[BUG] Fetch user info and contributions properly

[RA9]

Issue Summary

Our current system only recognizes contributions from users with accounts on this platform. This means valuable contributions from unregistered users, like those who contribute to open-source projects on platforms like freeCodeCamp, might go unnoticed.

Steps to Reproduce

1. https://oss.gg/jobenjada
2. https://oss.gg/benjaminangafua

Expected behavior

For repositories using oss.gg, if contributor objects lack a corresponding user record in our system, we will attempt to verify their contributions through the repository's data. If verification fails, the user will be prompted to create an account for proper attribution.

Other information

No response

Screenshots

Desktop (please complete the following information)

- OS:
Edge
- Node:
v22.2.0
- npm:
10.7.0

[github-actions]

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[jobenjada]

should be solved :)