[Feature]: gpd leaderboard to enable self-reporting scores and enable benchmarking

[hvgazula]

Description

A shared leaderboard to self-report scores across different agents solving the same problem.

Use Case

• Benchmarking different agent strategies on the same problem
• Running internal competitions between different AI models/approaches
• Creating shared challenges (like Kaggle, but for AI agents)

Proposed Solution

No response

Alternatives Considered

No response

[quantAsh]

I ve built out most of this. would be happy to contribute