feat(stock-pool): unify target execution, durable intent state and ETF rules

crates/fidc-core/src/portfolio.rs

@@ -676,6 +676,7 @@ pub struct PortfolioState {
     cash_receivables: Vec<CashReceivable>,
     pending_cash_flows: Vec<PendingCashFlow>,
     day_sold_symbols: BTreeSet<String>,
+    stock_pool_states: std::collections::BTreeMap<String,crate::stock_pool_state::StockPoolExecutionState>,
 }
 
 #[derive(Debug, Clone)]
@@ -712,6 +713,7 @@ impl PortfolioState {
             cash_receivables: Vec::new(),
             pending_cash_flows: Vec::new(),
             day_sold_symbols: BTreeSet::new(),
+            stock_pool_states: std::collections::BTreeMap::new(),
         }
     }
 
@@ -721,6 +723,15 @@ impl PortfolioState {
         self.initial_cash.to_f64()
     }
 
+    pub(crate) fn stock_pool_execution_state(&self,pool_id:&str)->crate::stock_pool_state::StockPoolExecutionState{
+        self.stock_pool_states.get(pool_id).cloned().unwrap_or_default()
+    }
+
+    pub(crate) fn set_stock_pool_execution_state(&mut self,pool_id:&str,state:crate::stock_pool_state::StockPoolExecutionState)->Result<(),String>{
+        if pool_id.trim().is_empty(){return Err("stock_pool_state_identity_missing".into())}
+        state.validate()?;self.stock_pool_states.insert(pool_id.into(),state);Ok(())
+    }
+
     pub fn initial_cash(&self) -> f64 {
         self.initial_cash.to_f64()
     }