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/app/post/[id]/page.tsx

@@ -35,7 +35,8 @@ import RoleBadge from "@/components/RoleBadge";
 import MarkdownBody from "@/components/MarkdownBody";
 import ContentLockGate from "@/components/ContentLockGate";
 import PostAttachments from "@/components/PostAttachments";
-import PostInteractPanels from "@/components/PostInteractPanels";
+import PostInteractPanels, { QuestionStatusCard } from "@/components/PostInteractPanels";
+import AcceptedAnswerCard from "@/components/AcceptedAnswerCard";
 import { canModerateBoard } from "@/lib/roles";
 import { IconComment, IconEye } from "@/components/Icons";
 import { normalizePostType, postTypeLabel, contentAccessLabel, typeStatusLabel, typeStatusClass } from "@/lib/postMeta";
@@ -479,6 +480,24 @@ export default async function PostDetailPage({ params, searchParams }: PageProps
         ? ("bounty" as const)
         : null;
 
+  const acceptedAnswer =
+    post.question?.accepted_answer || post.bounty?.accepted_answer || null;
+  const acceptedAnswerVariant =
+    postType === "bounty" && post.bounty?.accepted_answer
+      ? ("bounty" as const)
+      : ("question" as const);
+  const questionState =
+    postType === "question"
+      ? post.question ?? {
+          solved: false,
+          accepted_comment_id: 0,
+          accepted_floor: 0,
+          can_accept: canManageTyped,
+          can_solve: canManageTyped,
+          can_reopen: false,
+        }
+      : null;
+
   const jsonLd = {
     "@context": "https://schema.org",
     "@type": "DiscussionForumPosting",
@@ -494,6 +513,20 @@ export default async function PostDetailPage({ params, searchParams }: PageProps
       interactionType: { "@type": "ReadAction" },
       userInteractionCount: post.view_count,
     },
+    ...(acceptedAnswer &&
+      !acceptedAnswer.deleted &&
+      !post.content_locked && {
+        acceptedAnswer: {
+          "@type": "Comment",
+          text: acceptedAnswer.content,
+          dateCreated: acceptedAnswer.created_at,
+          author: {
+            "@type": "Person",
+            name: acceptedAnswer.user.nickname || acceptedAnswer.user.username,
+          },
+          url: `#comment-${acceptedAnswer.id}`,
+        },
+      }),
   };
 
   // 目录项与 Markdown 标题按渲染顺序一一对应（extractToc 顺序 == 文档顺序）
@@ -650,26 +683,6 @@ export default async function PostDetailPage({ params, searchParams }: PageProps
                 </div>
               )}
 
-              <PostInteractPanels
-                postId={post.id}
-                question={
-                  postType === "question"
-                    ? post.question ?? {
-                        solved: false,
-                        accepted_comment_id: 0,
-                        accepted_floor: 0,
-                        can_accept: canManageTyped,
-                        can_solve: canManageTyped,
-                        can_reopen: false,
-                      }
-                    : post.question
-                }
-                poll={post.poll}
-                bounty={post.bounty}
-                lottery={post.lottery}
-                loggedIn={!!me.user}
-              />
-
               {post.content_locked ? (
                 <ContentLockGate
                   postId={post.id}
@@ -689,6 +702,25 @@ export default async function PostDetailPage({ params, searchParams }: PageProps
                 <PostAttachments postId={post.id} items={post.attachments || []} />
               )}
 
+              {/* 类型特殊块（投票/悬赏/抽奖/问答）统一放正文最下方 */}
+              <PostInteractPanels
+                postId={post.id}
+                poll={post.poll}
+                bounty={post.bounty}
+                lottery={post.lottery}
+                loggedIn={!!me.user}
+              />
+              {!post.content_locked && acceptedAnswer ? (
+                <AcceptedAnswerCard
+                  answer={acceptedAnswer}
+                  variant={acceptedAnswerVariant}
+                  postId={post.id}
+                  canReopen={!!post.question?.can_reopen}
+                />
+              ) : questionState ? (
+                <QuestionStatusCard postId={post.id} state={questionState} />
+              ) : null}
+
               {/* 文末点赞：分隔线后居中，唯一的点赞入口（作者行不再放置） */}
               <div
                 className="mt-9 pt-7 flex justify-center"
@@ -729,9 +761,11 @@ export default async function PostDetailPage({ params, searchParams }: PageProps
                   post.bounty?.accepted_comment_id ||
                   0
                 }
-                winnerUserIds={
+                winnerCommentIds={
                   post.lottery?.drawn
-                    ? (post.lottery.winners || []).map((w) => w.id)
+                    ? (post.lottery.winners || [])
+                        .map((w) => w.comment_id || 0)
+                        .filter((id) => id > 0)
                     : []
                 }
               />