The live import surfaced it: a multi-chunk notes source renders N feed
rows, and the dock keyed every one by run.chatId (the SOURCE id) —
React's duplicate-key error. The activity feed also dropped run.part
entirely, so all chunk rows showed identical titles.
- ActivityExtraction/FeedExtraction gain a unique row id (source id, or
'src#i' for chunk jobs) and part; the feed title carries the '· i/N'
suffix like the graph status route
- toBlobs keys extraction blobs by the row id; chatId stays the SOURCE
id (identity for links)
- abort sends the SOURCE id for extractions — aborting any chunk row
kills the source's whole fan-out (the new source-wide abort), and the
abort route's id charset rejects '#' anyway
- new pin: one source, two chunk rows → two blobs, distinct ids, same
chatId; dock fixtures updated