修正平台策略市值选股日期口径

crates/fidc-core/src/platform_expr_strategy.rs

@@ -4674,6 +4674,11 @@ impl PlatformExprStrategy {
             .data
             .previous_trading_date(decision_date, 1)
             .unwrap_or(decision_date);
+        let universe_factor_date = if self.config.current_day_precomputed_factors {
+            decision_date
+        } else {
+            previous_factor_date
+        };
         let stock_factor_date = if self.config.current_day_precomputed_factors {
             decision_date
         } else {
@@ -4686,7 +4691,7 @@ impl PlatformExprStrategy {
         } else {
             decision_date
         };
-        (selection_date, previous_factor_date, stock_factor_date)
+        (selection_date, universe_factor_date, stock_factor_date)
     }
 
     fn buy_scale(
@@ -16853,7 +16858,7 @@ mod tests {
             decision
                 .diagnostics
                 .iter()
-                .any(|item| item.contains("selection_universe_factor_date=2025-01-02")),
+                .any(|item| item.contains("selection_universe_factor_date=2025-01-03")),
             "{:?}",
             decision.diagnostics
         );