修改生成路径的接口的返还数据结构判定语句

lib/features/devices/data/datasources/impl/path_http_datasource_impl.dart

@@ -27,8 +27,9 @@ class PathHttpDatasourceImpl implements PathHttpDatasource {
     print('响应体: ${response.body}');
     try {
     final decoded = jsonDecode(response.body) as Map<String, dynamic>;
-    if (decoded['code'] == 200) {
-      final pathJson = decoded['path'];
+    if (decoded['success'] == true) {
+      final pathJson = decoded['data']?['path'];
+      print('路径数据: $pathJson'); // 调试输出路径数据
       if (pathJson == null) {
         throw Exception('API returned null for "path"');
       }
@@ -38,10 +39,12 @@ class PathHttpDatasourceImpl implements PathHttpDatasource {
       final List<dynamic> jsonData = pathJson;
       return jsonData.map((item) => DeviceAddPathPointModel.fromJson(item)).toList();
     } else {
-      throw Exception('Failed to load path: ${response.statusCode}');
+      final apiCode = decoded['code'] ?? -1;
+      final msg = decoded['msg'] ?? '未知错误';
+      throw Exception('API 错误 [$apiCode]: $msg');
     }
   } catch (e) {
-  throw Exception('Network error: $e');
+    throw Exception('Network error: $e');
   }
   }
 }