- Render assistant reasoning as a distinct block (not merged into message text).\n- Detect tool-like messages reliably and style them separately.\n- Add a "🧠" toggle to hide/show tool + thinking output, persisted in UI settings.
- Render assistant reasoning as a distinct block (not merged into message text).\n- Detect tool-like messages reliably and style them separately.\n- Add a "🧠" toggle to hide/show tool + thinking output, persisted in UI settings.