[iris] Isolate per-test ThreadContainer to drop 5s controller test teardowns#4875
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[iris] Isolate per-test ThreadContainer to drop 5s controller test teardowns#4875claude[bot] wants to merge 1 commit intomainfrom
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…ardowns Controller tests under lib/iris/tests/cluster/controller that construct a Controller without calling .stop() leak the non-daemon log-server uvicorn thread, tripping the top-level _thread_cleanup autouse fixture's 5s wait. Install thread_container_scope as an autouse fixture so the container's on_stop hook signals server.should_exit and the thread exits immediately. Fixes #4872
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Controller tests under lib/iris/tests/cluster/controller construct a Controller without calling .stop(), leaking the non-daemon log-server uvicorn thread and tripping the top-level _thread_cleanup autouse fixture's 5s wait. Add an autouse thread_container_scope fixture so the container's on_stop hook signals server.should_exit on test exit and the 5s teardowns drop to under 0.2s.
Fixes #4872