davide
73a2d5356d
WalletSynchronizer now pipelines JSON-RPC requests (address subscribes, histories, tx downloads and Merkle proofs run in parallel batches) and keeps per-connection caches of downloaded transactions and verified proofs, so notification-triggered resyncs only cost the delta. The app connects automatically when a wallet opens, keeps one synchronizer per connection, and queues notifications that arrive during a sync instead of dropping them: incoming transactions now show up within seconds.