feat: 代码片段功能与 Markdown 内嵌片段渲染、文档截图等

frontend/app/sitemap.ts

@@ -5,9 +5,10 @@ import {
   fetchAnnouncementsPage,
   fetchPublishedSitePages,
   fetchLibraryList,
+  fetchSnippets,
 } from "@/lib/api";
 import { canonicalPath, resolveSiteOrigin } from "@/lib/siteUrl";
-import { announcementPath, postPath, pagePath, leaderboardPath, libraryPath, libraryDocPath } from "@/lib/urlStyle";
+import { announcementPath, postPath, pagePath, leaderboardPath, libraryPath, libraryDocPath, snippetsPath, snippetPath } from "@/lib/urlStyle";
 import { getPublicSettingsCached } from "@/lib/serverData";
 
 export default async function sitemap(): Promise<MetadataRoute.Sitemap> {
@@ -40,6 +41,12 @@ export default async function sitemap(): Promise<MetadataRoute.Sitemap> {
       changeFrequency: "daily",
       priority: 0.5,
     },
+    {
+      url: url(snippetsPath(style)),
+      lastModified: new Date(),
+      changeFrequency: "daily",
+      priority: 0.5,
+    },
     {
       url: url("/about"),
       lastModified: new Date(),
@@ -104,5 +111,20 @@ export default async function sitemap(): Promise<MetadataRoute.Sitemap> {
     /* 忽略 */
   }
 
+  try {
+    const { items } = await fetchSnippets({ page: 1, size: 200 });
+    for (const it of items) {
+      if (it.visibility !== "public") continue;
+      entries.push({
+        url: url(snippetPath(style, it.id)),
+        lastModified: new Date(it.updated_at || it.created_at),
+        changeFrequency: "weekly",
+        priority: 0.4,
+      });
+    }
+  } catch {
+    /* 忽略 */
+  }
+
   return entries;
 }