修正FIDC退市风控原因识别

crates/fidc-core/src/risk_control.rs

@@ -334,6 +334,9 @@ impl ChinaAShareRiskControl {
         {
             return Some(reason);
         }
+        if let Some(reason) = candidate_active_status_rejection(candidate, config, scope) {
+            return Some(reason);
+        }
         let reject_paused = match scope {
             RiskCheckScope::Selection => config.static_rules.reject_paused_selection,
             RiskCheckScope::Buy => config.static_rules.reject_paused_buy,
@@ -543,6 +546,26 @@ fn symbol_is_bjse(symbol: &str) -> bool {
     normalized.ends_with(".BJ") || normalized.ends_with(".BSE") || normalized.ends_with(".BE")
 }
 
+fn candidate_active_status_rejection(
+    candidate: &CandidateEligibility,
+    config: &FidcRiskControlConfig,
+    scope: RiskCheckScope,
+) -> Option<&'static str> {
+    let enabled = match scope {
+        RiskCheckScope::Selection => config.static_rules.reject_inactive_selection,
+        RiskCheckScope::Buy => config.static_rules.reject_inactive_buy,
+        RiskCheckScope::Sell => config.static_rules.reject_inactive_sell,
+    };
+    if !enabled {
+        return None;
+    }
+    match candidate.risk_level_code.as_deref().map(str::trim) {
+        Some("not_listed") => Some("not_listed"),
+        Some("inactive_or_delisted") => Some("inactive_or_delisted"),
+        _ => None,
+    }
+}
+
 fn missing_risk_state_fields(code: &str) -> Vec<String> {
     let Some((_, fields)) = code.split_once(':') else {
         return Vec::new();
@@ -1007,6 +1030,40 @@ mod tests {
         assert_eq!(decision.reason, "kcb");
     }
 
+    #[test]
+    fn explicit_candidate_inactive_status_is_not_treated_as_missing_risk_state() {
+        let date = d(2025, 1, 2);
+        let mut candidate = candidate(date);
+        candidate.allow_sell = true;
+        candidate.risk_level_code = Some("inactive_or_delisted".to_string());
+        let market = market(date, 6.27, 5.63);
+
+        assert_eq!(
+            ChinaAShareRiskControl::selection_rejection_reason(date, &candidate, &market, None),
+            Some("inactive_or_delisted")
+        );
+        assert_eq!(
+            ChinaAShareRiskControl::buy_rejection_reason(date, &candidate, &market, None, 6.27),
+            Some("inactive_or_delisted")
+        );
+
+        let mut relaxed = FidcRiskControlConfig::default();
+        relaxed.static_rules.reject_inactive_selection = false;
+        relaxed.static_rules.reject_inactive_buy = false;
+        assert_eq!(
+            ChinaAShareRiskControl::selection_rejection_reason_with_config(
+                date, &candidate, &market, None, &relaxed
+            ),
+            None
+        );
+        assert_eq!(
+            ChinaAShareRiskControl::buy_rejection_reason_with_config(
+                date, &candidate, &market, None, 6.27, &relaxed
+            ),
+            None
+        );
+    }
+
     #[test]
     fn missing_risk_state_rejects_selection_and_buy_when_static_filters_enabled() {
         let date = d(2025, 1, 2);