watch (C)

Part 3 · EACH TOOL · Slide 27 of 60

Facts have shelf lives. Pulls the [cited] claims out of a
dossier into watch/watchlist.md and re-verifies them on a
schedule; `watch.py due` lists what has expired — and every open
question past its recheck date. `close O-<n>` writes the closing
record that cites it.