Implement multi-asset sweep in SweepController

[phertyameen]

Issue #21: Implement multi-asset sweep in SweepController

Category: SweepController
Repo: bridgelet-core (Soroban / Rust)

Description

The interface mentions SweepExecutedMulti event. Implement the multi-asset sweep: iterate over all assets held by the ephemeral account and transfer each to the destination in a single transaction.

Acceptance Criteria

• Rust implementation complete
• cargo test passing
• Integration test on local Stellar sandbox passing
• Docs updated (docs/ or inline rustdoc)
• Reviewed and merged

[vaishnavidesai09]

@vaishnavidesai09 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hey maintainer assign me this issue....

ℹ️ Repo Maintainers: To accept this application, review their application or assign @vaishnavidesai09 to this issue.

[zainabbaba31-source]

@zainabbaba31-source has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi, I’m a new contributor to the project and I’d love to take on this issue. I’ve reviewed the description and I’m interested in contributing to the project. I’ll follow the existing codebase patterns, add tests where necessary, and submit a clean PR for review. I’d appreciate the opportunity to work on this. Thank you!

ℹ️ Repo Maintainers: To accept this application, review their application or assign @zainabbaba31-source to this issue.

[Caneryy]

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

Hi, I'd like to work on this issue please.

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[drips-wave]

Congratulations, @vaishnavidesai09! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

🧑‍💻 @vaishnavidesai09: 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 as part of the Official Campaign | FWC26 campaign!

@vaishnavidesai09's PR #400 was approved and merged by @phertyameen.

🏆 @vaishnavidesai09: You earned 35 FoxPoints for this contribution! Your current tier: Explorer (201 total points). Track your full progress on GrantFox.

👏 Great work, @vaishnavidesai09! Keep contributing to bridgelet-org.

[drips-wave]

This issue has been completed by @vaishnavidesai09 as part of the Stellar Wave Program's 7th Wave 🥳

😎 @vaishnavidesai09: You earned 200 Points for completing this issue! After the current Wave ends, you'll be eligible for a percentage of the Wave's reward pool based on the percentage of total points you've earned. Learn more here. You can also Leave a review to share your experience working on this issue.

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