feat: 帖子分级置顶（板块/全站）与板块管理员置顶权限、消息管理权限调整

frontend/app/snippets/page.tsx

@@ -1,6 +1,8 @@
 import type { Metadata } from "next";
+import { cookies } from "next/headers";
 import { fetchSnippets, fetchSnippetLanguages, fetchSnippetStats, type SnippetStats } from "@/lib/api";
-import { getPublicSettingsCached } from "@/lib/serverData";
+import { getMeCached, getPublicSettingsCached } from "@/lib/serverData";
+import { authCookieHeader } from "@/lib/cookies";
 import { requestCanonical } from "@/lib/canonicalMeta";
 import { snippetsPath } from "@/lib/urlStyle";
 import SnippetExplorer from "@/components/SnippetExplorer";
@@ -17,6 +19,11 @@ export async function generateMetadata(): Promise<Metadata> {
 export default async function SnippetsPage() {
   const settings = await getPublicSettingsCached();
 
+  // 登录态由服务端判定后下发：客户端组件内再读 cookie 会造成 hydration 不一致。
+  // getMeCached 与 layout 同参调用，命中 React cache 不额外请求后端。
+  const cookie = authCookieHeader(await cookies());
+  const isLoggedIn = !!(await getMeCached(cookie || undefined)).user;
+
   let initialItems: Awaited<ReturnType<typeof fetchSnippets>>["items"] = [];
   let initialTotal = 0;
   let languages: string[] = [];
@@ -43,6 +50,7 @@ export default async function SnippetsPage() {
         languages={languages}
         urlStyle={settings.url_style}
         stats={stats}
+        isLoggedIn={isLoggedIn}
       />
     </div>
   );