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/page.tsx

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+import Link from "next/link";
+import { Metadata } from "next";
+import { fetchPosts, fetchBoards } from "@/lib/api";
+import Pagination from "@/components/Pagination";
+
+export const metadata: Metadata = {
+  title: "姜十三论坛 - 技术分享与讨论社区",
+  description: "姜十三论坛，分享技术、讨论问题、交流心得的社区",
+  openGraph: {
+    title: "姜十三论坛 - 技术分享与讨论社区",
+    description: "姜十三论坛，分享技术、讨论问题、交流心得的社区",
+    type: "website",
+  },
+};
+
+interface HomePageProps {
+  searchParams: Promise<{ q?: string; page?: string }>;
+}
+
+export default async function HomePage({ searchParams }: HomePageProps) {
+  const { q, page: pageStr } = await searchParams;
+  const keyword = q?.trim() || "";
+  const page = Math.max(1, parseInt(pageStr || "1", 10) || 1);
+  const [postsData, boardsData] = await Promise.all([
+    fetchPosts(page, 20, undefined, "latest", keyword),
+    fetchBoards(),
+  ]);
+
+  return (
+    <div className="grid grid-cols-1 md:grid-cols-4 gap-6">
+      {/* 主内容：帖子列表 */}
+      <div className="md:col-span-3">
+        <h1 className="text-2xl font-bold mb-4">
+          {keyword ? `搜索结果："${keyword}"` : "最新帖子"}
+        </h1>
+        <div className="space-y-3">
+          {postsData.posts.map((post) => (
+            <Link
+              key={post.id}
+              href={`/post/${post.id}`}
+              className="block p-4 rounded-lg border hover:shadow-md transition-shadow"
+              style={{ borderColor: "var(--border)", background: "var(--bg)" }}
+            >
+              <div className="flex items-center gap-2 mb-2">
+                <span
+                  className="text-xs px-2 py-0.5 rounded"
+                  style={{ background: "var(--bg-secondary)", color: "var(--primary)" }}
+                >
+                  {post.board.name}
+                </span>
+                {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>
+              <h2 className="font-semibold mb-1 hover:underline" style={{ color: "var(--text)" }}>
+                {post.title}
+              </h2>
+              <div className="flex items-center gap-4 text-sm" style={{ color: "var(--text-secondary)" }}>
+                <Link href={`/u/${post.user.id}`} className="hover:underline" style={{ color: "var(--primary)" }}>
+                  {post.user.nickname}
+                </Link>
+                <span>{new Date(post.created_at).toLocaleDateString("zh-CN")}</span>
+                <span>💬 {post.comment_count}</span>
+                <span>👁 {post.view_count}</span>
+              </div>
+            </Link>
+          ))}
+          {postsData.posts.length === 0 && (
+            <p className="text-center py-12" style={{ color: "var(--text-secondary)" }}>
+              {keyword ? "没有找到相关帖子" : "暂无帖子，来发第一篇吧！"}
+            </p>
+          )}
+        </div>
+        <Pagination
+          total={postsData.total}
+          page={page}
+          size={20}
+          basePath="/"
+          query={keyword ? { q: keyword } : {}}
+        />
+      </div>
+
+      {/* 侧边栏：板块列表 */}
+      <aside className="md:col-span-1">
+        <h2 className="text-lg font-bold mb-3">板块</h2>
+        <div className="space-y-2">
+          {boardsData.boards.map((board) => (
+            <Link
+              key={board.id}
+              href={`/board/${board.id}`}
+              className="block p-3 rounded-lg border hover:shadow-sm transition-shadow"
+              style={{ borderColor: "var(--border)", background: "var(--bg-secondary)" }}
+            >
+              <div className="font-medium" style={{ color: "var(--text)" }}>{board.name}</div>
+              <div className="text-xs mt-1" style={{ color: "var(--text-secondary)" }}>{board.description}</div>
+            </Link>
+          ))}
+        </div>
+      </aside>
+    </div>
+  );
+}