chore: rename straight_to_pool to direct_execution

src/encoding/evm/strategy_encoder/encoder.rs

@@ -118,7 +118,7 @@ mod tests {
             // The receiver was generated with `makeAddr("bob") using forge`
             receiver: Bytes::from_str("0x1d96f2f6bef1202e4ce1ff6dad0c2cb002861d3e").unwrap(),
             swaps: vec![swap],
-            straight_to_pool: true,
+            direct_execution: true,
             router_address: Some(Bytes::zero(20)),
             slippage: None,
             native_action: None,

src/encoding/evm/strategy_encoder/selector.rs

@@ -8,7 +8,7 @@ pub struct EVMStrategySelector;
 
 impl StrategySelector for EVMStrategySelector {
     fn select_strategy(&self, solution: &Solution) -> Box<dyn StrategyEncoder> {
-        if solution.straight_to_pool {
+        if solution.direct_execution {
             Box::new(ExecutorStrategyEncoder {})
         } else {
             Box::new(SplitSwapStrategyEncoder {})