- DELETE markKilled removes the job synchronously; FFmpeg is killed in the background so playlist/segment routes 404 immediately
- segment route waits up to 5s for in-progress segment writes
- centralize player teardown (pause, destroy HLS, clear media sources) to stop lingering audio/requests on close
- track and release transcode jobs on player close/reopen and reset format to avoid reusing killed job URLs
- add e2e transcode lifecycle test
tigerenwork