The Settings page drove the controller's synchronous createWallet/openWallet/
restoreWallet, which blocks the UI thread on the (often flaky) lightwalletd and
gives up after the first server. Add a generic async lifecycle path that mirrors
the async-open failover but carries the full request (passphrase, restore seed/
birthday/account/overwrite):
- beginCreateWalletAsync / beginOpenWalletAsync / beginRestoreWalletAsync run
on a detached thread that builds its OWN local LiteWalletLifecycleService
from captured value copies + the shared bridge (never `this`, so it can
safely outlive the controller). Each request type's serverUrl override field
feeds the failover: try the preferred server, then every other usable
default; stop on the first ready wallet or a structural block; keep the
preferred server's error on total failure. The request's secrets are wiped
once the attempt finishes.
- pumpLifecycleResult() finalizes on the main thread (flip walletOpen, persist,
start sync) and caches the result for the UI; wired into App::update next to
pumpAsyncOpen(). beginAsyncLifecycle() now also yields to an in-flight
lifecycle request so the auto-open loop can't race it on the same bridge.
- settings_page kicks off the async op, disables the button while in flight,
and polls the cached result each frame for the status/summary.
Tests: testLiteWalletControllerAsyncLifecycleFailover covers async create (with
passphrase) and restore failing over preferred->fallback, plus all-servers-down.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>