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/app/layout.config.tsx

@@ -0,0 +1,36 @@
+import type { BaseLayoutProps } from 'fumadocs-ui/layouts/shared';
+import { i18n } from '@/lib/i18n';
+
+/**
+ * Shared layout configurations
+ *
+ * you can customise layouts individually from:
+ * Home Layout: app/(home)/layout.tsx
+ * Docs Layout: app/docs/layout.tsx
+ */
+export const baseOptions = (locale: string): BaseLayoutProps => {
+  return {
+    themeSwitch: {
+      enabled: true,
+      mode: 'light-dark'
+    },
+    nav: {
+      title: (
+        <div className="flex flex-col">
+          <div className="flex flex-row items-center gap-2">
+            <img src="/FastGPT-full.svg" alt="FastGPT" width={49} height={48} />
+          </div>
+          <div className="relative flex flex-row items-center gap-2 h-10 top-14"> 12321</div>
+        </div>
+      )
+    },
+    i18n: {
+      languages: ['zh-CN', 'en'],
+      defaultLanguage: 'zh-CN',
+      hideLocale: 'always'
+    },
+    searchToggle: {
+      enabled: true
+    }
+  };
+};