feat(export): 添加逻辑路径构建功能支持文件管理

- 在导出服务中实现_build_logical_path方法用于构建相对路径
- 更新数据集文件记录以包含logical_path字段
- 在比率任务服务中实现build_logical_path静态方法
- 将逻辑路径信息添加到数据集文件记录中
- 规范化路径处理并替换反斜杠为正斜杠
- 添加无效路径验证防止目录遍历安全问题

runtime/datamate-python/app/module/generation/service/export_service.py

@@ -74,6 +74,7 @@ class SynthesisDatasetExporter:
             file_path = os.path.join(base_path, archived_file_name)
             os.makedirs(os.path.dirname(file_path), exist_ok=True)
             self._write_jsonl(file_path, records)
+            logical_path = self._build_logical_path(base_path, file_path)
 
             # 计算文件大小
             try:
@@ -85,6 +86,7 @@ class SynthesisDatasetExporter:
                 dataset_id=dataset.id,
                 file_name=archived_file_name,
                 file_path=file_path,
+                logical_path=logical_path,
                 file_type="jsonl",
                 file_size=file_size,
                 last_access_time=datetime.datetime.now(),
@@ -158,3 +160,12 @@ class SynthesisDatasetExporter:
             raise SynthesisExportError("Dataset path is empty")
         os.makedirs(dataset.path, exist_ok=True)
         return dataset.path
+
+    @staticmethod
+    def _build_logical_path(dataset_path: str, file_path: str) -> str:
+        normalized_dataset_path = os.path.abspath(dataset_path)
+        normalized_file_path = os.path.abspath(file_path)
+        relative_path = os.path.relpath(normalized_file_path, normalized_dataset_path).replace("\\", "/").strip()
+        if relative_path in ("", ".") or relative_path.startswith("../"):
+            raise SynthesisExportError(f"Invalid logical path generated for file: {file_path}")
+        return relative_path