#638 Refactor SorobanExceptionFilter to use error type mapping

[vic-Gray]

Area: code-quality · Effort: S\n\nWhat: Replace fragile substring matching with a typed error code map.\n\nWhy: String matching breaks silently when SDK error messages change.\n\nHints:\n- backend/src/common/filters/soroban-exception.filter.ts\n- Create an ERROR_MAP: Record<SorobanErrorCode, HttpStatus> object

[ositaemmanuel653-netizen]

@ositaemmanuel653-netizen has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hi! I’m a full-stack developer with a strong UI/UX background. I’d love to handle this issue and can deliver a clean, reliable solution. Kindly assign it to me.

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[dykdee]

@dykdee has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

I would like to work on this issue because replacing substring matching with a typed error map will make the exception filter more reliable and easier to maintain. It will also reduce the chance of errors being handled incorrectly when SDK messages change.

I have experience with backend error handling, refactoring fragile logic, and improving code quality without changing the existing API behavior. I can review the current SorobanExceptionFilter, create a clear ERROR_MAP structure, update the filter to use typed error codes, and make sure the existing error responses still work as expected.

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[Tobiloba0]

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Can I work on this task?

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[DeePrincipal-dev-lang]

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Hi, I'd like to work on this issue. I'm a prompt engineer — detail-oriented, reliable, and comfortable delivering quality work on time. I've reviewed the issue and I'm confident I can handle it. Please assign it to me, I'm ready to get started.

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[Cjay-Cyber-2]

@Cjay-Cyber-2 has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

i would love to get assigned to this task

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[oscar24357]

@oscar24357 has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

hello maintainer, please i want to work on this issue, can you please assign me to it, thank you.

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[Gezziy]

@Gezziy has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

i! I’d like to contribute to this issue. I’m a blockchain and backend developer with experience in Solidity, TypeScript, and Node.js, specializing in secure smart contract development and scalable backend systems. I focus on writing reliable, well-structured code and building efficient integrations for blockchain-based applications.

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