Finalize Step — Deploy Target (project-local)

Project-local executor for project:finalize-step-deploy-target. Always invokes the multi-target generator to emit the Claude Code output tree at target/claude/. The generator itself handles the no-op case (when output already matches sources, the equality engine inside the claude target short-circuits the per-bundle write), so this step has no skip detector: it always runs, the generator always returns a status, and this executor records the outcome from that status.