feat: 平台治理与对象存储增强，审批中心与运行日志整合

- 新增 storage/policy.py 落盘策略：按大小/类型决定文件存 MinIO 或内联数据库
- 数据处理源文件与生成结果写入 MinIO 并登记 storage_objects，支持失败回滚
- 算力节点训练产物按版本归档到 MinIO，登记 model_artifacts
- 数据转换任务输入输出对象化，支持从 MinIO 读写
- 新增审批中心（申请/我的/策略）、组织与权限、运行日志整合页面
- schema 与 docker 配置、前端路由侧边栏、治理文档同步更新

Co-Authored-By: Claude <noreply@anthropic.com>

backend/app/modules/data_process/store/base.py

@@ -247,14 +247,19 @@ def _source_storage_descriptor(
         or f"db://data-process/{task_id}/{file_id}/v1"
     )
     expected_local_prefix = f"local://data-process/{task_id}/{file_id}/v1/"
+    expected_minio_prefix = f"minio://data-process/{task_id}/{file_id}/v1/"
     expected_database_reference = f"db://data-process/{task_id}/{file_id}/v1"
     if storage_object_id.startswith(expected_local_prefix) and len(storage_object_id) > len(
         expected_local_prefix
     ):
         storage_backend = "local"
+    elif storage_object_id.startswith(expected_minio_prefix) and len(storage_object_id) > len(
+        expected_minio_prefix
+    ):
+        storage_backend = "minio"
     elif storage_object_id == expected_database_reference:
         storage_backend = "database"
-    elif storage_object_id.startswith(("local://data-process/", "db://data-process/")):
+    elif storage_object_id.startswith(("local://data-process/", "minio://data-process/", "db://data-process/")):
         raise DataProcessStoreError("source storage object owner mismatch")
     else:
         raise DataProcessStoreError("unsupported source storage object reference")