feat: Check the metadata and the file

### Describe the enhancement requested

Currently, our metadata and storage files are separate, and the metadata can be modified. This provides great convenience, but it will be very troublesome if an error occurs.

We need to provide a checking tool to check whether the metadata are valid and the consistency between the storage files and the metadata.

### Component(s)

Format, Other

No files, tests, or entry points are named. Start by reviewing the format component's handling of metadata and storage files, then determine how metadata validity and cross-file consistency should be checked. Done means a checking tool exists that reports invalid metadata and inconsistencies between metadata and storage files.

Written by the indexing model from the issue text.