Development record

`.abcd/development/brief/04-surfaces/03-embark.md:213-214` says embark carries the pass-B exemption through as the first line of both reports. The first line of the `embark probe` report is its heading, `embark probe: <name> (lifeboat verified)` (`internal/core/lifeboat/embark_render.go:25`), and the exemption follows it. Only `embark from` opens with the exemption.