Development record

`03-embark.md:165` gives the marker block's outcomes by `docs.target` and does not list an unreadable `.abcd/config.json`, which skips the block with the note `could not be read, so abcd's block was not planted; fix that file and run embark again` (`markerSkipUnreadable`, `internal/core/lifeboat/embark.go:578`). The chapter also does not say this differs from an unknown value, which reads as no choice and goes to `AGENTS.md`.