[Backend] Soroban worker: queue for contract submissions

[JayWebtech]

Overview

Isolate Soroban RPC latency/failures from API request thread.

Technical Requirements

• Job queue (DB or Redis) for register_merchant / verify_payment.
• Retry with backoff; dead-letter for manual review.
• Metrics for success/failure rates.

[Sobilo34]

@Sobilo34 has applied to work on this issue as part of the Stellar Wave Program's 3rd wave.

Hello. I am Bilal, a Software engineer with 4 years of experience is web2 and web3

Allow me to work on this issue, I will deliver as soon as possible

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Sobilo34 to this issue.

[dinahmaccodes]

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

Hey, I can do this fast. please let me be assigned

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

[drips-wave]

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

🧑‍💻 @dinahmaccodes: 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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