[SCF high][easy] Add cross-chain amount precision parity tests

[karagozemin]

Goal\nEnsure amount conversions preserve value across Ethereum and Stellar decimal formats.\n\n## Acceptance criteria\n- Cover minimum, maximum, and fractional boundary values.\n- Reject conversions that lose unsupported precision.\n- Keep tests deterministic and offline.\n\n## Complexity\nHigh - small implementation, high reliability value.

[The-Big-Danny]

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

hello, can i WORK on this issue?, i can fix it.

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[oscarj007]

@oscarj007 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hii
I'd love to take up this issue and resolve it please🙏

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[richardgittest]

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

Hi, I would love to work on this issue. kindly assign

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[egekoca]

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

ı can do it ser

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[drips-wave]

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

🧑‍💻 @egekoca: 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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