修正调仓持仓报价预加载语义

crates/fidc-core/tests/decision_quote_preload.rs

@@ -52,7 +52,7 @@ impl Strategy for DecisionQuoteReader {
             .data
             .execution_quotes_on(ctx.execution_date, "000001.SZ")
             .iter()
-            .any(|quote| quote.timestamp.time() == t(10, 40, 0) && quote.last_price == 11.0);
+            .any(|quote| quote.timestamp.time() == t(10, 39, 59) && quote.last_price == 11.0);
         assert!(
             quote_loaded_before_decision,
             "engine must load declared decision quote before strategy.on_day"
@@ -199,6 +199,10 @@ fn engine_preloads_declared_decision_quotes_for_current_positions() {
     };
     let mut engine = BacktestEngine::new(data, DecisionQuoteReader::default(), broker, config)
         .with_execution_quote_loader(move |request| {
+            assert_eq!(
+                request.end_time, None,
+                "decision quote preload must request latest quote at or before start_time"
+            );
             Ok(request
                 .symbols
                 .into_iter()
@@ -207,7 +211,7 @@ fn engine_preloads_declared_decision_quotes_for_current_positions() {
                     symbol,
                     timestamp: request
                         .date
-                        .and_time(request.start_time.unwrap_or(t(10, 40, 0))),
+                        .and_time(t(10, 39, 59)),
                     last_price: if request.date == second { 11.0 } else { 10.0 },
                     bid1: if request.date == second { 11.0 } else { 10.0 },
                     ask1: if request.date == second { 11.0 } else { 10.0 },