[{"type":"thinking","thinking":"The user just says \"Hello\". Simple greeting. Respond briefly, remind them where things stand (Paper A frozen, letter/note docx built), and ask what's next. Keep it very concise.","signature":""},{"type":"text","text":"Hello! Picking up where we left off:\n\n- **Paper A** — frozen for expert review (commit `7087282`, 13 pp, clean)\n- **Correspondence docs** — `note_on_the_right-horizontal.docx` and `Letter_To_Professor_Lagarias.docx` built, uncommitted\n\nWhat's next?"}]