feat(skills): opt-in paper editorial theme for web-design and Markdown/multilingual RAG guidance for penguin-sdk (#133)

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

packages/web/src/lib/strings-en.ts

@@ -590,7 +590,7 @@ export const en: Strings = {
 
 ## Index page
 - \`index.html\` at the root: a card grid listing all 10 games (name + one-line mechanic + controls), each card opening its game.
-- One design language shared with every game, following the web-design skill; dark/light themes via \`<html data-theme>\` remembered in localStorage; responsive, single column on phones.
+- One design language shared with every game, following the web-design skill.
 
 ## Wrap-up
 - Review as a whole: the 10 mechanics really are distinct, the styling is consistent, and every index link resolves.
@@ -622,7 +622,7 @@ export const en: Strings = {
 - Keyboard shortcuts: Space play/pause, ← → previous/next, ↑ ↓ volume
 
 ## Design
-Penguin visual style (see the web-design skill), dark/light themes via <html data-theme>, dark by default, remembered in localStorage. Responsive: on phones the sidebar becomes a horizontally scrolling top bar.
+Penguin visual style (see the web-design skill), dark by default. On phones the sidebar becomes a horizontally scrolling top bar.
 
 When done, open index.html in a browser and self-test once.`,
       },
@@ -635,12 +635,7 @@ When done, open index.html in a browser and self-test once.`,
           "the app acts as a Claude Code configuration expert, answering Claude Code questions " +
           "with retrieval-augmented replies and clickable citations that reveal the matched " +
           "original text chunk and link to the real documents; " +
-          "give it a beautiful web chat UI following the web-design skill, with a few example questions in the empty state. " +
-          "Pay particular attention to matching the question's language against the corpus: the docs are English, " +
-          "while questions will often be Chinese. With a lexical retriever such as BM25, a Chinese query MUST be " +
-          "converted to English first (translate it, or extract English keywords) before it reaches the index — " +
-          "otherwise not a single Chinese term matches the English index and retrieval silently degrades to nothing. " +
-          "Mixed Chinese/English questions must retrieve correctly too, and the answer should follow the language of the question. " +
+          "give it a beautiful web chat UI following the web-design skill. " +
           "When done, run the app and self-test one Chinese question and one English question, confirming both retrieve " +
           "the right English documents and stream their answers, then tell me how to access it.",
       },

packages/web/src/lib/strings.ts

@@ -574,7 +574,7 @@ export const zh = {
 
 ## 索引首页
 - 根目录 \`index.html\`：卡片网格列出全部 10 个游戏（名称 + 一句话玩法 + 操作方式），点击进入对应游戏。
-- 与所有游戏共用一套设计语言，遵循 web-design 技能；深色 / 浅色主题（\`<html data-theme>\`）并用 localStorage 记忆；响应式，手机端单列。
+- 与所有游戏共用一套设计语言，遵循 web-design 技能。
 
 ## 收尾
 - 统一验收：10 个游戏玩法确实不重复、风格一致，索引页的链接全部可达。
@@ -606,7 +606,7 @@ export const zh = {
 - 键盘快捷键：空格播放暂停、← → 切歌、↑ ↓ 调音量
 
 ## 设计
-Penguin 视觉风格（见 web-design 技能），深色/浅色主题（<html data-theme>），默认深色，localStorage 记忆。响应式：手机端侧边栏变为顶部横向滚动。
+Penguin 视觉风格（见 web-design 技能），默认深色。手机端侧边栏变为顶部横向滚动。
 
 完成后在浏览器打开 index.html 自测一次。`,
       },
@@ -618,11 +618,7 @@ Penguin 视觉风格（见 web-design 技能），深色/浅色主题（<html da
           "克隆仓库并整理语料，建立检索索引；应用化身 Claude Code 配置专家，" +
           "检索增强回答 Claude Code 相关问题并标注可点击的来源引用——" +
           "引用要能展示命中的原文片段，并链接到真实文档；" +
-          "按 web-design 技能提供美观的 Web 聊天界面，空态展示几个示例问题。" +
-          "特别注意提问与语料的语言匹配：语料是英文，提问很可能是中文。" +
-          "如果用 BM25 之类的词法检索，中文查询必须先转换成英文（翻译或抽取英文关键词）再进入检索，" +
-          "否则中文词在英文索引里一个都命不中，会静默退化成空召回；" +
-          "中英混合提问同样要能正确召回，且回答语言跟随提问语言。" +
+          "按 web-design 技能提供美观的 Web 聊天界面。" +
           "完成后运行应用，用一个中文问题和一个英文问题各自测一次，" +
           "确认两者都检索到了正确的英文文档、流式回答正常，并告诉我访问方式。",
       },