Summary

This PR introduces content checksum verification (MD5, SHA-256), fixes multipart checksum handling, and adds checksum exposure in HeadObject and metadata filtering. It also refactors replication structures into rustfs_filemeta and addresses a file metadata transition bug. Additionally, it adapts to typed ETag support from s3s.

Changes

• Add content checksum verification: MD5 and SHA-256
• Fix multipart checksum logic and consistency
• Expose checksum in HeadObject responses; filter object metadata output
• Refactor replication structs into rustfs_filemeta
• Fix file metadata transition bug during replication
• Adapt to s3s typed ETag support

Type of Change

• New Feature
• Bug Fix
• Documentation
• Performance Improvement
• Test/CI
• Refactor
• Other:

Related Issues

#594 #581

Summary of Changes

Checklist

• I have read and followed the CONTRIBUTING.md guidelines
• Passed make pre-commit
• Added/updated necessary tests
• Documentation updated (if needed)
• CI/CD passed (if applicable)

Impact

• Breaking change (compatibility)
• Requires doc/config/deployment update
• Other impact:

Additional Notes

Thank you for your contribution! Please ensure your PR follows the community standards (CODE_OF_CONDUCT.md) and sign the CLA if this is your first contribution.