[WIP] Rankings Backend (Go)

Rankings Project Structure

Frontend (React/ViteJS):
- Live: https://rankings.polinetwork.org/
- Repo: https://github.com/polinetworkorg/Rankings
Backend: (newer is first)
- Go: this repo (WIP)
- C#: https://github.com/PoliNetworkOrg/GraduatorieScriptCSharp (stable)
- Py: https://github.com/PoliNetworkOrg/GraduatorieScript (deprecated)
Data: https://github.com/PoliNetworkOrg/RankingsDati