Update fetch script to upload parquet dataset to HuggingFace

Add UV script metadata to fetch_api_only.py

Fetch leaderboard data from private HuggingFace dataset

Clean up repository - remove unused files

Add SWE-bench Pro and EvasionBench data

Fix: Use safetensors.total for accurate parameter counts

Add model size range slider filter

Add official benchmarks leaderboard with OAuth support