Subgame & ranges

Range materialization and Bayesian updates, toy subgame solvers (polarized river, minimax regret sizing, push/fold thresholds), clairvoyant regret, and multiway independence diagnostics.

Villain ranges: Float64Array(1326) or SparseRangeSpec. See Range equity (exact) and Tournament, runouts, and bots.

Export	Summary
materializeVillainRangeAfterBlockers	Live combos, weight sum, entropy after blockers.
bayesianRangeUpdateFromAction	Heuristic range update from villain action.
solveRiverPolarizedIndifferenceBet	Polarized river bet at MDF indifference.
solveStageMinimaxRegretBet	Minimax-regret bet size vs fold/call model.
exactInformationRegretVsClairvoyant	Clairvoyant regret vs weighted range.
multiwayEquityIndependenceGap	Exact vs independence-approximation equity gap.
solveSymmetricPushFoldThreshold	Symmetric push/fold breakeven equity.
pushFoldSymmetricEv	Symmetric push/fold chip EV.
pushFoldSymmetricBreakevenEquity	Breakeven equity for symmetric jam.
openRaiseBreakevenFoldEquity	Fold equity needed to profit open-raising air.
callOrFoldChipEvDelta	Call EV minus fold EV (0).
normalizedRangeWeightSum	Sum of range weights.