新增頭像圖片上傳

components/admin/user-management.tsx

@@ -1355,6 +1355,7 @@ export function UserManagement() {
               <TabsContent value="info" className="space-y-4">
                 <div className="flex items-center space-x-4">
                   <Avatar className="w-16 h-16">
+                    <AvatarImage src={selectedUser.avatar} />
                     <AvatarFallback className="bg-gradient-to-r from-blue-600 to-purple-600 text-white text-xl">
                       {selectedUser.name ? selectedUser.name.charAt(0) : selectedUser.email.charAt(0).toUpperCase()}
                     </AvatarFallback>