完善角色与消息权限：收紧板管内容处置，彻底删除仅站长，并统一管理删帖/评弹窗。

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

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

@@ -684,6 +684,7 @@ export default async function PostDetailPage({ params, searchParams }: PageProps
                   <PostActions
                     postId={id}
                     authorId={post.user.id}
+                    authorRole={post.user.role}
                     boardId={post.board_id}
                     pinned={post.pinned}
                     recommended={post.recommended}