Navecraft

Advances the Navecraft roadmap (TODO.md) by one step: reads TODO.md, picks the single best code-only next item, implements it end-to-end (code + tests), updates TODO.md honestly, and writes a complete report of what happened. Use this whenever the user wants to advance the phased roadmap tracked in TODO.md (not to edit an inline `# TODO` comment) — e.g. "fazer o proximo passo do TODO", "advance the roadmap", "advance the TODO", "pick and do the next thing", "do the next thing/item", "implementar o proximo item", "faz o proximo item", "continue the roadmap / TODO.md", or asks Claude to autonomously choose and ship the next pending task from TODO.md. Trigger on the slash command /proximo-passo, or on bare phrases like "proximo passo" / "next step" ONLY when the user clearly means advancing TODO.md (not a generic "what do I do next?" in an unrelated planning or debugging conversation).