feat: 优化首页帖子列表并新增右侧栏最新注册组件

首页列表精简 meta 与统计展示，板块色标前移并淡化；有回复时显示最后回复人。右侧栏新增最新注册（4 列头像网格），友链改为标签块并排换行。

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

frontend/src/components/PostListItem.tsx

@@ -1,45 +1,48 @@
 import { memo } from 'react';
 import { useNavigate } from 'react-router-dom';
-import { Eye, Image as ImageIcon, MessageCircle, ThumbsUp } from 'lucide-react';
+import { MessageCircle } from 'lucide-react';
+import BoardBadge from '@/components/BoardBadge';
 import FeaturedIcon from '@/components/FeaturedIcon';
 import UserLink from '@/components/UserLink';
 import type { PostItem } from '../api/types';
 import type { FeedSort } from './FeedSortBar';
 import { useForumLimits } from '../hooks/useForumLimits';
 import { formatTime } from '../utils/content';
-import { postPath } from '../utils/permalink';
+import { boardPath, postPath } from '../utils/permalink';
 import { toPostImageThumbSrc } from '../utils/postContent';
 import { excerptFromHTML, firstImageFromHTML } from '../utils/seoText';
-import { parseTags } from './TagInput';
 
 interface Props {
   post: PostItem;
   sort?: FeedSort;
+  /** 当前板块 id，>0 时隐藏行内板块色标（避免板块页重复） */
+  boardId?: number;
   onSelect: (id: number) => void;
 }
 
-function PostListItem({ post, sort = 'latest', onSelect }: Props) {
+function PostListItem({ post, sort = 'latest', boardId = 0, onSelect }: Props) {
   const nav = useNavigate();
   const { limits } = useForumLimits();
   const feedStyle = limits.feed_list_style ?? 'title';
   const showExcerpt = feedStyle === 'excerpt' || feedStyle === 'thumbnail';
   const showThumb = feedStyle === 'thumbnail';
+  const titleOnly = feedStyle === 'title';
 
   const initial = post.user?.nickname?.[0] || '?';
-  const timeLabel = sort === 'reply'
-    ? (post.last_reply_at
-      ? `${formatTime(post.last_reply_at)} 回复`
-      : '暂无回复')
+  const timeLabel = sort === 'reply' && !post.last_reply_at
+    ? '暂无回复'
     : formatTime(post.created_at);
+  const lastReplyName = post.last_reply_user?.nickname?.trim()
+    || post.last_reply_user?.username?.trim()
+    || post.last_reply_guest_nick?.trim()
+    || '';
+  const showLastReply = !!post.last_reply_at && (!!post.last_reply_user || !!lastReplyName);
   const commentCount = post.comment_count ?? 0;
-  const likeCount = post.like_count ?? 0;
-  const viewCount = post.view_count ?? 0;
   const href = postPath(post.id);
   const firstImage = firstImageFromHTML(post.content || '');
   const thumbSrc = showThumb && firstImage ? toPostImageThumbSrc(firstImage) : null;
   const excerpt = showExcerpt ? excerptFromHTML(post.content || '', 60) : '';
-  const showImageIcon = !!firstImage && !thumbSrc;
-  const tagList = parseTags(post.tags || '').slice(0, 3);
+  const showBoardBadge = !!post.board && boardId !== post.board.id;
 
   const openPost = () => onSelect(post.id);
   const onKeyDown = (e: React.KeyboardEvent) => {
@@ -108,57 +111,53 @@ function PostListItem({ post, sort = 'latest', onSelect }: Props) {
 
   const metaLeft = (
     <div className="post-meta-left">
-      <UserLink user={post.user} stopPropagation className="post-meta-author" showBadges={false} />
-      <span className="post-meta-sep" aria-hidden>·</span>
-      <span className="post-meta-time">{timeLabel}</span>
-      {post.board && (
-        <>
-          <span className="post-meta-sep" aria-hidden>·</span>
-          <span className="post-meta-board">{post.board.name}</span>
-        </>
-      )}
-      {tagList.map(t => (
+      {showBoardBadge && post.board && (
         <button
-          key={t}
           type="button"
-          className="post-list-tag"
-          title={`筛选标签：${t}`}
+          className="post-list-board-btn"
+          title={`进入板块：${post.board.name}`}
           onClick={(e) => {
             e.stopPropagation();
-            nav(`/?tag=${encodeURIComponent(t)}`);
+            nav(boardPath(post.board!.id, limits));
           }}
         >
-          #{t}
+          <BoardBadge board={post.board} className="post-list-board-badge" />
         </button>
-      ))}
+      )}
+      <UserLink user={post.user} stopPropagation className="post-meta-author" showBadges={false} />
+      <span className="post-meta-sep post-meta-sep--before-time" aria-hidden>·</span>
+      <span className="post-meta-time post-meta-time--created">{timeLabel}</span>
+      {showLastReply && (
+        <span className="post-meta-last-reply">
+          <span className="post-meta-last-reply-arrow" aria-hidden>←</span>
+          {post.last_reply_user ? (
+            <UserLink
+              user={post.last_reply_user}
+              stopPropagation
+              className="post-meta-last-reply-user"
+              showBadges={false}
+            />
+          ) : (
+            <span className="post-meta-last-reply-user">{lastReplyName}</span>
+          )}
+          <span className="post-meta-last-reply-time">{formatTime(post.last_reply_at!)}</span>
+        </span>
+      )}
     </div>
   );
 
