README 同步上线官网链接 + site/ 目录说明

- README.md / README.zh.md：顶部加 🌐 Website 链接、Project Structure 补 site/
- site/README.md：部署说明更新为已上线 + 自动部署

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: Li-Evan

README.md

@@ -23,7 +23,7 @@
 </p>
 
 <p align="center">
-  <a href="./README.zh.md">Chinese</a> · English
+  <a href="https://li-evan.github.io/Bloom/"><strong>🌐 Website</strong></a> · <a href="./README.zh.md">Chinese</a> · English
 </p>
 
 ---
@@ -171,6 +171,7 @@ make up / make down   # docker start / stop
 │       ├── CoursePage     # syllabus + lesson list
 │       └── LessonPage     # reader + annotations + feedback + AI gen
 ├── example/               # pre-built topics for CLI mode
+├── site/                  # marketing website (standalone Astro static build, decoupled from the app)
 └── skills/                # portable Claude Code skills (bloom-tutor + learn-*)
 ```
 

README.zh.md

@@ -23,7 +23,7 @@
 </p>
 
 <p align="center">
-  简体中文 · <a href="./README.md">English</a>
+  <a href="https://li-evan.github.io/Bloom/"><strong>🌐 官网</strong></a> · 简体中文 · <a href="./README.md">English</a>
 </p>
 
 ---

site/README.md

@@ -34,14 +34,11 @@ npm run preview    # serve the production build locally
 `site/dist` is a plain static bundle — deploy it anywhere (Vercel, Netlify,
 Cloudflare Pages, GitHub Pages, S3…). The app's own deploy is unaffected.
 
-**GitHub Pages:** a manual workflow lives at
-[`../.github/workflows/deploy-site.yml`](../.github/workflows/deploy-site.yml).
-To use it:
-
-1. Repo **Settings → Pages → Build and deployment → Source: GitHub Actions**
-2. Run the **"Deploy site to GitHub Pages"** workflow (Actions tab → Run workflow)
-3. If serving from a project page (`li-evan.github.io/Bloom`), uncomment `base: '/Bloom'`
-   in `astro.config.mjs`. For a custom domain, set `site:` and add `public/CNAME`.
+**GitHub Pages (live):** deployed at **<https://li-evan.github.io/Bloom/>** via
+[`../.github/workflows/deploy-site.yml`](../.github/workflows/deploy-site.yml),
+which auto-runs on every change under `site/`. `astro.config.mjs` already sets
+`base: '/Bloom'` for the project page. For a custom domain or user page, set `base`
+back to `'/'`, point `site:` at the domain, and add `public/CNAME`.
 
 The "Get started" CTAs link to the [GitHub repo](https://github.com/Li-Evan/Bloom)
 and the local quick-start. If you ever host the web app publicly, point those CTAs