Remove dead num_rows field from metadata.json

Add GPT-5.6 Terra and Sol to leaderboard

Add GPT-5.6 Luna to leaderboard

Derive model count from leaderboard data instead of hardcoding it

Add Claude Sonnet 5 to leaderboard

Add Claude Fable 5 and Opus 4.8 to leaderboard

Clarify full model count in leaderboard UI

Remove generated cache files

Release PerspectiveGap leaderboard Space

initial commit