重构路径规划生成接口使其完全符合 Clean Architecture 规范

lib/features/devices/data/datasources/path_http_datasource.dart

@@ -0,0 +1,7 @@
+import '../models/device_add_path_point_model.dart';
+
+abstract class PathHttpDatasource {
+  Future<List<DeviceAddPathPointModel>> generatePathRaw({
+    required Map<String, dynamic> body,
+  });
+}