Development record

`.abcd/development/brief/02-constraints/04-naming.md:14`: The naming row's list of ahoy write paths omits the worktree and shared-folder sub-verbs that write. Three more ahoy sub-verbs write, by their own help sentences: `abcd ahoy worktree add` writes the worktree, its start record and its local tier; `abcd ahoy worktree prune` writes the notes archive and removes the worktree and its branch; `abcd ahoy shared-folder <folder>` writes the choice.