chore: 把 GIF/MP4 移到 v2.0 release，仓库瘦身 74M → 612K

- 创建 v2.0 release 上传 20 个大文件（18 demo GIF + hero GIF + hero MP4）
- 两个 README 引用全部改为 release 永久链接
- demos/ 仅保留 19 个 HTML 源码作为参考
- 仓库 clone 体积从 74MB 降到 <1MB

文件加载体验不变（release CDN 跟 raw.github 一样快），但仓库 clone 干净多了。

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

README.en.md

@@ -36,12 +36,12 @@ npx skills add alchaincyf/huashu-design
 ---
 
 <p align="center">
-  <video src="demos/hero-animation-v10-en.mp4" autoplay muted loop playsinline width="100%">
-    Your browser doesn't support inline video. <a href="demos/hero-animation-v10-en.mp4">Download MP4</a>.
+  <video src="https://github.com/alchaincyf/huashu-design/releases/download/v2.0/hero-animation-v10-en.mp4" autoplay muted loop playsinline width="100%">
+    Your browser doesn't support inline video. <a href="https://github.com/alchaincyf/huashu-design/releases/download/v2.0/hero-animation-v10-en.mp4">Download MP4</a>.
   </video>
 </p>
 
-<p align="center"><sub>▲ 10-second hero animation showing what huashu-design does (<a href="demos/hero-animation-v10-en.mp4">download MP4</a> if autoplay doesn't work)</sub></p>
+<p align="center"><sub>▲ 10-second hero animation showing what huashu-design does (<a href="https://github.com/alchaincyf/huashu-design/releases/download/v2.0/hero-animation-v10-en.mp4">download MP4</a> if autoplay doesn't work)</sub></p>
 
 ---
 
@@ -86,55 +86,55 @@ No buttons, no panels, no Figma plugin. Agent-agnostic — drops into Claude Cod
 
 The fallback for vague briefs: pick 3 differentiated directions from 5 schools × 20 philosophies, generate all 3 demos in parallel, let the user choose.
 
-<p align="center"><img src="demos/w3-fallback-advisor-en.gif" width="100%"></p>
+<p align="center"><img src="https://github.com/alchaincyf/huashu-design/releases/download/v2.0/w3-fallback-advisor-en.gif" width="100%"></p>
 
 ### iOS App Prototype
 
 Pixel-accurate iPhone 15 Pro body (Dynamic Island / status bar / Home Indicator) · state-driven multi-screen navigation · real images pulled from Wikimedia/Met/Unsplash · Playwright click tests before delivery.
 
-<p align="center"><img src="demos/c1-ios-prototype-en.gif" width="100%"></p>
+<p align="center"><img src="https://github.com/alchaincyf/huashu-design/releases/download/v2.0/c1-ios-prototype-en.gif" width="100%"></p>
 
 ### Motion Design Engine
 
 Stage + Sprite time-slice model · `useTime` / `useSprite` / `interpolate` / `Easing` — four APIs cover every animation need · one command exports MP4 / GIF / 60fps-interpolated / BGM-scored finals.
 
-<p align="center"><img src="demos/c3-motion-design-en.gif" width="100%"></p>
+<p align="center"><img src="https://github.com/alchaincyf/huashu-design/releases/download/v2.0/c3-motion-design-en.gif" width="100%"></p>
 
 ### HTML Slides → Editable PPTX
 
 HTML decks for browser presentation · `html2pptx.js` reads DOM computed styles and translates each element into real PowerPoint objects · exports are **actual text frames**, not image-bed fakes.
 
-<p align="center"><img src="demos/c2-slides-pptx-en.gif" width="100%"></p>
+<p align="center"><img src="https://github.com/alchaincyf/huashu-design/releases/download/v2.0/c2-slides-pptx-en.gif" width="100%"></p>
 
 ### Tweaks · Live Variation Switching
 
 Colors / typography / information density parameterized · side panel toggle · pure-frontend + `localStorage` persistence · survives reload.
 
-<p align="center"><img src="demos/c4-tweaks-en.gif" width="100%"></p>
+<p align="center"><img src="https://github.com/alchaincyf/huashu-design/releases/download/v2.0/c4-tweaks-en.gif" width="100%"></p>
 
 ### Infographic / Data Viz
 
 Magazine-grade typography · precise CSS Grid columns · `text-wrap: pretty` typographic details · driven by real data · exports to vector PDF / 300dpi PNG / SVG.
 
-<p align="center"><img src="demos/c5-infographic-en.gif" width="100%"></p>
+<p align="center"><img src="https://github.com/alchaincyf/huashu-design/releases/download/v2.0/c5-infographic-en.gif" width="100%"></p>
 
 ### 5-Dimension Expert Critique
 
 Philosophical coherence · visual hierarchy · execution craft · functionality · innovation — each scored 0–10 · radar-chart visualization · outputs Keep / Fix / Quick Wins punch list.
 
-<p align="center"><img src="demos/c6-expert-review-en.gif" width="100%"></p>
+<p align="center"><img src="https://github.com/alchaincyf/huashu-design/releases/download/v2.0/c6-expert-review-en.gif" width="100%"></p>
 
 ### Junior Designer Workflow
 
 No heroic one-shot attempts: start with assumptions + placeholders + reasoning, show it to the user early, then iterate. Fixing a misunderstanding early is 100× cheaper than fixing it late.
 
-<p align="center"><img src="demos/w2-junior-designer-en.gif" width="100%"></p>
+<p align="center"><img src="https://github.com/alchaincyf/huashu-design/releases/download/v2.0/w2-junior-designer-en.gif" width="100%"></p>
 
 ### Core Asset Protocol · 5-step hard process
 
 Mandatory whenever the task involves a specific brand: ask → search → download (three fallback paths) → verify + extract → write `brand-spec.md` covering **logo, product shots, UI screenshots, colors, fonts** — all required assets, not just colors.
 
-<p align="center"><img src="demos/w1-brand-protocol-en.gif" width="100%"></p>
+<p align="center"><img src="https://github.com/alchaincyf/huashu-design/releases/download/v2.0/w1-brand-protocol-en.gif" width="100%"></p>
 
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