start starts by hand the pipeline of a watched branch's head from the runner's
catalog half, refusing a head already started; ask-again asks a declined
approval once more under an ask of its own, its id following from when it was
asked again so the ask rebuilt for its warrant is the same. Each is recorded in
the hand-act log first; the process answers both beside review, rerun, accept
and cancel.
Builds: design 47 G §30, §39, §306, §36, §394
Claude-Session: https://claude.ai/code/session_01NcbgfGKaxw984XyAPfLm4h