fix: restore article detail ssr context

app/composables/useArticle.js

@@ -116,41 +116,43 @@ export async function useArticleDetail(colId) {
   const detail = computed(() => data.value?.detail || {})
   const canonical = computed(() => `https://tool.aionline.cc${articleUrl(detail.value)}`)
 
-  useSeoMeta({
-    title: () => legacyPageTitle(detail.value.title),
-    description: () => detail.value.info || LEGACY_DEFAULT_DESCRIPTION,
-    keywords: () => detail.value.title || LEGACY_DEFAULT_KEYWORDS,
-    ogTitle: () => detail.value.title,
-    ogDescription: () => detail.value.info || detail.value.title,
-    ogType: 'article',
-    ogImage: () => detail.value.cover || '',
-    articlePublishedTime: () => formatTime(detail.value.publish_time, 'YYYY-MM-DDTHH:mm:ssZ'),
-  })
-
-  useHead({
-    link: [{ rel: 'canonical', href: canonical }],
-    // 结构化数据，利于搜索结果富摘要
-    script: [{
-      type: 'application/ld+json',
-      innerHTML: computed(() => JSON.stringify({
-        '@context': 'https://schema.org',
-        '@type': 'Article',
-        headline: detail.value.title,
-        description: detail.value.info || '',
-        image: detail.value.cover ? [detail.value.cover] : undefined,
-        datePublished: formatTime(detail.value.publish_time, 'YYYY-MM-DD'),
-        author: { '@type': 'Organization', name: 'AI在线' },
-        publisher: { '@type': 'Organization', name: 'AI在线' },
-        mainEntityOfPage: { '@type': 'WebPage', '@id': canonical.value },
-      })),
-    }],
-  })
-
   // 文章不存在 → 404，避免无效页面被搜索引擎收录
   if (error.value || !data.value?.detail?.id) {
     throw createError({ statusCode: 404, statusMessage: '文章不存在', fatal: true })
   }
 
+  await nuxtApp.runWithContext(() => {
+    useSeoMeta({
+      title: () => legacyPageTitle(detail.value.title),
+      description: () => detail.value.info || LEGACY_DEFAULT_DESCRIPTION,
+      keywords: () => detail.value.title || LEGACY_DEFAULT_KEYWORDS,
+      ogTitle: () => detail.value.title,
+      ogDescription: () => detail.value.info || detail.value.title,
+      ogType: 'article',
+      ogImage: () => detail.value.cover || '',
+      articlePublishedTime: () => formatTime(detail.value.publish_time, 'YYYY-MM-DDTHH:mm:ssZ'),
+    })
+
+    useHead({
+      link: [{ rel: 'canonical', href: canonical }],
+      // 结构化数据，利于搜索结果富摘要
+      script: [{
+        type: 'application/ld+json',
+        innerHTML: computed(() => JSON.stringify({
+          '@context': 'https://schema.org',
+          '@type': 'Article',
+          headline: detail.value.title,
+          description: detail.value.info || '',
+          image: detail.value.cover ? [detail.value.cover] : undefined,
+          datePublished: formatTime(detail.value.publish_time, 'YYYY-MM-DD'),
+          author: { '@type': 'Organization', name: 'AI在线' },
+          publisher: { '@type': 'Organization', name: 'AI在线' },
+          mainEntityOfPage: { '@type': 'WebPage', '@id': canonical.value },
+        })),
+      }],
+    })
+  })
+
   // 访问的栏目路径与文章实际栏目不一致 → 301 到规范地址（避免重复内容）
   if (colId && Number(detail.value.col_id) !== Number(colId)) {
     await nuxtApp.runWithContext(() =>