Add third forecaster spot-check, give research-page hero a card background

Upgrade five more player portraits to clear Commons face crops

Clean up player award cards: portraits, tiered meters, calmer panels

Fix audit findings: verifiable knockout provenance, artifact-derived benchmark, knockout live forecasts

Refresh knockout provenance

Refresh knockout bracket state

Upgrade World Cup app with live knockout predictions

Restore World Cup results and prediction scorecard

Redesign World Cup forecaster for Build Small