feat(posts): 类型特殊块移至正文下，采纳答案卡与中奖楼层按评论标记

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

frontend/components/CommentSection.tsx

@@ -55,8 +55,8 @@ interface CommentSectionProps {
   /** 悬赏或问答：可采纳时在评论旁显示采纳按钮（二者按帖子类型二选一） */
   acceptMode?: "bounty" | "question" | null;
   acceptedCommentId?: number;
-  /** 抽奖已开奖：中奖用户 ID，用于楼层旁显示「中奖」徽标 */
-  winnerUserIds?: number[];
+  /** 抽奖已开奖：中奖楼层评论 ID（每名中奖者仅其最早主评一条） */
+  winnerCommentIds?: number[];
   /** 全站是否开放评论；缺省 true。关闭时隐藏发评/回复入口 */
   allowComments?: boolean;
 }
@@ -115,10 +115,10 @@ export default function CommentSection({
   user,
   acceptMode = null,
   acceptedCommentId = 0,
-  winnerUserIds = [],
+  winnerCommentIds = [],
   allowComments: allowCommentsProp = true,
 }: CommentSectionProps) {
-  const winnerIdSet = new Set(winnerUserIds.filter((id) => id > 0));
+  const winnerCommentIdSet = new Set(winnerCommentIds.filter((id) => id > 0));
   const router = useRouter();
   const [content, setContent] = useState("");
   // 内联回复目标：在该评论下方就地发子评论（同一时间只有一个回复框）
@@ -875,7 +875,7 @@ export default function CommentSection({
               {acceptedCommentId === c.id && (
                 <span className="badge-accepted shrink-0">已采纳</span>
               )}
-              {winnerIdSet.has(c.user.id) && (
+              {winnerCommentIdSet.has(c.id) && (
                 <span className="badge-winner shrink-0">中奖楼层</span>
               )}
               {floor && (