feat: trading tiers

[czarcas7ic]

Closes: #XXX

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Testing and Verifying

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This change is a trivial rework / code cleanup without any test coverage.

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Documentation and Release Note

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[czarcas7ic]

Open the partial feat and closing because focus must be put elsewhere, but wanted to provide the code here in case someone else has capacity to pick it up.

[github-actions]

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