chore(eth_sender): Add comments to the mini merkle tree

core/lib/dal/src/blocks_dal.rs

@@ -2222,12 +2222,12 @@ impl BlocksDal<'_, '_> {
     }
 
     pub async fn get_last_executed_priority_op_id(&mut self) -> DalResult<Option<usize>> {
-        let lat_executed_l1_batch = self
+        let last_executed_l1_batch = self
             .storage
             .blocks_dal()
             .get_number_of_last_l1_batch_with_tx(L1BatchAggregatedActionType::Execute)
             .await?;
-        let Some(lat_executed_l1_batch) = lat_executed_l1_batch else {
+        let Some(lat_executed_l1_batch) = last_executed_l1_batch else {
             return Ok(None);
         };
 

core/lib/dal/src/transactions_dal.rs

@@ -163,6 +163,7 @@ impl TransactionsDal<'_, '_> {
         Ok(())
     }
 
+    /// Get L1 transaction hashes by their priority op ids, inclusive.
     pub async fn get_l1_transactions_hashes(
         &mut self,
         start_id: usize,

core/node/eth_sender/src/aggregator.rs

@@ -490,6 +490,9 @@ impl Aggregator {
                 .filter(|(first_id, _last_id)| *first_id >= priority_tree_start_index);
 
             let count = batch.header.l1_tx_count as usize;
+
+            // If there are priority operations in this batch. We have to prepare a merkle path for them.
+            // For being always deterministic we build the tree that includes ONLY transcations up to the current batch.
             if let Some((first_priority_op_id_in_batch, last_priority_op_id_in_batch)) =
                 priority_ops_in_batch
             {