Hub — reply from the peek (Space)

The former quick-reply panel and the separate agents view (c) are gone: the hub lists runs and chats together, and Space opens the inspector on the selected row with a reply input (see "Fleet hub"). On a run row, typing a follow-up and pressing ⏎ dispatches it as a NEW detached background run in that run's project directory, with the prompt prefixed Follow-up to run <id> ("<task>"): … so the worker gets context; the new run appears in Live watch. On a chat row the reply reopens the chat with it as the next message. While a dispatch is pending the input shows dispatching… and ignores a second ⏎; a dispatch blocked by a PreDispatch hook, the daily spend cap or any launch error shows dispatch failed: <reason> — text kept, Enter to retry, Esc to discard. esc closes the peek; Space also closes it while the input is still empty.