds page metadata and rendering plus period switching, PNG export, sharing, link copying, RSS linking, statistics, achievements, contributions, and timeline activity display.

Estimated code review effort: 4 (Complex) | ~45 minutes

Suggested labels: enhancement, UI

Suggested reviewers: prodhosh

Poem

I’m a rabbit with a digest to share,
Weekly carrots and monthly flair.
RSS hops through the feed so bright,
Cards bloom into PNG delight.
Contributions twinkle in a timeline row—
Hop, hop, ship, and watch it grow!

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[github-actions]

🎉 Your PR just got merged, @Aditya8369 — thank you for contributing to OSSfolio!

Your work is now part of the project. Here's what to do next:

• ⭐ If you haven't already, consider giving the repo a star — it helps us grow.
• 📢 Share your contribution on LinkedIn, Twitter, or wherever you hang out. You shipped open source!
• 🔍 Browse other open issues if you want to keep contributing.

We really appreciate you taking the time. See you in the next PR! 🚀