fix(discovery): tie-aware rule-match scoring — accept any tied-best compliant prediction

feat(discovery): pure discoveryPredCorrect (rule-match scoring) + tests

engine: add runCellAsync (awaitable focalPolicy/inducer) with exact-parity test vs runCell

end on resolved-temptation count + score-gap pressure gauge; rounds-parametrized ceilings

redesign: incentive-compatible metric + factorial RxGxE + peer rule-following MCTS + swap + fidelity fixes (Discovery/opponent-invariance/C*)