Validate MD5 Checksum Before Upload

[leoraba]

Summary

Ensure the file MD5 checksum matches before starting the upload to S3.

Issues

• File-transfer Issue #15

Description of Changes

Validate the file MD5 checksum against the Metadata Server (Song) to prevent mismatched checksums between Song and Score file manifests before initiating the upload.

Score-server

• Validate the file MD5 checksum provided in the upload payload against the Metadata file registered in Song. This validation occurs prior to starting any upload to the Object Storage. If there is an MD5 mismatch, an error is thrown, and detailed logs are generated.

Common

• Upgrade AWS SDK to the latest version 1 available (as of Dec 2025).
• Fix broken Docker commands used primarily in Makefile for testing purposes.

Readiness Checklist

• Self Review
  • I have performed a self review of code
  • I have run the application locally and manually tested the feature
  • I have checked all updates to correct typos and misspellings
• Formatting
  • Code follows the project style guide
  • Autmated code formatters (ie. Prettier) have been run
• Local Testing
  • Successfully built all packages locally
  • Successfully ran all test suites, all unit and integration tests pass
• Updated Tests
  • Unit and integration tests have been added that describe the bug that was fixed or the features that were added
• Documentation
  • All new environment variables added to .env.schema file and documented in the README
  • All changes to server HTTP endpoints have open-api documentation
  • All new functions exported from their module have TSDoc comment documentation