Squashed commit of the following:

commit bc116ee
Author: xdustinface <xdustinfacex@gmail.com>
Date:   Wed Dec 24 09:59:48 2025 +0100

    refactor: simplify immature transactions handling

Author: xdustinface

key-wallet/src/managed_account/mod.rs

@@ -265,15 +265,15 @@ impl ManagedAccount {
     }
 
     /// Update the account balance
-    pub fn update_balance(&mut self) {
+    pub fn update_balance(&mut self, synced_height: u32) {
         let mut spendable = 0;
         let mut unconfirmed = 0;
         let mut locked = 0;
         for utxo in self.utxos.values() {
             let value = utxo.txout.value;
             if utxo.is_locked {
                 locked += value;
-            } else if utxo.is_confirmed {
+            } else if utxo.is_spendable(synced_height) {
                 spendable += value;
             } else {
                 unconfirmed += value;

key-wallet/src/tests/immature_transaction_tests.rs

@@ -12,8 +12,6 @@ mod backup_restore_tests;
 
 mod edge_case_tests;
 
-mod immature_transaction_tests;
-
 mod integration_tests;
 
 mod managed_account_collection_tests;