[Engine] Add secure treasury outflow time-lock

[N-thnI]

Description

Core development task for the vero-core-engine module.

Problem Statement

Developing a hardened, audit-ready foundation for the Vero Protocol control plane.

Technical Requirements

• Requirement: Adherence to Soroban/Rust security standards.
• Requirement: Seamless integration with existing contract architecture.

Implementation Guide

• Suggested Approach: Follow the core protocol integration architecture specs.
• Branch Strategy: To begin work, create a feature branch using: git checkout -b feat/engine-core-5
• Affected Areas: src/core/

Acceptance Criteria

• Task successfully implemented
• CI/CD verification passed

Security & Audit Considerations

• Must undergo ZK-ready integrity check.

Definition of Done

• Code reviewed
• CI/CD passed

[GBOYEE]

Hello! I can work on this. I'll add a secure treasury outflow time-lock with configurable delay and cancellation. PR incoming.

[Meet-hybrid]

Can I work on this please?

[grantfox-oss]

🦊 GrantFox — @Meet-hybrid has been assigned to this issue as part of the Official Campaign campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #103)
2. Your PR will be reviewed by the Vero-protocol maintainers

Good luck! Track your progress on GrantFox.

[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox as part of the Official Campaign campaign!

@Meet-hybrid's PR #149 was approved and merged by @N-thnI.

🏆 @Meet-hybrid: You earned 35 FoxPoints for this contribution! Your current tier: Explorer (856 total points). Track your full progress on GrantFox.

👏 Great work, @Meet-hybrid! Keep contributing to Vero-protocol.