fix: upgrade LiteParse to 2.0.8

Author: c121914yu

document/content/self-host/upgrading/4-15/4152.en.mdx

@@ -42,6 +42,7 @@ The previous values are no longer supported. Using `default` or `pi` will fail e
 5. Files generated by system tools no longer expire after 1 hour. They are now long-lived and deleted together with the conversation.
 6. The registration button is now hidden in Sync Mode.
 7. Improved the performance of the fade-in effect for streaming output in chat dialogs.
+8. Upgraded `LiteParse` to fix PDF parsing errors under concurrent workloads.
 
 ### Streaming Markdown Rendering Improvements
 

document/content/self-host/upgrading/4-15/4152.mdx

@@ -40,6 +40,7 @@ V4.15.2 起，`AGENT_ENGINE` 使用新的枚举值。升级前，请按下表修
 5. 系统工具生成的文件不会 1 小时过期，改成长期，跟随会话一起删除。
 6. 同步模式下不显示注册用户按钮。
 7. 对话框流输出，淡入效果性能优化。
+8. 升级 `LiteParse` 版本，解决并发解析 PDF 报错问题。
 
 ## 🐛 修复
 

document/data/doc-last-modified.json

@@ -321,7 +321,7 @@
   "content/self-host/upgrading/4-15/4151.en.mdx": "2026-07-07T21:14:28+08:00",
   "content/self-host/upgrading/4-15/4151.mdx": "2026-07-07T21:14:28+08:00",
   "content/self-host/upgrading/4-15/4152.en.mdx": "2026-07-16T13:18:15+08:00",
-  "content/self-host/upgrading/4-15/4152.mdx": "2026-07-16T13:18:15+08:00",
+  "content/self-host/upgrading/4-15/4152.mdx": "2026-07-16T17:25:54+08:00",
   "content/self-host/upgrading/outdated/40.en.mdx": "2026-04-26T21:08:47+08:00",
   "content/self-host/upgrading/outdated/40.mdx": "2026-04-26T21:08:47+08:00",
   "content/self-host/upgrading/outdated/41.en.mdx": "2026-04-26T21:08:47+08:00",

pnpm-lock.yaml

@@ -25,7 +25,7 @@ catalog:
   '@dnd-kit/core': ^6.3.1
   '@emotion/react': ^11
   '@emotion/styled': ^11
-  '@llamaindex/liteparse': 2.0.5
+  '@llamaindex/liteparse': 2.0.8
   '@modelcontextprotocol/sdk': ^1
   '@node-rs/jieba': 2.0.1
   '@svgr/webpack': ^6.5.1