修复延迟执行选股风控语义

crates/fidc-core/src/universe.rs

@@ -50,15 +50,20 @@ pub struct SelectionContext<'a> {
     pub data: &'a DataSet,
     pub dynamic_universe: Option<&'a BTreeSet<String>>,
     pub risk_config: Option<&'a FidcRiskControlConfig>,
+    pub defer_selection_risk: bool,
 }
 
 impl SelectionContext<'_> {
     fn eligible_universe(&self) -> Vec<EligibleUniverseSnapshot> {
-        let eligible = match self.risk_config {
-            Some(risk_config) => self
-                .data
-                .eligible_universe_on_with_risk_config(self.decision_date, risk_config),
-            None => self.data.eligible_universe_on(self.decision_date).to_vec(),
+        let eligible = if self.defer_selection_risk {
+            self.data.fundamental_universe_on(self.decision_date)
+        } else {
+            match self.risk_config {
+                Some(risk_config) => self
+                    .data
+                    .eligible_universe_on_with_risk_config(self.decision_date, risk_config),
+                None => self.data.eligible_universe_on(self.decision_date).to_vec(),
+            }
         };
         match self.dynamic_universe {
             Some(symbols) if !symbols.is_empty() => eligible
@@ -70,6 +75,9 @@ impl SelectionContext<'_> {
     }
 
     fn selection_risk_decisions(&self) -> Vec<FidcRiskDecisionAudit> {
+        if self.defer_selection_risk {
+            return Vec::new();
+        }
         let default_risk_config;
         let risk_config = match self.risk_config {
             Some(value) => value,
@@ -403,6 +411,7 @@ mod tests {
             data: &data,
             dynamic_universe: None,
             risk_config: Some(&FidcRiskControlConfig::default()),
+            defer_selection_risk: false,
         });
 
         let rules = diagnostics