1. Rate limiter cleanup goroutine now stoppable via Stop() channel
instead of looping forever. Prevents goroutine leak in tests.
2. Dead WindowSizeMsg branch in handleFormMsg removed — top-level
Update handles resize before forms see it.
3. Probe results sorted by node ID — map iteration no longer
reorders rows every render.
4. fmtAlertConfig takes models.AlertConfig directly instead of an
anonymous struct the caller builds inline.
5. Backspace no longer aliases delete — d is the documented key.
Prevents accidental delete-confirm on habitual backspace.
6. SLA daily buckets use time.Date day arithmetic instead of
Add(-i*24h) — lands on midnight correctly across DST transitions.
lerko
