Build review P2: the supervisor ignores a lost reply pipe and keeps
supervising. Security P2: a stop signal during start is held until the
start settles, and the CLI's start timeout signals the supervisor's
process group. Security P1 (part): console start --dev-local-owner
refuses inside an agent run. Tests cover review, confirm and reverse on
the org autonomy route; TOOLS.md and the webui README are corrected.