Validate on-chain addresses before ethers calls

[RUKAYAT-CODER]

Background

Unvalidated addresses reach ethers calls and produce opaque failures. Validate address format first.

Files to modify (2-3)

src/services/ethersService.ts
src/utils/error-handler.ts

Acceptance Criteria

Implemented across the listed files

Unit/integration tests added or updated and passing

No regression; follows project coding standards

[GABRIELOFGOD]

@GABRIELOFGOD has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Please assign to me, I will fix it.

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

[pimaster900]

@pimaster900 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

I would sincerely love to work on this issue because I have strong experience in working and dealing with complex workflow logic.

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[Blaqkenny]

@Blaqkenny has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

hello Maintainer, please can i work on this issues

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[bellofuad34-ctrl]

@bellofuad34-ctrl has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Good afternoon Rukayat, can I please be assigned this?

ℹ️ Repo Maintainers: To accept this application, review their application or assign @bellofuad34-ctrl to this issue.

[drips-wave]

Congratulations, @Blaqkenny! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on August 31, 2026.

🧑‍💻 @Blaqkenny: 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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