Add open auction matching mode

crates/fidc-core/src/broker.rs

@@ -40,6 +40,7 @@ struct TargetConstraint {
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub enum MatchingType {
+    OpenAuction,
     CurrentBarClose,
     NextBarOpen,
     NextTickLast,
@@ -1270,6 +1271,7 @@ where
                     date,
                     symbol: position.symbol.clone(),
                     field: match field {
+                        PriceField::DayOpen => "day_open",
                         PriceField::Open => "open",
                         PriceField::Close => "close",
                         PriceField::Last => "last",
@@ -1611,6 +1613,7 @@ where
 
 fn price_field_name(field: PriceField) -> &'static str {
     match field {
+        PriceField::DayOpen => "day_open",
         PriceField::Open => "open",
         PriceField::Close => "close",
         PriceField::Last => "last",