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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/components/LikeButton.tsx

@@ -0,0 +1,50 @@
+"use client";
+
+import { useState } from "react";
+import { Heart } from "lucide-react";
+import { apiToggleLike } from "@/lib/api";
+
+interface LikeButtonProps {
+  postId: string;
+  liked: boolean;
+  likeCount: number;
+}
+
+export default function LikeButton({ postId, liked: initialLiked, likeCount: initialCount }: LikeButtonProps) {
+  const [liked, setLiked] = useState(initialLiked);
+  const [count, setCount] = useState(initialCount);
+  const [loading, setLoading] = useState(false);
+
+  const handleClick = async () => {
+    if (loading) return;
+    setLoading(true);
+    try {
+      const res = await apiToggleLike(postId);
+      if (res.error === "未登录") {
+        window.location.href = "/login";
+        return;
+      }
+      if (typeof res.liked === "boolean") {
+        setLiked(res.liked);
+        setCount(res.like_count ?? count);
+      }
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  return (
+    <button
+      onClick={handleClick}
+      disabled={loading}
+      className={`flex items-center gap-1.5 px-3 py-1.5 rounded-full text-sm font-medium transition-all disabled:opacity-50 ${
+        liked
+          ? "text-red-500 bg-red-50 dark:bg-red-900/20"
+          : "text-gray-500 hover:text-red-500 hover:bg-gray-100 dark:hover:bg-gray-800"
+      }`}
+    >
+      <Heart size={16} fill={liked ? "currentColor" : "none"} />
+      <span>{count}</span>
+    </button>
+  );
+}