`Topic`

字段

字段名	类型	格式	是否必填
`id`	integer		必填
`parentId`	integer \| null		必填
`depth`	integer		必填
`title`	string		必填
`author`	CommentAuthor		必填
`createdAt`	string \| null	date-time
`replyCount`	integer		必填
`mine`	boolean		必填
`canRename`	boolean		必填
`canDelete`	boolean		必填

示例 JSON

{
    "id": 0,
    "parentId": 0,
    "depth": 0,
    "title": "string",
    "author": {
        "id": 0,
        "name": "string",
        "avatarUrl": "https://example.com/"
    },
    "createdAt": "2026-01-01T00:00:00+00:00",
    "replyCount": 0,
    "mine": false,
    "canRename": false,
    "canDelete": false
}