[Contract] RemittanceNFT — burn_internal() Doesn't Remove TransferCooldown

[ogazboiz]

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Problem

When burn_internal() cleans up user state, it removes Metadata, Score, ScoreHistory, Seized, DefaultCount, Burned, and RemintApproval — but NOT TransferCooldown. If a burned user later remints, the old cooldown could still apply unexpectedly.

Fix

Add env.storage().persistent().remove(&DataKey::TransferCooldown(user.clone())); to burn_internal().

[DSOTec]

@DSOTec has applied to work on this issue as part of the Stellar Wave Program's 3rd wave.

Hi, I would love to work on issue. Kindly assign

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Congratulations, @zuru122! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on March 30, 2026.

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[drips-wave]

Congratulations, @DSOTec! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on March 30, 2026.

🧑‍💻 @DSOTec: 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

When opening a PR, please link it to this issue to ensure it gets tracked accurately. Points are awarded when this issue is marked as completed by the maintainer.

🤠 Repo maintainers: Please keep an eye on the contributor's progress and review their work before the due date. You can manage this issue, including adjusting its complexity and points, here.

🌊 Happy Wave 🌊