refactor(docs): community 技术文档重归类 + 301 + syncedFromPosts eyebrow

按 IA 整理将 community 下技术内容分别归入目标分类：

git mv（30 个文件）：
- community/dev-tips/* → learn/cs/dev-tips/（含 Katex/ 子目录和图片资产）
- community/language/* → career/language/（PTE 语言考试，目标人群同 career）
- community/papers/* → learn/ai/papers/（AI 论文读书笔记）
- community/tools/* → learn/ai/tools/（ML 实验追踪工具、AI 浏览器）

301 重定向（next.config.mjs）：
- /docs/community/dev-tips → /zh/docs/learn/cs/dev-tips（含 :path* wildcard）
- /docs/community/language/:path* → /zh/docs/career/language/:path*
- /docs/community/papers/:path* → /zh/docs/learn/ai/papers/:path*
- /docs/community/tools → /zh/docs/learn/ai/tools（含 :path* wildcard）
- /docs/community → /zh/docs/learn（根路径废弃后兜底）
- 同步更正旧 CommunityShare/* wildcard destination 指向新路径

unsw-student-benefit 双存注记：
- frontmatter 加 syncedFromPosts/syncedAuthor/syncedPostsUrl（zh + en）
- docs 文章页模板在 h1 之前渲染「此文同步自作者主页 →」eyebrow
- PageData 类型同步补充三个字段

burnout-guide 和 community/mental-health/ 暂留，待 team-lead 确认作者归属。

Author: github-actions[bot]

app/[locale]/docs/[...slug]/page.tsx

@@ -126,6 +126,17 @@ export default async function DocPage({ params }: Param) {
       />
       <DocsPage toc={page.data.toc}>
         <DocsBody>
+          {data.syncedFromPosts && data.syncedPostsUrl && (
+            <p className="font-mono text-[10px] uppercase tracking-widest text-neutral-500 mb-4">
+              此文同步自作者主页 →{" "}
+              <a
+                href={data.syncedPostsUrl}
+                className="underline hover:text-neutral-700 dark:hover:text-neutral-300 transition-colors"
+              >
+                {data.syncedAuthor ? `${data.syncedAuthor} 的文章` : "原文"}
+              </a>
+            </p>
+          )}
           <div className="mb-6 flex flex-col gap-3 border-b border-border pb-6 md:mb-8 md:flex-row md:items-start md:justify-between">
             <h1 className="text-3xl font-extrabold tracking-tight md:text-4xl">
               {page.data.title}

app/types/doc.ts

@@ -39,6 +39,11 @@ export interface PageData {
     lang?: string;
     [key: string]: unknown;
   };
+  // docs 文章同步自作者 posts 主页时在 frontmatter 设置，
+  // 渲染层据此在文章顶部加「此文同步自作者主页 →」导航提示。
+  syncedFromPosts?: boolean;
+  syncedAuthor?: string;
+  syncedPostsUrl?: string;
   // 故意不挂顶层 [key: string]: unknown 索引签名 —— Fumadocs 的 page.data 由
   // zod DocOut 推出，没有 index signature；如果在 PageData 上挂一个，as PageData
   // 会触发 TS2352 "neither type sufficiently overlaps"。所有需要的字段都已

…/docs/community/language/pte-intro.en.md …ent/docs/career/language/pte-intro.en.mdcontent/docs/community/language/pte-intro.en.md renamed to content/docs/career/language/pte-intro.en.md content/docs/community/language/pte-intro.en.md renamed to content/docs/career/language/pte-intro.en.md

@@ -12,6 +12,9 @@ lang: en
 translatedFrom: zh
 translatedAt: 2026-05-11T00:00:00Z
 translatorAgent: claude-sonnet-4-6
+syncedFromPosts: true
+syncedAuthor: "Mira"
+syncedPostsUrl: "/u/mira/posts/unsw-student-benefit"
 ---
 
 Recently chatting with classmates, I discovered that our university offers a wealth of hidden benefits that many students are completely unaware of — not just career-related, but also academic. So today I'm here to close the information gap and compile a collection of these hidden campus perks. Feel free to add more in the comments!

…ent/docs/community/language/pte-intro.md content/docs/career/language/pte-intro.mdcontent/docs/community/language/pte-intro.md renamed to content/docs/career/language/pte-intro.md content/docs/community/language/pte-intro.md renamed to content/docs/career/language/pte-intro.md

@@ -8,6 +8,9 @@ tags:
   - student-resources
   - australia-study
 docId: jgyg6bp0nceyrxirz5qw3zsv
+syncedFromPosts: true
+syncedAuthor: "Mira"
+syncedPostsUrl: "/u/mira/posts/unsw-student-benefit"
 ---
 
 最近和同学聊天，发现学校有好多隐藏福利很多同学都不知道，不光是就业方面还有学业方面的各种福利。那么今天学姐就来打破信息差，为大家整理一个校园隐藏福利福利合集，还有其他更多隐藏福利欢迎大家评论区补充哦。