New document (#5299)

* add new doc (#5175)

Co-authored-by: dreamer6680 <146868355@qq.com>

* Test docs (#5235)

* fix: change the page of doc

* chore: add new dependencies, update global styles/layout, optimize docs, add Feishu & GitHub icons, update API examples

* fix: docs/index 404 not found

* Update environment variable names, optimize styles, add new API routes, fix component styles, adjust documentation, and update GitHub and Feishu icons

* update readme

* feat: add a linkfastgpt compontent

* feat: update new doc

* fix:remove unuse page and redirect homepage to docs (#5288)

* fix：remove some unuse doc

* fix: redirect homepage to doc

* git ignore

* fix:navbar to index (#5295)

* sidbar

* fix: navtab unlight (#5298)

* doc

---------

Co-authored-by: dreamer6680 <1468683855@qq.com>
Co-authored-by: dreamer6680 <146868355@qq.com>

document/content/docs/introduction/guide/dashboard/workflow/reply.mdx

@@ -0,0 +1,18 @@
+---
+title: 指定回复
+description: FastGPT 指定回复模块介绍
+---
+
+## 特点
+
+- 可重复添加（防止复杂编排时线太乱，重复添加可以更美观）
+- 可手动输入
+- 可外部输入
+- 会输出结果给客户端
+
+指定回复模块通常用户特殊状态回复，回复内容有两种：
+
+1. 一种是手动输入固定内容。
+2. 一种是通过变量引用。
+
+![](/imgs/specialreply.png)