Audit and optimize user token history query filters

[dzekojohn4]

The user token history service contains complex query builder filters for issuedAfter, issuedBefore, and issuer. Review them for edge cases and performance, add missing tests, and ensure filter behavior is consistent with API contract.

[Mmesolove]

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

Hi Maintainer, I have read through this issue and I can resolve it, please allow me work on it.

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[webdevayo]

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

I would solve this in 2 hour. Kindly assign

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[onyemaechiezekiel9]

@onyemaechiezekiel9 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hello, I have gone through the issue and I would love to work on this swiftly

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[kilodesodiq-arch]

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

Please assign me this issue, I have experience.

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[OmniZlatoon]

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

It's >1 hour left. Please assign me now and see results.

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[drips-wave]

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

🧑‍💻 @kilodesodiq-arch: 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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