Changelist

• Fix issue with 30d volume not being decremented
• Fix issue with commissions about to go over the cap

Test Plan

• Test cases

Author/Reviewer Checklist

• If this PR has changes that result in a different app state given the same prior state and transaction list, manually add the state-breaking label.
• If the PR has breaking postgres changes to the indexer add the indexer-postgres-breaking label.
• If this PR isn't state-breaking but has changes that modify behavior in PrepareProposal or ProcessProposal, manually add the label proposal-breaking.
• If this PR is one of many that implement a specific feature, manually label them all feature:[feature-name].
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• Manually add any of the following labels: refactor, chore, bug.

Summary by CodeRabbit

Release Notes

• New Features

  • Added affiliate attribution tracking with support for referrer and referee volume attribution in 30-day rolling periods.
  • Enhanced affiliate statistics to include attributed volume metrics alongside existing revenue tracking.
  • Affiliate info queries now return 30-day rolling attributed volume data.

• Bug Fixes

  • Fixed affiliate revenue share calculations to properly enforce configured per-user caps across all scenarios.

• Improvements

  • Deprecated staked coins requirement in affiliate tier configuration; volume-based metrics now primary focus.

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This is an automatic backport of pull request #3250 done by [Mergify](https://mergify.com).