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/components/docs/linkFastGPT.tsx

@@ -0,0 +1,58 @@
+'use client';
+
+import React, { useMemo } from 'react';
+
+type FastGPTLinkProps = {
+  children: React.ReactNode;
+  className?: string;
+  style?: React.CSSProperties;
+  onClick?: (e: React.MouseEvent<HTMLAnchorElement>) => void;
+};
+
+const defaultStyles: React.CSSProperties = {
+  color: '#3370ff',
+  textDecoration: 'none',
+  transition: 'all 0.2s ease-in-out'
+};
+
+const hoverStyles: React.CSSProperties = {
+  color: '#2152d9',
+  textDecoration: 'underline'
+};
+
+const FastGPTLink = ({ children, className, style, onClick, ...props }: FastGPTLinkProps) => {
+  const href = useMemo(() => {
+    return process.env.NEXT_PUBLIC_DOMAIN ?? 'https://fastgpt.io';
+  }, []);
+
+  const [isHovered, setIsHovered] = React.useState(false);
+
+  const combinedStyles = {
+    ...defaultStyles,
+    ...(isHovered ? hoverStyles : {}),
+    ...style
+  };
+
+  return (
+    <a
+      href={href}
+      target="_blank"
+      rel="noopener noreferrer"
+      className={className}
+      style={combinedStyles}
+      onMouseEnter={() => setIsHovered(true)}
+      onMouseLeave={() => setIsHovered(false)}
+      onClick={(e) => {
+        if (onClick) {
+          e.preventDefault();
+          onClick(e);
+        }
+      }}
+      {...props}
+    >
+      {children}
+    </a>
+  );
+};
+
+export default React.memo(FastGPTLink);