feat: implement Repository Impact Analyzer (Phase 6)

[saidai-bhuvanesh]

Overview

This PR implements Phase 6: Repository Impact Analyzer to rank repositories by a weighted impact score, visualize language contribution distribution, and calculate growth rates.

Key Changes

• RepositoryImpactAnalyzer Component: Computes weighted impact scores, language contributions segment bar, and monthly growth rates.
• DashboardClient Integration: Positioned the analyzer in the overview middle column layout.
• Tests: Created RepositoryImpactAnalyzer.test.tsx to verify ranking, age calculations, and accessibility.

Fixes #6209

[vercel]

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[github-actions]

🚨 Hey @saidai-bhuvanesh, the CI Pipeline is failing on this PR and it has been marked as status:blocked.

Please fix the issues before this can be reviewed. Here's how:

1. Run checks locally before pushing:

npm run format:check   # Check Prettier formatting
npm run lint           # Run ESLint
npm run typecheck      # TypeScript type check
npm run test           # Run unit tests (Vitest)
npm run build          # Verify production build passes

2. Auto-fix common issues:

npm run format         # Auto-fix formatting with Prettier
npm run lint -- --fix  # Auto-fix lint errors where possible

3. Check the full failure log here:
👉 View CI Run

Once you push a fix and the CI passes, the status:blocked label will be removed automatically. 💪

[Aamod-Dev]

@saidai-bhuvanesh add a video to alll prs

[Aamod-Dev]

The Repository Impact Analyzer looks like a great addition to components/dashboard/DashboardClient.tsx. Unfortunately, CI is currently failing for formatting/typecheck issues. Please address the failing checks so I can approve this.