fix(transaction-history-bloc): add event for onDone handler

Empty transaction histories appear to step directly into the onDone handler, skipping the listener handler entirely. Adding this event shows the "No transaction history" message when there is no transaction history present for the coin

lib/bloc/transaction_history/transaction_history_bloc.dart

@@ -63,7 +63,10 @@ class TransactionHistoryBloc
 
     try {
       add(const TransactionHistoryStartedLoading());
-      final asset = getSdkAsset(_sdk, event.coin.abbr);
+      final asset = _sdk.assets.available[event.coin.id];
+      if (asset == null) {
+        throw Exception('Asset ${event.coin.id} not found in known coins list');
+      }
 
       // Subscribe to historical transactions
       _historySubscription =
@@ -98,11 +101,18 @@ class TransactionHistoryBloc
           );
         },
         onDone: () {
+          add(TransactionHistoryUpdated(transactions: state.transactions));
           // Once historical load is complete, start watching for new transactions
           _subscribeToNewTransactions(asset, event.coin);
         },
       );
-    } catch (e) {
+    } catch (e, s) {
+      log(
+        'Error loading transaction history: $e',
+        isError: true,
+        path: 'transaction_history_bloc->_onSubscribe',
+        trace: s,
+      );
       add(
         TransactionHistoryFailure(
           error: TextError(error: LocaleKeys.somethingWrong.tr()),

lib/bloc/transaction_history/transaction_history_state.dart

@@ -14,7 +14,7 @@ final class TransactionHistoryState extends Equatable {
   final BaseError? error;
 
   @override
-  List<Object?> get props => [transactions, loading];
+  List<Object?> get props => [transactions, loading, error];
 
   const TransactionHistoryState.initial()
       : transactions = const [],