feat: add a test on enum size

[Its-Just-Nans]

• The PR title must conform to Conventional Commits and start with one of the types specified by the Angular convention.

[amazon-q-developer]

The test adds valuable size validation for the ZipFileReader enum to ensure it remains memory-efficient. Two improvements needed:

1. Remove the debug eprintln! statements that will clutter test output
2. Add a comment explaining the 32-byte threshold for future maintainers

These changes will make the test cleaner and more maintainable without affecting functionality.

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