- Replace non-blocking try_recv() event loop with blocking recv() to
eliminate idle spin; the sender tick timeout still drives minimum
wakeup rate so the UI stays responsive
- Lower default tick rate from 50 ms to 100 ms (10 ticks/sec vs 20);
add MANAGARR_TICK_RATE_MS env var for runtime tuning
- Move terminal draws to event boundaries (key + tick) instead of every
loop pass, reducing unnecessary redraws
- In network error handling, prefer concise JSON fields (message /
errorMessage / error) over the raw HTTP body, so Radarr ASP.NET
stack traces don't flood the TUI banner; full body still logged
- Add unit tests for tick-rate parsing and Radarr-style JSON error body
Observed: ~0.6% total CPU at idle vs measurably higher with prod defaults
