#### What type of PR is this?
/area ui
/kind improvement
/milestone 2.21.x
#### What this PR does / why we need it:
Add auto-height prop to formkit textarea to support automatic resizing based on content length.
#### Does this PR introduce a user-facing change?
```release-note
Console 端的部分多行文本输入框支持自动高度。
```
#### What type of PR is this?
/area ui
/kind improvement
/milestone 2.21.x
#### What this PR does / why we need it:
This PR adds frontend support for checking whether an slug already exists when creating posts.
Note:
1. The current implementation isn’t perfect, some actions (like clicking the “Publish” button) don’t check for duplicate slug yet.
2. Slug checking in the user center might not be accurate, since it may not have permission to query all posts.
<img width="695" alt="image" src="https://github.com/user-attachments/assets/baa37a82-49c2-43be-a4d8-0e0f22a9d73b" />
#### Which issue(s) this PR fixes:
Fixes https://github.com/halo-dev/halo/issues/7615
Fixes https://github.com/halo-dev/halo/issues/3332
#### Special notes for your reviewer:
#### Does this PR introduce a user-facing change?
```release-note
创建文章时支持检查别名是否重复
```
#### What type of PR is this?
/area ui
/kind bug
/milestone 2.20.x
#### What this PR does / why we need it:
修复文章自动生成别名不按照别名生成策略生成的问题。
#### Which issue(s) this PR fixes:
Fixes#6913
#### Special notes for your reviewer:
需要测试：
1. 分类、标签创建和更新时的别名生成
2. 文章新建时，别名是否按照生成策略生成。
#### Does this PR introduce a user-facing change?
```release-note
修复文章自动生成别名不按照别名生成策略生成的问题。
```
#### What type of PR is this?
/kind feature
/milestone 2.20.x
/area core
#### What this PR does / why we need it:
支持用户在个人中心管理自己的附件（需要具有对应权限）
Fixes https://github.com/halo-dev/halo/issues/5278
#### Does this PR introduce a user-facing change?
```release-note
支持用户在个人中心管理自己的附件（需要具有对应权限）
```
#### What type of PR is this?
/area ui
/kind improvement
/milestone 2.20.x
#### What this PR does / why we need it:
升级 UI 项目的 Vue 版本至 3.5.x。
#### Does this PR introduce a user-facing change?
```release-note
升级 UI 项目的 Vue 版本至 3.5.x。
```
#### What type of PR is this?
/area ui
/kind improvement
/milestone 2.19.0
#### What this PR does / why we need it:
简化文章设置表单的部分表单项。
<img width="760" alt="image" src="https://github.com/user-attachments/assets/337a728e-8cc6-4c9e-aa85-dc4c64b72de5">
#### Does this PR introduce a user-facing change?
```release-note
简化文章设置表单的部分表单项。
```
#### What type of PR is this?
/area ui
/kind improvement
/milestone 2.17.x
#### What this PR does / why we need it:
重新组织和固定 UI 部分代码的 imports 导入，防止后续因为 imports 的顺序造成不必要的 diff。
基于：https://github.com/halo-dev/halo/pull/6151
#### Does this PR introduce a user-facing change?
```release-note
None
```
#### What type of PR is this?
/kind feature
/area core
/milestone 2.16.x
#### What this PR does / why we need it:
新增文章定时发布功能
#### Which issue(s) this PR fixes:
Fixes#4602
#### Does this PR introduce a user-facing change?
```release-note
新增文章定时发布功能
```
#### What type of PR is this?
/kind improvement
/area ui
#### What this PR does / why we need it:
限定文章或页面中的发布日期中的年份为四位数，方便用户输入四位年份之后自定跳转至月份。
#### How to test it?
测试在 `chrome` 上输入四位年份之后，是否会自动跳转至月份。
#### Which issue(s) this PR fixes:
Fixes#5630
#### Does this PR introduce a user-facing change?
```release-note
限定文章或页面中的发布日期中的年份为四位数
```
Ryan Wang