4ffc8a601f
Planner: Decoupled UCB/UCT simultaneous-move MCTS (sm_mcts.py), compact action space (action_menu.py), planner alternatives (alternatives.py). Counterparties: 4+ adversarial agent ecology — ToxicTaker, LatencyArb, MarketMaker, NoiseTrader + extended: LiquidationFlow, WhaleOrder, MomentumFollower, SpoofDetector, QueueChaser.