docs: add v4.15.4 release notes (#7343)

document/content/self-host/upgrading/4-15/4154.en.mdx

+---
+title: 'V4.15.4 (In Progress)'
+description: 'FastGPT V4.15.4 Release Notes'
+---
+
+## 🚀 New Features
+
+## ⚙️ Improvements
+
+## 🐛 Fixes
+
+1. Fixed an issue where Chatbox displayed system tool errors during streaming responses.
+2. Fixed an issue where plain-text tool responses in full run details could be incorrectly parsed as Markdown, causing formatting issues.

document/content/self-host/upgrading/4-15/4154.mdx

+---
+title: 'V4.15.4(进行中)'
+description: 'FastGPT V4.15.4 更新说明'
+---
+
+## 🚀 新增内容
+
+## ⚙️ 优化
+
+## 🐛 修复
+
+1. chatbox 流输出时候，不应该展示系统工具的错误。
+2. 完整运行详情，纯文本的工具响应 UI 可能会被 Markdown 错误解析，格式错乱。

document/content/self-host/upgrading/4-15/meta.en.json

 {
   "title": "4.15.x",
   "description": "",
-  "pages": ["4153", "4152", "4151", "41500", "41507", "41506", "41505", "41504", "41503", "41502", "41501"]
+  "pages": ["4154", "4153", "4152", "4151", "41500", "41507", "41506", "41505", "41504", "41503", "41502", "41501"]
 }

document/content/self-host/upgrading/4-15/meta.json

 {
   "title": "4.15.x",
   "description": "",
-  "pages": ["4153", "4152", "4151", "41500", "41507", "41506", "41505", "41504", "41503", "41502", "41501"]
+  "pages": ["4154", "4153", "4152", "4151", "41500", "41507", "41506", "41505", "41504", "41503", "41502", "41501"]
 }

document/content/toc.en.mdx

@@ -163,6 +163,7 @@ description: FastGPT Toc
 - [/en/self-host/upgrading/4-15/4151](/en/self-host/upgrading/4-15/4151)
 - [/en/self-host/upgrading/4-15/4152](/en/self-host/upgrading/4-15/4152)
 - [/en/self-host/upgrading/4-15/4153](/en/self-host/upgrading/4-15/4153)
+- [/en/self-host/upgrading/4-15/4154](/en/self-host/upgrading/4-15/4154)
 - [/en/self-host/upgrading/outdated/40](/en/self-host/upgrading/outdated/40)
 - [/en/self-host/upgrading/outdated/41](/en/self-host/upgrading/outdated/41)
 - [/en/self-host/upgrading/outdated/4100](/en/self-host/upgrading/outdated/4100)

document/content/toc.mdx

@@ -166,6 +166,7 @@ description: FastGPT 文档目录
 - [/self-host/upgrading/4-15/4151](/self-host/upgrading/4-15/4151)
 - [/self-host/upgrading/4-15/4152](/self-host/upgrading/4-15/4152)
 - [/self-host/upgrading/4-15/4153](/self-host/upgrading/4-15/4153)
+- [/self-host/upgrading/4-15/4154](/self-host/upgrading/4-15/4154)
 - [/self-host/upgrading/outdated/40](/self-host/upgrading/outdated/40)
 - [/self-host/upgrading/outdated/41](/self-host/upgrading/outdated/41)
 - [/self-host/upgrading/outdated/4100](/self-host/upgrading/outdated/4100)

document/data/doc-last-modified.json

@@ -167,8 +167,8 @@
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   "content/plugin/system-tool-development.en.mdx": "2026-07-02T11:54:55+08:00",
   "content/plugin/system-tool-development.mdx": "2026-07-02T11:54:55+08:00",
-  "content/self-host/config/env.en.mdx": "2026-07-17T19:17:14+08:00",
-  "content/self-host/config/env.mdx": "2026-07-17T19:17:14+08:00",
+  "content/self-host/config/env.en.mdx": "2026-07-20T17:52:36+08:00",
+  "content/self-host/config/env.mdx": "2026-07-20T17:52:36+08:00",
   "content/self-host/config/model/intro.en.mdx": "2026-06-04T16:10:15+08:00",
   "content/self-host/config/model/intro.mdx": "2026-06-04T16:10:15+08:00",
   "content/self-host/config/model/minimax.en.mdx": "2026-06-03T10:40:17+08:00",
@@ -318,12 +318,12 @@
   "content/self-host/upgrading/4-15/41506.mdx": "2026-07-01T12:13:58+08:00",
   "content/self-host/upgrading/4-15/41507.en.mdx": "2026-06-30T17:31:43+08:00",
   "content/self-host/upgrading/4-15/41507.mdx": "2026-06-30T17:31:43+08:00",
-  "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/4-15/4151.en.mdx": "2026-07-21T12:01:28+08:00",
+  "content/self-host/upgrading/4-15/4151.mdx": "2026-07-21T12:01:28+08:00",
   "content/self-host/upgrading/4-15/4152.en.mdx": "2026-07-17T19:17:14+08:00",
-  "content/self-host/upgrading/4-15/4152.mdx": "2026-07-17T19:34:15+08:00",
-  "content/self-host/upgrading/4-15/4153.en.mdx": "2026-07-18T11:22:45+08:00",
-  "content/self-host/upgrading/4-15/4153.mdx": "2026-07-18T11:22:45+08:00",
+  "content/self-host/upgrading/4-15/4152.mdx": "2026-07-18T12:51:59+08:00",
+  "content/self-host/upgrading/4-15/4153.en.mdx": "2026-07-18T12:51:59+08:00",
+  "content/self-host/upgrading/4-15/4153.mdx": "2026-07-18T12:51:59+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",
@@ -464,6 +464,6 @@
   "content/self-host/upgrading/outdated/499.mdx": "2026-05-07T15:06:40+08:00",
   "content/self-host/upgrading/upgrade-intruction.en.mdx": "2026-04-26T21:08:47+08:00",
   "content/self-host/upgrading/upgrade-intruction.mdx": "2026-04-26T21:08:47+08:00",
-  "content/toc.en.mdx": "2026-07-18T11:22:45+08:00",
-  "content/toc.mdx": "2026-07-18T11:22:45+08:00"
+  "content/toc.en.mdx": "2026-07-18T12:51:59+08:00",
+  "content/toc.mdx": "2026-07-18T12:51:59+08:00"
 }
\ No newline at end of file