refactor(frontend): 完善SSR鉴权与点赞组件样式优化

1. 修正类型文件导入路径到.dev目录
2. 为API请求添加cookie传递支持，实现SSR用户登录态识别
3. 重构LikeButton组件，新增compact变体适配列表页展示
4. 调整首页和板块页的帖子列表布局，添加点赞按钮
5. 拆分帖子列表点击区域，优化交互体验

frontend/components/LikeButton.tsx

@@ -8,9 +8,10 @@ interface LikeButtonProps {
   postId: string;
   liked: boolean;
   likeCount: number;
+  variant?: "default" | "compact";
 }
 
-export default function LikeButton({ postId, liked: initialLiked, likeCount: initialCount }: LikeButtonProps) {
+export default function LikeButton({ postId, liked: initialLiked, likeCount: initialCount, variant = "default" }: LikeButtonProps) {
   const [liked, setLiked] = useState(initialLiked);
   const [count, setCount] = useState(initialCount);
   const [loading, setLoading] = useState(false);
@@ -33,17 +34,21 @@ export default function LikeButton({ postId, liked: initialLiked, likeCount: ini
     }
   };
 
+  const sizing = variant === "compact" ? "px-2 py-1 gap-1" : "px-3 py-1.5 gap-1.5";
+  const iconSize = variant === "compact" ? 14 : 16;
+
   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 ${
+      title={liked ? "取消点赞" : "点赞"}
+      className={`flex items-center ${sizing} 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"} />
+      <Heart size={iconSize} fill={liked ? "currentColor" : "none"} />
       <span>{count}</span>
     </button>
   );