Ignoring made an event vanish with no way back except knowing the reveal
toggle existed — and the row you would click to undo is the row that just
disappeared.
Now: an undo appears the moment you ignore something, and revealed ignored
rows are labelled and carry a restore control where the done checkbox
normally sits, which is the most direct place for it.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
