fix(Logger): disable channels instead of destroying the map on shutdo…#5325
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fix(Logger): disable channels instead of destroying the map on shutdo…#5325
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Reflect the post-#5324 behavior: channels are detached and released while Logger instances are kept alive, so cached Logger references remain valid. Document the intended one-shot, pre-exit usage.
Regression test for the use-after-free fix: caches a Logger reference before Logger::shutdown(), then logs through it after shutdown and verifies the reference is still valid and logging is a safe no-op.
Replace the unbounded thread.join() at the end of testTrySleep with tryJoin(5000) plus an isRunning() assertion, so a regression in Thread::wakeUp() surfaces as a fast test failure rather than a CI hang.
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…wn #5324