modify storage get encoding

[tnarp]

default encoding is utf-8. settings.yaml can modify the encoding, but not use it.

Description

[Provide a brief description of the changes made in this pull request.]

Related Issues

[Reference any related issues or tasks that this pull request addresses.]

Proposed Changes

[List the specific changes made in this pull request.]

Checklist

• [ ] I have tested these changes locally.
• [ ] I have reviewed the code changes.
• [ ] I have updated the documentation (if necessary).
• [ ] I have added appropriate unit tests (if applicable).

Additional Notes

[Add any additional notes or context that may be helpful for the reviewer(s).]