feat(open-source-rank): add open source projects ranking page

- Add new open-source-rank page with client and server components
- Implement ranking table for open source AI coding projects by GitHub stars
- Add page metadata and SEO optimization for open source ranking

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: ericyangpan