feat: remove trailing zeroes from legacy dec

[hmoragrega]

Description

Closes: #XXXX

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Author Checklist

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• confirmed the correct type prefix in the PR title
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• reviewed state machine logic
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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch f/dec-trailing-zeroes

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[github-actions]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.