Refactor: Modularize & Test the Scraper Pipeline

[kunal-10-cloud]

Describe the bug

The generateLeaderboard.ts script has over 1000 lines, mixing configuration, API calls, and business logic into a single monolithic file. This makes the codebase difficult to maintain, hard to debug, and risky to modify without causing regressions.

To Reproduce

Steps to reproduce the behavior:

1. Open scripts/generateLeaderboard.ts.
2. Scroll through the 1000+ lines of code.
3. Observe mixed responsibilities: API calls, scoring logic, file I/O, and data transformation all in one place.
4. See that there are no dedicated unit tests for this critical logic.

Expected behavior

The code should be modular and testable.

• API interactions should be in a GitHubService.
• Scoring logic should be in a ScoringEngine.
• Types should be consistent and centralized.
• Passing unit tests should verify the logic.

Screenshots/GIFs

NA

Device Information [optional]:

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Additional context

Add any other context about the problem here.

Are you working on this issue? (Yes/No)

Yes