Longer Cooldown, Smarter Grader

Race System

• Submission cooldown is now 18 hours (was 12), slowing re-submission churn in the eligible field.

Validator

• The grader now recognizes curated cross-key attribute aliases, recovering correct-answer credit when a product lists the same attribute under a different key.
• Inference-token verification retries with exponential backoff, reducing spurious evaluation failures during provider hiccups.