fix(opensource): zh 开源页补 pinned 参数接线（收编遗漏）

内容管理车道改了 zh/en 双页，收编时只圈了 en 版，zh 版靠默认
PINNED_DEFAULT 兜底（行为等价但接线不一致）。补收编。

验证: pnpm astro build 45 页；E2E 37/37；content-lint 0/0/0

Spec: none (收编遗漏补齐)

Co-authored-by: GLM-5.3

src/pages/opensource.astro

@@ -3,15 +3,19 @@ import ProjectWall from '../components/geek/ProjectWall.astro';
 import Heatmap from '../components/geek/Heatmap.astro';
 import BaseLayout from '../layouts/BaseLayout.astro';
 import { t } from '../i18n/ui';
+import { openSourceCopy } from '../lib/site-content';
+
+// 叙述文案 + 置顶名单均改由 content/site/opensource.yaml 供给（后台可改）
+const copy = await openSourceCopy('zh');
 ---
 <BaseLayout title="开源 · wait4x" description="我的开源活动：仓库、贡献与本站源码">
   <h1 class="page-title">开源<span class="count mono">Open Source</span></h1>
-  <p class="blurb">本站本身即开源：<a class="link" href="https://git.wait4x.online/wait4x/blog">git.wait4x.online/wait4x/blog</a> —— Astro SSG、双写作流、构建发布全链皆在仓中。以下是我在自托管 gitea 与 GitHub 上的全部公开仓库，以及最近一年的贡献活动。</p>
+  <p class="blurb">{copy.blurb}<a class="link" href={copy.repoUrl}>{copy.repoLabel}</a>{copy.blurbAfter}</p>
   <Heatmap labels={{
     title: t('heatmap_title', 'zh'), summary: t('heatmap_summary', 'zh'),
     less: t('heatmap_less', 'zh'), more: t('heatmap_more', 'zh'), note: t('heatmap_note', 'zh'),
   }} />
-  <ProjectWall limit={99} />
+  <ProjectWall limit={99} pinned={copy.pinned} />
 </BaseLayout>
 
 <style>