Optimize prorated refund calculations using native Soroban 128-bit safe math

[elizabetheonoja-art]

Task: Optimize prorated refund calculations using native Soroban 128-bit safe math

Focus Area: Soroban Smart Contract Optimization, Security Hardening, and Reliability.

[Luchistack]

@Luchistack has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

i would love to work on this

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

[jiyiola396-pixel]

@jiyiola396-pixel has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

hi maintainer,
i would like to work on this issue.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @jiyiola396-pixel to this issue.

[drips-wave]

Congratulations, @jiyiola396-pixel! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on April 29, 2026.

🧑‍💻 @jiyiola396-pixel: 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.

Warning

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