   const stats = (
     <div className="post-stats">
-      {showImageIcon && (
-        <span className="post-stat post-stat--media" title="含图片">
-          <ImageIcon aria-hidden />
-        </span>
-      )}
       <span className={`post-stat${commentCount === 0 ? ' post-stat--zero' : ''}`} title="评论">
         <MessageCircle aria-hidden />
         {commentCount}
       </span>
-      <span className={`post-stat${likeCount === 0 ? ' post-stat--zero' : ''}`} title="点赞">
-        <ThumbsUp aria-hidden />
-        {likeCount}
-      </span>
-      <span className={`post-stat${viewCount === 0 ? ' post-stat--zero' : ''}`} title="浏览">
-        <Eye aria-hidden />
-        {viewCount}
-      </span>
     </div>
   );
 
   return (
     <div
-      className={`post-row post-row--v2${thumbSrc ? ' post-row--has-thumb' : ''}`}
+      className={`post-row post-row--v2${titleOnly ? ' post-row--title-only' : ''}${thumbSrc ? ' post-row--has-thumb' : ''}`}
       role="link"
       tabIndex={0}
       onClick={openPost}

frontend/src/components/PostListSkeleton.tsx

@@ -8,7 +8,7 @@ export function feedListRowEstimate(style: FeedListStyle): number {
   switch (style) {
     case 'excerpt': return 68;
     case 'thumbnail': return 72;
-    default: return 52;
+    default: return 64;
   }
 }
 
@@ -21,13 +21,17 @@ interface Props {
 export default function PostListSkeleton({ count = 8, listStyle = 'title' }: Props) {
   const showExcerpt = listStyle === 'excerpt' || listStyle === 'thumbnail';
   const showThumb = listStyle === 'thumbnail';
+  const titleOnly = listStyle === 'title';
 
   return (
     <div className="post-list-skeleton" aria-busy="true" aria-label="加载中">
       {Array.from({ length: count }, (_, i) => {
         const hasThumb = showThumb && i % 3 === 0;
         return (
-          <div key={i} className={`post-row post-row--v2 post-row--skeleton${hasThumb ? ' post-row--has-thumb' : ''}`}>
+          <div
+            key={i}
+            className={`post-row post-row--v2 post-row--skeleton${titleOnly ? ' post-row--title-only' : ''}${hasThumb ? ' post-row--has-thumb' : ''}`}
+          >
             <Skeleton className="skeleton--avatar skeleton--avatar-v2" />
             {hasThumb ? (
               <div className="post-main post-main--with-thumb">
@@ -36,14 +40,15 @@ export default function PostListSkeleton({ count = 8, listStyle = 'title' }: Pro
                   {showExcerpt && (
                     <Skeleton className="skeleton--excerpt skeleton--excerpt-v2" style={{ width: `${72 + (i % 3) * 8}%` }} />
                   )}
-                  <Skeleton className="skeleton--meta-line" style={{ width: `${45 + (i % 3) * 10}%` }} />
+                  <div className="post-meta-left post-meta-left--skeleton">
+                    <Skeleton className="skeleton--board-badge" />
+                    <Skeleton className="skeleton--meta-line" style={{ width: `${45 + (i % 3) * 10}%` }} />
+                  </div>
                 </div>
                 <div className="post-aside">
                   <Skeleton className="skeleton--thumb skeleton--thumb-tall" />
                   <div className="post-stats">
                     <Skeleton className="skeleton--stat" />
-                    <Skeleton className="skeleton--stat" />
-                    <Skeleton className="skeleton--stat" />
                   </div>
                 </div>
               </div>
@@ -56,11 +61,12 @@ export default function PostListSkeleton({ count = 8, listStyle = 'title' }: Pro
                   )}
                 </div>
                 <div className="post-meta">
-                  <Skeleton className="skeleton--meta-line" style={{ width: `${45 + (i % 3) * 10}%` }} />
+                  <div className="post-meta-left post-meta-left--skeleton">
+                    <Skeleton className="skeleton--board-badge" />
+                    <Skeleton className="skeleton--meta-line" style={{ width: `${45 + (i % 3) * 10}%` }} />
+                  </div>
                   <div className="post-stats">
                     <Skeleton className="skeleton--stat" />
-                    <Skeleton className="skeleton--stat" />
-                    <Skeleton className="skeleton--stat" />
                   </div>
                 </div>
               </div>

