fix wallet storage bug

wallet/src/helperfunctions.rs

@@ -165,6 +165,9 @@ pub fn produce_data_for_storage(
         }
     }
 
+    let covered_private_chain_indices: std::collections::BTreeSet<_> =
+        user_data.private_key_tree.account_id_map.values().cloned().collect();
+
     for (account_id, key) in &user_data.private_key_tree.account_id_map {
         if let Some(data) = user_data.private_key_tree.key_map.get(key) {
             vec_for_storage.push(
@@ -178,6 +181,24 @@ pub fn produce_data_for_storage(
         }
     }
 
+    // Also persist fresh nodes that have no identifiers yet and are therefore absent from
+    // account_id_map. Without this, a restart before the first sync would lose the node
+    // entirely, making it impossible to detect incoming transfers.
+    for (chain_index, node) in &user_data.private_key_tree.key_map {
+        if !covered_private_chain_indices.contains(chain_index) {
+            let account_id =
+                nssa::AccountId::from((&node.value.0.nullifier_public_key, 0_u128));
+            vec_for_storage.push(
+                PersistentAccountDataPrivate {
+                    account_id,
+                    chain_index: chain_index.clone(),
+                    data: node.clone(),
+                }
+                .into(),
+            );
+        }
+    }
+
     for (account_id, key) in &user_data.default_pub_account_signing_keys {
         vec_for_storage.push(
             InitialAccountData::Public(PublicAccountPrivateInitialData {