Contracts: Add on-chain treasury withdrawal rate limiter with epoch windows

[Junirezz]

Limit treasury withdrawals per epoch with configurable caps and events.

[samlogy1]

@samlogy1 has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

i would love to work on this issue please

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[Clement-coder]

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

Hi, I’m a Full-Stack Software & Blockchain Engineer with experience designing secure treasury controls and Soroban smart contract governance mechanisms.

I’d like to take on this issue. I can implement an epoch-based treasury withdrawal rate limiter with configurable caps, proper event emission, and comprehensive tests to ensure withdrawals remain predictable and secure.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Clement-coder to this issue.

[augustine00z]

@augustine00z has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hi, I’d like to work on this issue.
I can implement an on-chain treasury withdrawal rate limiter using configurable epoch windows and withdrawal caps, emit the necessary events, and add tests to verify limit enforcement, epoch resets, and edge cases.

ETA: 1–2 days

ℹ️ Repo Maintainers: To accept this application, review their application or assign @augustine00z to this issue.

[midexol]

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

Hi, I'd like to work on this

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[success-OG]

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

Hii, i'd like to work on this issue

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[drips-wave]

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

🧑‍💻 @success-OG: 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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