[Soroban] Update Royalty Recipient

[Eniola3321]

Labels

soroban royalty enhancement

Summary

Allow creators to change the royalty recipient address.

Background

Users may migrate to a new wallet and need future royalties sent there.

Tasks
Add update_royalty_recipient().
Verify current recipient.
Update stored address.
Emit RoyaltyRecipientUpdated.
Swagger / API Integration
Document PATCH /nfts/:id/royalty-recipient.
Add request/response examples.
Acceptance Criteria

Only the current recipient can update.

Event is emitted.

New address is used for future royalties.

[MrG139]

@MrG139 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Please Assign I'm Super ready to solve the issue

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[Sheebazz]

@Sheebazz has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi, I can work on this. I'll implement the royalty recipient update flow, including authorization checks, state updates, event emission, and Swagger documentation, along with tests to validate the required behavior.

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

[Mosas2000]

@Mosas2000 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi maintainer, will love to work on this.

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Congratulations, @Mosas2000! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

🧑‍💻 @Mosas2000: 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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[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox!

@Mosas2000's PR #699 was approved and merged by @Eniola3321.

🏆 @Mosas2000: You earned 35 FoxPoints for this contribution! Your current tier: Builder (1,027 total points). Track your full progress on GrantFox.

👏 Great work, @Mosas2000! Keep contributing to ANYTECHS.

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This issue has been completed by @Mosas2000 as part of the Stellar Wave Program's 7th Wave 🥳

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