feat: implement Block::build_note_tree

objects/src/block/mod.rs

@@ -1,5 +1,7 @@
 use alloc::vec::Vec;
 
+use miden_crypto::merkle::MerkleError;
+
 use super::{Digest, Felt, Hasher, ZERO};
 
 mod header;
@@ -102,6 +104,15 @@ impl Block {
         })
     }
 
+    /// Returns a note tree containing all notes created in this block.
+    pub fn build_note_tree(&self) -> Result<BlockNoteTree, MerkleError> {
+        let entries = self
+            .notes()
+            .map(|(note_index, note)| (note_index, note.id().into(), *note.metadata()));
+
+        BlockNoteTree::with_entries(entries)
+    }
+
     /// Returns a set of nullifiers for all notes consumed in the block.
     pub fn created_nullifiers(&self) -> &[Nullifier] {
         &self.created_nullifiers