升级帖子编辑与 Feed 体验：TipTap 富文本、修订历史、排序与编辑时限。

将 Markdown 编辑器替换为 TipTap WYSIWYG，新增帖子修订记录与 diff 展示；首页支持最新/回复排序与本地缓存；后台可配置编辑时限与锁定帖子；侧边栏整合板块导航并优化 Feed 布局。

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

embed_static/static/spa/assets/PinnedIcon-CWAQCHB6.js

@@ -0,0 +1 @@
+import{j as n}from"./react-vendor-CFzzFOsg.js";import{c as i}from"./index-L-Mx2Hle.js";import{N as s}from"./ui-vendor-DGgNN2YO.js";function m({className:o,size:r=16}){return n.jsx(s,{className:i("post-pinned-icon",o),size:r,fill:"currentColor","aria-label":"置顶",role:"img"})}export{m as P};