Improve parallelism by solving most difficult deals first#216

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tameware wants to merge 16 commits into

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tameware:opus-improve-parallelism

Commits on Jun 28, 2026

Fix signed->unsigned cast bugs that corrupted move ordering and pruning

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cursoragent
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Dispatch hardest boards first to shorten parallel calc tail

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Skip hardest-first dispatch for single-deal calc

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Commits on Jun 29, 2026

Validate order is a permutation in parallel_all_boards_n

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cursoragent
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Commits on Jul 17, 2026