- Remove IdeControl and Linter tools from the agentic stack, registry, and chat tool cards.

- Replace PersonaView with a nursery flow: gallery, assistant and hatch-template config pages, plus shared store and token estimate helpers.

- Add a dedicated Mermaid editor scene and refine mermaid panel, preview, and SVG interaction.

- Update chat input, model selector, flexible panel, mini-apps, my-agent nav, and related locales.

- Externalize AgentsScene and template-config copy; use English-only comments in profile config pages.