- Process: Add IProcessHandle, ProcessOutputLine, StartAsync; RunAsync via StartAsync+WaitForExitAsync. Wait for stdout/stderr stream close before reading to fix empty restart output. ProcessTimeouts; ReloadService/StatusController/LogsService use config timeouts.
- Effective config: Rename reload→restart in save/restore result types and UI. Save modal: show restart output, danger alert, Stop editing/Continue editing (yellow), footer one-line; fallback exit code when no output; ensure pre visibility (CSS). Restore failed: combined output helper.
- Status script: When dnsmasq dead, run dnsmasq --test and show config error in status block (Docker harness; DNSMASQ_CONF).
- listen-address: Allow IPv6 (ValidateDraftValue accepts InterNetworkV6).
- Docker test: RestartCommand uses DnsmasqOptions timeout; DnsmasqOptions RestartTimeoutSeconds.
- Register ISettingsModalService, INotificationService, IUpdateCheckService via assembly scanning (marker interfaces)
- Add IApplicationOptionsValidator<TOptions> marker; scan only those for IValidateOptions registration
- Fix ApplicationLifecycleLoggingHostedService: log RestartCommand/ReloadCommand/StatusCommand (no ApplyCommand)
- NavMenu: spin animation for update-check button icon when checking; single icon with conditional nav-footer-spin class
- Add NotificationHost/NotificationToast components and NotificationService for toasts
- Effective config save flow, restore result, save service; various EffectiveConfig and DnsmasqOptions/validator updates
- Test and script updates; docker-compose.test.yml, appsettings, DnsmasqConfKeys/tooltips/sections
alex