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IntegrationTests-007: the three live test classes contend for shared singletons (one MXAccess COM, one ZB SQL DB, one GLAuth). Added LiveResourcesCollection with DisableParallelization and applied it to all three so they no longer run concurrently. IntegrationTests-008: the three live fact attributes each re-implemented the env-var check. Added IntegrationTestEnvironment.IsEnabled and all three now delegate to it. IntegrationTests-009: reworded the misleading "Mock server call context" XML doc — it is a hand-written stub with no verification behavior. IntegrationTests-010: WaitForMessageAsync ignored cancellation. It now takes an optional CancellationToken linked with the timeout; the smoke test shares one cancellation source with the StreamEvents call context. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>