Proposal to integrate the plugin with additional skills

The main task here is definitely to interview the user for a new website and develop a fresh theme, which is handled by the provided skill of `site specification`.

I believe, that other skills should integrated:
- Anthropics' [Frontend Design](https://github.com/anthropics/skills/tree/main/skills/frontend-design)
- Microsoft's [Playwright CLI](https://github.com/microsoft/playwright-cli/tree/main/skills/playwright-cli)

That will make the main skill more efficient and productive.

Regards,
George J.

首先阅读提供的 `site specification` skill 以及链接的 Anthropic Frontend Design 和 Microsoft Playwright CLI skill 资源。确定这些 skill 应如何支持 new-website 工作流；完成的标准是两个提议的 skill 都已集成，并且主 skill 变得更加高效和富有成效。

由索引模型根据 Issue 内容生成。