chore: 去掉未上线前的旧兼容垫片，板块流收口到首页

鉴权只认 cookie、SEO 只走 Next、sort 与推荐对齐；删除 Bearer、Go sitemap、post_type 回填等冗余路径。

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/app/page.tsx

@@ -5,7 +5,9 @@ import { PenSquare, SearchX, MessagesSquare } from "lucide-react";
 import {
   fetchPosts,
   fetchOverview,
+  fetchBoardSidebar,
   type OverviewResponse,
+  type BoardSidebarResponse,
 } from "@/lib/api";
 import { authCookieHeader } from "@/lib/cookies";
 import { getMeCached } from "@/lib/serverData";
@@ -15,6 +17,11 @@ import FeedTabs, { type FeedSort } from "@/components/home/FeedTabs";
 import FeedNewTip from "@/components/home/FeedNewTip";
 import { WorkspaceNav, WorkspaceNavMobile } from "@/components/home/WorkspaceNav";
 import { CommunityPanels, CommunityPanelsMobile } from "@/components/home/CommunityPanels";
+import {
+  BoardPanels,
+  BoardPanelsMobile,
+  BoardMissingPanel,
+} from "@/components/home/BoardPanels";
 
 export const metadata: Metadata = {
   title: "姜十三论坛 · 技术讨论社区",
@@ -27,8 +34,6 @@ interface HomePageProps {
 
 function normalizeSort(v?: string): FeedSort {
   if (v === "new" || v === "recommended") return v;
-  // 兼容旧的 ?sort=hot 链接：落到最接近的推荐帖
-  if (v === "hot") return "recommended";
   return "latest";
 }
 
@@ -81,22 +86,30 @@ export default async function HomePage({ searchParams }: HomePageProps) {
     page,
     20,
     isSearch || boardId <= 0 ? undefined : boardId,
-    sort === "recommended" ? "hot" : sort,
+    sort,
     keyword,
     sort === "recommended",
     cookie
   );
   // 聚合面板失败不阻塞帖子流
   const overviewPromise: Promise<OverviewResponse | null> = fetchOverview(cookie).catch(() => null);
+  const boardSidebarPromise: Promise<BoardSidebarResponse | null> =
+    boardId > 0 && !isSearch
+      ? fetchBoardSidebar(boardId, cookie).catch(() => null)
+      : Promise.resolve(null);
 
-  const [me, postsData, overview] = await Promise.all([
+  const [me, postsData, overview, boardSidebar] = await Promise.all([
     mePromise,
     postsPromise,
     overviewPromise,
+    boardSidebarPromise,
   ]);
   const user = me.user;
   const boards = overview?.boards ?? [];
-  const activeBoard = boards.find((b) => b.id === boardId) || null;
+  const activeBoard = boards.find((b) => b.id === boardId) || boardSidebar?.board || null;
+  const showBoardPanels = boardId > 0 && !isSearch;
+  // boardId 有效但接口失败 → 显示简卡；成功则板级右栏；否则全站右栏
+  const boardPanelsMissing = showBoardPanels && !boardSidebar;
 
   // 搜索态：单栏占满，无 Tabs/侧栏
   if (isSearch) {
@@ -193,31 +206,61 @@ export default async function HomePage({ searchParams }: HomePageProps) {
           />
         </div>
 
-        {/* 右栏：社区面板 */}
-        {overview && (
-          <CommunityPanels
-            stats={overview.stats}
-            hot={overview.hot}
-            activeUsers={overview.active_users}
-            announcements={overview.announcements}
-            newUsers={overview.new_users}
-            checkin={overview.checkin ?? undefined}
-          />
+        {/* 右栏：选中板块时切板级面板，否则全站社区面板 */}
+        {showBoardPanels ? (
+          boardSidebar ? (
+            <BoardPanels
+              board={boardSidebar.board}
+              moderators={boardSidebar.moderators}
+              stats={boardSidebar.stats}
+              hot={boardSidebar.hot}
+              activeUsers={boardSidebar.active_users}
+              checkin={boardSidebar.checkin ?? undefined}
+            />
+          ) : boardPanelsMissing ? (
+            <BoardMissingPanel />
+          ) : null
+        ) : (
+          overview && (
+            <CommunityPanels
+              stats={overview.stats}
+              hot={overview.hot}
+              activeUsers={overview.active_users}
+              announcements={overview.announcements}
+              newUsers={overview.new_users}
+              checkin={overview.checkin ?? undefined}
+            />
+          )
         )}
       </div>
 
       {/* 窄屏：面板下沉到帖子流之后 */}
-      {overview && (
-        <div className="mt-6">
-          <CommunityPanelsMobile
-            stats={overview.stats}
-            hot={overview.hot}
-            activeUsers={overview.active_users}
-            announcements={overview.announcements}
-            newUsers={overview.new_users}
-            checkin={overview.checkin ?? undefined}
-          />
-        </div>
+      {showBoardPanels ? (
+        boardSidebar ? (
+          <div className="mt-6">
+            <BoardPanelsMobile
+              board={boardSidebar.board}
+              moderators={boardSidebar.moderators}
+              stats={boardSidebar.stats}
+              hot={boardSidebar.hot}
+              activeUsers={boardSidebar.active_users}
+              checkin={boardSidebar.checkin ?? undefined}
+            />
+          </div>
+        ) : null
+      ) : (
+        overview && (
+          <div className="mt-6">
+            <CommunityPanelsMobile
+              stats={overview.stats}
+              hot={overview.hot}
+              activeUsers={overview.active_users}
+              announcements={overview.announcements}
+              newUsers={overview.new_users}
+              checkin={overview.checkin ?? undefined}
+            />
+          </div>
+        )
       )}
     </div>
   );