Add integration test for users (buffer #18)

[greatest0fallt1me]

Description

This is a backend issue for the GrantFox campaign. This is a backend issue for the GrantFox FWC26 campaign. End-to-end integration test for users.

Requirements and Context

• Implement per the description
• Add focused tests
• Document any API/visible changes
• Adhere to repo's lint and code style
• Must be secure, tested, and documented
• Should be efficient and easy to review

Suggested Execution

1. Fork the repo and create a branch

   git checkout -b task/users-inttest

2. Implement changes
   • tests/integration/users.test.ts
3. Test and commit
   • Run the repo's standard test suite and lint
   • Cover edge cases; include output in the PR

Example commit message

test: integration users

Acceptance Criteria

• Implementation matches the description
• Tests added and passing
• Code review approved
• Docs updated

Guidelines

• Minimum 90% test coverage on changed lines
• Input validation at the boundary; standardized error envelope
• Structured logging with correlation IDs
• Clear documentation and inline comments
• Timeframe: 96 hours

[d3v-active]

@d3v-active has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Please assign this issue to me my eta is 4 hours

ℹ️ Repo Maintainers: To accept this application, review their application or assign @d3v-active to this issue.

[drips-wave]

Congratulations, @d3v-active! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

🧑‍💻 @d3v-active: 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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🌊 Happy Wave 🌊

[greatest0fallt1me]

Hey @d3v-active 👋 — you've been assigned to this issue based on your DripsWave application.

Quick reminders:

• Draft PR early and link it with Closes #<issue-number> so the DripsWave bot auto-closes.
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Looking forward to your PR — good luck! 🚀

[drips-wave]

This issue has been completed by @d3v-active as part of the Stellar Wave Program's 7th Wave 🥳

😎 @d3v-active: You earned 100 Points for completing this issue! After the current Wave ends, you'll be eligible for a percentage of the Wave's reward pool based on the percentage of total points you've earned. Learn more here. You can also Leave a review to share your experience working on this issue.

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