959f04bc96
Documents (a) the rule that a worker inherits the PRIMARY's working directory,
never $HOME — resolved from an explicit cwd, else the bridge_spawn caller's PID
(lsof -d cwd), else the daemon cwd; herdr's seam is workspace.create {cwd}, since
agent.start has no cwd; (b) ccs (Claude Code) as the assumed launcher and its
folder-trust model (hasTrustDialogAccepted per project in each instance's
.claude.json), so trusting the project dir once per profile clears the prompt;
(c) that other CLIs have their own startup gates, documented per launcher.
Marks the cwd-inheritance as target design (follow-up), not yet wired.