refactor: overhaul UI for streamlined user experience

Redesign navigation, home overview, user portrait, and valuation pages
with improved functionality and responsive design.

Co-authored-by: null <4804959+fnvtk@users.noreply.github.com>

app/api/auth.ts

@@ -0,0 +1,68 @@
+// API请求工具函数
+import { toast } from "@/components/ui/use-toast"
+
+const API_BASE_URL = process.env.NEXT_PUBLIC_API_BASE_URL || "https://api.example.com"
+
+// 带有认证的请求函数
+export async function authFetch(url: string, options: RequestInit = {}) {
+  const token = localStorage.getItem("token")
+
+  // 合并headers
+  let headers = { ...options.headers }
+
+  // 如果有token，添加到请求头
+  if (token) {
+    headers = {
+      ...headers,
+      Token: `${token}`,
+    }
+  }
+
+  try {
+    const response = await fetch(`${API_BASE_URL}${url}`, {
+      ...options,
+      headers,
+    })
+
+    const data = await response.json()
+
+    // 检查token是否过期（仅当有token时）
+    if (token && (data.code === 401 || data.code === 403)) {
+      // 清除token
+      localStorage.removeItem("token")
+
+      // 暂时不重定向到登录页
+      // if (typeof window !== "undefined") {
+      //   window.location.href = "/login"
+      // }
+
+      console.warn("登录已过期")
+    }
+
+    return data
+  } catch (error) {
+    console.error("API请求错误:", error)
+    toast({
+      variant: "destructive",
+      title: "请求失败",
+      description: error instanceof Error ? error.message : "网络错误，请稍后重试",
+    })
+    throw error
+  }
+}
+
+// 不需要认证的请求函数
+export async function publicFetch(url: string, options: RequestInit = {}) {
+  try {
+    const response = await fetch(`${API_BASE_URL}${url}`, options)
+    return await response.json()
+  } catch (error) {
+    console.error("API请求错误:", error)
+    toast({
+      variant: "destructive",
+      title: "请求失败",
+      description: error instanceof Error ? error.message : "网络错误，请稍后重试",
+    })
+    throw error
+  }
+}