Default Create dp_cloud_server (#526)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **New Features**
* Improved reliability by ensuring necessary directories are created
automatically.
* **Chores**
  * Updated dependency formatting for consistency.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

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Co-authored-by: dingzhaohan <dingzh@dp.tech>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Jinzhe Zeng <jinzhe.zeng@ustc.edu.cn>

Author: 4 people

dpdispatcher/contexts/openapi_context.py

@@ -101,6 +101,7 @@ def __init__(
         self.storage = Tiefblue()
         self.job = Job(client=self.client)
         self.jgid = None
+        os.makedirs(DP_CLOUD_SERVER_HOME_DIR, exist_ok=True)
 
     @classmethod
     def load_from_dict(cls, context_dict):