malkhut: urgency-driven maker/taker + calibrated slippage + chase + docs

MALKHUT/malkhut/tests/test_hft_cwm.py

@@ -105,6 +105,8 @@ def _params() -> FulfilmentPolicyParams:
         w_fee_quality=0.5, w_time_decay=0.3, w_policy_entropy=0.5,
         robust_tail_weight=2.0, toxic_counterparty_weight=3.0,
         low_liquidity_weight=2.0, latency_stress_weight=1.0,
+        wait_to_retry_ms=0, chase_enabled=False, chase_offset_ticks=1, chase_max_retries=0,
+        urgency_taker_threshold=0.65, urgency_taker_penalty_bps=2.0,
     )
 
 def _place(side: Side = Side.BUY, price_ticks: int = 0, qty: float = 0.10,