9115ab720c
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.