首次提交：姜十三论坛

后端 Go+Gin：认证/CSRF/限流、板块、帖子、评论、点赞、通知、用户资料、置顶推荐；前端 Next.js 16：发帖/编辑/删除、搜索、分页、点赞、通知中心、设置；基础设施 docker-compose 与配置模板；添加 .gitignore 与专有许可证（保留所有权利）

frontend/app/post/[id]/page.tsx

@@ -0,0 +1,98 @@
+import { Metadata } from "next";
+import Link from "next/link";
+import ReactMarkdown from "react-markdown";
+import { fetchPostDetail, fetchComments } from "@/lib/api";
+import CommentSection from "@/components/CommentSection";
+import PostActions from "@/components/PostActions";
+import LikeButton from "@/components/LikeButton";
+
+interface PageProps {
+  params: Promise<{ id: string }>;
+}
+
+export async function generateMetadata({ params }: PageProps): Promise<Metadata> {
+  const { id } = await params;
+  try {
+    const { post } = await fetchPostDetail(id);
+    return {
+      title: `${post.title} - 姜十三论坛`,
+      description: post.content.slice(0, 160),
+      openGraph: {
+        title: post.title,
+        description: post.content.slice(0, 160),
+        type: "article",
+      },
+    };
+  } catch {
+    return { title: "帖子不存在 - 姜十三论坛" };
+  }
+}
+
+export default async function PostDetailPage({ params }: PageProps) {
+  const { id } = await params;
+  const { post } = await fetchPostDetail(id);
+  const { comments } = await fetchComments(id);
+
+  const jsonLd = {
+    "@context": "https://schema.org",
+    "@type": "DiscussionForumPosting",
+    headline: post.title,
+    articleBody: post.content,
+    datePublished: post.created_at,
+    dateModified: post.updated_at,
+    author: {
+      "@type": "Person",
+      name: post.user.nickname,
+    },
+    commentCount: post.comment_count,
+    interactionStatistic: {
+      "@type": "InteractionCounter",
+      interactionType: { "@type": "ReadAction" },
+      userInteractionCount: post.view_count,
+    },
+  };
+
+  return (
+    <article className="max-w-3xl mx-auto">
+      <script
+        type="application/ld+json"
+        dangerouslySetInnerHTML={{ __html: JSON.stringify(jsonLd) }}
+      />
+
+      <nav className="text-sm mb-4" style={{ color: "var(--text-secondary)" }}>
+        <Link href="/" className="hover:underline">首页</Link>
+        <span className="mx-2">/</span>
+        <Link href={`/board/${post.board.id}`} className="hover:underline">{post.board.name}</Link>
+      </nav>
+
+      <div className="flex items-center gap-2 mb-3">
+        {post.pinned > 0 && (
+          <span className="text-xs px-2 py-0.5 rounded bg-amber-100 text-amber-700">置顶</span>
+        )}
+        {post.recommended && (
+          <span className="text-xs px-2 py-0.5 rounded bg-rose-100 text-rose-700">推荐</span>
+        )}
+      </div>
+      <h1 className="text-3xl font-bold mb-4">{post.title}</h1>
+
+      <div className="flex items-center justify-between gap-4 mb-6 pb-4 border-b" style={{ borderColor: "var(--border)" }}>
+        <div className="flex items-center gap-4" style={{ color: "var(--text-secondary)" }}>
+          <Link href={`/u/${post.user.id}`} className="hover:underline" style={{ color: "var(--primary)" }}>
+            {post.user.nickname}
+          </Link>
+          <span>{new Date(post.created_at).toLocaleString("zh-CN")}</span>
+          <span>👁 {post.view_count}</span>
+          <span>💬 {post.comment_count}</span>
+          <LikeButton postId={id} liked={post.liked} likeCount={post.like_count} />
+        </div>
+        <PostActions postId={id} authorId={post.user.id} pinned={post.pinned} recommended={post.recommended} />
+      </div>
+
+      <div className="prose-content mb-8" style={{ color: "var(--text)" }}>
+        <ReactMarkdown>{post.content}</ReactMarkdown>
+      </div>
+
+      <CommentSection postId={id} comments={comments} />
+    </article>
+  );
+}