Development record

.abcd/development/brief/04-surfaces/34-build.md:533 says a route override is refused beside a release, a discard or a restart, which hand no role out. internal/surface/cli/build.go:1224-1232 refuses it only beside `--release` and `--discard`: a `--restart` takes the route and starts the restarted role on it at once. `abcd implement step --help` and the chapter's own later sentence on a restart with a route in force say the same.