Fix UI restart hanging before response flush#1619
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Summary
/api/restartreturn immediately and schedule the actual reload in a delayed daemon thread.os.execv()instead of exiting in Docker before the UI request can complete.HEAD /api/healthfor readiness probes.Why
The Web UI restart flow could hang because
/api/restartcalledprocess.reload()before the HTTP response was reliably flushed. In Docker/LXC this could terminate or interrupt the request, leaving the UI polling/waiting indefinitely.Validation
python -m py_compile api/restart.py api/health.py helpers/process.py tests/test_restart_api.pypython -m pytest -q tests/test_restart_api.py→ 3 passed