8e32f3538c
LocalDb 0.3.8 ends open sync streams on ApplicationStopping and refuses new ones Unavailable while stopping (lmxopcua#906, library side). The host-side ShutdownStreamCancellationInterceptor (#140) stays. GracefulStopWithOpenSyncStreamTests' positive control passed the stop in ~900 ms under 0.3.8, because the library alone now ends the stream. The control registers LocalDbSyncService without the host lifetime (the 0.3.7 behaviour), so it still reproduces the 8 s drain; verified it fails on 0.3.8 without that change. Release build 0 warnings. Host.Tests 733/733, IntegrationTests 133/133 (incl. the LocalDb site-pair convergence tests), Communication.Tests 843/843, HealthMonitoring.Tests 131/131, SiteEventLogging.Tests 118/118. Claude-Session: https://claude.ai/code/session_01GT67ACmpMR7b9LGRPLijMi