chore(spec): 归档 fix-site-polish——四缺陷+双轨验证六任务收敛

Spec: 2026-10-25_fix-site-polish

Co-authored-by: GLM-5.3

src/components/PostList.astro

@@ -9,8 +9,10 @@ interface Props {
   /** 调用方已完成 draft 过滤与 pubDate 倒序 */
   posts: CollectionEntry<'posts'>[];
   locale?: 'zh' | 'en';
+  /** slug → 译题（en 列表显示英文标题，视觉复核范围外观察） */
+  titleOverrides?: Record<string, string>;
 }
-const { posts, locale = 'zh' } = Astro.props;
+const { posts, locale = 'zh', titleOverrides } = Astro.props;
 // 轨道标签走字典（en 首页复用本组件时的双语位）；zh 保持原词表语义
 const TRACK_LABEL: Record<PostCategory, string> = {
   reading: t('category_reading', locale),
@@ -52,7 +54,7 @@ const mmdd = (d: Date) =>
                         aria-hidden="true"
                       />
                     )}
-                    <span class="row-title">{post.data.title}</span>
+                    <span class="row-title">{titleOverrides?.[post.id] ?? post.data.title}</span>
                     {cat !== 'reading' &&
                       post.data.tags.map((tag) => <code class="tag">{`#${tag}`}</code>)}
                     <time class="row-date" datetime={post.data.pubDate.toISOString()}>