feat: add get_current_partial_mmr as a client method (0xMiden#1466)

Author: TomasArrachea

crates/rust-client/src/sync/block_header.rs

@@ -39,6 +39,11 @@ impl<AUTH> Client<AUTH> {
         Ok(genesis_block)
     }
 
+    /// Fetches from the store the current view of the chain's [`PartialMmr`].
+    pub async fn get_current_partial_mmr(&self) -> Result<PartialMmr, ClientError> {
+        self.store.get_current_partial_mmr().await.map_err(Into::into)
+    }
+
     // HELPERS
     // --------------------------------------------------------------------------------------------
 

crates/rust-client/src/sync/state_sync.rs

@@ -65,6 +65,7 @@ pub trait OnNoteReceived {
 ///
 /// When created it receives a callback that will be executed when a new note inclusion is received
 /// in the sync response.
+#[derive(Clone)]
 pub struct StateSync {
     /// The RPC client used to communicate with the node.
     rpc_api: Arc<dyn NodeRpcClient>,
@@ -123,7 +124,7 @@ impl StateSync {
     /// * `unspent_input_notes` - The current state of unspent input notes tracked by the client.
     /// * `unspent_output_notes` - The current state of unspent output notes tracked by the client.
     pub async fn sync_state(
-        self,
+        &self,
         mut current_partial_mmr: PartialMmr,
         accounts: Vec<AccountHeader>,
         note_tags: BTreeSet<NoteTag>,