feat(ui): 增加头像组件错误处理功能

app/components/ui/Avatar.tsx

@@ -1,4 +1,4 @@
-import React from 'react';
+import React, { useState } from 'react';
 
 interface AvatarProps {
   src: string;
@@ -7,11 +7,21 @@ interface AvatarProps {
 }
 
 export function Avatar({ src, alt, className = '' }: AvatarProps) {
+  const [imgSrc, setImgSrc] = useState(src);
+  const [error, setError] = useState(false);
+
+  const handleError = () => {
+    setError(true);
+    // 设置一个默认的头像 URL
+    setImgSrc('/default-avatar.png');
+  };
+
   return (
     <img
-      src={src}
+      src={imgSrc}
       alt={alt}
-      className={`w-8 h-8 rounded-full object-cover ${className}`}
+      className={`w-8 h-8 rounded-full object-cover ${className} ${error ? 'opacity-50' : ''}`}
+      onError={handleError}
     />
   );
 }