feat: enhance SmartLink component for better external link handling

- support object format of href
- improve URL string extraction logic
- add proper type checking for href prop
- ensure external links use string format

components/SmartLink.js

@@ -1,23 +1,38 @@
 import Link from 'next/link'
 import { siteConfig } from '@/lib/config'
 
-// 保留允许传给 <a> 的属性
-const filterDOMProps = (props) => {
-  const {
-    passHref,
-    legacyBehavior,
-    ...rest
-  } = props;
-  return rest;
-};
+// 过滤 <a> 标签不能识别的 props
+const filterDOMProps = props => {
+  const { passHref, legacyBehavior, ...rest } = props
+  return rest
+}
+
 const SmartLink = ({ href, children, ...rest }) => {
   const LINK = siteConfig('LINK')
-  const isExternal = href.startsWith('http') && !href.startsWith(LINK)
+
+  // 获取 URL 字符串用于判断是否是外链
+  let urlString = ''
+
+  if (typeof href === 'string') {
+    urlString = href
+  } else if (
+    typeof href === 'object' &&
+    href !== null &&
+    typeof href.pathname === 'string'
+  ) {
+    urlString = href.pathname
+  }
+
+  const isExternal = urlString.startsWith('http') && !urlString.startsWith(LINK)
 
   if (isExternal) {
+    // 对于外部链接，必须是 string 类型
+    const externalUrl =
+      typeof href === 'string' ? href : new URL(href.pathname, LINK).toString()
+
     return (
       <a
-        href={href}
+        href={externalUrl}
         target='_blank'
         rel='noopener noreferrer'
         {...filterDOMProps(rest)}>
@@ -26,8 +41,9 @@ const SmartLink = ({ href, children, ...rest }) => {
     )
   }
 
+  // 内部链接（可为对象形式）
   return (
-    <Link href={href} {...rest} >
+    <Link href={href} {...rest}>
       {children}
     </Link>
   )