Add load testing script for settlement creation

[therealjhay]

Current behavior:
No load testing — maximum sustainable throughput unknown.

Expected behavior:
Write k6 load test script tests/load/settlement-creation.js. Ramp from 1 to 50 concurrent users over 60s. Measure p50/p95/p99 latency, error rate, throughput, BullMQ queue depth. Document in CONTRIBUTING.md.

Files to modify:

• New file: tests/load/settlement-creation.js
• CONTRIBUTING.md — add load test instructions

Acceptance criteria:

• Load test script available, documented, and runnable.
• Provides baseline performance metrics.

[emmyokolo2525-cyber]

Hi maintainer, I'd like to work on issue. I'll keep the implementation aligned with the current architecture and submit a focused, reviewable PR.

[Gabugo-tech]

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

please, can i get this please

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[OmniZlatoon]

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

Good day sir, Ready to deliver the task A.S.A.P. Gone through the issue and to be honest, i can work the task with the right tools at hand. please assign me maintainer . My eta is 5 hours

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

[stephaniepez21-art]

@stephaniepez21-art has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

pls assign e this

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[orebams]

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

I would like to work on this

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

[Carlys17]

@Carlys17 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

I'd like to work on this. I'll write a k6 load test script at tests/load/settlement-creation.js with ramp-up to 50
concurrent users, measuring p50/p95/p99 latency, error rate, throughput, and BullMQ queue depth, plus document in
CONTRIBUTING.md.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Carlys17 to this issue.

[codenerde]

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

I will work here

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

[drips-wave]

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

🧑‍💻 @orebams: 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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