test(engine): validate quote demand across different account capital

crates/fidc-core/src/engine.rs

@@ -1,5 +1,4 @@
 use std::collections::{BTreeMap, BTreeSet};
-use std::sync::Arc;
 
 use chrono::{Datelike, Duration, NaiveDate, NaiveTime};
 use serde::{Deserialize, Serialize};

crates/fidc-core/tests/decision_quote_preload.rs

@@ -174,19 +174,21 @@ fn runtime_account_dependent_quote_scope_uses_the_actual_account() {
             } else { BTreeSet::new() })
         }
         fn on_day(&mut self, ctx: &StrategyContext<'_>) -> Result<StrategyDecision, fidc_core::BacktestError> {
-            assert!(ctx.data.execution_quotes_on(ctx.execution_date, "000001.SZ").iter().any(|quote|
-                quote.timestamp.time()==t(10,17,59) && quote.last_price==10.0),
-                "actual account-dependent quote scope must be loaded before decision");
+            let loaded = ctx.data.execution_quotes_on(ctx.execution_date, "000001.SZ").iter().any(|quote|
+                quote.timestamp.time()==t(10,17,59) && quote.last_price==10.0);
+            assert_eq!(loaded, ctx.portfolio.cash() < 50_000.0,
+                "quote scope must match this account, not a fixed-capital planning account");
             Ok(StrategyDecision::default())
         }
     }
     let date = d(2026, 1, 5);
+    for initial_cash in [10_000.0, 100_000.0] {
     let broker = BrokerSimulator::new_with_execution_price(
         ChinaAShareCostModel::default(), ChinaEquityRuleHooks, PriceField::Close,
     ).with_volume_capacity_mode(fidc_core::execution_capacity::VolumeCapacityMode::SessionCapacityAudit)
         .with_matching_type(MatchingType::CurrentBarClose);
     let config = BacktestConfig {
-        initial_cash:10_000.0, benchmark_code:"000852.SH".into(),
+        initial_cash, benchmark_code:"000852.SH".into(),
         start_date:Some(date), end_date:Some(date), decision_lag_trading_days:0,
         execution_price_field:PriceField::Close,
     };
@@ -198,6 +200,7 @@ fn runtime_account_dependent_quote_scope_uses_the_actual_account() {
             trading_phase:Some("continuous".into()),
         }).collect()));
     engine.run().expect("account-dependent quote planning");
+    }
 }
 
 #[test]