Implement Soroban Native XLM Token Handling

[ayshadogo]

Description:
Interact with the Stellar native XLM token (wrapped as a Soroban token) within contracts.

Tasks:

• Use the Soroban token interface to interact with native XLM
• In the Donation contract, call token_client.transfer(from, to, amount) to move XLM
• In the Withdrawal contract, verify the contract holds sufficient balance before approving
• Use soroban_sdk::token::Client for all token interactions

Acceptance Criteria:
Donations transfer XLM from donor to contract; withdrawals transfer from contract to recipient.

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[gloskull]

Hi, I’d love to work on this issue. I have 4 years of experience across backend, frontend, full-stack, and smart contract development. I understand the task clearly and can deliver a clean, efficient, well-tested solution on time, with strong focus on code quality and maintainability. My PR will be submitted in under 10 hours.

[ustaxs]

@ustaxs has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Good day

I have read the requirements of this issue and i am confident that i can solve this

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

[playmaker410]

@playmaker410 has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

I’d love to take this on. I have hands-on experience with Rust, Soroban, Cairo, and TypeScript, and I’m confident I can deliver a solid solution within 24 hours.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @playmaker410 to this issue.

[dhareymu]

@dhareymu has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Good morning maintainer, abeg gimme this project 🙏🙏😭😭

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

[drips-wave]

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

🧑‍💻 @ustaxs: 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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