删除隐藏兼容模式并统一撮合风控

crates/fidc-core/tests/core_rules.rs

@@ -63,13 +63,20 @@ fn china_cost_model_applies_minimum_commission_and_stamp_tax() {
     assert_eq!(buy.stamp_tax, 0.0);
 
     let sell = model.calculate(d(2023, 8, 25), OrderSide::Sell, 100_000.0);
-    assert!((sell.commission - 80.0).abs() < 1e-9);
+    assert!((sell.commission - 30.0).abs() < 1e-9);
     assert!((sell.stamp_tax - 100.0).abs() < 1e-9);
 }
 
 #[test]
-fn aiquant_cost_model_matches_alv_run_options() {
-    let model = ChinaAShareCostModel::aiquant_default();
+fn configured_cost_model_matches_declared_run_options() {
+    let model =
+        ChinaAShareCostModel::from_trading_constraints(fidc_core::TradingConstraintConfig {
+            commission_rate: 0.0003,
+            minimum_commission: 5.0,
+            stamp_tax_rate_before_change: 0.0005,
+            stamp_tax_rate_after_change: 0.0005,
+            ..fidc_core::TradingConstraintConfig::default()
+        });
 
     let buy = model.calculate(d(2026, 5, 19), OrderSide::Buy, 49_978.84);
     assert!((buy.commission - 14.993652).abs() < 1e-9);
@@ -130,7 +137,7 @@ fn china_cost_model_tracks_minimum_commission_per_order_id() {
 
     assert!((first.commission - 5.0).abs() < 1e-9);
     assert!(second.commission.abs() < 1e-9);
-    assert!((third.commission - 12.6).abs() < 1e-9);
+    assert!((third.commission - 1.6).abs() < 1e-9);
     assert!((another_order.commission - 5.0).abs() < 1e-9);
 }
 

crates/fidc-core/tests/corporate_actions.rs

@@ -368,7 +368,11 @@ fn engine_reinvests_dividend_receivable_in_round_lots() {
             first_date: buy_date,
         },
         BrokerSimulator::new_with_execution_price(
-            ChinaAShareCostModel::default(),
+            ChinaAShareCostModel {
+                commission_rate: 0.0008,
+                minimum_commission: 0.0,
+                ..ChinaAShareCostModel::default()
+            },
             ChinaEquityRuleHooks::default(),
             PriceField::Open,
         ),

crates/fidc-core/tests/explicit_order_flow.rs

@@ -3321,7 +3321,8 @@ fn rebalance_optimizer_skips_unfunded_buy_when_existing_position_cannot_sell() {
             .order_events
             .iter()
             .all(|event| !(event.symbol == "000002.SZ" && event.side == fidc_core::OrderSide::Buy)),
-        "optimizer should skip unfunded rebalance buy when locked holding cannot be sold"
+        "optimizer should skip unfunded rebalance buy when locked holding cannot be sold: {:#?}",
+        report
     );
     assert_eq!(
         portfolio