Add governance voting hook so share BPS doubles as voting weight on issuer proposals

[thlpkee20-wq]

Description

Many revenue-share offerings grant voting rights proportional to shares. Add a lightweight propose / cast_vote / tally flow keyed on offering_id, using current holder share BPS as voting weight at proposal-snapshot block.

Requirements and context

• Must be secure, tested, and documented
• Should be efficient and easy to review
• Relevant code: Revora-Contracts/src/lib.rs
• Voting weight must be snapshotted at proposal creation, not at vote-cast time

Suggested execution

• Fork the repo and create a branch
• git checkout -b feat/governance-voting-hook
• Implement changes
  • Add Proposal { id, offering_id, snapshot_period, end_ts, for_bps, against_bps }
  • Add propose, cast_vote(proposal_id, for_), tally(proposal_id)
  • Reject votes from blacklisted holders
• Validate security and correctness assumptions

Test and commit

• Run tests
  • cargo test --all
• Cover edge cases
  • Double-vote attempt must be rejected with AlreadyVoted
• Include test output and security notes

Example commit message

feat: add governance voting hook weighted by snapshot share BPS

Guidelines

• Minimum 95 percent test coverage
• Clear documentation
• Timeframe: 96 hours

[kalifabuild-dev]

@kalifabuild-dev has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

hi maitainance kindly assign me to solve this issues

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[drips-wave]

Congratulations, @kalifabuild-dev! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 30, 2026.

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