deploy.sh: name the hazard the composer already implements — a new file
plus a manifest line is inert until the next deploy, while editing a file
already in the manifest is live in the running shell immediately.
Registration is the dangerous act, not creation.
patches/README: 0008 swaps the message delegate to one that does not carry
the vendor control row (regenerate, speak, re-synthesize, copy, edit, raw,
delete). Applying it would remove all seven.