frontend/src/components/RightPanel.tsx

@@ -1,9 +1,9 @@
 import { useMemo } from 'react';
-import { ListTree, MessageCircle, Tags, Link2 } from 'lucide-react';
+import { ListTree, MessageCircle, Tags, Link2, UserPlus } from 'lucide-react';
 import { useLocation, useSearchParams, useNavigate } from 'react-router-dom';
 import { Skeleton } from '@/components/ui/skeleton';
 import { Button } from '@/components/ui/button';
-import type { AsideWidget, RecentComment, TagCount, User, ForumStats, FriendLink } from '../api/types';
+import type { AsideWidget, RecentComment, RecentUser, TagCount, User, ForumStats, FriendLink } from '../api/types';
 import type { PostHeading } from '../utils/postHeadings';
 import { useSiteBranding } from '../hooks/useSiteBranding';
 import { formatShortDateTime, formatTime } from '../utils/content';
@@ -25,6 +25,7 @@ export type PostDetailAside = {
 
 interface Props {
   recentComments: RecentComment[];
+  recentUsers: RecentUser[];
   tags?: TagCount[];
   tagsLoading?: boolean;
   stats?: ForumStats | null;
@@ -53,8 +54,22 @@ function CommentSkeleton() {
   );
 }
 
+function UserSkeleton() {
+  return (
+    <div className="widget-recent-users-grid" aria-busy="true" aria-label="用户加载中">
+      {Array.from({ length: 8 }, (_, i) => (
+        <div key={i} className="widget-recent-user-cell widget-recent-user-cell--skeleton">
+          <Skeleton className="skeleton--recent-user-avatar" />
+          <Skeleton className="skeleton--recent-user-name" style={{ width: `${48 + (i % 3) * 10}%` }} />
+        </div>
+      ))}
+    </div>
+  );
+}
+
 export default function RightPanel({
   recentComments,
+  recentUsers,
   tags = [],
   tagsLoading = false,
   stats = null,
@@ -69,6 +84,7 @@ export default function RightPanel({
   const [params] = useSearchParams();
   const activeTag = params.get('tag') || '';
   const commentList = recentComments?.slice(0, 6) ?? [];
+  const userList = recentUsers?.slice(0, 8) ?? [];
   const friendLinks = (branding.friend_links ?? []).filter(
     (l: FriendLink) => l.name?.trim() && l.url?.trim(),
   );
@@ -118,7 +134,7 @@ export default function RightPanel({
                 申请
               </Button>
             </div>
-            <div className="widget-card-body">
+            <div className="widget-card-body widget-card-body--friend-links">
               {friendLinks.length === 0 ? (
                 <div className="widget-empty">暂无友情链接</div>
               ) : (
@@ -126,7 +142,9 @@ export default function RightPanel({
                   <ul className="widget-friend-links-list">
                     {friendLinks.slice(0, 8).map((link: FriendLink) => (
                       <li key={`${link.name}-${link.url}`}>
-                        <a href={link.url} target="_blank" rel="noopener noreferrer">{link.name}</a>
+                        <a href={link.url} target="_blank" rel="noopener noreferrer" title={link.name}>
+                          {link.name}
+                        </a>
                       </li>
                     ))}
                   </ul>
@@ -212,6 +230,41 @@ export default function RightPanel({
             </div>
           </div>
         );
+      case 'recent_users':
+        return (
+          <div key="recent_users" className="widget-card widget-card--users">
+            <div className="widget-card-head">
+              <UserPlus className="widget-card-icon widget-card-icon--users" aria-hidden />
+              最新注册
+            </div>
+            <div className="widget-card-body widget-card-body--users">
+              {loading && userList.length === 0 ? (
+                <UserSkeleton />
+              ) : userList.length === 0 ? (
+                <div className="widget-empty">暂无用户</div>
+              ) : (
+                <div className="widget-recent-users-grid">
+                  {userList.map(item => (
+                    <UserLink
+                      key={item.id}
+                      user={{ id: item.id, nickname: item.nickname, avatar: item.avatar }}
+                      className="widget-recent-user-cell"
+                      showBadges={false}
+                      title={item.nickname}
+                    >
+                      <span className="widget-recent-user-avatar" aria-hidden>
+                        {item.avatar
+                          ? <img src={item.avatar} alt="" loading="lazy" decoding="async" />
+                          : (item.nickname?.[0] || '?')}
+                      </span>
+                      <span className="widget-recent-user-name">{item.nickname}</span>
+                    </UserLink>
+                  ))}
+                </div>
+              )}
+            </div>
+          </div>
+        );
       default:
         return null;
     }

frontend/src/components/VirtualPostList.tsx

@@ -263,7 +263,7 @@ export default function VirtualPostList({
                     transform: `translateY(${offsetY}px)`,
                   }}
                 >
-                  <PostListItem post={post} sort={sort} onSelect={onSelect} />
+                  <PostListItem post={post} sort={sort} boardId={boardId} onSelect={onSelect} />
                 </div>
               );
             })}

frontend/src/components/admin/AsideWidgetList.tsx

@@ -10,6 +10,10 @@ const WIDGET_META: Record<AsideWidgetId, { label: string; hint: string }> = {
     label: '最新评论',
     hint: '在右侧栏展示最近回复',
   },
+  recent_users: {
+    label: '最新注册',
+    hint: '在右侧栏展示最近注册的用户',
+  },
   friend_links: {
     label: '友情链接',
     hint: '关闭后不在右侧栏展示，友链仍可在「友情链接」页面查看与申请',