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- v2-ci.yml: upload-artifact@v4 -> @v3 + continue-on-error (act_runner reports as GHES and v4 refuses GHES, failing every run); runner-capacity diagnostic step; AKKA_TEST_TIMEFACTOR=3 on the test step. - Runtime/ControlPlane harnesses: akka.test.timefactor from AKKA_TEST_TIMEFACTOR (TestTimeFactor), single-expect-default 15s; ControlPlane gains PresenceBudget. - Leaked spinner threads: the infinite-loop timeout tests (Calculation, Host.IntegrationTests RoslynVirtualTagEvaluator, 3x Core.Scripting) pinned a core for the rest of the test process (abandoned, never stopped). Now a bounded 5 s wall-clock spin; outer compile-inclusive bound 30 s. - Real test races fixed: ScriptedAlarmEngine push-during-drain (Inactive is also the start state + persist-before-update => wait for the Cleared save); DriverReconnectE2e (both nodes host the driver; Created[] is last-writer-wins and ForceReconnect is a no-op while Connecting); ControlPlaneStarterOrder (lost-race heal waited for a 60 s refresh tick). - Fixed sleeps -> poll-for-condition: ReconnectSupervisor LastError, Modbus deadband steps (wait for observed reads), Modbus dispose hygiene precondition, FOCAS probe-loop log. - Short presence budgets -> PresenceBudget in the Runtime/ControlPlane tests seen failing on Gitea; Calculation Settle 10 -> 30 s. No assertion removed, nothing skipped. - infra/README.md §10 CI; stale TreatWarningsAsErrors comment in Directory.Build.props. Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe