fix(auth): 统一未登录错误提示并优化前端错误处理

修改后端中间件返回的未登录错误提示信息为统一格式
前端API请求添加对401错误的特殊处理，显示服务端返回的具体错误信息

server/internal/api/middleware.go

@@ -100,7 +100,7 @@ func withAuth(apiDomain string) func(http.Handler) http.Handler {
 			// 获取 token
 			token := r.Header.Get("token")
 			if token == "" {
-				http.Error(w, "{\"code\":401,\"message\":\"未提供认证token\",\"data\":null}", http.StatusUnauthorized)
+				http.Error(w, "{\"code\":401,\"message\":\"请先登录\",\"data\":null}", http.StatusUnauthorized)
 				return
 			}
 
@@ -108,7 +108,7 @@ func withAuth(apiDomain string) func(http.Handler) http.Handler {
 			authURL := fmt.Sprintf("%s/auth/admin/dataPermission", apiDomain)
 			req, err := http.NewRequest("GET", authURL, nil)
 			if err != nil {
-				http.Error(w, "{\"code\":500,\"message\":\"创建认证请求失败\",\"data\":null}", http.StatusInternalServerError)
+				http.Error(w, "{\"code\":401,\"message\":\"请先登录\",\"data\":null}", http.StatusUnauthorized)
 				return
 			}
 

web/modules/api.js

@@ -151,6 +151,10 @@ const get = async (endpoint, options = {}) => {
     headers: buildHeaders()
   });
   if (!response.ok) {
+    const data = await response.json().catch(() => ({}));
+    if (response.status === 401 && data.message) {
+      throw new Error(data.message);
+    }
     throw new Error(`请求失败: ${response.status} ${response.statusText}`);
   }
   return response.json();
@@ -179,6 +183,10 @@ const post = async (endpoint, body, options = {}) => {
   });
   
   if (!response.ok) {
+    const data = await response.json().catch(() => ({}));
+    if (response.status === 401 && data.message) {
+      throw new Error(data.message);
+    }
     const errorText = await response.text();
     throw new Error(errorText || `请求失败: ${response.status}`);
   }
@@ -211,6 +219,10 @@ const patch = async (endpoint, body) => {
   });
   
   if (!response.ok) {
+    const data = await response.json().catch(() => ({}));
+    if (response.status === 401 && data.message) {
+      throw new Error(data.message);
+    }
     const errorText = await response.text();
     throw new Error(errorText || `请求失败: ${response.status}`);
   }
@@ -236,6 +248,10 @@ const del = async (endpoint, options = {}) => {
     headers: buildHeaders()
   });
   if (!response.ok) {
+    const data = await response.json().catch(() => ({}));
+    if (response.status === 401 && data.message) {
+      throw new Error(data.message);
+    }
     const errorText = await response.text();
     throw new Error(errorText || `请求失败: ${response.status}`);
   }