Contracts - Add storage TTL/bump management for persistent commitment entries

[1nonlypiece]

Contracts - Add storage TTL/bump management for persistent commitment entries

Description

The escrow contract writes commitments to persistent storage in contracts/escrow/src/lib.rs without bumping their TTL, risking entry expiry for long-duration commitments. Add TTL bump logic so active commitments persist for at least their full duration.

Requirements and context

• Must be secure, tested, and documented
• Should be efficient and easy to review
• Bump persistent entry TTL on create and on each mutation
• Tie the TTL to the commitment maturity
• Avoid unnecessary bumps to control fees
• Add tests in contracts/escrow/src/test.rs exercising the bump calls

Suggested execution

• Fork the repo and create a branch
• git checkout -b feature/storage-ttl-bump
• Implement changes
  • Add TTL bump calls in the save/index_owner helpers in contracts/escrow/src/lib.rs
  • Add tests in contracts/escrow/src/test.rs
  • Document TTL strategy in contracts/README.md
  • Add comments on fee tradeoffs
• Test and commit
  • Run tests, cover edge cases
  • Include test output and notes

Example commit message

feat: add persistent storage TTL bumps for commitments

Guidelines

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

[Dayz-tech-co]

@Dayz-tech-co has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Can you please assign this to me ?

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Dayz-tech-co to this issue.

[drips-wave]

Congratulations, @Dayz-tech-co! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

🧑‍💻 @Dayz-tech-co: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

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